Extension Builders in Walton On Thames

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (22 reviews)

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Some of our top rated extension builders in Walton On Thames

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Adam Renovations Ltd
Rating: 5 out of 5
Extension Builder in Walton On Thames
Adam Group Ltd is an established residential construction and development company, incorporated in 2010, specialising in high-quality refurbishments, extensions, loft conversions and new build projects across London and the South East. We work with homeowners, investors and local authorities on projects ranging from £150,000 to £3 million, covering everything from full house refurbishments and structural reconfigurations to large-scale extensions, loft conversions and ground-up developments. Since inception, we have successfully delivered over 250 projects, building a strong track record for reliability, quality and consistent delivery. In 2025 alone, the company achieved a turnover of £4.5 million, reflecting both our capacity and the level of projects we undertake. Our team provides an end-to-end service, including planning coordination, structural works and full construction delivery. We are experienced in working alongside architects, engineers and local authorities to ensure projects run smoothly and comply with all regulatory requirements. We maintain a 4.9-star rating on Google, with the majority of our work coming from repeat clients and referrals — a testament to our professional approach, clear communication and attention to detail. If you are planning a refurbishment, extension or new build and want a contractor with a proven track record and the capability to deliver complex residential projects, we would be happy to discuss your requirements.
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Latest review:
Loft Conversion- 5 May 2017
Artjom and his team have done a wonerful job on our loft conversion and house renovation. We are very pleased at the transformation. Although not the cheapest quote we obtained, they were highly professional, kept the noise down and cleaned up after themselves. We also added several other jobs to our initial quote and they undertook these as requested. It is important to keep a record of everything you ask to be done. They worked very fast and were able to complete everything within 2 months - it helped that our house was empty at the time, so they didn't have to deal with us living there at the same time as the works were being carried out. Overall, I would highly recommend Adam Renovations for any building works you need done to your property.
UNDERWAY CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in Walton On Thames
Here at Underway Construction we cover all aspects of building from extensions, conversions and refurbishments to decking, oak framing and hanging doors. Specialising in first and second fix carpentry with over 10 years experience we work alongside architects and engineers to ensure our clients are always provided a professional and reliable service.
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Latest review:
Carpentry- 3 Jul 2023
Henry did a great job installing an internal door for us. Good quality job, kept everything clean and tidy, and smooth communication.
Pearsons Brother Builder and Contractor LTD
No reviews yet
Extension Builder in Walton On Thames
Hi we are builders and contractors and we do all sort of building job like renovation, extension, loft conversions etc
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Tudor Holdings Group Limited
Rating: 5 out of 5
Extension Builder in Walton On Thames
We are a family business with direct employed tradesman. Our work is to the highest of quality, we always go that bit extra for our customers. We have always worked from recommendations, just completed a double storey side, rear ext, loft conversion in Carshalton. We specialise in structural works, refurbs, loft and property extensions. We can offer a full list of references and often, inspection of our work. We always aim to give full breakdown quotations and fixed prices when possible.
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Latest review:
Extensions- 18 Jan 2023
We highly recommend THG building solutions, they have built a double story extension for us, and from start to finish they were always on time, polite and professional on every aspect. Most importantly they delivered what was promised according to the initial budget and on time! No delays or surprises, just honest and reliable service. We have been approached by several neighbors to comment on how beautiful the extension looks and how quickly it was all done! Overall we’re very happy and glad that we chose Charles and his team as our builders.
CJ Carpentry
No reviews yet
Extension Builder in Walton On Thames
Extentions & New builds in Surrey.
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JENKINS Building & Brickwork
No reviews yet
Extension Builder in Walton On Thames
Ive worked as a bricklayer for 10 years with a local building company that takes on all aspects of building work. I started as an apprentice and moved my way up to running big jobs. I specialise in Extensions, Brickwork, new build homes ,driveways, patios, renovation and landscaping
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Blueprint Developments Limited
Rating: 4.2 out of 5
Extension Builder in Walton On Thames
Welcome to Blueprint Builders, where your dream space becomes a reality. Nestled in the heart of London, our team is at the forefront of design and construction innovation. We specialize in transforming spaces into luxurious living experiences, with services that include: - Elegant House Extensions - Meticulous Loft Conversions - Comprehensive Renovations - Bespoke New Builds And a wide spectrum of commercial and domestic building projects designed with your luxury and comfort in mind. At Blueprint Builders, your satisfaction is not just a goal—it's our promise. We're dedicated to bringing smiles to our clients faces through meticulous attention to detail, unparalleled craftsmanship, and a seamless client experience from start to finish. Stay connected with our journey of transformation on Instagram @blueprintbuilder. Follow us for a regular dose of inspiration through updated photos of our latest projects. Dreaming of a space makeover? Don't wait any longer. Contact us today for a complimentary site visit and a personalized quote. Let's make your vision a living, breathing reality.
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Latest review:
Extensions- 19 Aug 2026
We paid for the build finished in Sept. 2025. Our concern is the foundations. The drawings specified about 1.8m depth and anti-heave boards due to clay and trees. The builder had not properly checked the drawings, then charged substantial extra for the depth. We paid, but the boards were not installed, and our photos and videos appear to show much of the foundation at about 1m. A replacement Building Controller declined to proceed without evidence of the boards. The patio, including £1,700 extension, was laid without proper excavation or a mechanically compacted base. Some tiles are loose and render is failing. Other faults include uneven floors and walls, falling plaster, catching doors, cladding gaps, poor electrical fitting, missing vents, a possible leak and unfinished items. Attendance was intermittent—about three weeks over two months—and the work felt rushed around other jobs. Our neighbour witnessed two workers urinating behind the shed. We cannot recommend this company...
Spartex Build and electrical ltd
No reviews yet
Extension Builder in Walton On Thames
Spartex Build are highly skilled and have many years of experience. Most of all we love planning, designing, and building and care about your project. We bring innovation and honesty to every interaction, and our customers love us. We come to work smiling and ready to build your dream. We have a passion for remodeling and are qualified to work on your design and build. For any queries or questions please contact us today
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MIRI UK CONSTRUCTION LTD
No reviews yet
Extension Builder in Walton On Thames
At Miri UK Construction, we combine decades of expertise with a family-run commitment to excellence. Specialising in home extensions, loft conversions, and bespoke refurbishments, we deliver tailored solutions for homeowners and businesses across London and sorrounding areas.
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DayBuild&Design Ltd
No reviews yet
Extension Builder in Walton On Thames
I’ve been in the building industry all my working life and have undertaken many projects from design through to build and completion
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JRS Builders Ltd
No reviews yet
Extension Builder in Walton On Thames
JRS Builders Company is a premier construction company that has been providing top-quality construction services for over a decade. With a team of highly skilled and experienced professionals, we are dedicated to delivering exceptional craftsmanship and outstanding customer service to our clients. Our commitment to excellence has earned us a reputation as a trusted and reliable partner in the construction industry. Whether it's a new home construction, renovation, loft coversion, extension, driveway & patio, bathroom & kitchen refurbishment or remodeling project, our team has the expertise and resources to bring your vision to life. Contact us today to learn more about our services and how we can help you with your next project.
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Bricklayer
Rating: 5 out of 5
Extension Builder in Walton On Thames
Brickwork . New build, extension . Garage
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Latest review:
Bricklaying- 10 Jul 2023
I am very pleased with the work done Excellent clean job Mr Bicol has carried out
Croft Garage Conversions
No reviews yet
Extension Builder in Walton On Thames
Fixed price – what’s included Planning Drawings when required undertaken by ourselves A contract that protects you All works undertaken to Building Regulations and above Always on-site until we complete your conversion High quality of work – ask and see our past Clients conversions No unnecessary deposits £5M insurance Dust Control Management What is different, is that 11 years ago we set out to specifically offer a quality service to all.
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Velox Management Ltd
No reviews yet
Extension Builder in Walton On Thames
Extensions Conversion Porch Driveway Loft conversions Painting decorating Plumbing & electrical
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A&R Construction services
Rating: 5 out of 5
Extension Builder in Walton On Thames
We are a construction and development company based in West London, specialising in high-end residential refurbishments With over 15 years of experience, We take pride in our building works, so when you choose A&R Construction for your project, you will work directly with us and we’ll ensure to get you the best rates possible from suppliers, including: kitchens, tiles, wooden flooring, bi-fold doors, and sanitary ware.
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Latest review:
Roofing (Pitched)- 5 Apr 2024
I recently had the pleasure of working with the A&R company for roof repairs and transformation, and I must say, I couldn't be more impressed. Not only did they do an exceptional job with the repairs and transformation of my roof, but Amar and Jatinder went above and beyond by assisting with other minor fixes. Their friendly demeanor and professionalism made the entire process smooth and stress-free. I highly recommend A&R for their top-notch service and exemplary team members.
Jass
Rating: 5 out of 5
Extension Builder in Walton On Thames
We do all kind of staircase with fill finishing, Roofs Structure, Roof Tiles , installing doors , Flooring and other construction work.
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Latest review:
Carpentry- 1 Jul 2026
Jass was quick to respond and gave a good price for fabricating a staircase on site. Jass made sure I was happy before leaving and readjusted one of the steps which was creaking.

