Extension Builders in Dorking

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (16 reviews)

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Some of our top rated extension builders in Dorking

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JMD Property Solutions
Rating: 5 out of 5
Extension Builder in Dorking
Hi we are a family run business. We have over 35 years of building experience. We are able to offer a full turnkey project solution for our clients. From design and planning to site setup, through to main build and finishings, then to handover day with your dream home complete. All aspects of home improvement and new design&build projects undertaken. Extensions, loft conversions, groundwork’s and renovation/refurbishment are the main areas of work we cover.
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Latest review:
Extensions- 22 Dec 2025
We contracted JMD for a detached house project to demolish an old 1970s extension & rebuild larger 70sqm extension, an outside terrace patio and remodel some of our internal ground floor setup. Project started in Feb2025 and JMD made super quick progress on the build during the dry spring months. We had to pause JMD due to our timelines which they were fine with and finally completed end-to-end by Oct2025. What makes JMD standout for us was their team of employees – they don’t use too many contractors, most of their team are employed by JMD and are a loyal hardworking professional squad. Liam, Mark, Chip, Ross, Zac and the rest – all top class! We had some additional projects and requirements mid-project, JMD provided good pricing along the way which were all totally fair and priced as incremental add-ons. YES – there are always bits that could be better, but JMD did an excellent job on the whole. Site left clean, tidy, complete and all post project snags dealt with! THANKS JMD!
Sam Day
Rating: 5 out of 5
Extension Builder in Dorking
General construction works, electrical works, waste clearance and any other jobs that need completing give me a call
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Latest review:
Handyman- 20 Mar 2022
What a great guy, done an amazing job with the climbing frame. Thank you so much Samuel. Definitely hiring him again. Best Tiago
Khl construction ltd
Rating: 5 out of 5
Extension Builder in Dorking
Reliable & trustworthy, expert building company with 30+ years experience. Always competitively priced but our focus is on quality and service rather than cutting corners to cut prices. We'll take the hassle out of your project and make sure you get the results you're dreaming of.
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Latest review:
Extensions- 1 Apr 2021
Best builders we have had! Kieron was extremely reliable, and very hard working. The work was completed to a very high standard, we are 100% happy with it. I would recommend to all my family and friends without hesitation. We will certainly be using LHL for future projects!
BRK Developments
Rating: 5 out of 5
Extension Builder in Dorking
BRK Developments, a premier brickwork landscaping and building company with over 15 years of experience, transforms outdoor spaces in Surrey, serving Cranleigh, Guildford, Woking, Weybridge, Esher, and Cobham. Our NVQ Level 3 and City & Guilds-certified bricklayers, backed by multiple industry awards and full public liability and professional indemnity insurance, specialize in bespoke patios, driveways, garden walls, retaining structures, and residential extensions. We deliver high-quality, tailored brickwork and landscaping that enhances your property’s beauty and value. Don’t miss out! contact BRK Developments now to secure your project before our limited slots fill up!
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Langley Groundwork Ltd
Rating: 5 out of 5
Extension Builder in Dorking
Welcome to Langley Groundworks Ltd I’m Rich Langley, founder of Langley Groundworks Ltd, and we’re proud to offer a reliable, experienced service in all aspects of groundworks, foundations, drainage, demolition, and site clearance. With years of hands-on expertise and a strong reputation for quality, we ensure every project—big or small—is completed safely, efficiently, and to the highest standards. In addition to our core groundworks services, we also manage full property refurbishments and alterations, offering a complete start-to-finish solution tailored to your needs. Whether you’re preparing a new build site, upgrading existing infrastructure, or transforming a property, Langley Groundworks Ltd brings the right skills, equipment, and attitude to get the job done properly. We’re here to make the process as straightforward and stress-free as possible—reliable, professional, and ready to deliver.
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Latest review:
Groundwork & Foundations- 3 Aug 2025
Richard was incredible- excellent at his craft, very precise and very hard working. He knows his concrete! We couldn’t recommend him enough!
Koli’s Construction Limited
Rating: 4.9 out of 5
Extension Builder in Dorking
Bricklaying Roofing Plastering Fencing Painting Driveways Extensions
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Latest review:
Plastering- 27 Dec 2024
Koli done a decent job plastering
C DINGLE BUILDERS AND DECORATORS
Rating: 5 out of 5
Extension Builder in Dorking
C Dingle builders & Decorators work all over surrey and we have an excellent rating on many websites. We can take on any job from Loft conversion, Extensions, Complete house Refurbishment, kitchen refurbishment, Bathrooms, Driveway and Decorating. We do one job at a time so each client is very happy with our work. We are fully insured. Try us you will not be disappointed.
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Latest review:
Restoration & Refurbishment- 29 Oct 2023
Carl replied promptly to my ad. He has actually been the only one who was ready to start the renovation immediately. His project management skills are great, he knows what he does, and he is great at working with the customer to find the best solutions to all kinds of problems and difficulties that could arise when refurbishing an old flat like mine. 10/10! Thanks Carl!
Reicon Ltd
Rating: 5 out of 5
Extension Builder in Dorking
Construction experts serving Surrey and beyond.
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Latest review:
Tom Reilly recently fitted a kitchen for me and I am very pleased with the result. The work he has done cannot be faulted. Tom was reliable and came when he said he would. He was efficient and very clean and tidy. I would highly recommend Tom and I am, in fact, hiring him again to do further work for me.
