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Verified Pro
Welcome to Haas Extension Group, where we take pride in being the premier suppliers, installers, and design consultants of...
Verified ProOver 10 Reviews

Stoneartuk

14 review(s)
Offers services in BARNET
Hi my name is Martin from stone art uk ltd we are a local run landscaping company within the Pinner area we specialise in ...
Verified Pro

Loft & Build

0 review(s)
Offers services in BARNET
We can cover all aspects of a loft conversion and extensions. If you require, we can also design the project including dr...
Verified Pro

Bentham Builders

0 review(s)
Offers services in BARNET
At Bentham Builders, we specialize in high-quality roofing services as well as general building work across North and West...

Recent Builder Enquiries

02 Oct

Insulation | Cavity Wall

Barnet - EN4

Enquiry from: James M

Start Date: Immediate

customer in the barnet area made an enquiry a couple of projects including cavity wall insulation.call anytime and arrange an appointment to discuss. below is some details about this project: are you ...

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22 Jan

Insulation | Cavity Wall

Barnet - EN5

Enquiry from: Bhavesh P

Start Date: Immediate

Cavity wall insulation - beads

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17 Oct

Insulation | External Wall

Barnet - EN5

Enquiry from: DAVID S

Start Date: Immediate

Solid wall external insulation, semi detached bungalow with attic conversion

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21 Sep

Insulation | External Wall

Barnet - EN4

Enquiry from: Kate N

Start Date: Immediate

External wall insulation (not cavity) on one external wall only (side of house).

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28 Mar

Conversion | Loft

Barnet - EN5

Enquiry from: Dinu S

Start Date: Immediate

homeowner loft conversion- no previous quotes please call to appoint

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06 Sep

Building work | General

Barnet - EN4

Enquiry from: Tracy W

Start Date: 1 to 3 months

customer has a general building project they are looking to have done, specially they want quotes for building maintenance. they are unsure of options so would like to discuss with a builder.confirmed...

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27 Jul

New Build | Residential

Barnet - EN5

Enquiry from: Besjana F

Start Date: Immediate

customer in barnet areas is looking to do a couple of projects at the moment, and would like quotes for new build homes.confirmed interest via email at 27/07/2022 12:17.please call to arrange appointm...

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14 Jul

Driveway Repair

Barnet - EN5

Enquiry from: Nabil D

Start Date: Immediate

repair/replace driveway and walkway that was damaged by waterworks are you the property owner: owner of the property property type: terrace what level of service do you require: repair to cracks what ...

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24 Jun

Driveway Repair

Barnet - EN5

Enquiry from: Nabil D

Start Date: Immediate

repair/replace driveway and walkway that was damaged by waterworks are you the property owner: owner of the property property type: terrace what level of service do you require: repair to cracks what ...

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23 Dec

Conversion | Loft

Barnet - EN4

Enquiry from: Elitsa N

Start Date: Immediate

Staircase for loft on semi detached house house with fourteen steps and two left turns .

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24 Apr

House Extensions | Single Storey

Barnet - EN5

Enquiry from: Ashok H

Start Date: Less than one month

ground floor single storey side extension in sip panels. pitched roof. pad and beam foundation and concrete raft foundation. plumbing and fit supplied shower room and cabinets. time scale: less than ...

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19 Apr

House Extensions

Barnet - EN5

Enquiry from: Folakemi E

Start Date: 1 to 3 months

customer made an online enquiry for house extension and confirmed on telephone, sms and email they would like a call with a builder to discuss prices.please call to arrange an appointment to quote. ar...

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07 Apr

Building work | General

Barnet - EN4

Enquiry from: Colette O

Start Date: Immediate

customer in the barnet area made an enquiry a couple of projects including building maintenance.call anytime and arrange an appointment to discuss. below is some details about this project: property t...

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06 Apr

Insulation | Loft / Roof

Barnet - EN4

Enquiry from: Antoni M

Start Date: Immediate

we live in a semi-detached in east barnet. we have just moved in and believe the loft insulation in there is old and probably no longer effective. it would be great for someone to see and provide a qu...

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10 Mar

Building work | Wall Rendering

Barnet - EN4

Enquiry from: Mirjam S

Start Date: Immediate

rendering of outer wall between ground floor and first floor are you the property owner: owner of the property property type: terrace how many bedrooms do you have: 3-4 bedrooms how many walls are you...

