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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

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...
Verified ProOver 10 Reviews
Welcome to Home Counties, our team handle projects large and small from residential to commercial. Our Driveway service...
Verified ProOver 20 Reviews

Aquatech Surfacing

48 review(s)
Offers services in BARNET
WHY CHOOSE AQUATECH SURFACING FOR YOUR HOME IMPROVEMENTS. We have over 40 years experience On every project we underg...

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 much do bricklayers charge?

Do you want your house to be built using brick? Or perhaps you just require the professional services of a bricklayer. Regardless of your bricklaying needs, the cost charged depends on each job as every job is unique. Bricklayers generally look at each task individually and charges based on the complexity of each. We’ve put together this guide to give you an idea of the costs charged by bricklayers. Let’s have a look!

Generally, bricklayers charge either based on a daily rate or a fixed price for a particular amount of bricks ( usually a thousand bricks or 10 - 12 metres square). On the average, an experienced bricklayer can charge within a range of £150 to £200 daily rate and if a labour is needed for the job, an additional £60 to £100 may be included to get the job completed in a quick and fast manner. If the quoting is done based on the number of bricks to be incorporated, then a thousand bricks will be quoted in between £350 to £450 which should be completed in a couple of days.

You should however take note that most times, the bricklayer’s cost will depend on the amount of work involved in the project. As a result, a more tedious and challenging project will most definitely cost more than a simpler one. Examples of some difficult projects that’s likely to cost more are hard to reach areas, difficult sites as well as second storeys which are considered to be more challenging than single storey buildings. What’s more? The complexity of the project is also a great cost factor. While some projects are basically direct and straightforward, others involve curves and more complex designs which will ultimately make the cost jump up.

how much to render a 3 bed house?

Rendering a house comes with a plethora of benefits. Not only is it able to brighten up houses that looks tired especially those with damaged brickwork or having discoloured render, but its also the final step of external wall insulation.

If you own a 3 bed house, you’ll probably want to know just how much it’ll cost to have it rendered. If yes, then you’ve come to the right place! In this article, we aim to look at the cost of rendering a house using the standard 3 bed house as an example. Firstly, it should be stated that there are numerous factors that affects the price of a rendering a house which includes the rendering type, the size of the house, the ease of access, the prep work required, whether or not scaffolding will be needed as well as your location and the quality of the contractor your hire. Out of all these factors, the most significant variables are probably the type of rendering you go for and the size of the house.

There are three types of render and the one you opt for will play a key role in the price of your 3 bed house. In this article, we’re basing our cost estimate for a 3 bed house (3 bed detached) on the size ranging from 110 per square metre to 160 per square metre. Now let’s look at the cost per square metre of each rendering type.

✓ The silicone or acrylic thin coat render is usually the most expensive option of the lot due to the fact that they’re the newest and also the best type of render. This rendering type usually costs within the range of £45 to about £75 per square metre.

✓ The monocouche modern through coloured rendering type are able to offer a decorative and waterproof finish for walls. They usually costs within the range of £35 to about £70 per square metre.

✓ Sand and cement render type is the traditional type which has been applied for several years. This rendering type usually costs within the range of £20 to about £45 per square metre.

what is a garage conversion?

What is your garage being used for? If your answer is anything besides your vehicle, you’re in the majority in the UK. In the country, according to a research by Admiralty Loans, several home and property owners now use their garage as dumping ground for all sorts of stuffs asides a car. Ultimately, this gives rise to garage conversions as the more or less underutilized space can be converted into a living space which can be more beneficial while also adding more value to the property.

A garage conversion is a fast and relatively affordable route to adding more floor space within your home. It’s basically the act of changing your garage into something other than a storage or a place in which you can park your car. This can be anything from a bedroom to a playroom and anything in between. It’s a great way to provide extra space to allow your family to spread out and have more privacy while still within the walls of your home.

A garage conversion project is a huge one which mostly does not require a planning application so far the conversion is internal. However if you’re planning to increase the garage’s size or change the exterior of your home, or convert your garage into a separate room, then you may require a planning permission before getting started. It’s always wise to consult your local authority before carrying out any work to be on the safer side.

A project of garage conversion’s magnitude is better left to a reliable professional who have the experience when it comes to dealing with building regulations and more. This way, you’d also get to save yourself some headaches and some extra cash which may result from possible costly errors.

