Extension Builders in Lambeth

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (20 reviews)

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Some of our top rated extension builders in Lambeth

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Daniels Contractors & Development ltd
Rating: 5 out of 5
Extension Builder in Lambeth
Daniel's Contractors is a team of building professionals with over 20 years' experience in the construction and renovation of commercial and residential properties. We pride ourselves on ensuring customers are completely satisfied with not only the finished project but also the process. This means our customers are usually recommended to us by friends and existing clients. As a result, we have more and more customers returning to use our services.
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Latest review:
Roofing (Pitched)- 29 Jan 2019
Very pleased with the work that Daniel’s Contractors continue to do for our home. We have now hired them to fix the leak in the roof, fix doors throughout our home and we recently had an extension / kitchen done. We are so happy we went with them. We cannot recommend them enough and will continue to use them whenever we need building work. Russ is easy to work with and takes a huge amount of pride in his work. All the builders were respectful of our home, were extremely hard working and worked quickly. The extension and kitchen is of a high standard and even better than we imagined. We couldn’t be happier.
A. plastering
Rating: 5 out of 5
Extension Builder in Lambeth
Hi. My name is Fatos. I have been in construction for over 17 years. We undertake rendering, plastering and painting jobs. High standard finish in very competitive prices. We also do loft conversion,roofing, plumbing, electric, tiling, extension ect. Our prioritie is to get the job done in very high quality
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Latest review:
Plastering- 22 Oct 2024
We needed to plaster our house ASAP and Fatos completed it in a short time. The house looks amazing, he was quick, efficient and was a great communicator. I would highly recommend him.
KG BUILD
Rating: 5 out of 5
Extension Builder in Lambeth
With your specifications and our expertise, we happily take on any building work and produce excellent results. Extensions, Loft conversions, kitchens, bathrooms, garden rooms/studios/outbuildings, roofing, flooring, carpentry and joinery etc
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Latest review:
Carpentry- 13 Dec 2025
Kwame did a great job and was thoughtful, communicative and very skilled with the work he was carrying out on our joists. I would recommend KG build to anyone looking for a good price and a high standard of work.
My Home Services London Ltd
Rating: 5 out of 5
Extension Builder in Lambeth
My Home Services London Ltd is a professional construction and home improvement company specialising in bathroom and kitchen renovations, house extensions, loft conversions, and full property refurbishments. We also provide expert gas, electrical, electronics, and smart home (domotics) installation and maintenance services. Our team delivers complete, high-quality solutions designed to transform homes by combining functionality, comfort, style, and modern technology. From small upgrades to large-scale renovation and extension projects, we work with a safe, reliable, and professional approach tailored to each client’s needs and vision.
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Latest review:
Handyman- 29 May 2026
Absolutely fantastic service, they did a great job!!! Friendly and professional. I look forward to having them back for more jobs. 100% highly recommend!! Thank you very much!
CM Building LTD
Rating: 5 out of 5
Extension Builder in Lambeth
At CM Loft Conversions, we specialise in luxury loft conversions, home extensions, and full refurbishments for both residential and commercial properties across London. Our dedicated team is renowned for transforming spaces with unparalleled craftsmanship and meticulous attention to detail. Whether it’s a high-end home, a modern office, or a commercial property, we deliver projects that elevate both form and function. By seamlessly blending design innovation with practical solutions, we ensure every project not only enhances the aesthetic appeal of a space but also maximises its value and usability. At CM Loft Conversions, we are passionate about creating bespoke spaces that reflect the unique needs of our clients. From concept to completion, we focus on the fine details and provide a smooth, stress-free experience. Whether you’re looking to transform your home, expand your business premises, or refurbish a commercial unit, our team is committed to delivering results that exceed expectations.
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Latest review:
I met Charlie and his team from CM Builders Ltd when they were completing a loft extension and ground floor extension for one of my neighbours. Quotation and budget I was given an estimate subject to drawings as I was on a strict budget that I had to keep to for the build. Charlie was able to help me keep to the budget, both at the final agreed plan and during the build. The project was complex in that whilst it was a loft extension, all of the house was rebuilt. The only thing kept was the external walls and first floor rafters. Whilst the footprint of the first floor was not being changed I wanted to bring it up to current building standards with extra insulation. All of the plumbing and electrics were also replaced including a new boiler. The overall build has come in on budget, save for agreed enhancements that I did not think of at the planning stage and or building regulations such as double ceiling fire plaster boards. There were also items such as the original stairs that I wanted to keep, but Charlie was able to increase the height space in the kitchen making the worktop much more usable for tall people for a larger part of the kitchen. These were suggested to me as potential options as part of the build. Stage payments The stage payments have all been sensible throughout the build and linked to the ongoing work schedule. I have not therefore had any concerns in this regard. Quality of work This was a very complicated build as unlike the ground floor the first and new second floor are “L” shaped. The new 2nd floor included an en-suite and 2 bedrooms. Overall the house has been increased from 2 bedrooms 1 bathroom, to four doubles and 2 bathrooms. The quality of work is excellent and Charlie project manages his team to ensure that they all deliver to a high standard- if it is