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15 Jan

Building work | General

Barnet - EN5

Enquiry from: Karthik R

Start Date: Immediate

are you the property owner: owner of the property property type: other other forms: building maintenance agreed to receive quotes for selected products: yes please call to appoint

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28 Oct

House Extensions

Barnet - EN5

Enquiry from: Lara E

Start Date: Immediate

i would like a back extension

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02 Sep

Conversion | Loft

Barnet - EN4

Enquiry from: Mayur P

Start Date: Immediate

loft conversion quote required for 3 bed semi

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24 Aug

House Extensions

Barnet - EN4

Enquiry from: Jing G

Start Date: Immediate

i would like to build a brick porch (1.5m x 2m) with a door, two windows and pitched roof. are you the property owner: owner of the property do you have plans drawn up: no do you have planning permiss...

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19 Aug

House Extensions

Barnet - EN4

Enquiry from: Jing G

Start Date: Immediate

i would like to build a brick porch (1.5m x 2m) with a door, two windows and pitched roof. are you the property owner: owner of the property do you have plans drawn up: no do you have planning permiss...

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How much do Builder services cost?

How much do Builders cost? Prices for Builders in 2025 can fluctuate relying on the sort of work that you need to have carried out in your residence.

Are you planning to erect a new house or structure? If yes, then you’d probably want to know just how much it’ll take to get the project over the line to help you set a budget and start to plan. Building a new house is requires huge financial investment and as a result, there’s the need to carry out your due diligence before you proceed. In this post, we’re going to give you an insight into the prices charged by builders to erect a new home or structure.

First and foremost, like every other home project, the price charged by builders to construct a new house or structure depends on a wide range of factors. These factors include the size, location, accessibility as well as qualifications of the builders you wish to employ just to mention a few. For instance, you’d expect the cost of building two-storey in London to be a lot more expensive than the price of a one-story building in Scotland. However, we’ll try our best to give you an idea of the price range you can expect to incur to complete your project.
In general, a builder will charge within the range of £10 to about £15 per hour on the average. For small building projects which includes wall and foundations repairs, a builder will typically charge about £11 per hour. However, the price charge will depend on the extent of the job due to the fact that simple tasks such as repointing only costs about £10 per hour, while laying new foundations can cost up to £15 per hour.

The table shows the types of work that Builders typically do and the average cost range of these tasks. Some tasks take longer to finish than others so prices do fluctuate by job.

View our Builder cost guide View our Builder advice

The average price
of a Builder in Barnet is:

£25,867

Builder job Builder cost in 2025
Garage conversion in Barnet £9,750-£18,450
Loft conversion in Barnet £31,250-£67,917
House extensions in Barnet £32,400-£75,600
Loft insulation in Barnet £450-£690
Upvc or wood porch in Barnet £2,625-£4,025
Barn conversions in Barnet £112,500-£172,500
Basement renovation in Barnet £30,000-£46,000
Bedroom fitting in Barnet £1,500-£2,300
Bricklayers in Barnet £300-£460
Cavity wall insulation in Barnet £400-£820
Commercial new builds in Barnet £105,000-£161,000
Conservatory base in Barnet £675-£1,035
Building maintenance in Barnet £2,250-£3,450
Building insurance works in Barnet £2,250-£3,450
Pebble dashed walls in Barnet £2,000-£9,200
Plasterboard dry lining in Barnet £638-£978
Residential new builds in Barnet £105,000-£161,000
Restoration and refurbishment in Barnet £37,500-£57,500
Roof insulation in Barnet £7,500-£11,500
Underpinning in Barnet £2,250-£3,450
Wall cladding in Barnet £1,125-£1,725
Wall rendering in Barnet £3,750-£5,750
Demolition in Barnet £2,440-£3,660
Roof room in Barnet £15,000-£23,000
Shop refurbishment in Barnet £3,750-£5,750
Single storey house extension in Barnet £21,600-£37,400
Soundproofing in Barnet £900-£1,380
Driveway repair in Barnet £607-£51,140
Garden room in Barnet £6,400-£9,600
External wall insulation in Barnet £6,000-£15,000

Related Builder searches in Barnet

Builder FAQs

How to convert a basement into an apartment?

In some cases, it’s possible to convert a basement into an apartment. This can be a great way to incorporate an additional dwelling into your property and increase its value. However, converting a basement into an apartment can be quite expensive and time-consuming.