How much plasterboard do I need?

How Much Plasterboard Do I Need?

Although many people especially contractors have a tough time estimating the number of drywall or plasterboard needed to complete a project, it’s a rather simple task if all factors are taken into consideration. If you’re able to follow the same procedures taken by professionals to count dry wall sheets, you’ll be in the right direction. Let’s have a look at the procedures to follow!

lTake Square Footage Measurement

• Measure the square footage of the area where the plasterboard will be fitted.

• Multiply the height by the width of each wall or ceiling area.

• Add all quantities to obtain a total square-foot amount.

lCalculate Drywall Sheets

• To calculate the number of drywall or plasterboard sheet is very simple once you’ve gotten the total square footage.

• To get started, simply divide the total square footage of area by 32 (that’s if you are using a 4 by 8 sheets) or you can also make use of 48 to make the division (only if you’re making use of the 4 by 12 sheets).

• The answer you get after the division will give you the full number of plasterboard sheets that’s required to complete the project.

We’d recommend you include an extra 10 to 15 percent of whatever you calculate to take care of the possible odd cuts and wastages. This implies that if your total area is 1600 square feet while incorporating 4 by 8 sheets, simply divide 1600 by 32 which equals 50 sheets, now take 10% of 50 which equals 5, then add back the 5 extra to the 50 sheets earlier calculated to get 55 sheets. If you wish to estimate the cost, simply multiply the number of sheets gotten by the price per sheet. Do not forget to include delivery charges and local taxes.

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.

how long do house extensions take?

If you’re about to start your house extension project and wondering how long it’ll take to complete, you’re not alone! This is one of the most common questions that’s asked by homeowners in the UK and across the globe. However, there’s no single precise answer for this as there are multiple factors that’ll affect the length of time it’ll take to complete your home extension. These factors include the size of the construction work as well as whether you’re planning to live in the house after completion or otherwise.

For a single extension, the length of time it’ll take to complete the home extension is normally up to 3 months. So let’s break this down:

As you would have expected, the first step to be taken is the preparation of the site. You start by digging out the footing and preparing the foundation which should take about 2 weeks. This is then followed by the damp course installation as well as the fitting of any drains needed around the extension which will also take a further 2 weeks.

The 5th week will be for the construction of the external walls as well as putting the blockwork in place for the provision of the cavity wall insulation. A further 2 weeks after this, will be dedicated to the installation of the roof structure and the internal walls.

It’s at this junction that you’ll call on your weather proof installer to fit in your uPVC windows and doors. Once done, the gas fitters and electricians will have to be on site to connect power to your new extension building. Subsequently, this will be followed by internal wall plastering as well as breaking through your main house. Once the plaster is dried, decorations completed and all the required furniture and units installed, the extension is ready for use.

how much is a loft conversion?

With the ability to add approximately one third of your existing living space ( by converting your old, unused attic) to your home or property without having to let go of your garden, it’s quite easy to see the reason why loft conversion has rapidly grown to become one of the most popular home improvements in the UK. However some homeowners usually shy away from the idea simply by looking at the perceived high cost of carrying out such a project, despite several researches showing that loft conversions offers the best rate of return on initial investment when compared to the other home improvement projects. So exactly how much would it cost to carry out this project?

Just like several other home improvement projects, the cost of a loft conversion varies greatly depending on a wide range of influencing factors. These factors include the size of your home, how old your home is as well as the quality of the fixtures and fittings you want to install. For instance, a high end bathtub alone can cost you thousands of pounds, meanwhile you can also construct a full bathroom suite on just a couple of hundred pounds. However, to give you an idea of the minimum cost of a loft project we’ll look at the most popular types and the minimum cost of each.

✓ Internal Loft Conversion - The most affordable type of loft conversion tends to start from £25,000 and above.

✓ Dormer or L-Shaped Dormer Loft Conversion. These are the most popular types of loft conversion. Dormer price tends to start from £35,000, while the L-shaped dormer starts from £45,000.

✓ Mansard Loft Conversion - This involves replacing the entire side of a sloping roof with a vertical wall and flat roof. It requires a planning permission. The type of loft conversion usually starts from £45,000.

✓ Hip To Gable Loft Conversion - This usually starts from £50,000.

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.

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