Estimated electrical work in the apartment sample. Drawing up estimates for electrical installations

Is it difficult to make an estimate for an electrician? The answer will be: more likely yes than no, because the marking of electrical work is a separate and perhaps the most time-consuming section of any repair or construction. The development of an electrical calculation requires the estimator to have extensive and versatile knowledge in the field of electrical installation: features of hidden and open wiring, installation of various types of cable products, as well as installation of complex electrical equipment. The section of electrical work in the estimate includes many prices, but all this diversity can be schematically divided into at least two parts: “repair” and “construction”.

Collections of repair works (TERr (FERr), GESNr) include part No. 67 called "Electric installation work". It is clear that this estimated standard describes possible options for marking electrical installation during a major overhaul if it is necessary to dismantle or replace elements of the building's electrical system. This is the reason for the rather small composition of prices included in this collection:

FERr 67-1 (3) - removal of electrical wiring, cable on brackets;

FERr 67-2 - dismantling of vinyl plastic and steel pipes and wires;

FERr 67-4 - removal of lighting fixtures and other devices: sockets, switches, lamps, electricity meters, etc.;

FERr 67-5 - replacement of a burned-out lamp with a new fluorescent (or incandescent) one;

FERr 67-6 (-7, -8, -9) - replacement of magnetic starters, package switches, lamps, sockets);

FERr 67- (-12-15) - repair of electrical equipment.

A completely different scale and variety of choice is provided to the estimator by a collection of installation works in part No. 8: electrical installations. This collection contains 5 large departments related to electrical work, including:

Electrical distribution devices, substations;

Sewerage of electricity and electrical networks;

Lighting and power electrical installations;

Cable lines and electrical installations for special electrical equipment;

Cable lines and electrical installations for mining industries.

Let's take a closer look at each of these departments. The first section contains prices for the installation of open switchgears for 7-650kV and their components: current and voltage transformers, air and oil circuit breakers, as well as grounding switches, fuses, etc. There is also a GESNm 08-01-25 price for the installation of complete transformer substations. The second and third sections describe the installation of enclosed switchgear for 35-220kV and 3-20kV. Here you can also find prices for the installation of prefabricated, round and branch busbars (see GESNm 08-01-68- GESNm 08-01-76). The fourth section - "Converting devices" - contains prices for the installation of control cabinets, converters and heat exchangers for them.

One of the most important and extensive departments of the part of technical installations and electrical work is the 2nd: electrical networks and sewerage of electricity. If the first section mainly describes the laying of cable lines up to 500 kV along established structures, in trenches, or pipes, then in the second, third and fourth, attention is paid to electrical work in urban and industrial transport networks. Section 5 describes how to mark outdoor lighting, and the 6th part describes the installation of wiring inside buildings. So, wiring can be installed in metal trays and boxes (GESNm 08-02-395 (396)), fastened with overhead brackets (GESNm 08-02-401), laid along established structures (GESNm 08-02-402) or in pipes and sleeves (GESNm 08-02-412 (413)). Next are the prices for the installation of busbars and grounding conductors.

It hardly makes sense to describe the content of each department, since they can be easily found in the editing collections of the current edition of 2013 (2014) or in the Grand Estimate PC. The most important point in drawing up estimates for electrical work is the competent selection of prices that are combined with each other from suitable parts and collections. Any calculation should reflect the actual costs of labor and other resources for the electrical installation.

For clarity, an example of drawing up a calculation for electrical work, let's take a calculation compiled using the Grand Estimate PC (base 2013).

A sample estimate for the technical re-equipment of a water intake station in terms of electrics.

The cost estimate does not indicate the materials and equipment included in the prices, which are taken from the TSTS reference book (base of the Krasnodar Territory 2013). Also, some materials and equipment, incl. ETsV pump of the required power, fluorescent lamps and a control cabinet are taken at the prices of suppliers (excluding VAT). This sample cannot be directly used in another estimate, since it is nothing more than an example of the selection of prices for marking electrical work.