As with any type of dwelling, you’ll need to think about basic things like access, damp proofing, ventilation, insulation, heating, electrics, plumbing, lighting and décor. If you’re planning on extending your basement, then you’ll also need to ensure that your property is sufficiently supported.

It’s a good idea to consult a professional, like a basement conversion building specialist, to find out how feasible your project is before you go ahead with it.

does loft insulation cause condensation?

The short and simple answer to this question is yes, loft insulation does cause condensation. Over the years, problems with condensation in loft spaces have become increasingly common. While this may not be harmful in anyway, when the condensation becomes excessive it can lead to more serious issues taking root in your loft like wet rot, dry rot as well as black spot mould. Generally, the best thing to do if you’re concerned about the condensation in your loft space and that it may rapidly become a bigger problem is to get in touch with a damp specialist as soon as possible.

 

Even though insulating your loft space comes with a wide array of benefits like making the top floor rooms warmer, it’s however comes at the cost of making your loft or room space cooler. Condensation in lofts take place primarily due to the humid air making its way through insulation or other gaps into the loft space and touching a cooler surface which in turn results in beads of moisture on the timbers, lintels as well as the underside of the roof. This is why its always a great idea make use of thermal insulation with a vapour barrier that’s installed on the warmer side of the insulating material.

 

Condensation in loft is caused by excess moisture in the air and lack of adequate air ventilation. Here are some top reasons that gives rise to this in the loft:

  • Extra insulation has been installed in the loft leading to a restriction on the natural air circulation in the property.
  • When the storage boxes or other items that has been stockpiled in the loft blocks the roof vents.
  • The release of steam and moist air into the loft space by hot water tanks.
how does loft insulation work?

A lot of an uninsulated property’s heat is lost through the roof and that’s even more alarming, when you realize this figure is up to a quarter of the total heat of the house. Hence, the tremendous importance of preventing this heat loss through loft insulation which will go a long way to help you against spending unnecessary thousands of pounds on heating bill as well as energy loss.

 

Loft insulation is an effective method to achieve the desired result, however the question is, how exactly does it work? Well, it’s time to find out!

 

Using either a fireplace or central heating to heat up your home, a large quantity of that heat would be lost through the roof of your home. Generally, heat rises and when it does, there’s simply no way to prevent it - it’s just science. Escaping by both the conduction and convection methods via your roof, the heat escaping through your ceiling, into the loft space and out into the open air outside can only be significantly reduced by laying loft insulation.

 

Generally, the added layer of insulation works by trapping the heat inside the room below the loft so as to enable the air within your house to stay warmer for longer. What’s more? The layer of insulation also keeps cold air from the outside from entering your home. As a result, you don’t have to heat your home as much in order to achieve the same temperature for each individual room. Over time, just by doing this you can potentially save hundreds pounds. Getting it installed in your home may actually seem a bit expensive at first, but it’s something that’ll eventually pay off.

How to cut plasterboard?

Cutting a plasterboard is a relatively simple process requiring only some basic tools. Unfortunately, the lack of knowledge serves as big deterrent for many people who wishes to put it to good use. Plasterboard can actually be sawn using an ordinary timber saw that’s fine-toothed to get a cleaner edge. However, the basic tools you may also need includes a sharp knife (Stanley Knife), pencil, a fine sandpaper, a straight edge and measurement tape as well as a wall board saw. Let’s have a look at the cutting process!

• Firstly, you need to put the plasterboard sheet flat on a firm surface.

• Use the tape measurement to measure the cut you wish to make.

• With the help of a pencil, simply mark out the part you wish to cut on the plasterboard’s front side.

• Once marked, place a spirited level over the marked spot on the plasterboard sheet you want to cut.

• Cut a shallow mark into the plasterboard sheet using the Stanley Knife to cut along the edge.

• The cut should be slow and gradual to ensure you do not wander off the edge of the marked area.

• Once the shallow cut has been made, turn the plasterboard sheet on its edge and deliver a quick and sharp push towards the plasterboard’s back and on one side of the cut.

• Place the plasterboard sheet backing against a flat surface ensuring the line of the cut is over an edge. Once done, give a quick and sharp push towards the back of the plasterboard sheet and on the part of the board is reaches beyond the edge.

• Using a fine sandpaper, remove all forms of paper burrs.

The process of cutting plasterboard requires a lot of practice. If you lack the training and experience, the cutting process is best left to a proficient professional who can guarantee the best results the first time and save you some additional costs due to potential damages.

