Extension Builders in Westminster

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in Westminster

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NEWVIBEHOMEIMPROVEMENTS
No reviews yet
Extension Builder in Westminster
"We are a comprehensive home transformation company specializing in high-quality extensions, full property refurbishments, kitchens, and more. While we handle every aspect of your build from the ground up, we are true specialists in luxury bathroom fitting and wet room installations.
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Hylton Chimneys Ltd
No reviews yet
Extension Builder in Westminster
We are a loft and extension specialist.
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HB building services
Rating: 5 out of 5
Extension Builder in Westminster
Hi and welcome to HB groundwork & construction . We are a small building company local to Tunbridge Wells Kent, Specialising in all types of building and landscaping projects such as all types of brick work, Extensions, house renovations, drive ways, patios, landscaping, garden revamps, drainage and much more. Our aim is to make sure each of our customers are Satisfied with every project we complete. Our prices are competitive and we will not be beaten on price.
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Latest review:
Driveways (Paved & Loose)- 26 Jul 2021
Henry and co were friendly and efficient and we’ve already had lots of positive comments about our new drive. In addition they got rave reviews on their tidiness and the quality of the finish from a very hard to please neighbour. Already recommended to several people. Thanks, Henry!
Albion Groundworkers
Rating: 4.8 out of 5
Extension Builder in Westminster
I would like to take this opportunity to introduce Albion Groundworkers Ltd, an experienced and trusted groundworks company with over 20 years in the industry. We provide a complete range of services to home developers, construction companies, and private clients, including: Demolition Foundations Substructures Drainage Systems Utilities (Trenching and Ducting) Road Construction Block & Brickwork Soft Landscaping – Turfing and Planting Hard Landscaping – Driveways (Tarmac, Block Paving, Resin, Concrete, Gravel) Fencing At Albion Groundworkers, we take pride in delivering high-quality workmanship, reliability, and attention to detail on every project. With a full fleet of modern equipment and a highly skilled team, we ensure efficiency and timely completion across all our work. We would be delighted to discuss how we can support your upcoming projects and demonstrate the quality and professionalism our clients value us for. If you have any projects you’d like us to quote for, we’d be more than happy to assist.
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Latest review:
Landscaping- 16 May 2024
We hired Albion Groundworkers to take on our garden and driveway project. They are a very hardworking bunch of guys who do not slack when it comes to quality! They arrived everyday on time and worked extra to make sure the job was completed in the estimated timeframe. Armir was my main point of contact and he was always there to answer questions and provide advice where necessary. They were very mindful of my neighbours and ensured the site was left clean and tidy before leaving. It is a family run business and they take a lot of pride in their work. I would highly recommend anyone to use them and I have already had so many compliments from family and friends!
ERW Building Services
Rating: 5 out of 5
Extension Builder in Westminster
General builder covering all aspects of exterior and interior works. This includes groundworks from footings, drainage, paving, to conversions and interior maintenance and decoration. With over 20 years of proven experience using quality materials and tradesmen. My aim is to work with my customers to provide a service that fits to their plan and budgets giving sound advice on what would work best to give a lasting finish.
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Latest review:
Conversions - General- 17 Mar 2019
Elliott has to be the best decorator/ builder I have used. On time with works and no lies or excuses!!! After posting my job he call me within 30 minutes to arrange a visit. This was the following day. When Elliott arrived he understood my requirements and saw my ideas and advised when he thought from his experience, would work better. He was very polite and professional. I needed the work done within 2 weeks due to carpet being laid. He completed the works within 7 working days. The works involved, Removing a wall, Removing all woodwork, Boxing out pipes, Plastering, New coving, New skirting, New architrave 2 doors, Building an under stair shelving unit, Moving a socket, sky cables, internet box, Removing radiator, Painting of all new plastered walls ceiling and woodwork to my chosen colours. I was even able to get him to squeeze in some additional works. This was creating shelves in my airing cupboard upstairs and boxing out pipes in my hallway. Elliott’s communication throughout the works was great. Even if he was unable to get round my house he would let me know at his earliest opportunity. Very very tidy during works. I have a 3 year old and Elliott made sure it was left safe every night. The finished works are to a high standard and he even popped back to do a bit off snagging on a Saturday morning. When I say snagging it was a few paint marks, re-laying my old carpet and dropping my keys off. I will be using Elliott in the future.
Oakview Developments
No reviews yet
Extension Builder in Westminster
We have over thirty years experience in the building trade on a wide range of projects consisting of: Extensions Loft conversions Landscaping Carpentry Brickwork Kitchens Bathrooms
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Adamantium roofing & brickwork contractors
No reviews yet
Extension Builder in Westminster
