Find a Builder you can trust in Isleworth.

Choose from 274 Builders, all rated by people like you.

Over 410 reviews & an average rating of 4.3/5 stars, you'll find the right pro

Choose and shortlist

Use the shortlist button to select up to 4 tradespeople, enter your project details and press send

or

Keen to get on with the job?

Get up to 4 quotes from local Builders near you

View Shortlist
Verified ProOver 20 Reviews

CRS Contractors

20 review(s)
Offers services in ISLEWORTH
we Are a family run business with over 30 years experience built on reputation Our services include all types of roofing...
Verified Pro

Loft & Build

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

Osolo

0 review(s)
Offers services in ISLEWORTH
Experience the Exceptional We are a reliable building company delivering high-quality workmanship across all aspects of...
Verified Pro

Coastal Prime

0 review(s)
Offers services in ISLEWORTH
Coastal Prime Ltd provides expert home insulation services across the UK, helping homeowners enhance energy efficiency and...
Verified Pro

Go2 Property Services

0 review(s)
Offers services in ISLEWORTH
At Go2 Property Services, we take pride in delivering high-quality workmanship with honest, reliable service. As a family-...

Recent Builder Enquiries

15 Oct

Insulation | External Wall

Isleworth - TW7

Enquiry from: Arvind G

Start Date: Immediate

External wall Insulation.

Post a similar request >

16 Oct

Insulation | Loft / Roof

Isleworth - TW7

Enquiry from: Thurairajasingam R

Start Date: Immediate

External wall insulation Lead

insulate the loft area. no water tank or any other items. ceiling lights will need to be covered to release heat with appropriate caps. are you the property owner: owner of the property property type...

Post a similar request >

16 Oct

Insulation | Cavity Wall

Isleworth - TW7

Enquiry from: Thurairajasingam R

Start Date: Immediate

customer made an enquiry for cavity wall insulation and confirmed on the quotatis site they would like quotes from a builder.mr lives in the isleworth area and would like a call to discuss options.see...

Post a similar request >

03 Apr

Conversion | Loft

Isleworth - TW7

Enquiry from: Kunal R

Start Date: Immediate

homeowner loft conversion please call to appoint

Post a similar request >

31 Mar

Conversion | Loft

Isleworth - TW7

Enquiry from: Kunal R

Start Date: Immediate

homeowner loft conversion please call to appoint

Post a similar request >

04 Oct

Insulation | Cavity Wall

Isleworth - TW7

Enquiry from: Sunil S

Start Date: Immediate

Cavity wall insulation quote

Post a similar request >

24 Nov

Building work | General

Isleworth - TW7

Enquiry from: Mgconstruction G

Start Date: Immediate

need 50sqm price please the area its 7mx7m ground floor extation

Post a similar request >

17 Oct

Conversion | Garage

Isleworth - TW7

Enquiry from: John M

Start Date: Immediate

convert existing rear garden garage to a self contained granny annexe. does local planing allow this? are you the property owner: owner of the property do you have a: double garage what will the spac...

Post a similar request >

01 Sep

New Build | Residential

Isleworth - TW7

Enquiry from: Zen B

Start Date: 1 to 3 months

customer made an online enquiry for new build homes and confirmed on sms and email they would like a call with a builder to discuss prices.please call to arrange an appointment to quote. are you the p...

Post a similar request >

23 Aug

Building Work | Porch

Isleworth - TW7

Enquiry from: Neetu B

Start Date: Immediate

a upvc porch in black or anthracite grey. no brickwork, just glass and upvc. are you the property owner: owner of the property do you have planning permission: yes what material are you looking for: u...

Post a similar request >

26 Oct

Insulation | Cavity Wall

Isleworth - TW7

Enquiry from: Christopher S

Start Date: Immediate

are you the property owner: relative of owner property type: semi detached how many bedrooms do you have: 3-4 property age: 1970-2000 what is your current source of heating for the renewable incentiv...

Post a similar request >

16 Sep

Insulation | External Wall

Isleworth - TW7

Enquiry from: Martin L

Start Date: Immediate

are you the property owner: owner of the property property type: terrace how many bedrooms do you have: 1-2 what is the direction of the roof: south current source of heating: electric other forms: g...

