Extension builders in Westminster

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.6 (21 reviews)

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Some of our top rated extension builders in Westminster

3746 Results

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Bogdan Chitoiu
No reviews yet
Extension Builder in Westminster
Our client our master
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M&B Civils
No reviews yet
Extension Builder in Westminster
At M&B Civils we provide all aspects of groundworking and landscaping at a high level of quality. We focus to keep the costumer happy with our job and price.
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Future Builds
New on MyBuilder
Extension Builder in Westminster
Future Builds is a trusted, full-service building company dedicated to delivering premium residential transformations. We specialize in constructing high-quality rear extensions that seamlessly expand your living space and add lasting property value. Our expert team handles essential external upgrades, crafting durable, beautifully finished block-paved driveways and secure, stylish perimeter fencing. Inside the home, we provide flawless plastering surfaces and premium flooring installations tailored to your unique aesthetic. We pride ourselves on exceptional craftsmanship, reliable project timelines, and strict adherence to building regulations. From initial groundworks to the final decorative touches, we manage every single phase with complete transparency. Our mission is to turn your property improvement goals into a completely stress-free and rewarding experience. Contact our friendly team today to discuss your upcoming project and bring your home vision to life.
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Construction
Rating: 1 out of 5
Extension Builder in Westminster
We do all construction work Skim ,paint ,wood floor , floor tiles ,krainder Bathroom ,new extension and garage Brick nd block work
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Latest review:
Bricklaying- 11 Mar 2023
The builder came to build a single skim brick wall to the side entrance of my house -: around 120 bricks. He agreed to £300 for labour including inserting a door. Upon arrival, of which he came on foot, he had no tools, no bucket, no drill, no ladder. He had to borrow all of my husbands equipment and sent my husband out for extra materials on two occassions. The lintel he asked us to order was the wrong size, we ordered one that was far too big and wasted more money due to him measuring up the job wrong - again a waste of money. Then, we had to drive him to toolstation to buy a brick cutting tool because of this using our own time and fuel. You would assume a brick layer would have tools if they are doing jobs privately - his colleagues excuse was we are just starting up our private buisness. He then started asking for more money and stormed off leaving all the rubbish behind even though we gave him the £300 as agreed prior to the job. The wall itself is okay but again at one point he refused to build up to the top because of a metal screw apparently impossible to remove, so yet again my husband had to assist with the job and removed the screw. Honestly more hassle than it was worth. Also the door was not fitted so now will need to pay someone else to do the job. I do feel bad for them that do not have any equipment but when you pay money for a job you do expect a certain level of service. I wish them good luck in the future and hope they take this advise on board.
Marcin
No reviews yet
Extension Builder in Westminster
Colour Spraying Ltd is a leading provider of high-quality painting and decorating services in London and the surrounding areas. We specialize in commercial and domestic spray painting, as well as traditional painting and decorating. Our team of experts has years of experience in the industry and is dedicated to delivering exceptional service and results on every project. We use only the highest quality materials and techniques to ensure a flawless finish every time.
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P O'Brien Builders London LTD
No reviews yet
Extension Builder in Westminster
P O’Brien Builders is a trusted, family-run building company with decades of experience delivering high-quality construction services across London. We specialise in home renovations, extensions, loft conversions, and new builds, offering a reliable and professional service from start to finish. Our reputation is built on quality workmanship, attention to detail, and clear communication throughout every project. Whether it’s a small upgrade or a full renovation, we approach every job with the same level of care and commitment, ensuring results that are built to last. As a family business, we take pride in what we do. With the next generation now involved, we combine traditional values with a modern approach to building, giving our clients confidence in both the process and the final result.
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BuilderMan
No reviews yet
Extension Builder in Westminster
My name is Lasha, and I’m proud to be your trusted Tiller Master. With a strong passion for precision and quality, I specialize in delivering expert tiller services to help your land reach its full potential—whether you're preparing soil for planting, landscaping, or just starting a new project. I bring both skill and care to every job, ensuring that your ground is perfectly prepared with efficiency, reliability, and respect for your property. My goal is simple: to make your work easier and results better.
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Ivaan Roofing Solutions Ltd
New on MyBuilder
Extension Builder in Westminster
Best quality roofworks and timberworks in your budget and you will get work guarantee as well. See you at your house job😊
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AMMCASS LIMITED
No reviews yet
Extension Builder in Westminster
General Construction, Plumbing & Heating, Electrical, Roofing, Landscaping. New Build, Extensions, Loft Conversions
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Ground Works
No reviews yet
Extension Builder in Westminster
We undertake all groundwork on site and we have permission from Thames Water to make all connections from site on to sewerage and surface water drains
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Mo Builder
No reviews yet
Extension Builder in Westminster
I am engaged in house extension, loft, interior decoration, kitchen and bathroom installation in the UK. I have a skilled team. Our aim is perfect work, high quality guarantee, free labor maintenance within two years, and extremely low price.
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Advance Heating & Plumbing
Rating: 4.8 out of 5
Extension Builder in Westminster
Hi everyone I am Birendra Singh gas safe register and plumber, I have been doing plumbing and heating for past 5 years, I do gas safe certificate for rented property,and all plumbing work, especialising in property refurbishement and bathroom renovation
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Latest review:
Plumbing- 22 Oct 2026
Birendra was very friendly and trusting. He got to work right away and I am very happy with the new shower unit and tiling he installed for us.
BAL BUILDER DESIGNER LTD
No reviews yet
Extension Builder in Westminster
We are a trusted construction company specializing in high quality new domestic builts . Our focus is on creating homes of highest standards, completed on time, and to meet our clients’ needs , comfort and lifestyles.
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G n r design and build ltd
No reviews yet
Extension Builder in Westminster
we have 14 years experience, All building work undertaken, loft conversion, extension, plaster,plumbing,electrical,painting,decorating,carpentery, joinery, flooring, tiling,roofing, brickwork, ground work
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Dufont Faes Limited
No reviews yet
Extension Builder in Westminster
Dufont Faes Limited is a design and build construction company established in 2004, dedicated to collaborating closely with clients to ensure a seamless process from initial concept and architectural planning through to construction and turnkey completion. Specializing in tailored design and build packages, the company effectively sets client expectations in clear phases. Dufont Faes serves a diverse clientele, including developers, private individuals, and contractors, undertaking a wide range of construction projects such as extensions, refurbishments, flats, and new builds. Please feel free to shortlist us to discuss your project further with our design coordinator.
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Maan builders
New on MyBuilder
Extension Builder in Westminster
We will done good work from inside
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4.6