not done correctlt they do it again, with Charlie spotting any issues. Timeline of build This has generally gone to plan very well. As with any build you have to be realistic as things will happen outside of anyone’s control. When issues have arisen Charlie manages them to a conclusion. Also be realistic if you are having to manage to a tight budget. I had to plan for various stage receipts of cash before I could order the kitchen and bathroom items - make sure you understand how this impacts the build and availability of the work force, recognising that CM Builders have to book kitchen fitters and plumbers. CM Builders are also very helpful in that they have sorted out issues with the brick work of my freestanding garage (nothing to do with the build) and also a neighbour’s wall that could have been dangerous to the public, should it have failed. Conclusion The whole family are very pleased with the outcome and we now have the equivalent of a brand new house that has been built to a very high standard. This has definitely been worth doing both from a valuation perspective and quality of life perspective. I would not hesitate to instruct Charlie and his team again.
SEASOUTH BUILDS LIMITED
Rating: 5 out of 5
Extension Builder in Lambeth
At Seasouth Builds, we bring over 5 years of hands-on experience in the building and construction industry. Known for our loyalty, reliability, and attention to detail, we take pride in delivering high-quality workmanship on every project
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Latest review:
Tiling- 24 Sep 2025
I hired seasouth builds because not only did he give a really reasonable quote, but he also had knowledge of tiling over retrofit underfloor heating - which other tilers seemed to be really hesitant to work with. The job was done to an excellent standard - he’s a real perfectionist. It did take a bit longer than expected, due to some floor level issues which he didn’t account for when he quoted. I was really worried about the price increasing out of my budget when we started running over time, but I was so grateful to find that he was a really honest guy who stuck to the agreed quote and didn’t try to make it my problem one little bit. He was polite and friendly throughout the whole job, turned up whenever he said he would, and kept in constant contact. Really honest (I happily left him unattended in my property). Customer service was excellent, nothing was too much trouble. 10/10 would recommend.
SIXTHART LTD
Rating: 5 out of 5
Extension Builder in Lambeth
We are an Architectural and Interior Design Studio. We effective planning and technical drawing services. Our Services - Site Survey -All Drawings with Cad Software (Demolish/Proposed) - Draft Planning - Pre Advice Planning - New Build Design - Loft Conversion - Home Extensions - 3D Visulation -Kitchen &Bathroom design projects - Preparation and submission of planning applications - Hourly\Daily Based CAD Services - 3D Modelling (Internal & External Visualisation) -Member of TAG (Traditional Architecture Group) -Bachelor’s Architectural Design Practice -NAAB -TMMOB
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Latest review:
Extensions- 16 Sep 2024
Erhan was excellent. He followed my project from start to finish and kept me updated throughout. Here to the next project!
Be-Studio Ltd
Rating: 5 out of 5
Extension Builder in Lambeth
bé-studio is an award-winning interior design practice specializing in contemporary residential and commercial projects. We collaborate with a broad range of professionals to bring diverse projects to life, no matter the size, no matter the scope. Services Provided Architectural Design,Home Renovation, Interior Design, House Extension, Kitchen Design, Garden Design, Living Room Design, Home Extensions, House Plans, Complete Bathroom Renovation, Design & Build
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Latest review:
Bilal and his team designed the plans for the extension of the ground floor of our house. He invested time in understanding our ideas and needs, and translated them into something that is both inspiring and practical. They provided amazing visualizations for us to imagine the final look.I recommend Bilal and his colleagues for a hassle free and highly professional service.
LH Builders & Plumbers
Rating: 5 out of 5
Extension Builder in Lambeth
Hi we do all building works been in the business for 25 years we are a family run business.all our tradesmen are fully qualified.we aim to please our customers as word of mouth is essential to us No job to small. We also do camera drain inspections and leak detection with thermal imaging. Leah is our assistant and replies to emails and sends us the job leads while we are working
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Latest review:
Plumbing- 8 Jul 2026
I asked Gareth to come and help identify the source of a leak as I wasn’t totally satisfied with the first opinion I had received and wanted a second opinion. He was extremely knowledgeable, very down to earth and found out what the problem was with relative ease. He has an easy confidence of someone who knows exactly that they are doing. I wish I had used him first time round.
Towergate Design
Rating: 5 out of 5
Extension Builder in Lambeth
Towergate Design Studio is a London-based leading practice working in the residential and commercial sector. We have a reliable and excellent painting team with reputation for high-quality work, attention to detail, professionalism, including punctuality, clean communication and using quality materials. We are the A turnkey company provides a service from design to the final, fully functional and innovative building projects . We handle all aspects of a project, including design, engineering, procurement, construction, and installation.
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Latest review:
Painting & Decorating- 8 Jan 2026
Great job done - Bulent was quick to communicate and efficient in getting everything finished. He was careful to ensure a high standard of finish and I am very happy with the result. He even did extra bits like sealing our bathtub on top of the painting requested.
Torc Groundworks Ltd
Rating: 5 out of 5
Extension Builder in Lambeth
Torc Groundworks & build take a professional approach to all groundworks, including piling, foundations, underpinning, drainage, RC Works, Brickworks, Paving, driveways and Landscaping.
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Latest review:
Groundwork & Foundations- 9 Nov 2023
Very professional, finished the job to a great standard.
Full Circle Renovation Ltd.
Rating: 4.9 out of 5
Extension Builder in Lambeth