An estimate for electrical work will help you find out exactly how much you have to spend on electrical wiring. We will understand in more detail how to correctly draw up an estimate, calculate the required amount of cable, and perform a full calculation of the cost of work. The manual and calculator will help you independently calculate the price of electrical installation online.

Convenience of the calculator for calculating electrical work

The price for electrical and installation work depends entirely on the volume of planned or already completed activities. Calculation will help to estimate with current prices and calculate expenses not only in total, but also in stages, starting from the starting step - design pricing.

So, for example, when changing the wiring, you will need to install a cable channel.

The cost of the service is calculated for 1 running meter and starts from the width of this electric cable of 2.5 cm. At the same time, the building material of the surface is also important.

The prices for laying an electrical cable, depending on the building material of the walls in an apartment or a private house, change in ascending order, in this order:

• Plaster;
• Drywall;
• Tree;
• Brick;
• Concrete.

The program for calculating installation work will help clarify the current electrical installation prices for preparation, which is associated with cutting a strobe, for installing a power line in a shield and mounting electrical points, which is allocated a large section.

It clearly states the prices for:

• Electrical installation of automatic machine;
• Mounting and inserting boxes for a different number of modules;
• RCD installation;
• call device;
• Installation of a socket, switch;
• Installation of a chandelier, distributor, etc.

So, for example, the cost of installing one outlet is about 250 rubles. Regardless of what kind of socket it is, electric, for TV, for PC or phone. The cost of mounting the switch also does not depend on the purpose of the device.

Features of calculating the cost of electrical work

Installing an intercom, a jacuzzi, an exhaust device in the kitchen, a ventilation system in the hood and connecting the most powerful energy consumers is a solid expense item that the electrical installation calculator will successfully calculate.

Work on the overhaul of an apartment building, design or redevelopment of a living space is associated with the implementation of electrical installation:

• Transfer of electrical cables;
• Connecting separate lines of the most powerful electrical equipment;
• High-quality lighting device and others.

The exclusive involvement of electricians of the highest level guarantees the correct connection of the electrical network and the high-quality functioning of the entire power supply system in an apartment in an apartment building, which consists of a switchboard, sockets, switches, hidden electrical wiring, electrical appliances and lighting equipment.

Nuances of estimates for the installation of electrical equipment

Only professionals of a specialized construction company should draw up estimates. Only highly qualified craftsmen have all the resources for the full implementation of electrical installation during repair work of any level of complexity and volume.

Specialists together with the creator of the design project, based on the wishes of the client, carry out the following activities:

• Development of a plan for the electrical network;
• Selection of lighting fixtures;
• Selection of reliable electrical cables;
• Installation of electrical wiring and connection of lighting fixtures;
• Installation of a guaranteed power supply system.

Installation in an apartment building, in a country house or any other building takes place in stages. A project is being drawn up, the total capacity, markup is calculated. Then the installation stage is carried out - chasing the walls, laying electrical cables, connecting electrical wires, checking the electrical network, connecting electrical appliances.

Step-by-step quality control, the use of highly professional tools and high-quality materials is the key to an impeccable result.

Professionals will take into account the wishes of customers and strive to exceed expectations in the production of tasks. Only professionals will carry out warranty service, perform electrical installation on time. An ad in a newspaper or online will help you find a reliable company.

A striking example of an estimate for lightning protection and grounding

Estimated calculation for mounting and commissioning, start-up work for grounding and lightning protection is simple. This includes the installation of cups-supports of buildings 25 m high: (leveling the roof area 400x400 mm by special spacers, edging the base of concrete.

It is important to install a lightning rod on a concrete base, a cable structure made of metal and welded.

The lightning rod is included, the rack of prefabricated electrical cable structures (without shelves), weight up to 4 kilos, the bridge support with a holder for fastening the rod to the sandwich panel. The estimate also includes cable structures made of metal, a metal profile structure for fastening cable hangers, bookmarks, weight up to 2 kg, holders for fastening a rod on a roof surface, on a structure transparent to light, a grounding conductor, which is installed on a round steel base. Be sure to check the presence of the electrical circuit between the ground electrodes and grounded elements.

