Extension builders in Ashtead

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (16 reviews)

Easily find verified Ashtead Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Ashtead.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Ashtead

2297 Results

Sort by:

Master John
Rating: 5 out of 5
Extension Builder in Ashtead
At Master John, we redefine excellence in residential building and renovation. With an impeccable reputation forged on our commitment to unparalleled quality, we seamlessly blend traditional craftsmanship with cutting-edge methods, ensuring every project reflects our mantra: 'Right First Time.'
Get in touch
Latest review:
Carpentry- 20 Feb 2025
Tudor was really fantastic. Very responsive to messages and was just a really lovely guy when he was here. Very hardworking & considerate. Would recommend to a friend if they needed a carpenter
AT Line Construction
Rating: 5 out of 5
Extension Builder in Ashtead
We are a limited company with many years experinece at construction and usually undertake medium to large size projects like refurbishment, bathroom restoration, loft conversation, extensions and general refurbishment. With high end quality.
Get in touch
Latest review:
Extensions- 17 Nov 2022
AT Line Construction built our extension and worked on the remodel of the inside of our flat. We are extremely happy with the results. Adison and his team are very professional and friendly. They were able to deal with any changes and problems that came up quickly and sensitively. Part of the build was to renovate a small disused swimming pool - this was a tricky job, and they were able to help us creat an amazing pool. We would definitely recommend them.
Mayfair Build Ltd
Rating: 5 out of 5
Extension Builder in Ashtead
With over 30 years experience within the building, Landscape and civil engineering industry. Mayfair Build Ltd has a wealth of knowledge to turn your project from a dream to reality. We cover the Surrey Area. And feel free to google for more reviews.
Get in touch
Latest review:
Groundwork & Foundations- 4 Oct 2022
Dean came the following day that the job was placed to see the site and estimate - the quote came soon after. Work was done on time and kept mess to a minimum. I would use Mayfair Build again.
LJS construction
Rating: 5 out of 5
Extension Builder in Ashtead
Extensions, lofts, kitchens, refurbishment, driveways and patios
Get in touch
Latest review:
Landscaping- 6 Jun 2023
We are so happy with our new patio and garden. They were on time, very helpful and did a fantastic job, for a very competitive price. We will definitely use LJS for any future projects.
Infinity Projects Group Ltd
Rating: 5 out of 5
Extension Builder in Ashtead
Infinity Projects Group stands as a prestigious and award-winning construction consultancy, boasting a rich legacy of excellence in delivering top-tier Project Management, Construction Management, Design and Build, and Refurbishment Services since its establishment in 2016. As a privileged client of Infinity Projects Group, you are guaranteed a service that is meticulously tailored to meet the intricate demands and nuances of your project. All wall is certified, and coming with 1 year free of charge warranty. We don't cut the corners and our Plumber doesn't perform Electrical job ! Please look at our website . -Design and Build -Project Management -Principle contractor -New Build -Refurbishment -Loft Conversion -Garage conversion -Kitchen extension and refurbishment -Architecture drawings and permissions -Building control -Gas safe -Niciec Approved contractor
Get in touch
Latest review:
Electrical- 8 Apr 2021
Val was responsive and prompt, and performed EICR as needed.
FM Class Brickwork LTD
Rating: 5 out of 5
Extension Builder in Ashtead
FM Class Brickwork specialises in all aspects of brickwork and blockwork. With over 18 years of experience in the building industry , we are always ready to take on new projects and deliver the best results to our customers in a timely manner and without delay. We specialise in : Brickwork and blockwork extensions Brickwork repairs/restoration Structural repairs Brickwork design/feature Pointing/repointing Garden walls
Get in touch
Latest review:
Bricklaying- 10 Aug 2024
Florin was great from initial conversation to the execution of the work to a high standard. Pleasure to deal with and knows his stuff, will definitely recommend. Thanks Florin
BJ Bricks & Blockwork
Rating: 5 out of 5
Extension Builder in Ashtead
B&J bricks & Blockwork Quality work built with love & care by experts. We undertake big & small jobs, Treating each client as if they were part of our family. We guarantee our work and take away all the stress. Professional, Clean & Tidy . We work to deadlines that suit the client, With the desired finish every time. We also do Roofing, exterior Rendering & Landscape gardening we also Provide scaffold alongside general building work when necessary for our jobs . Thank you for choosing us & we look forward to working with you . Best wishes B&J bricks & Blockwork
Get in touch
Latest review:
The guys did a great job on the wall repair
Rosca Construction LTD
Rating: 5 out of 5
Extension Builder in Ashtead
Hi my name is Constantin and I do building over 10 years my type of work is general building
Get in touch
Latest review:
Extensions- 6 Sep 2022
Constantin was fab. Great communication and work. This was a tenanted house so he had to juggle arrangements with the tenants whilst communicating with me and sending pictures. I will be asking him to do more work soon.
Rc builders
Rating: 5 out of 5
Extension Builder in Ashtead
Family run company with 20+ years experience using time served and fully qualified tradesmen Finishing to a high standard regardless of your budget. All work fully guaranteed
Get in touch
Latest review:
Restoration & Refurbishment- 30 Apr 2026
Job was completed quickly and to a great standard. Reasonably priced and we would definatley use them ahain
QUOTRIX CONTRACTORS & ENGINEERS LTD
Rating: 5 out of 5
Extension Builder in Ashtead
1. Design and Planning; 2. Development of residential & commercial buildings; 3. Refurbishment & Renovation of domestic building projects, and 4. Any other types of building works including extensions and conversions.
Get in touch
Latest review:
Kitchen Fitting- 4 Aug 2020
Quotrix contractors did a fantastic job of kitchen refurbishment. Great friendly service by all of the team, from the sales through to installation. Brilliant job, all round!
Kingston Surrey Construction Ltd
Rating: 5 out of 5
Extension Builder in Ashtead
