Extension Builders in Clapham Common

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

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

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 Clapham Common

3412 Results

Sort by:

Abaco Marea
No reviews yet
Extension Builder in Clapham Common
Abaco Marea Ltd. Building with Integrity! Abaco Marea is a company with many years of experience who offer a service which is second to none. Our teams of professional builders have the ability to manage projects of all sizes. We provide intelligent and creative solutions to problems and an attention to detail whichresults in a matchless quality of finish.
Get in touch
LS London Contractors
No reviews yet
Extension Builder in Clapham Common
LS London Contractors - Experienced and friendly team, located in South West London, specialising in extensions, loft conversions and all refurbishment works to a high standard finish for customers.
Get in touch
Future Shapes
Rating: 4.9 out of 5
Extension Builder in Clapham Common
We are a company who believe in building an outstanding relationship with each and every one of our clients. We pride ourselves on achieving impeccable standards of work, earning trust with our clients through our friendly, reliable, thorough and clean work. We now have an exceptional reputation for delivering fantastic results and over-delivering on expectations with our clients.
Get in touch
Latest review:
Restoration & Refurbishment- 31 Aug 2020
It was a pleasure dealing with Peter and his team from start to finish and we couldn’t be happier with the work that they did. I was impressed with Peter’s previous work and we developed a good rapport from the first meeting and I felt that I could trust him with the work. He was clear about the detail of the work that needed doing upfront and his quote was itemised to reflect what each element would cost. The work was done on time and of a high quality and Peter was responsive at all times to any questions or concerns we had. He also made great suggestions of how we could do things better and was open to our ideas and realising our dream. His team were punctual, friendly and took care of the house ensuring the work that they did was of a high standard at all times and attention to detail which really has made a difference now that the project is completed. I wouldn’t hesitate to recommend Future shapes to anyone and would certainly use them again.
Peter renovation
Rating: 3.7 out of 5
Extension Builder in Clapham Common
When you need a reliable builder for refurbish or extend your property our skilled team of experienced craftsmanship are ready to help you. We can provide a tailor-made service to suit your budget and requirements!
Get in touch
Latest review:
Conversions - General- 6 Oct 2025
Peter and Dan did an excellent job from start to finish. They were professional, reliable, and easy to work with. The quality of their workmanship is top-notch, and they finished everything on time and to a high standard. I’m really pleased with the results and would highly recommend them.
Abdullah azouz.
Rating: 5 out of 5
Extension Builder in Clapham Common
I’m involved in residential property development. My role includes supporting construction projects, coordinating with teams, and helping ensure work is completed efficiently, on time, and within budget.”
Get in touch
Latest review:
Bathroom Fitting- 23 Apr 2026
Rapid response and professional work.
Tee&Zee
Rating: 5 out of 5
Extension Builder in Clapham Common
Hi, we are a reliable, efficient team who love what we do. With 8 years of experience in the building industry, we offer a various type of work, from Loft Conversion, Rear Extension, Side Extension, Full Refurb, Kitchens, Bathroom, Even As Small As Putting A Picture Frame On The Wall. We take pride in our work, and ensure the work is 10/10. We are on time, friendly and trust worthy. We are the team to choose!
Get in touch
Latest review:
Kitchen Fitting- 1 Jan 2023
I have to say that Tyrone who carried the work out for is very professional and commendable. He was always on time and eager to get the work done. His attention to detail is simply quite impressive. Having completed the work i was rather surprised to learn that he called back the next day only to complete a very small detail that he forgot. A small detail that was not exactly noticeable, thus leaving us with satisfactory results. I’m certainly going to recommend their services to anyone who might require their services. Many thanks 👏👏👍
ALSOAA CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in Clapham Common
⸻ Hello! I'm [mohammad], owner of [alsoaa construction ltd]. We have years of experience in home renovations and construction, and I pride myself on providing high-quality, exceptional customer service. Whether you need kitchen and bathroom renovations, painting and decorating, or custom tiling, my team and I are committed to making your vision a reality. We listen carefully to your needs and offer honest advice to ensure long-lasting results.
Get in touch
Latest review:
Tiling- 29 Nov 2025
Recently had some tiles and splash backs put up. Excellent communications with Mohammad, his team was very punctual and professional the work was done to a very high standard. Pleased with the end result and will be using his service again. Highly recommended thanks again to Mohammad and his team.
Fast5 Limited
Rating: 5 out of 5
Extension Builder in Clapham Common
Are You Tired of Dealing with Builders? We Have the Solution! ✓ Honest and Transparent Pricing ✓ On-Time Project Completion ✓ One-Stop Shop for All Your Building Needs ✓ Residential and Commercial Construction Expert ✓ Health and Safety Compliant ✓ Regulatory Compliant ✓ Insured Don't let construction headaches ruin your home renovation dreams! Contact us today and experience the difference.
Get in touch
Latest review:
I recently had the pleasure of working with Fast5 for the refurbishment and renovation of my house in London, and I couldn't be happier with the results. The team displayed a high level of professionalism, expertise, and attention to detail throughout the entire project. From the initial design phase to the physical construction, they demonstrated their commitment to customer satisfaction. The comprehensive range of services offered by them included architecture design, interior design, and physical construction, ensured that every aspect of my home renovation was handled with precision and completed to the highest standards. The team's expertise and experience were evident in their work.
Angle Construction
Rating: 4.7 out of 5
Extension Builder in Clapham Common
We have been in the construction business for over 15 years doing all sorts of works, from minor works to full home constructions. No job to small no job to big. We work in and around London
Get in touch
Latest review:
Windows & Doors (uPVC & Metal)- 28 Jan 2026