The system contains:

• Reception rod AL, D (16 + 10);
• FIX lightning rod base;
• Terminal VA of the same rod element FIX;
• Concrete base edging of lightning rod with fixing element FIX-B16;
• Holder ZN + FT, D 16 C M 8;
• Clamp terminal FT;
• Support AL, fastener 1-bolt standard FT, RD 8-10 X RD 16;
• Support (corner) VA 40 x 2, fast mounting holder PA, RD 8-10 C M 8, H 30.

The estimate of grounding and lightning protection must necessarily take into account the holder for a flat roof surface, PE, RD 8 (concrete), support AL (terminal), etc.

Stages of calculating estimates for laying cables in trays

The construction estimate is the main and indispensable document for the entire period of work, on the basis of which capital investment planning, project financing and settlements between the construction company and the client are carried out.

The estimate of the cost of work on the installation of an electrical cable in trays (a sample is provided by the company) is the basis for calculations for the electrical work performed.

The document includes expenses for construction, installation, purchase of an electrical cable and additional building materials. The estimate also specifies the labor costs required for the work. Coordination and execution of estimates for cable laying in trays are an element of the project.

The project must agree:

1. Local council and authorities in terms of choosing the route of the power line, mounting structures above and below ground.
2. Operating organizations when crossing, approaching or reorganizing engineering structures of the municipality that have already been arranged.
3. Management of railway, tram and waterways during the installation of electrical cable crossings over rails and obstacles on the water.

Approval of any documentation is carried out in the manner prescribed by the instructions of the State Construction Committee. Samples and an example of completed documents are provided by the relevant authorities.

Popular free estimate programs for electrical installation

Mini-estimate is a unique free program for estimate documents. It makes it possible to create estimates for repair work, construction, etc. This program is easy and comfortable.

You can also use free services:

• Lightik-Estimate;
• Cors Estimate;
• Grandee.

The trouble-free preparation of estimates for repair and construction work is useful both for individual use and for companies and teams. The program makes it possible to calculate the amount of the upcoming repairs.

You can also carry out a step-by-step accounting of the work and investments for each estimate, print the estimate documentation in a professional form, send it to Word, Excel.

Filling in the documentation is carried out by pressing one button, there are several price categories for building materials and services. It is possible to calculate both in rubles and in foreign currency at the same time, you can change the exchange rate. The mini-estimate gives no more than 10 items per 1 document. The program "Hector: Estimator - Builder" is needed to compile cost estimates, acts of completed work KS-2, statements of need for building materials and statements of their write-off, accounting for the consumption and receipt of building materials, accumulative statements, as well as for tracking the volume of work performed and their payment according to client and contractor.

The program makes it possible to create, calculate, correct:

• Local, object and summary estimates (Ter);
• Acts of work performed KS-2;
• Cumulative statements (KS-6a);
• Help in the form of KS-3;
• Statements of needs and write-offs of building materials (M-29);
• Statements of the cost of building materials in fact and appreciation.

The program allows you to use different methods of calculating estimates. It is possible to calculate both construction estimate documents and estimates for design and survey work (form 2-P). Estimated and regulatory bases are supplied together with Hector.

How to calculate an estimate for electrical work (video)

The estimate for electrical work allows you to understand what the cash costs will be to complete the task. The document acts as a guarantee, control.

Before proceeding to the installation of electricity in the house, you need, as well as an estimate for materials. This is necessary in order to calculate the approximate (or even exact) costs and during the electrical installation not to face a situation where there is not enough money for sockets or switches. Based on the prepared cost table, you can understand whether there are enough material resources or it is better to purchase cheaper materials in order to surely get away from shortage problems. Next, we will tell you how to make an estimate for electrical work, providing step-by-step instructions with a video, as well as a sample.

Step 1 - Prepare documents

The first step is to prepare the documentation on the basis of which the estimate for electrical installation will be drawn up. For calculations, you need to collect the following documents:

1. Plan of the room, which will indicate the wiring diagram.
2. Electrical equipment placement project.
3. Specifications to be taken from the electricity supplier (if necessary). About that, we told in a separate article.
4. Permission to connect to the power grid (if necessary).

