Extension Builders in Lambeth

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (19 reviews)

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Some of our top rated extension builders in Lambeth

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Dagat Ltd
Rating: 5 out of 5
Extension Builder in Lambeth
DAGAT LTD is an established family-owned property development and refurbishment company who have been successfully trading in the South East of England. Whether we are constructing a new bespoke property, beautifully re-developing a home, or carrying out extensions of all shapes and sizes, each project always receives the same thoughtful and meticulous attention to detail. We are additionally able to provide an extensive range of commercially orientated projects having worked for a wide range of industry sectors. We strive to create a mutually beneficial close working relationship with our clients and / or their management team. We can either complete a project from the initial planning stage or work from an architect’s plans. Our pride in working all the way through to a beautiful finish has been a major contributory factor in our success.
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Latest review:
Conversions - General- 3 Sep 2025
Big refurb of 1650 sq ft flat, plus building 2 additional ensuites. Initial quote seemed reasonable but then once in, costs started to rise exponentially. Some work was done well, like the building component and flooring, but finishing was poor. Painting, particularly of internal doors, was done poorly, without removal of fittings first, so lots of overpainting and insufficient prep and coats. Regrouting and redecoration of front and rear patios was done poorly, with weeds already poking through. There was damage to existing bathtubs and WCs by not protecting surfaces and pouring waste materials down the pan. Everything was an argument with constant demands for more money e.g. front door only painted one side as the other side not included under "paint door". Lots of "snagging" - I only have manual on/off control of heating and hot water as "smart" thermostat won't connect, there are odd water pressures through some fixings...and now there's a leak under one of the WCs...
Adamus and Contractors Limited
Rating: 5 out of 5
Extension Builder in Lambeth
Adamus & Contractors Limited We’re a friendly, hands-on building company with 10+ years’ experience, specialising in refurbishments, loft conversions and extensions. Whether you’re opening up a space, extending your home, or bringing an older property back to life, we handle everything from start to finish. We’ve got an in-house architect and interior designer, so we can take care of the planning, design and build all under one roof — making the whole process a lot easier for you. From steels and structural work right through to the final finishes, we use a solid team of trusted trades and take pride in doing things properly. We’re used to working in people’s homes, so we keep things tidy, organised and running smoothly. We keep it simple: clear quotes, honest advice, and no surprises. If anything changes along the way, we’ll talk it through with you first. You bring the vision. We bring the standards. At the end of the day, we just focus on doing a proper job and leaving you with a space you’re genuinely happy with.
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Latest review:
Restoration & Refurbishment- 22 Jul 2026
Hired for a kitchen refit and other works including removing a wall to open kitchen out. Understood the job, and where appropriate offered helpful suggestions. Excellent communication throughout, I was always aware of the current status of the job. Work performed exceeded expectations - and I hope they will be free next time I have works that need doing.
Solid Group Renovations
Rating: 5 out of 5
Extension Builder in Lambeth
We are a highly experienced and skilled team specialising in property refurbishment and renovation. Our expertise includes HMO conversions, loft conversions, house extensions, and complete property refurbishments. We work closely with our clients throughout every stage of the project, ensuring clear communication and a smooth, stress-free experience. We are always accessible and committed to keeping you informed, so you remain in control of your project from start to finish. Our goal is to deliver high-quality workmanship and bring your vision to life, helping you achieve the renovation or property transformation you have always envisioned.
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Latest review:
Bathroom Fitting- 31 Jul 2026
I’m so pleased with my new bathroom and would highly recommend Saba and Zura. They were friendly, reliable and hardworking throughout the project, kept me updated on progress, and were always happy to answer any questions. The quality of the workmanship is excellent, and they paid great attention to detail to make sure everything was finished to a high standard. Thank you both for all your hard work – I’m delighted with the end result!
2AM Construction
Rating: 4.6 out of 5
Extension Builder in Lambeth
Hi this is Ali I am electrical contractors with over 10 years of experience who covers all types of electrical work. I do both domestic and commercial installations, rewiring, fault finding, repairing, fire alarms, smoke alarms, emergency lighting, EICR Certificate
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Latest review:
Electrical- 3 Oct 2025
went very well - almost superb, maybe of 5 stars 4.9.