4.1

Top rated Extension Builders

Our Extension Builders in Walton On Thames, are rated 4.1 out of 5 based on 22 reviews from customers like you.

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What types of services are offered by local extension builders in Walton On Thames?

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 Walton On Thames 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 Walton On Thames who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Walton On Thames?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Walton On Thames 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 Walton On Thames extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Walton On Thames home extension project is likely to cost.

Find extension builders in Walton On Thames with MyBuilder

Hiring the right extension builder in Walton On Thames 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 Walton On Thames extension builders. Once your job is live, we’ll share it with home extension builders in Walton On Thames who can express their interest.

Step 2: Compare different extension builders in Walton On Thames

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

Step 3: Hire Walton On Thames extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Walton On Thames, 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.

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

What to ask a Walton On Thames extension builder before hiring?

Before hiring an extension builder in Walton On Thames or extension building company in Walton On Thames, 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 Walton On Thames?

An extension builder in Walton On Thames 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 Walton On Thames 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 Walton On Thames?

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 Walton On Thames 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 Walton On Thames 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 Walton On Thames

Can an extension builder in Walton On Thames help with planning permission?

Yes, many extension builders in Walton On Thames 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 Walton On Thames handle everything from design to construction?

Many Walton On Thames 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 Walton On Thames help with materials and finishes?

Yes, most extension builders in Walton On Thames 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.