In addition, depending on the situation and the characteristics of the facility, you may need an act of balance ownership, a document on the limitation of operational responsibility, as well as an order for the supply of electrical equipment. All these documents are mostly used in enterprises. As a rule, in order to make an estimate for electrical work in a residential building, it is enough to prepare the first 2 documents from the list, as well as a permit for electrical installation.

Step 2 - Performing the calculation

Calculating the cost of installing electrical wiring is not too difficult, but you will have to take this procedure seriously enough. The more points indicated in the estimate, the less likely that at the end of the electrical installation there will be situations due to which you will have to overpay. So, drawing up an estimate for electrical work consists of the following steps:

1. Obtaining a floor plan with reference to electrical appliances. You can get it from BTI.
2. Issuance of a permit to connect to the power grid.
3. Bringing all technical conditions to the standards.
4. Quantity calculation based on wiring diagram.
5. Search for the best deals on materials.
6. Cost calculation.

If, after you make an estimate for, it turns out that there is not enough money, you will have to reconsider the project and, if possible, either remove some electrical points or purchase cheaper materials.

This manual is suitable for those who want to independently calculate the cost of installing electricians. If you doubt that you can correctly draw up an estimate of electrical work, it is better to entrust this matter to specialists, but they, of course, will take money for this. Another important point is who will perform the electrical installation. Would you like to conduct electrical wiring in your own home? Then you skip this moment. If it is assumed that the electrician will be carried out by a company or a private electrician, it is necessary to find out what the cost of electrical installation will be, as well as the dismantling of the old network (if the apartment is not a new building) and be sure to include this figure in the estimate.

Please note that many companies offering electricity services have their own online calculators on their websites, with which you can quickly calculate the cost of electrical installation. In the same place, as a rule, you can find prices for the installation of certain electrical points (sockets, switches, meters), cable laying and wall chasing for wiring. This information will allow you to easily calculate the cost of electrical work at the new prices.

It should also be noted that estimates are complex (for the entire facility) or local (for a separate room / room).

It is best to create a cost plan in Microsoft Excel. All you need is to download this program to your computer, install and create a table in it. Next, enter all the values ​​\u200b\u200bin the table, after which, based on the formulas, make calculations. How the estimate for electrical work in Excel is prepared is clearly described in the video example:

Sample of settlement works

Prices for 2019

Well, the last thing I would like to provide is the estimated prices for the installation of electricians in residential premises. So, in 2019, the cost of electrical installation is as follows:

• installation of a cable channel (1 r.m.) - 120-180 rubles. (depending on the material of the walls and the dimensions of the product);
• cable laying in an open way about 60 rubles. per linear meter, 60 with hidden wiring;
• installation of a circuit breaker - 300-600 rubles;
• installation of a shield - from 1500 to 5000 rubles;
• connection of a wall sconce - 700 rubles;
• socket installation - 300 r.

These are the main prices for electrics, which we recommend focusing on when drawing up an estimate for electrical wiring work. In general, excluding the price of materials, the cost of electrical installation in 2018-2019 will be (in rubles):

• one-room apartment: from 18 thousand if the walls are made of brick, from 25 thousand if they are concrete;
• two-room apartment: from 25 thousand (brick), 35 (concrete);
• three-room apartment: 40 thousand (brick), 45 (concrete);
• wooden cottage: up to 100 sq.m. 65 thousand, over - from 95 thousand;
• brick house: up to 100 sq.m. 75 thousand, over - from 110.

Price list example:

That's all I wanted to tell you about how to make an estimate for electrical work in an apartment and house. We hope that our instructions were useful and understandable for you.

Before performing work on the repair and replacement of electricians, at the preparation stage, a wiring diagram is drawn, according to which all necessary calculations are made. First of all, they make an estimate for electrical work, which determines the amount of materials and labor costs. Thus, it is possible to determine in advance the upcoming expenses and calculate the required amount of money.

