Extension Builders in Dorking, South East England

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (15 reviews)

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Some of our top rated extension builders in Dorking, South East England

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Nico Spurrier
Rating: 5 out of 5
Extension Builder in Dorking, South East England
GreenBuild began with owner Nico Spurrier making a strong commitment to offer excellent service, the highest quality in design and building work and great value for customers across the Sussex area and beyond. This approach is still very much at the heart of the business, earning GreenBuild a reputation as dedicated, professional, trusted builders providing superior, cost effective and efficient project management. We pride ourselves on being a building company the works only to the highest standard, delivering exceptional results, on time and within budget. As we look back on the challenges posed by the COVID-19 pandemic, we are proud to say that we have emerged stronger and more resilient. Our dedication to health and safety ensured that we could continue serving our clients while protecting the well-being of our team. Now, more than ever, we are committed to delivering excellence and look forward to many years of satisfied customers ahead. Based in Horsham, West Sussex, we are local builders with a wealth of experience working on projects throughout the region. From renovations and extensions through to full end-to-end design and build projects, we have the expertise and understanding to support our clients with everything from planning through to completion.
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Latest review:
Extensions- 5 Jul 2018
Nico and the Greenbuild team are polite, professional, clean and tidy, hard and fast working and were a pleasure to work with. Having completed several renovation projects and new builds, I can safely say that this team was the best by a long shot. Highly recommended. I hope they are not to busy to start my next project!
Nsd Carpentry & Building ltd
Rating: 5 out of 5
Extension Builder in Dorking, South East England
NSD Carpentry & Building Ltd is a family run business with over fifteen years’ experience in the industry. We specialise in loft builds, extensions, refurbishments as well as general carpentry and pride ourselves on having high standards. With our attention to detail, ability to come up with creative solutions to problems and cleanliness on site, we’ll be providing you with quality workmanship and customer care at competitive prices.
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Latest review:
Extensions- 3 Feb 2021
Trying to find a trustworthy trades person is often difficult and until you have used them you never know whether your decision was the correct one. I can say that I happy with the extension that NSD Carpentry & Building Ltd have completed. Steve can be trusted to do what is asked of him and I would be happy to use his services again. Could do better keeping the site clean and tidy!!
UP ABOVE GROUP LIMITED
Rating: 5 out of 5
Extension Builder in Dorking, South East England
Built on a foundation of expertise, Up above roofing and lofts brings a wealth of knowledge and experience to every project we undertake. We are committed to delivering the highest quality of workmanship and service to our clients. Our team is dedicated to providing the best possible experience from the initial walkthrough to the final walkthrough, we take pride in our work and stand behind it with 100% satisfaction guarantee.
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Latest review:
We was searching for builders for a long time, we are so happy we used up above, I have a young family and was worried about the house being disrupted due to the works, but we was pleasantly surprised! Very professional, kept us up to date with the work the whole time and we would highly recommend!
bagnall brickwork
Rating: 5 out of 5
Extension Builder in Dorking, South East England
I undertake small and large projects from garden walls, fencing ,internal alterations to extensions and new builds.i have been in the building industry since leaving school and finishing my apprenticeship more than 40years ago and have a very good eye for quality and affordability
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Latest review:
Conversions - General- 27 Oct 2025
Bagnall Brickwork provided great service when I requested a quote to reinforce a wall for a heavy 50kg TV mount. Although they didn’t end up doing the work, their honest advice helped me realise that reinforcement wasn’t actually necessary for my situation. Thanks to their guidance, I was able to find a much more cost-effective and appropriate solution without compromising safety or quality. This experience shows their ethical approach - they prioritise giving trustworthy advice over making unnecessary sales. Highly recommended for anyone seeking professional, reliable, and principled brickwork or building services.
Koli’s Construction Limited
Rating: 4.9 out of 5
Extension Builder in Dorking, South East England
Bricklaying Roofing Plastering Fencing Painting Driveways Extensions
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Latest review:
Plastering- 27 Dec 2024
Koli done a decent job plastering
Rosca Construction LTD
Rating: 5 out of 5
Extension Builder in Dorking, South East England
Hi my name is Constantin and I do building over 10 years my type of work is general building
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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.
NIH Property Maintenance
No reviews yet
Extension Builder in Dorking, South East England
We are a friendly, polite, personable, professional and hardworking company that pride ourselves on our workmanship and have many years of experience in the building/property maintenance industry. We work closely with our clients to deliver their dreams from a full house refurbishment to changing a bulb and anything in between, no job is an issue.
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Signature Lofts
Rating: 5 out of 5
Extension Builder in Dorking, South East England
Signature lofts is a small family Loft conversion company with 25 years experience . We specialise in Loft conversions and extensions in Sussex Kent & Surrey. Have a browse through our Website & Facebook.
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Latest review:
Loft Conversion- 1 Apr 2026
We recently had a loft conversion and extension done by signature lofts All the work they done looks great. They were very friendly, And at times worked very late into the evening and also some weekends I would definitely recommend Dave and his team for loft conversions and extensions. Best, Scott
Infinity Projects Group Ltd
Rating: 5 out of 5
Extension Builder in Dorking, South East England
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
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Latest review:
Electrical- 8 Apr 2021
Val was responsive and prompt, and performed EICR as needed.
LOUI"S MAINTENANCE LTD
Rating: 4.9 out of 5
Extension Builder in Dorking, South East England
we are a reliable professional small company,we provide a high quality of work at competitive price"s,we are fully insured for all the work we take on ,and we are proud of what we do ,no job to small or too big ,we do kitchen & bathrooms,plastering & tiling,wood flooring,painting & decorating ...