Aspect construction
Rating: 5 out of 5
Extension Builder in Dorking
We are general builders who specialise in extensions, loft conversions, refurbishments and all types of building work from start to finish fully project managed throughout. We are a family run business with combined experience of over 60 years. Fully insured
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Latest review:
Extensions- 30 Oct 2021
Excellent professional service and old school craftsmanship. Aspect helped all the way through the process, and any issues were picked up and dealt with promptly. The build was was completed on time and on budget, with minimal disruption and the finish was excellent. I would highly recommend Aspect construction for your project.
Mole Valley Builders LTD
No reviews yet
Extension Builder in Dorking
Mole Valley Builders are independent building contractors based in Dorking, Surrey. We are a friendly, local building company, run by a Dorking resident who knows the Surrey area well, allowing us to go the extra mile to maintain a loyal client base. We specialise in extensions and offer the full package from conception to completion.
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Buildstar limited
Rating: 5 out of 5
Extension Builder in Dorking
Buildstar Ltd, we provide high quality services to all of our customers. We do extensions, refurbishments, conversions, landscaping, kitchen and bathrooms. Please get in touch and we will do the rest
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Latest review:
Conversions - General- 2 Apr 2025
Rio was very professional and talked us through everything as it happened. Would definitely recommend. No extra charges on top of the original quote, took a few days longer than initially quoted but mainly down to the plaster being slow to dry. Thanks Rio.
Gaffney Builds
Rating: 5 out of 5
Extension Builder in Dorking
I am a sole trader with a carpentry background who takes pride in their work and ultimately, the finished product.
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Latest review:
Carpentry- 8 Oct 2017
Jack done an excellent job on hanging my door. Good customer and takes great pride in his work. Jack was very helpful and gave me good advice due to his wide range of experience and knowledge on new builds. He helped me pick out the correct hinges, latches and doors. I am very grateful to have Jack work for me and would recommend him to others
onebuild group ltd
No reviews yet
Extension Builder in Dorking
Onebuild are a specialist architecture and building company. Whether you’re building from the ground up, renovating a cherished space, or reimagining your property, our team of skilled builders and visionary architects are dedicated to turning your ideas into stunning, functional realities. From concept to completion, we ensure every detail is meticulously crafted to meet your exact specifications, delivering exceptional results that stand the test of time. Discover the perfect blend of creativity and craftsmanship with ONEbuild where your vision becomes our mission
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tops developments
Rating: 4.9 out of 5
Extension Builder in Dorking
We undertake all type off building work, plumbing, heating, gas works,kitchens, bathrooms, refurbishment, extension, and small jobs. With over 8 years experience in industry, work warranties, qualified professionals. Our subcontractors and employees are professionals with experience. We are looking forward to hear from you. Thank you.
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Latest review:
Gas Work- 23 Dec 2025
Friendly, professional and fair with good communication. Would recommend
Jarvis Building Services
Rating: 5 out of 5
Extension Builder in Dorking
We are a family run business with over 40 years experience in the building industry. We take enormous pride in our workmanship and the quality of the finished product. We are also very trustworthy and reliable and at lease 50% of our work is word of mouth or repeat custom and this is something we are very proud of.
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Latest review:
Restoration & Refurbishment- 14 Oct 2025
Peter and team did a brilliant job refurbishing our kitchen. He organised building control sign off for knocking down an internal wall. He sourced new glazing for us and designed and built a custom bench seat. He assisted us with ordering the right units for our kitchen. He was great at problem solving along the way e.g. cutting cornice to fit tricky corners. The team were courteous and left our house tidy at the end of each day.
Carter's Brickwork
Rating: 5 out of 5
Extension Builder in Dorking
Bricklayers with extensive knowledge in the trade, delivering the highest quality and customer satisfaction.
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Latest review:
Excellent service, prompt to answer request for work required and after sending photos came back with a price and time when work could be completed (I needed the job completed within 48hrs) Very polite and friendly, called on route to let me know approximate arrival time

3.9

Top rated Extension Builders

Our Extension Builders in Dorking, are rated 3.9 out of 5 based on 16 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Dorking?

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

Find extension builders in Dorking with MyBuilder

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

Step 2: Compare different extension builders in Dorking

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

Step 3: Hire Dorking extension builders with confidence

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

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

What to ask a Dorking extension builder before hiring?

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

An extension builder in Dorking 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 Dorking 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 Dorking?

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 Dorking 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 Dorking 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 Dorking

Can an extension builder in Dorking help with planning permission?

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

Many Dorking 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 Dorking help with materials and finishes?

Yes, most extension builders in Dorking 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.