Documentation and calculation data

Before drawing up estimates and carrying out calculations, it is necessary to collect a mandatory package of documents that will be used in further calculations.

The package includes several of the following components:

• Plan of the object with applied future electrical wiring.
• Separately, a project for the installation and connection of electrical equipment is drawn up.
• If necessary, the presence of technical specifications issued by the organization supplying electricity is required.
• In addition to the listed documents, permission to connect to the electrical network may be required.

Depending on the specific features of a particular object, an act is required that determines the balance sheet belonging of the object, as well as a document limiting operational responsibility and an order with a list of equipment supplied. These documents are usually required when performing work at industrial enterprises.

At the preparation stage, the materials are predetermined. For example, switches and sockets should not be selected based on appearance, but on the basis of technical characteristics. For increased loads, you should choose more powerful and, therefore, more expensive sockets, preferably with a ground contact. Accordingly, the price of different products will differ, the final estimate for electrical work will depend on this. Therefore, many owners who do not have special knowledge prefer to seek help from qualified professionals. They will help not only to choose the appropriate electrical installation products, but also to select the cross-sections of cable and wire products, based on the expected loads.

Usually, the company that made the preliminary calculations carries out the ordered electrical work in the future. When drawing up an estimate, it is necessary to take into account who provides the materials - the customer or the contractor. This is a very important factor that largely determines the final price of electrical installation in the estimate.

Settlement transactions

The calculation of the cost of electrical work takes up the bulk of the time required to draw up an estimate. This event is very serious, because it is necessary to cover the maximum number of works. In the future, this will help to avoid situations when, at the end of the wiring, certain works are found that were not taken into account during the calculations.

Thus, unforeseen overpayments arise, which the customer did not count on at all. Therefore, you need to carefully determine the list of works and carefully consider the choice of necessary materials. Their number is calculated on the basis of regulatory documents, which determine the expense for each item.

The search for equipment and materials should be carried out in several directions in order to compare prices from different suppliers. After that, only the most profitable offers are considered. If, after performing all the preliminary calculations, there is not enough money, it is recommended to revise some positions by reducing the number of outlets or replacing some products with cheaper options.

Separately, they draw up and calculate an estimate for electrical work. Here, too, there are some features that can turn into very unpleasant surprises. Some unscrupulous electricians calculate the cost by individual points or square meters, which is contrary to regulatory requirements. In fact, first of all, the footage of the cable and strobe, the number of switches, sockets, lighting fixtures and other equipment should be taken into account.

That is, instead of the vague concept of a “point”, the installation of specific products and the cost of an electrician to install each of them are calculated. This approach allows you to avoid unnecessary costs and pay only for the services actually rendered. Every reputable company has approved fixed rates, which can be found in advance on the website or during the scoping process. Thus, the price does not change during the entire time of the electrical installation.

A preliminary acquaintance with the prices can be done independently using the online calculator. With their help, you can make an estimate and determine the approximate cost of work in a one-, two-, three-room apartment or in a private house. The simplified version gives results with a probability of 90% of the actual cost of installation work.

Using the online calculator

Many hosts use an online calculator after receiving a quotation from a specialized organization. This allows you to double-check the data received, calculate and establish how much the required amount of work really costs.

It is possible that the services of the company will have to be abandoned and look for cheaper options. If there are certain difficulties with the preparation of an online estimate, it is recommended to invite a specialist from a third-party organization to conduct a so-called independent examination. The cost of his work will in any case be significantly lower than possible overpayments at inflated prices.

Currently, most serious companies prefer to acquaint their customers with prices in advance with the help of online calculators. All initial data are entered by the estimators in the presence of the customer, while the cost of materials is not taken into account. If desired, these data can also be entered based on the average cost in the market of electrical products.

You should also take into account the cost of consultations and the preparation of the estimate itself, which includes the calculation of electrical work. This point is clarified immediately, even at the very first visit of an electrician. In addition, the company can have a significant discount on materials as a regular wholesale customer. Therefore, in many cases it is more profitable to order them from a contractor, and not to purchase them yourself from dubious sellers.