Post a similar request >

14 Sep

Building Work | Porch

Isleworth - TW7

Enquiry from: Sneha S

Start Date: Immediate

Are you the home owner of that property? YES Are you replacing an existing porch or is this a new build? replacement What material do you require, UPVC? Brick and UPVC What colour do you want it to be...

Post a similar request >

09 Sep

Insulation | External Wall

Isleworth - TW7

Enquiry from: Martin L

Start Date: Immediate

are you the property owner: owner of the property property type: terrace how many bedrooms do you have: 1-2 what is the direction of the roof: south current source of heating: electric other forms: g...

Post a similar request >

11 Feb

Building Work | Porch

Isleworth - TW7

Enquiry from: Jeremiah H

Start Date: Immediate

Are you the home owner of that property? yes Are you replacing an existing porch or is this a new build? new build What material do you require, UPVC? UPVC What colour do you want it to be? Rosewood I...

Post a similar request >

03 Feb

Building Work | Porch

Isleworth - TW7

Enquiry from: Jeremiah H

Start Date: Immediate

Are you the home owner of that property? yes Are you replacing an existing porch or is this a new build? new build What material do you require, UPVC? UPVC What colour do you want it to be? Rosewood I...

Post a similar request >

24 Dec

Building Work | Porch

Isleworth - TW7

Enquiry from: Khadijah B

Start Date: Immediate

Front porch Are you the property owner: Owner of the property Do you have planning permission: No What material are you looking for: uPVC What material would you like the roof made from: Clear Roof ...

Post a similar request >

09 Dec

Building Work | Porch

Isleworth - TW7

Enquiry from: Khadijah B

Start Date: Immediate

Front porch Are you the property owner: Owner of the property Do you have planning permission: No What material are you looking for: uPVC What material would you like the roof made from: Clear Roof ...

Post a similar request >

22 Aug

House Extensions

Isleworth - TW7

Enquiry from: Chawla K

Start Date: Immediate

outbuilding size 7m x 7m built with red bricks and red tiles roofing

Post a similar request >

06 Jan

House Extensions

Isleworth - TW7

Enquiry from: Andre S

Start Date: Immediate

Kitchen extension with bathroom Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Single storey extension Do you have planning permission: No Do you have plan...

Post a similar request >

How much do Builder services cost?

How much do Builders cost? Prices for Builders in 2026 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 Isleworth is:

£24,242

Builder job Builder cost in 2026
Garage conversion in Isleworth £9,834-£19,634
Loft conversion in Isleworth £29,688-£64,688
House extensions in Isleworth £32,000-£73,000
Loft insulation in Isleworth £350-£5,345
Upvc or wood porch in Isleworth £2,625-£4,025
Barn conversions in Isleworth £112,500-£172,500
Basement renovation in Isleworth £30,000-£46,000
Bedroom fitting in Isleworth £1,500-£2,300
Bricklayers in Isleworth £300-£460
Cavity wall insulation in Isleworth £325-£5,410
Commercial new builds in Isleworth £105,000-£161,000
Conservatory base in Isleworth £675-£1,035
Building maintenance in Isleworth £1,400-£4,225
Building insurance works in Isleworth £1,400-£4,225
Pebble dashed walls in Isleworth £1,275-£7,100
Plasterboard dry lining in Isleworth £638-£978
Residential new builds in Isleworth £105,000-£161,000
Restoration and refurbishment in Isleworth £37,500-£57,500
Roof insulation in Isleworth £3,875-£10,750
Underpinning in Isleworth £1,400-£4,225
Wall cladding in Isleworth £1,125-£1,725
Wall rendering in Isleworth £3,750-£5,750
Cero insulation in Isleworth £250-£10,000
Insulation scheme (hhrco) in Isleworth £250-£10,000
Demolition in Isleworth £2,440-£3,660
Roof room in Isleworth £15,000-£23,000
Shop refurbishment in Isleworth £3,750-£5,750
Single storey house extension in Isleworth £24,400-£44,934
Soundproofing in Isleworth £575-£25,690
Driveway repair in Isleworth £1,520-£2,280
Garden room in Isleworth £6,400-£9,600
External wall insulation in Isleworth £3,125-£12,500

Related Builder searches in Isleworth

Builder FAQs

how to render a wall?