We are a construction company with over 25 years experience. We Have worked on major projects including extensions, loft conversion and refurbishments. Including smaller projects, new bathroom and kitchens.
Get in touch
Latest review:
Restoration & Refurbishment- 21 Apr 2024
Got my cloakroom re-done. They r friendly, professional, attention to detail, with clearly tens of years’ experiences. Reasonable rate as well.
Duo Builders Ltd
Rating: 5 out of 5
Extension Builder in Ashtead
Duo Builders offers customers a high end service for all domestic building works. Our highly qualified team undertake Design, Build and Maintenance works on residential property in London and the surrounding area. Our wide range of services allows our clients access to an efficient quality service.
Get in touch
Latest review:
Conversions - General- 26 Dec 2021
Overall, Duo Builders is good and I would recommend for any build work. Pros: 1. Committed to work and informed when not coming on any particular day 2. Had manpower allowing to add more hands if needed 3. Reliable people and nice staff / Team of young members 4. Does and completes work that was planned and agreed Cons: 1. Job took a lot of time than estimated as it was not thoroughly thought how the earth would be moved 2. Very hard to hold off the owner, its important for the client to be stay connected and informed. 3. Bit messy and site gets put of shape than original
RTK Carpentry
Rating: 5 out of 5
Extension Builder in Ashtead
We will see the job from start to finish with a price that's fair. I have worked within care homes for the last two years hanging fire doors with certification from BRE Academy on fire door fitting. I have been in the trade for 10 years. I am based in Surrey and can cover South London.
Get in touch
Latest review:
Carpentry- 27 Oct 2021
Ryan is absolutely fantastic. Whilst new to mybuilder, it doesn't mean he's new to the world of carpentry. His work ethic is second to none and quality of work meticulous! We absolutely love our new flooring and it's been put down so incredibly well. He was also able to advise us on lots of different future jobs and offer quotes for these too. All very reasonable considering the quality this guy's works to. Hands down worth that little bit more to employ Ryan, you won't be disappointed one bit!
Nero Building Work LTD
Rating: 5 out of 5
Extension Builder in Ashtead
Our team is highly professional within the building trade.We have the ability to manage projects of all sizes and complexities. We are very dedicated to each project ensuring that it is completed at the highest standards within the timescale and the budget allocated. We are specialised: •new build/ houses • Extensions • Refurbishments • Loft Conversions
Get in touch
Latest review:
Extensions- 1 Mar 2021
Work completed to the highest quality. Real eye for detail and very reliable. Best decision I took was to work with Nezir on this project. Completed in a timely manner and perfect communication throughout. Fairly priced and knowledgeable in all aspects of renovation and construction, adding real value to my property.
AQ Renovations
Rating: 5 out of 5
Extension Builder in Ashtead
Are you looking for reliable and professional builder? Then AQ Renovations is the right choice for you! We can do anything from the foundation of the extension to the top roof of the loft conversion. AQ Renovations team has fostered all of the skills you need for household repairs and improvements.
Get in touch
Latest review:
Painting & Decorating- 26 Mar 2025
Ardi and his team did an excellent job on my new bought flat. The whole work includes stripping down the wallpaper, plastering, painting walls, ceilings and doors. The work was done in time with nice quality. Many thanks to Ardi and his team! :)
Sirius Construction Surrey Ltd
Rating: 5 out of 5
Extension Builder in Ashtead
We are professional builders with 20 years of work experience. We do extensions, loft conversions, new houses from foundation to the final touches. You get quality and quantity at the same time as we are perfectionist in our work and also hard worker. We have many reference work upon request.
Get in touch
Latest review:
Extensions- 15 Jul 2019
Norbert and his team have transformed our house to the most amazing standard, we would recommend them to all our friends and family. The work schedule was managed so well, with minimal disruption to us with two young boys. We had a loft conversion, main bathroom renovation, utility room, downstairs toilet and a 4 meter kitchen extension. We stayed in the house whilst the work was being completed and Norbert and his team fitted in so well, it actually feels weird not seeing them in the house. They are such a lovely bunch of people. We are over the moon… on time, on budget and finished to a high standard. If we ever undertake renovation work again, Norbert and his team would be our 1st call!

4.4

Top rated Extension Builders

Our Extension Builders in Ashtead, are rated 4.4 out of 5 based on 16 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 Ashtead?

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 Ashtead 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 Ashtead who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Ashtead?

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

Find extension builders in Ashtead with MyBuilder

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

Step 2: Compare different extension builders in Ashtead

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

Step 3: Hire Ashtead extension builders with confidence

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

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

What to ask a Ashtead extension builder before hiring?

Before hiring an extension builder in Ashtead or extension building company in Ashtead, 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 Ashtead?

An extension builder in Ashtead 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 Ashtead 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 Ashtead?

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 Ashtead 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 Ashtead 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 Ashtead

Can an extension builder in Ashtead help with planning permission?

Yes, many extension builders in Ashtead 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 Ashtead handle everything from design to construction?

Many Ashtead 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 Ashtead help with materials and finishes?

Yes, most extension builders in Ashtead 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.