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Latest review:
Bathroom Fitting- 15 Oct 2024
Actually, I prefer to call him as Super Mario instead of Loui :) Initially I agreed to work with him just for our bathroom renovation project but he fixed almost everything later on. Pipe installation, plastering, painting, and installation of furnitures are just some points of this work. He made an amazing job while renovating our bathroom, I still could not believe it is ours. I just observed he was very disciplined and working vey clean. He came early 8 AM and left around 5 PM without any delay and more importantly left my property enormously clean (I wish you see my wife’s happiness), almost for a week. He then replaced my garage roof which was leaking after every rain. Fixed my rain gutters and drains. Well, he then fixed all my internal doors and garage doors which were not aligning properly. I am so happy as a customer and I am really happy with the quality of work. Thanks again Loui.
A Davies Carpentry & Joinery LTD
Rating: 5 out of 5
Extension Builder in Dorking, South East England
A Davies Carpentry & Joinery LTD is an established carpentry company, specialising in extensions and full refurbishments along with all aspects of carpentry and joinery. The array of skilled tradesmen employed by my business and trusted subcontractors in whom I have worked closely with over 14 + years, I complete every contract to the highest standard possible. Along with honesty and communication I work closely with my clients to ensure the most important task, customer satisfaction.
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Latest review:
Joinery & Cabinet Making- 23 Aug 2019
Can’t recommend Alex highly enough! He built wardrobes into our attic eaves, altered some stairs, and fitted our new wooden hallway flooring, all to an exceptional standard and at a very reasonable price. He was professional, tidy, efficient and consulted me every step of the way to ensure the finished design was exactly what I was after. I’ve already asked him about doing some future jobs I was that impressed.
S.G carpentry
Rating: 5 out of 5
Extension Builder in Dorking, South East England
SG carpentry & construction is a quality building company working in the south London and surrey area. We specialise in property refurbishment , kitchens , bespoke cabinetry and wardrobes , extensions , loft extensions , garden offices ,flooring and doors. We take pride in our professionalism , punctuality and attention to detail and use a wide variety of materials to suit all budgets. We aim for 100% customer satisfaction every time and provide you with the workmanship that you deserve.
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Latest review:
Extensions- 31 Oct 2019
Sam built a 9 meter by 4 meter ground floor extension for us, it has 2 rooms, 2 large sky lights, french doors and a patio. The build came in on time and on budget, Sam and his guys where always friendly and courteous, would explain what was going on and made sure we where happy with everything. We have autistic boys, one of them likes to know whats happening at all times and wanted to help and ask question non stop, the guys where absolutely brilliant with them, even letting them lay some bricks. I could not have asked for better workman when it came to my boys! We are very happy with our extension, it has made a massive difference to our home and lives. We have no problem at all in highly recommending Sam to anyone!! Shel & Jim Aitken
Mole Valley Builders LTD
No reviews yet
Extension Builder in Dorking, South East England
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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Carter's Brickwork
Rating: 5 out of 5
Extension Builder in Dorking, South East England
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
George
Rating: 5 out of 5
Extension Builder in Dorking, South East England
I am a NVQ level 2 bricklayer and stonemason with over 20 years of experience. As a professional experienced bricklayer, I can set out and undertake all types of brickwork, stonework and blockwork from garden walls to new houses. I pride myself on my work, so I focus on customer satisfaction and quality workmanship. All work is carried out to a high standard. I understand how hard it is to find a trustworthy and reliable tradesman. Hence when I start a job, I stay until it is finished.
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Latest review:
Bricklaying- 6 Jun 2026
The job was two small garden walls. George explained how the job would be carried out. He is friendly and turns up on time. He is a skilled worker and did a fantasic job. Would recommend George
Daniel Negru t/a MDN Building Services Ltd.
Rating: 5 out of 5
Extension Builder in Dorking, South East England
My name is Mircea Daniel Negru, with more than 24 years experience I am established in Epsom, for the last 14 years Please feel free to contact me through My Builder, I will personally come and give free estimates for any extension, loft conversion, refurbishment, external work, you need done. Regards: Daniel Negru
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Latest review:
Daniel carried out good work, I am very pleased about the kitchen and bathrooom. He was very reliable, honest, trustworthy and I would recommend him to anyone.

3.9

Top rated Extension Builders

Our Extension Builders in Dorking, South East England, are rated 3.9 out of 5 based on 15 reviews from customers like you.

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What types of services are offered by local extension builders in Dorking, South East England?

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, South East England 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, South East England who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Dorking, South East England?

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

Find extension builders in Dorking, South East England with MyBuilder

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

Step 2: Compare different extension builders in Dorking, South East England

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

Step 3: Hire Dorking, South East England extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Dorking, South East England, 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, South East England extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Dorking, South East England extension builder before hiring?

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

An extension builder in Dorking, South East England 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, South East England 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, South East England?

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, South East England 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, South East England 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, South East England

Can an extension builder in Dorking, South East England help with planning permission?

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

Many Dorking, South East England 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, South East England help with materials and finishes?

Yes, most extension builders in Dorking, South East England 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.