Wall rendering is basically a process which involves the application of sand, cement or polymer covering to a home’s exterior in such a way that enhances its look while also offering an improved stability. The process is a perfect solution for several exterior concerns mainly due to the support its able to provide. It’s highly beneficial for older homes whose walls may suffer from poor quality because of wear over time, while it’s also greatly advantageous for newer homes as it increases their stability while also enhancing their visual appeal.

Knowing how to apply render is a great skill to have with your home’s upkeep in mind. The project can be done quite easily by any competent and confident DIYer. However if you lack any of those attributes, then we’d recommend you get in touch with a reliable professional for help. In this article, we’ll take you through the wall rendering process.

✓ Prepare the walls. This involves examining the wall, repairing any structural defects as well as stabilizing any movements to prevent the render finish from failing.

✓ External details. This includes the removal of bargeboards, rainwater, soil pipes, alarm boxes and all other external details.

✓ Insulation. In the event whereby external wall insulation is to be fitted, this is the stage to do so.

✓ Developing a foundation for the render to fix to. Apply a render mesh over the insulation, bedded into the first base coat layer of render.

✓ Building up the render.

✓ Render finishes. There are a wide range of colour options as well as various finishes available from very smooth to textured. However, you should note that thin coat render systems are usually designed to be self coloured.

✓ Final finishes. This involves the re-application of the external rainwater, soil pipes and the other external details.

does a single storey extension add value to your house?

Does A Single Storey Extension Add Value To Your House?

When you’re looking to construct a single storey extension or perhaps you’re just searching for means to increase the value of your property, this question always pops up. The short and simple answer to this question is a resounding yes, a single storey extension can go a long way to increase the value of your property. Just like any other home improvement, when done right, adding a little extra living space is one of the top things you can probably think of that’ll provide a cool increase in your property’s value. However, before you rush in you must also take note of some factors so you can be certain a single storey extension is the right option for you. These factors include the quality of the build, complexity of the build, cost of the build versus the value gain, ceiling price in the area, finance costs as well as the inconveniences and stress.

Generally, the average cost of a single storey extension can range from £34,000 to £37,000. For this price, you should get a standard sized rear or side extension which also includes the cost of a kitchen - it’s the most commonly use for a single story extension especially in the UK. So it’s important to know the value they’ll add to your house before deciding to make such an investment.

The value added to your property will depend largely on the quality and size of your single storey extension. The value is usually calculated by estate agents using the number of bedrooms, bathrooms as well as the floor area. Inside London, it’ll typically be priced at £5,000 to £10,000 per square metre, while outside London should be within the range of £900 to £2,000 per square metre.

How much does it cost to renovate a house?

Presenting with its unique sets of components, the price for every house renovation project varies considerably. Though giving a proper price for the house renovation is not possible, you can generally expect to pay anything between £40,000 and £75,000 for renovating a three-bedroom house.

You must list out all the changes needed since renovation comes with several potential costs. This makes it easier for you to calculate the renovation costs and start planning your budget accordingly.

Let us take a look at some of the crucial factors that affect the cost of renovating a house

• Property size

• Property’s condition and age

• Complexity oof the job

• Structural work

• Building extension work

• The quality of materials, fixtures and finishing

• Decoration

• Location

When it comes to renovating a three-bedroom house, the average cost is around £ 57,000. A new gas supply will cost you around £1,500, depending on the route of the supply. There may other additional costs involved if you are looking to do any work to extend the gas supply line.

The cost of rewiring a house is in the region of £5,750. That price will also be dependent on the complexity of the electrical systems in your house and the size. If you are looking at installing a new set of windows, it can cost you up to £6,000, with the average cost being about £4,250. Replastering walls will add another £2500 to the total budget. A new kitchen will set you back around £7,000, on average including the cost of design, materials and installation. Most renovations will need a new bathroom. Installing a new bathroom will cost you around £4,250.

Do bricklayers need a license?

Laying of bricks is a skilful trade which requires the bricklayer to fully understand the process involved in the required building material preparation necessary to construct a foundation as well as to mix the concrete or mortar. As a tradesperson, you also need to fully comprehend how to make use of various materials and master the art of shaping, polishing and cutting it. A typical bricklaying endeavour is expected to include different activities such as preparation of the surface, assembly, installation, reinforcement as well as repair.