First impressions matter, so here’s a little about me and what I bring to the table 👇 With over 10 years of hands-on experience in the building industry, I take real pride in delivering quality work that stands the test of time. Whether it’s a small repair or a full project, I approach every job with the same level of care, attention, and professionalism. For me, it’s not just about getting the job done — it’s about doing it right. I believe in being reliable, honest, and easy to work with. Clear communication, respect for your home, and keeping things clean and organised are just as important as the build itself. Customer satisfaction always comes first. I listen, I care, and I make sure you’re happy every step of the way. If you’re looking for someone trustworthy, skilled, and committed to high standards, feel free to get in touch — I’m always happy to discuss your project and help where I can. 🔨 Quality work🤝 Honest service🏡 Respect for your home Let’s build something great.
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Lee Building Contractors Ltd
No reviews yet
Extension Builder in Westminster
Extensions,Loft conversions, renovations, New Builds , refurbishments , Project Management, Steel installations, Roofing work,commercial works,contract projects
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NV Constructions LTD
No reviews yet
Extension Builder in Westminster
New build house , extensions ,renovation, loft convention all Bulding work undertaken
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LucianCorpaci
No reviews yet
Extension Builder in Westminster
We renovate, decorate and repurpose buildings to make sure they fully meet your needs. By regularly working with homeowners and landlords, we ensure your property renovation is completed to the high standards you’d expect and is exactly what you need it to be. Having worked in renovations for many years, we understand that it’s not about the amount of work you require. It’s about taking ownership of the space, making it yours and building it up around your requirements and expectations, so you can do exactly what you want with the building. We can redevelop and remodel a space so you can start afresh, or provide a more cosmetic refurb to give your property a new look. Our flexible approach allows us to take on refurbishment projects of all sizes and do every building justice. Regards
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Fennel Carpentry and Construction
New on MyBuilder
Extension Builder in Westminster
Hi, I’m George, founder of Fennel Carpentry and Construction. Carpentry is my trade, but my experience goes far beyond that. Over the past three years I’ve worked on new builds, renovations and extensions, developing a strong understanding of multiple trades to deliver high-quality work from start to finish. Before that, I specialised in carpentry and handyman services, taking on everything from hanging doors and fitting door linings to the smaller jobs that make a big difference. I also have over two years’ landscaping experience, which I still enjoy today, and having a plasterer as a dad means I’ve picked up solid plastering skills too. I’m proud to be known for being reliable, honest, hardworking and easy to communicate with. I take pride in every job, no matter the size, and always aim to leave my customers happy. Most of my work is local, but I’m always happy to travel for the right project. If you’re looking for a trusted tradesman, I’d be delighted to help. George Fennel Carpentry and Construction
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Eota ltd
No reviews yet
Extension Builder in Westminster
Eota Ltd is a start up Electrical and Renewable energy installation company with a huge difference. Our mission is to utilise 50% of trading profits to help reduce the cost of renewable installs, tackle the cost of living and reduce enviromental damage. We are a small family run company who are just starting our journey and we want to work with you and for you. Help us on our mission!
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Trojanconstruction
No reviews yet
Extension Builder in Westminster
Trojanconstruction is a family run firm building extensions and undertakeing everything from garde ing work 2 full house refurbishments i have a very skilled and experianced team at your service
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Ktech Group LTD
Rating: 5 out of 5
Extension Builder in Westminster
We are a construction company that specialises in compliance works and social housing. We work with the best engineers to ensure our projects are carried out successfully with the best appraisal possible. Contact us today to discuss your project and set up a consultation. Our service areas include London, Kent and Southern East counties.
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Latest review:
Carpentry- 7 Aug 2025
Ash and his team from Ktech did a great job installing the flitch beam to structural spec. The job required real effort, coordination and attention to detail and they delivered. Professional, reliable and easy to work with. I’d strongly recommend them.
Cjm building specialists ltd
No reviews yet
Extension Builder in Westminster
We are a very experienced team of tradesmen offering all aspects of construction from new builds to refurbishment and extensions. We take on all sizes of jobs from a bathroom refurb or kitchen refurb all the way to multiple new builds. One thing we strive for is quality and customer relationship. We believe in using skilled tradesmen as that is what maintains a high quality of workmanship and leads to a happy client and high quality finished job.
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TZ Construction Ltd
Rating: 4.8 out of 5
Extension Builder in Westminster
Family business run by father and son since 2018. We are specialized in structural alterations including extensions and conversions, from foundation to a key turn. With plenty of projects finished over the years, we are confident to provide excellent quality, delivering your project on time. You can find us every year on construction exhibitions in Bicester and Farnborough. Sincerely Thomas & Ziggy
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Latest review:
Carpentry- 1 Feb 2025
Very happy with the work carried out. Very pleasant experience. Tomaz was very friendly and completed the job in a timely manner.

4.1

Top rated Extension Builders

Our Extension Builders in Westminster, are rated 4.1 out of 5 based on 18 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.