Estimate - a calculation plan that displays all the upcoming costs for the implementation of a particular project. Preparation of budgets for electric installation work - a very time-consuming process that requires a professional approach on the part of the performer. Without this document, it will not be possible to find out the exact amount of expenses for the implementation of certain works. The whole process of budgeting can be divided into several main stages.
There are two types of estimates for electrical wiring and equipment:
In simple words, if you need to calculate the cost of laying, for example, wires in one office or workshop, look for a compilation sample local estimate. But complex calculations will be needed, for example, during the construction of a new facility or during its comprehensive repair.
So, before starting any calculations, it is necessary to collect a certain package of documentation, which includes:
The listed documents must not only be collected, but also carefully studied the information presented in them. Particular attention should be paid explanatory note and power supply plan.
After collecting and processing all official information about the object, the estimator must determine whether the forthcoming costs are justified. The specialist will be able to answer this question only after he gets acquainted with the current tariffs for each type of upcoming work. It is also necessary to compare the actual conditions in which the electrical installation will be carried out with the information submitted on paper.
After the equipment costs are calculated, compare them with the amount included in the project budget. If the waste exceeds what was planned, look for similar equipment options at a lower price.
An important stage in the preparation of estimates is the choice of a contractor company providing electrical installation services. Your opinion about the organization should be formed not only by dry calculations of the cost of services, but also by reviews of previous clients. The costs of finding a contractor and making an agreement with the workers are also included in the estimate.
After collecting and processing all the information, it comes time to draw up the final estimate, which can be of two types:
It is easy to guess that a better, more complete and useful estimate will be drawn up on the basis of a larger number of documents and taking into account all the nuances of specific electrical installation work.
The range of works that should not be missed in the estimate
Be sure to take into account the cost of labor for installers in the estimate. Without these data, information on project costs will be considered incomplete. In addition, do not forget to write the following works in the official document:
Let us consider in more detail the structure of the local estimate for cable laying. On the title page the document must indicate the date of its compilation, as well as the initials of those officials with whom it was agreed and approved. In addition, the name of the construction site where the electrical work will be carried out should be written.
The above information should be placed in two columns, one of which indicates base price, and the other one is the current one.
You also need to specify the date on which the prices of works and equipment were calculated. You can designate this information, for example, with the following phrase: "The estimate is made in prices for June 2017." All other information of the document will be presented in a schematic form. In the so-called "header" of the table, the following columns should be indicated:
Such an estimate may consist of several sections (categories), into which it is conditionally possible to “sort” all electrical work. For example, manipulations for the dismantling of old devices will be placed in the first section, and work on wiring and connecting the cores of new wires - in the second.
At the end of the document, it is necessary to indicate the total amount of costs for the implementation of electrical work, indicate the name of the contractor and the verifier of the estimate, and then certify the document with their signatures.
As you can see, budgeting is a complex and multifaceted process. It is important not only to have the skills of financial calculation, but also to know the basics of electrical installation, otherwise the estimator will not be able to deal with the entire list of works and features of professional equipment. That is why specially trained personnel, professional estimators are in demand, which enterprises hire to perform various kinds of calculations and draw up financial reporting for upcoming 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.
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:
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 given a large section.
It clearly states the prices for:
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.
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.
Works on the implementation of the overhaul of the apartment premises, design or redevelopment living space associated with the implementation of electrical installation:
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 the apartment in apartment building, which consists of a switchboard, sockets, switches, hidden electrical wiring, electrical appliances and lighting equipment.
Compose budget documents should only professionals of a specialized construction company. 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:
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. Find reliable company An ad in a newspaper or online will help.
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:
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.
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:
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.
Mini-estimate is a unique free program for estimate documents. It allows you to create estimates for repair work, construction, etc. This program- light and comfortable.
You can also use free services:
Trouble-free preparation of estimates for repair and construction works 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 at the same time to calculate both in rubles and in foreign currency, you can perform course replacement. The mini-estimate gives no more than 10 items per 1 document. The program "Hector: estimator - builder" is needed to compile budget documentation, acts of work performed 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 for the client and contractor.
The program makes it possible to create, calculate, correct:
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.
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.
It is necessary to calculate the cost of work and materials before electrical wiring in an apartment or a private house and for settlement with the customer after the work has been completed. Estimates are needed for clarity and so-called transparency in the calculations of an electrician with a customer.
The estimate for the power supply of a private house or apartment consists of a local estimate for the cost of electrical work performed and the cost of electrical materials.
First, a preliminary estimate for electrical work and the materials necessary for installation are considered. It is possible to make a preliminary calculation of the estimate at the facility, during the first meeting with the customer. It is performed on a tablet, in the field - at a construction site, and therefore it must be understood that inaccuracies are possible. But the order of amounts for work and materials will be correct, that is, changes at times are excluded.
The most accurate calculation is possible when working at a computer, after the drawing is made. On the architectural plan object, the placement of sockets, switches and lamps is done, then junction boxes are applied, the location of the junction boxes may change during installation, but their number will most likely remain the same.