Top rated Extension Builders

Our Extension Builders in Westminster, are rated 4.6 out of 5 based on 21 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

What types of services are offered by local extension builders in Westminster?

Building an extension is a major milestone for any home. It’s not just about adding extra space, it’s a big step that can transform how you live day to day, opening up new possibilities for comfort, lifestyle, and family needs.

This is why it’s so important to find the right extension builders in Westminster for you. They can help with a variety of tasks and projects, including:

Extending your home with an extra room
Two+ storey extensions
Adding partition walls to create more rooms
Building annexes or external structures

To find the right extension builder near you, simply post your job on MyBuilder. Explain the type of help you’re looking for, and then home extension builders in Westminster who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen Westminster extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in Westminster?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Westminster will charge between £16 and £42 per hour.

Single-storey rear extensions cost between £20,000 and £60,000 depending on size and finish.
The cost of double-storey extensions, which add more space and value, can range from £100,000 to over £170,000.
Larger wrap-around extensions that combine multiple extension types can range from £40,000 to over £120,000.

The cost of an extension will vary depending on your property. For instance, extending in certain areas may require structural adjustments to ensure stability, which can increase your material and labour costs.

To get an accurate price for your home extension, request detailed quotes from several Westminster extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Westminster home extension project is likely to cost.

Find extension builders in Westminster with MyBuilder

Hiring the right extension builder in Westminster with MyBuilder couldn’t be easier. Just follow these simple steps:

Step 1: Post your extension project on MyBuilder

Whether you’re planning a single-storey extension, a loft conversion, or adding a new room, post your job on MyBuilder to find local Westminster extension builders. Once your job is live, we’ll share it with home extension builders in Westminster who can express their interest.

Step 2: Compare different extension builders in Westminster

When you start receiving interest, review profiles of local Westminster extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire Westminster extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Westminster, compare their experience, guarantees, and costs before choosing who to hire.

You’ll also have confidence knowing that every tradesperson on MyBuilder is verified through several checks, including:

ID verification: When a tradesperson joins MyBuilder, we ask for a valid ID, such as a passport, ID card, or eIDAS certificate.
Company verification: For tradespeople operating under a company, we make sure every tradesperson has a registered business.

Did you know? Our continuous monitoring and complaints process ensures that tradespeople who don’t meet our standards are promptly removed from MyBuilder’s platform.

Westminster extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Westminster extension builder before hiring?

Before hiring an extension builder in Westminster or extension building company in Westminster, ask a few key questions to make sure you’re choosing the right professional for your home extension project.

What qualifications and experience do you have as an extension builder in Westminster?

An extension builder in Westminster should have a strong track record with similar projects and relevant building qualifications or trade memberships, such as the Federation of Master Builders (FMB) or TrustMark.

Will my home extension meet all building regulations and planning requirements?

Your Westminster extension builder should ensure the project complies with Building Regulations and, where necessary, handle or assist with planning permissions. Ask how they manage building control inspections and what documentation you’ll receive once the project is complete.

What experience do you have with similar extensions in Westminster?

Ask to see examples of their previous work, or view examples of their work on MyBuilder. Ideally projects similar to yours in scale and design. This helps you assess the Westminster extension builder’s ability to deliver a result that meets your expectations.

How long will the extension take to complete?

Extension project timelines can vary depending on size, complexity, and weather. A typical single-storey extension might take around 8 - 12 weeks. Request a detailed schedule so you know what to expect and when key milestones will be reached.

Do you offer a guarantee for your work? Most Westminster extension builders offer a guarantee or warranty on their work, often between 1 and 10 years depending on the project and materials used. This gives you assurance that any issues will be resolved after completion.

If you still have questions about the professional you are looking to hire, we have a full detailed guide on hiring the right builder here.

FAQ: Common questions about home extensions in Westminster

Can an extension builder in Westminster help with planning permission?

Yes, many extension builders in Westminster can guide you through the planning process. They can help prepare drawings, advise on local requirements, and liaise with your local council to ensure your project meets all necessary regulations.

Can an extension builder in Westminster handle everything from design to construction?

Many Westminster extension builders offer full design-and-build services, managing both the architectural planning and construction stages. Ask your builder whether they can provide a complete package or if you’ll need to hire an architect or designer separately.

Will an extension builder in Westminster help with materials and finishes?

Yes, most extension builders in Westminster can source materials and offer advice on finishes that suit your design and budget. You can also choose to supply certain materials yourself, just make sure this is agreed upon before work starts.