Very unhappy with how things went with Angle Construction overall. Poor comms during the transaction was the first red flag - no communication for 2 days the moment money was sent, however afterwards received an apologetic call - parts ordered and arrived in due course. Andrei turned up, and got to work on removing the old gate, but then started shaving down the post without saying anything -we were told after that the posts were not level. Eventually he said the door would need to be cut, which we agreed to. The door and posts were both cut to fit, but massive gap left at the bottom, and only half of the door fittings and no handles were installed! In addition, where the door was cut and the wood shaved made, a lot of mess was left all over the garden furniture and patio floor. Shocked at the lack of care and professionalism. He was clearly agitated and in a rush to leave. We have a working back door, but it looks like a real botched job. Not happy, and I would not recommend.
AVOTERG Ltd
Rating: 5 out of 5
Extension Builder in Clapham Common
Our aim is to help clients achieve their objective on time and budget and to the highest standard. We value the good communication with the clients, and try to have as much information as possible with regards to how their project must look when completed.
Get in touch
Latest review:
The job was a complete refurbishment of a one bed flat, including rewiring and re-plumbing. We would recommend Al and his team without any hesitation. From the very beginning and all the way to completion, we felt very lucky and fortunate to hire them. We found them to be very hardworking, conscientious and professional. The job was a difficult and complex one, but the team still completed within time and within budget. Al's advice made the whole process easier and we found him to be very trustworthy and honest. The end result was better than we originally hoped for and was done to a high standard.
A J Keating
Rating: 5 out of 5
Extension Builder in Clapham Common
Hello we are a family firm based in north London. With more than15 years experience doing mostly exterior work. We enjoy difficult jobs and like a problem to be solved. Retaining walls, drainage, foundations are our bread an butter.We pride ourselves on a great job at a fair price.
Get in touch
Latest review:
Groundwork & Foundations- 30 Aug 2022
Axel & his team have done a huge amount of work for us through 2022. They started by building the foundations, and then also built the block walls and the structure for the roof. They also constructed an entire extra timber framed shed. After more than four months of working for me constantly I can say that I'm very happy with the quality and speed of Axel's work. He has worked through all the work we have given him, and all the extra issues that came up, with a pragmatic and competent approach. The site today is unrecognisable from when he arrived (he also removed several tonnes of soil for us etc), and I would hire him again without reservation.
KG DESIGN & BUILD LTD
Rating: 5 out of 5
Extension Builder in Clapham Common
Hi I`m Kleida .I worked in Building industry for a while now and I have built a quite a knowledge on extensions loft conversion and refurbishment . I recently decided to start working for myself .I also have a very good working team with various knowledge on various stages of projects .
Get in touch
Latest review:
Conversions - General- 8 Oct 2025
Gaz and his team were professional and hard working, and clear about what would happen when. The job is now finished to a good standard, and on time.
chins design and build
No reviews yet
Extension Builder in Clapham Common
We undertake all manner of building and renovation work, having worked on a vast variety of jobs a professional, seamless and multi-trade service, for all domestic projects from , extensions, renovation, refurbishment and to fully finished houses, all tailored to meet our clients’ specific requirements. professional construction company covering South London and Greater South London.
Get in touch
FKL
Rating: 5 out of 5
Extension Builder in Clapham Common
Hi thanks for taking the time to read my company profile, Form Construction specialise in extensions lofts basements and renovations. We strive to deliver quality workmanship. We pride ourselves on being quality tradesmen, always going the extra mile for our clients. We work with many different suppliers to ensure our clients get good value and good quality materials. If you feel we are suitable for your project please get in touch to discuss your project Many thanks John Campbell
Get in touch
Latest review:
Kitchen Fitting- 3 Sep 2020
Very reliable, hard working and talented ! His quotation was incredibly reasonable too. Very grateful
Goldenfield
No reviews yet
Extension Builder in Clapham Common
Loft convention, kitchen Extention, house conversion to flats.
Get in touch
M&I ELECTRICAL SERVICES LTD
No reviews yet
Extension Builder in Clapham Common
General Building & Electrical Engineering. Professional Builder, Electrician & Plumber – All-in-One Service! Sign & Awning Looking for a skilled and reliable tradesman for your next home project? I offer high-quality building, electrical, and plumbing services at competitive prices. Services Offered: General Building & Renovations (Extensions, Loft Conversions, Refurbishments) Plumbing & Heating (Leaks, Pipework, Bathrooms, Radiators) ⚡️ Electrical Work (Rewiring, Lighting, Sockets, Fuse Boxes) Plastering, Tiling & Painting Carpentry Kitchens, Bathrooms & Flooring Sing & Awning ✅ Fully Qualified & Experienced ✅ Reliable & Affordable
Get in touch

4.1

Top rated Extension Builders

Our Extension Builders in Clapham Common, 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 Clapham Common?

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 Clapham Common 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 Clapham Common who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Clapham Common?

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

Find extension builders in Clapham Common with MyBuilder

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

Step 2: Compare different extension builders in Clapham Common

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

Step 3: Hire Clapham Common extension builders with confidence

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

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

What to ask a Clapham Common extension builder before hiring?

Before hiring an extension builder in Clapham Common or extension building company in Clapham Common, 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 Clapham Common?

An extension builder in Clapham Common 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 Clapham Common 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 Clapham Common?

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 Clapham Common 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 Clapham Common 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 Clapham Common

Can an extension builder in Clapham Common help with planning permission?

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

Many Clapham Common 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 Clapham Common help with materials and finishes?

Yes, most extension builders in Clapham Common 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.