After all calculations are completed, the electrician's estimate for work and materials, along with the drawing, is provided to the customer, usually sent by e-mail.
The second stage of work with estimates is to fill in the estimate with accurate data, all this is done during the wiring process.
After all electrical installation work is completed, a general calculation is made and a ready, completed estimate is provided to the customer.
For example, a sample estimate for the power supply of a private house is presented, the total area is about 130 square meters. The purchase of sockets, switches and lamps is usually carried out by the customer.
Drawing up an estimate, a sample of which is presented in Excel format, consists in filling in the corresponding cells, in the corresponding rows and columns.
The estimate consists of three main sheets. The first sheet is a sheet with the main calculations between the contractor, represented by an electrician, and the customer, represented by the owner of the house or apartment. This sheet shows discounts, as a percentage and in rubles. Also, the total amount for the work performed without discounts is shown, total amount discounts and the total amount for the work performed with discounts.
The second sheet is an estimate for all electrical installation and repair work. The estimate consists of lists of works of the three main components of electrical installation in a private house or apartment: the first part is the installation of electrical wiring, the second part is the installation of switchboards and automation, the third part is installation work, that is, work on the installation of sockets, switches, lamps and other wiring products or devices. And repair work - such work is possible at facilities where the "masters" have already worked.
The third sheet is an estimate for materials, usually a preliminary estimate for electrical materials for installation and installation. It consists of three parts. The first part contains a list of electrical materials for the installation of electrical wiring, the second part consists of a list of materials necessary for the installation of switchboards and automation. And in the third part of the estimate, a list of materials for installation work is presented.
For each object, a new estimate is drawn up, while adding the necessary, additional positions or removing unnecessary positions.
The example shows a preliminary estimate for the installation of electrical wiring, shields and automation, without the installation of sockets, switches and lamps, and a preliminary estimate for materials.
A drawing for calculating an estimate is not a house power supply project. It is done on one sheet for clarity and convenience when calculating estimates. All drawing work, at the preliminary stage, is performed as additional work in the calculations. It takes time to make a project, and at this stage there is no clarity in the intentions of the customer and it is necessary, as soon as possible, to calculate and provide the customer with an estimate with all the costs of electrical installation, and clarify the intentions!
I would like to mention one important point- Drawing up, calculation of the estimate is work. But, almost always the cost of this work is included in the discount. This must be remembered!
As you know, any apartment renovation begins with electrical work. It is necessary to clearly define the layout of future furniture so that new sockets and switches are not located behind it or in places where they are not required.
The most important and significant is the planning stage; in a private house or apartment, you need to carefully consider in advance:
Installing electrics in the kitchen for new furniture is perhaps the most important stage in planning the electrical network of an apartment. The modern kitchen requires a lot of attention, as the most energy-intensive room in any apartment, private house. We advise you to read the recommendations for wiring in the kitchen. Calculate the cost of installing electrical wiring and transferring sockets for the kitchen to order following our instructions. Download quote now
Electrician in the kitchenInstallation of electrical wiring for overhaul apartments, the construction of a private house is carried out in two stages. From the beginning, a rough electrical installation is carried out, after finishing, installation work is performed. You can learn more about the procedure for conducting electrical work in an apartment in the section
Where to start repairGood electrical wiring is essential to ensure safety and reliability. Coziness, safety, comfort - these are the main requirements for the future living quarters. If you miss such an important point during the overhaul of an apartment or the construction of a private house, then in the future a lot of problems may appear that will be difficult to eliminate without significant financial costs. Poor-quality electrical wiring can cause a fire and deprive not only property, but also life.
Saving on electricity is unacceptable. Electrical work must be carried out immediately in full using high-quality electrical materials, then the wiring of the apartment will last for many years. By purchasing low-quality electrical materials, you run the risk of facing large financial costs in the future for troubleshooting and troubleshooting in the electrical network of your home.
As a rule, wiring from the developer is always carried out to a minimum, without taking into account modern requirements. Owners of apartments in new buildings should take care of upgrading existing wiring to connect powerful household appliances - washing machines and dishwashers, air conditioners, water heaters, etc.
In most cases, the electrical wiring from the developer is made of low-quality materials in violation of the requirements of SNIP and PUE in force in Russia. It is almost impossible to check the quality of electrical work performed in a new building. Electrical wiring is laid in the walls and ceilings of the building. There is a high probability that after the repair of the apartment the light will stop turning on, the sockets will stop working. It's a shame? Therefore, before starting an expensive repair, it is necessary to carry out electrical work to eliminate a possible marriage of electrical wiring in a new building from the developer. Learn about the main disadvantages of electricians in a new building.
Electricity in a new building
Ceiling electrical wiring
Draft wiring in a new building
Installation of socket boxes in drywall
Photos of one-room, two-room, three-room apartment, a private house in St. Petersburg (St. Petersburg) and Len. areas where we performed turnkey electrical wiring. Electrical work was carried out according to electrical and design projects, according to those. to the task and wishes of customers, taking into account the current requirements of the PUE and SNIP.