How to plasterboard a wall?

How To Plasterboard A Wall

If you’re looking to plasterboard your wall, one of the essential things to have in mind is that the plasterboard must be hung horizontally and not vertically. Due to the way they’re manufactured, plasterboard sheets normally possess a “grain along the length. This implies that, it’s only when they’re firmly placed perpendicular against the wall that they’re able to achieve their maximum strength. Materials you’ll need to complete this task includes: Tape measure, stanley knife, pencil, spirit level, drill driver or screw gun, surform, drywall screws and handsaw. Now let’s have a look at the wall plasterboarding steps!

• To plasterboard a wall the first step to take is to place each board in such a way to make the edges the centre of the noggins and upright. Also, the the adjoining walls and door openings should fit closely to the edges.

• Work from the door opening to the ending wall. From the the stud’s edge to the noggin’s centre, use your tape measure to measure a cut board and as a rule to mark up.

• Place your spirit level on the marks and use the Stanley knife to run a line along the intended cut. Once done, turn the board on its edge and give a sharp push on the back to split.

• Cut the paper left with the knife after folding the split edge back on itself. This way, you should get a nice and clean edge.

• In its right position, place the board up against the studwork. Install the screws on the board’s edges where a noggin or upright can be seen.

• Mark lines down across the board at the stud’s centre.

• Cut the end boards to length.

• Install the remaining boards as mentioned above. While doing this, make sure the factory edges are together.

• Cut any board extending into an opening and finish the edges using a surform.

We’d recommend you hire the professional services of a plasterer for the best results especially if you lack the necessary training or experience. Plasterboarding a wall can be a tricky challenge and you’d save yourself some time, money and effort by getting it right on the first trial.

Can builders work on a Sunday?

General construction work should be restricted to the following hours: Monday to Friday 8am to 6pm. Saturdays 8am to 1pm. Most councils advice that noisy work is prohibited on Sundays and bank holidays but you should check with your local council to confirm this.

do fitted wardrobes add value to your home?

The short and simple answer is yes, fitted wardrobes add value to any home or property. Owning a home is mostly the single most expensive asset that a person can possess. And as a result, your home is a very special asset that you’d want to make conducive and maintain to the best of your ability. To retain the value of your home or even add to it, you have to learn how to maximize its potentials using different means. In the UK, a big issue for most households is usually the lack of storage space and most especially, the quickly shaped bedrooms which is really affected with storage problems. It almost always seems like there isn’t enough space to keep our clothes as well as the never-ending portfolio of accessories, devices and gadgets. Therefore, an extra or excess usable room inside a home is always a premium.

In other words maximizing the space you have, especially the unused ones, is a great way to add value to your property. Custom made fitted wardrobes are a great means to making the most out of the space within your home and are also designed to last for several years. Unlike the freestanding wardrobes, modern and fitted wardrobes are not only visually appealing, but they’re also customizable to fully maximize every inch of space within the room. As a result, they’re the ideal solution especially for loft rooms where the bedroom may be slope or oddly shaped to make the best out of the space available.

Potential investors are always eager to invest in homes with enough space that are well maximized. Therefore, a fitted wardrobe will not only help you create a better demand for your home at the point of selling, but it’ll also go a long to increase its value in so many ways.

How do I know if I have cavity wall insulation?

With cavity walls being very similar to other type of brick works, it can be quite confusing to figure out the type of wall your property possesses. If your house was constructed after the 1920s, then its highly likely the you have cavity walls, while older houses (houses before the 1920s) are likely to have solid walls. What’s more? If you happen to own a home that was built in the last decade, then it’s very possible that it was built with insulation installed during construction.

An effective way to determine whether or not your property is built with cavity wall is to examine the brickwork on your home’s exterior. The bricks will typically possess a regular pattern if it features cavity walls. In the event whereby the brick work is covered by render, you can also figure it out by taking a measurement of the wall’s width. If the brick wall is beyond 3000mm in thickness ( from the exterior wall to the interior wall), then it probably features a cavity. Meanwhile, a wall that’s narrower is very likely to be solid. Stone walls, on the other hand, may actually be thicker but are most times solid.

In a situation whereby your house is built using steel frame or timber frame, or made using pre-fabricated concrete, there are varying rules that applies when it comes to insulation and should be examined by an expert before any insulation is installed. More often than not, most contractors will have installed special air vents, which can also be a good indicator that a cavity wall insulation has been done.

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