Comprehensive project management in London. We specialize in complete refurbishment projects. In the last 15 years our team has been involved in a number of property renovation jobs, having accumulated extensive knowledge of the trade and valuable contacts with specialist craftsmen, suppliers and other professionals. We can help with the whole process from planning to delivery of final finishes. Call us today for a free no-obligation initial consultation, followed by a detailed cost estimate.
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Latest review:
The refurbishment of my small one-bedroom flat took approximately 2.5 months. I compared several builders before starting the project. The price was not the cheapest and the proposed timeline was not the shortest. Though Radilina seemed to be a good project manager and liked that she works on a fixed price for each work.
SDS CARPENTRY & BUILDING SERVICES LTD
Rating: 5 out of 5
Extension Builder in Lambeth
SDS CARPENTRY & BUILDING SERVICES LTD is a team of qualified builders with over 15 years of experience and have all the skills necessary to take on board any building project at an extremely high standard. Yes, we’ll add real value, save you time and effort, keep disruption to a minimum and manage the project from design to final-fit. Our clients choose us because we have exceptional customer service and can deliver projects on time and within budget.
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Latest review:
Carpentry- 9 May 2020
I had a parquet floor laid and was very pleased with the result and attention to detail. Sergiu worked very hard and was a pleasure to deal with.
Onyx Construct Limited
Rating: 5 out of 5
Extension Builder in Lambeth
We are a multi-trade construction company operated in domestic sector and we are able to full-fill any building requirement. The scope of projects we have delivered in the past spans from smallest jobs like kitchen or bathroom fitting to extensions, house refurbishments or loft conversions.The majority of our previous clients were extremely satisfied with high standard and quality of work. If you are looking for professionals builders with reasonable prices - you are on the right profile !
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Latest review:
Extensions- 29 Nov 2023
We had the most fantastic experience with Sarunas. He was highly professional from start to finish and completed the work to the highest standard. We extended our project significantly once we realised how excellent he was and he has now renovated our whole home over an 18 month period. He was able to guide us through the process and help us make key decisions which made the experience smooth and efficient. He is extremely skilled in all aspects of building, has high attention to detail and is a pleasure to have in your home! I couldn't recommend him higher and look forward to having him back in future to convert our loft!
Tafix ltd
Rating: 5 out of 5
Extension Builder in Lambeth
Hello, Tafix Ltd is specialised in carpentry and joinery jobs. We have a well-earned reputation for being punctual, reliable and completely trustworthy. Our team of skilled workers is always happy to help you with your project.
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Latest review:
Kitchen Fitting- 29 Nov 2020
Very satisfied with Tafix. Rewire, kitchen refurbishment and flat redecoration. Kamil and his team were extremely punctual and delivered high quality results. Step by step approach with impressive attention to detail. Creative in finding solutions to unexpected problems that arose. Kamil was proactive in advising on work outside of scope and happy to accommodate extra jobs where possible. Would recommend to others and will look to use for future work.
Dragon Property Solutions
Rating: 4.9 out of 5
Extension Builder in Lambeth
Dragon Property Solutions – Where Quality Meets Reliability, and Your Satisfaction Shapes Our Reputation. At Dragon Property Solutions, we’re proud to be North Wales’ trusted all-trades property maintenance company. With over 25 years of experience, we’ve built a solid reputation for delivering dependable, high-quality workmanship across every aspect of property care. From roofing and plastering to painting, rendering, and full renovations – we do it all with precision, professionalism, and pride. Our experienced team of skilled tradespeople is committed to excellence at every stage – from your initial consultation to the final finishing touch. We specialise in providing durable, cost-effective solutions tailored to residential, commercial, and public sector properties throughout North Wales. Whether it’s a minor repair or a full-scale project, Dragon Property Solutions is here to protect, improve, and maintain your property to the highest standards – whatever the weather.
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Latest review:
Fascias & Soffits- 19 Nov 2025
Brilliant job, lovely lads, great communication, very happy with the work thank you so much .

Top rated Extension Builders

Our Extension Builders in Lambeth, are rated 4 out of 5 based on 20 reviews from customers like you.

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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 Lambeth?

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

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

What are the hourly rates of extension builders in Lambeth?

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

Find extension builders in Lambeth with MyBuilder

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

Step 2: Compare different extension builders in Lambeth

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

Step 3: Hire Lambeth extension builders with confidence

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

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

What to ask a Lambeth extension builder before hiring?

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

An extension builder in Lambeth 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 Lambeth 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 Lambeth?

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 Lambeth 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 Lambeth 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 Lambeth

Can an extension builder in Lambeth help with planning permission?

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

Many Lambeth 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 Lambeth help with materials and finishes?

Yes, most extension builders in Lambeth 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.