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Works on the installation of electrical equipment are among the most common, as they include a number of different processes: lighting, burglar alarms, laying power cables, power supply to auxiliary premises. In order to do all this qualitatively, a properly drawn up estimate of electrical work is necessary.
The estimate for electrical work refers to, which can then be included in the object financial documents. This includes laying cables, connecting to electrical networks, installing shields and junction boxes, installing sockets, switches and electrical appliances, and much more. At the same time, it is important to accurately or approximately understand the amount of funds needed in order to assess your capabilities and, if necessary, adjust the calculations.
To prepare a reasonable calculation, first of all, a package of documents should be drawn up, on the basis of which an estimate will be formed. It usually includes:
For residential customers, the first two documents from the above list are usually sufficient. If it's about industrial enterprises, then a number of additional papers may be needed: an order for the delivery of equipment, a document on the limitation of operational liability, an act confirming balance affiliation object.
Before drawing up a diagram, the customer, together with an electrician, should consider the range of all devices that will consume current and determine their location in the house. The sum of the powers of all devices indicates the total power consumption, which should be compared with the maximum load allowed for the power line to which the connection is made.
The type and power of each device, the conditions for its placement determine the cross-section of the wire and the type of insulation, and, consequently, the technical characteristics, prices and cost of the entire wiring system in the house. When drawing up a diagram, an electrician divides devices into groups with separate lines. Powerful devices (electric stove, washing machine, boiler) must have separate lines with a total load of no more than 5 kW. After that, the placement of low-power devices (lamps, sockets, switches) and junction boxes is detailed. Approximately the scheme may look like this: 
As a result, according to the scheme drawn up and agreed with the customer, the contractor begins to form a local estimate.
After preparing the schematic diagram, the calculation of the cost of the entire process begins. It can vary greatly depending on the materials and devices used, the condition of the object, the list necessary work. The customer must control the process of drafting the document in order to be able to correct it if necessary.
So, the next steps in preparing an estimate are as follows:
If the costs exceed the budget planned by the customer, then you need to carefully review all costs, and, if possible, replace some of them with cheaper ones. Alternatively, you can reduce the number of electrical outlets (for example, replace the ceiling lighting with a regular chandelier or reduce the number of outlets).
Such a discussion is best carried out directly on the site so that there are no misunderstandings.
The estimate of an electrician for an apartment or a private house is formed from two tables:
The calculation of materials is carried out on the basis of the calculation of the parameters displayed in the diagram. Usually, contractors, if we are not talking about expensive materials, round their number up to be able to carry out work if small inaccuracies have crept into the calculations. The table indicates the amount of material in natural units of measure (pieces, meters), the unit price and the amount for each item.
First, all the necessary components for the installation of electrical wiring (cables, sockets, switches) are entered in the table, then the elements of automation and the shield, after which the consumables that are necessary for the installation (dowels, clamps, self-tapping screws, etc.) are indicated. Sometimes contractors put in a separate table the installation of switches, sockets, chandeliers and lamps, which are most often purchased by the customer in accordance with their personal preferences.
If you need to change all the electrics in an old house, then the final price will be much higher than in a new building. This is due to the fact that it is necessary to perform a laborious and expensive process of dismantling electrical appliances, a shield and wiring. Also of great importance is the material from which the building is built (concrete, brick or wood), the finish used.
The choice of wiring method is a matter of agreement between the customer and the contractor. The hidden method, which is more familiar to all of us, when the cable is laid in a strobe knocked out in the wall or hidden behind finishing elements (panels, suspended ceilings), is used in rooms where people live (multi-storey and private houses). It has a number of advantages, in particular, the cable is not exposed to external influences, lasts a long time and eliminates electric shock to residents. However, correcting any problem will require damage to the interior and its subsequent repair.
The open method is much cheaper, since it involves placing cables in special trays or corrugated plastic pipes that are attached to the ceiling or walls with plastic brackets. Most often, this type of wiring is used in residential buildings from timber or logs, as well as in non-residential premises(garages, barns, production workshops, livestock farms). An open cable laying method is less aesthetic than a hidden one, but it is much cheaper (sometimes at times) and allows easy and quick access to the network in case of a breakdown.
When carrying out electrical work, one should not forget about the quality of external wiring (on the external surfaces of structures, supports). It is not worth saving on its insulation, it must be resistant to mechanical stress, frost-resistant, and immune to insolation. In such cases, it is better not to experiment and strictly follow the approved "Electrical Installation Rules".
Not all customers, especially private ones, are well versed in electricity, sometimes unscrupulous firms can take advantage of this and "wind up" the price. To avoid this, before concluding a contract, you should go to specialized stores and find out the order of prices. However, much simpler and quick option is an internet search. Many construction companies post on their websites up-to-date information on the prices of some works (wall chasing, installation of a meter, socket, switch), and construction supermarkets - prices for the necessary goods.
You can also find special online calculators on the net, where you need to enter the necessary parameters and get an approximate calculation of the expected costs. This, of course, cannot be considered an estimate of the performance of work, however, such calculations can serve as an aid in discussions with the contractor.