When creating any project, the estimate is an important document, the purpose of which is to determine all the required costs, taking into account the labor and materials expended. Electrical work plays a very important role in construction, so in this case, saving money at the expense of quality is unacceptable. In this regard, a serious attitude is required to the preparation of estimates for electrical work.

Required Documentation

To compile estimated costs, you need a plan for the BTI room, tied to electrical equipment, and a design project for the electrical section. The following documents are also required:

• permission for power connection;
• TU for electrical work;
• a document on the limitation of operational liability;
• act of balance sheet ownership;
• electrical equipment project.

An explanatory note, (calculation), a plan of group networks (lighting and electrical equipment), an additional potential equalization scheme and approval of the plan in Rostekhnadzor should also be included.

Among other things, an order is drawn up for electrical installation equipment, which includes information about the length of all wires, their manufacturer and auxiliary materials. The order is drawn up with the same accuracy as the estimate.

A variety of estimates

Estimates for electrical work are divided into two categories: summary (complex), compiled for the entire building, and local (object), performed separately for the premises. Before you start writing them, you need to complete the rationale for the investment. At the same time, the estimated cost of all works is determined. Documents can be submitted in two forms:

• estimate calculation (contains a detailed cost price with an overestimation of the level of costs);
• estimate (calculation is carried out according to design drawings).

The second type allows you to make an estimate for electrical work more efficiently.

List of works

First of all, labor costs should be described. This will help avoid price increases in the future. The list of works is presented below.

1. Installation of wiring (open) on brackets on a concrete surface and on plaster walls.
2. Laying corrugated wiring (open).
3. Placement of the electrical box on concrete, brick pad and plaster.
4. Mounting the overhead junction box.
5. Installation of a switch, socket and decorative insert.
6. Installation of the junction box in plaster, brick wall and concrete.
7. Change of the triple electric block.
8. Installation of a socket.
9. Installation of a button for an electric bell.
10. Assembly of an electric bell.
11. Creating a hole in a plaster (brick, concrete wall) for a socket.

Writing algorithm: stage 1

When drawing up an estimate for electrical work, it is necessary to determine the exact amount that is intended for the event in question. Further, the working principle is described below.

1. Get a floor plan with reference to electrical appliances. BTI or a studio that draws up projects for the electrical part can help with this.
2. Obtain a power connection permit. This should be done in the DEZ or HOA. In the same organizations, you should take a document on the delimitation of operational responsibility between the balance holder and the owner.
3. Bring all specifications to the standards, as they are strictly checked, and any deviation entails a refusal.

Writing algorithm: stage 2

After completing the previous operations, you need to perform a number of important actions.

1. Turn to good specialists who make up the project of electrical appliances. At this stage, it is important to turn to experts, because only professionally performed work can guarantee safe and constant operation for a long time.
2. Choose the best company that provides installation services. To do this, you should ask for information about it, find out customer reviews about the quality. These costs must be included in the estimates for electrical work.
3. Select suitable electrical appliances and include their cost in the estimate.
4. Calculate the ratio of costs and balances. If funds are scarce, the project should be made simpler by choosing less expensive equipment.

An example of an estimate for electrical work

The object is written in the title of the document in question. The front page indicates the total cost, installation costs, the calculated labor intensity and estimated wages. More detailed information is presented in the form of a table divided into several columns. A sample estimate for electrical work is presented below.

The first column is the serial number, the second is the position. The third indicates the cipher and the work itself. The fourth column should indicate the quantity. The following are columns with the cost of work and labor costs. At the end of the table, the results are summed up, and the person who made the estimate and the one who checked (position, signature, full name) also signs.

Electrical work is a rather troublesome and time-consuming process. Calculate its value currently allow different methods of calculation: mixed, index, compensation, resource. The use of specialized software will greatly simplify the task and avoid errors, because the cost of electrical work depends on the estimate, and this affects the quality and duration of the equipment’s service life. To do everything at a high level, you can contact the estimate department of a power supply design company. Experts will do all the work qualitatively in the shortest possible time.