As a result, every aspect of the job demands an in depth and extensive knowledge, skills and also experience. To get started in this career path, you can also consider getting a bricklaying license as this will stand you out from the lots from your customer’s point of view. However, to obtain a bricklaying license, you’ll need to have some qualifications which includes an industry experience in the field as well as a trade certificate. These formal and nationally recognized qualifications can be gotten through the Recognition of Prior Learning.

It must, however, be said that several states will require either a building practitioner registration or a bricklaying license to enable you practice as a professional bricklayer in order to ensure that the national standards for quality is always met. In other states, a bricklayer must meet some certain registration requirements or possess concrete licenses. Some will necessitate that you register as a building practitioner to take on certain projects but only to a particular level.

Overall, a bricklaying license will help you meet the building commission’s requirements so as to avoid stern punishments like fines and sanctions. It also allows you to sign legal contracts and agreements, market your services and lots more to steer ahead of competition in the industry.

Will insulation save me money on my energy bills?

This depends on the amount of insulation already present in your property. However, adding insulation has been proven to improve the energy efficiency of your home and decrease your heating bills, this is more obvious in older properties or where single glazing is still in situ.

how to repair a paved driveway?

Generally, a paved driveway is always subjected to regular usage and yours isn’t likely to be an exception, otherwise you won’t be here. Regular usage automatically necessitates regular maintenance of the driveway in order to extend its lifespan, make your property safer and add more value to it. This maintenance will involve a frequent inspection of the paved driveway so as to identify and repair divots, cracks as well as rutting. Paved driveways usually have a lifespan ranging between 15 to 20 years, but this can only be guaranteed when backed by regular maintenance activities. Failure to provide your paved driveway with a regular maintenance will lead to a rapid deterioration within just a couple of years after installation.

The issues commonly faced by paved driveways is usually different based on several factors such as the weather, your location, your property’s sub base as well as some other elements. The ability to identify the problems and solve or repair them on time is key to success while it’s also save you some time and money. In this article we’re going to look at how to go about do-it-yourself tasks that involves minor cracks. More intense damages are advised to be handled only by professionals.

✓ Prepare the area. Clear the debris, weed the plants or vegetation (if any).

✓ Use a strong spray from a garden hose to wash clean the cracks

✓ In the event whereby the crack is deep, simply fill it until it reach about a quarter inch of the surface with sand.

✓ Tamp down the sand to make it more compact.

✓ Apply a patching compound to the surface of the cracked paved driveway.

✓ Leave it for some time to cure.

✓ Once cured, you can then apply your sealant.

Will I need planning permission to convert my loft?

Planning permission is not normally needed for a loft conversion as they are covered by permitted development rights. A conversion company will tell you if you do and help you with this. For more information, see our article about planning permission.

How to convert a basement into living space?

The best way to go about converting a basement depends on its current condition and what you’d like to use it for.

If you’re happy with its size and structure, and just want to turn it into useful storage space, then your project shouldn’t be too complicated. You’ll simply need to make sure it’s damp proof and waterproof – either by fitting tanking or a cavity drain membrane with a sump and pump. You may also need to invest in new flooring, fit basic lighting, and plaster and paint the walls and ceiling.

If you’d like to turn your basement into living space, then you’ll need to think about ventilation, insulation and heating. If this involves creating a kitchen or bathroom, you’ll also need to incorporate plumbing.

If you want to extend your basement, add lightwells, or fit windows and a sunken garden, this makes things much more complicated. You’ll probably want to hire an architect or basement conversion building specialist to help you with the design and planning, and you’ll need a structural engineer to help you ensure your property is sufficiently supported.

Builder help and advice

How it works

Tell us about your Builder project

Answer a few quick questions to help us match you with the right Builder

Get up to 4 free quotes

Receive no-obligation quotes from 4 Builders working in Isleworth.

Pick the right pro for you

Compare prices, customer reviews and services, and hire the right Builder.

Are you a Builder in Isleworth?

View our open Builder jobs near you

Join today
View Shortlist