Mark's Amazing Building Company
Rating: 5 out of 5
Extension Builder in Lambeth
Mark and his team of 8 have over 100 years of trade experience between them. Each member of the team has honed their craft in a specific trade from bricklaying to plastering, extensions to renovations. Working so close to each other and as a team, they create extensions and renovations to a high standard and always work on one job at a time to ensure a finish of high standards.
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Latest review:
Mark and his team did an amazing job on our extension. We will shout it out from the rooftops. They walked us through all aspects of the build and where so friendly and clean. If we ever extend anything else we will look them up.
Tawfik Werfalli
Rating: 5 out of 5
Extension Builder in Lambeth
At Miko Construction, we specialise in high-quality residential refurbishments, extensions, and fit-outs. We’re a small, experienced team that takes pride in delivering well-crafted work with clear communication throughout. Whether it’s a full home renovation or a bespoke interior project, we bring a personal, hands-on approach from start to finish.
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Latest review:
Tawfik’s team was very professional and very knowledgeable, they done a great work including helping me with the design and understanding the process required to complete a project at this size, he completed the electrical work tested it and also included great ideas with the LED lights that made A beautiful design at the end, he also recommended a lot of subcontractors in the area are very competitive in their price and practically manage the project with me from inception to completion.
Ed’s loft conversions Ltd
Rating: 5 out of 5
Extension Builder in Lambeth
We specialise in loft conversions, Extension to a complete house refurbishment.
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Latest review:
I engaged Edi to work on a full renovation and refurbishment of a 4 bedroom detached house with front and back gardens on Blackheath’s Cator Estate. Edi did an extensive amount of work, including stripping out; plumbing; plastering; windows installation; carpentry; and decoration. In addition, after commencing the property work, once the scaffold had been erected, following sensible advice, Edi and his team replaced the roof and fully insulated the attic; fitted additional electric points; rebuilt the garden patio; and replaced the flooring throughout, in addition to other important jobs including re rendering and pointing of chimneys, building new wardrobes in the main bedrooms; and upgrading the radiators. A new kitchen, and two new bathrooms have been fitted. The kitchen redesign meant knocking through a wall with the lounge to create a larger space. Edi is a highly skilled craftsman, who thinks creatively as he works to make best use of the space, including shelf fittings, and additional lighting for example. He has built some beautiful wardrobes, and the internal decorations have brightened up what was previously a rather shabby looking house. In addition to the above, I wish to commend Edi for his professionalism, courtesy, and passion for doing the best work possible. On all the site visits I attended, and every time I spoke with him on the phone, it was striking how much he cared about the work that he was doing, his desire to ensure that the house would look the best. I always left site visits with the feeling that he cared so much about the house that he could be safely relied on to give the best advice to enable us to make the right decisions. I also noticed that Edi and his team would take the upmost care to keep the property safe, tidy and in good shape throughout the project. He can be fully trusted to look after any site he works on. He is intelligent and careful when it comes to safety and security. It has been a pleasure for Edi and his team to work with us over a period of around 6 months, and he did so much to reduce the stress of a significant project so that we could always rely on him to work methodically, patiently and sensibly, and to make best use of the resources available. His pleasantness shines through, and everyone I know who has spoken to him has always provided me with the most positive feedback I have no hesitation in recommending Edi to anyone who wishes to engage him for future projects, and is most deserving of the good words that I and others that work with him have to say about him.
LLC projects limited
Rating: 5 out of 5
Extension Builder in Lambeth
At LLC PROJECTS LTD, we deliver high-quality building and renovation services across London, Surrey, and Hampshire. With over 16 years of experience in the construction industry, our team specialises in all aspects of building works, maintenance, and plumbing — from full refurbishments and extensions to kitchen and bathroom installations. We pride ourselves on excellent workmanship, attention to detail, and reliable project management from start to finish. Most of our work is carried out in-house to ensure consistent quality and high standards. Whether it’s a small repair or a large-scale project, we approach every job with professionalism, transparency, and care. Contact us today to discuss your next project and see how we can bring your vision to life
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Latest review:
I recently hired LLC Projects Limited to refurbish my ground floor and add a new bathroom, and I couldn’t be happier with the results. From start to finish, the team was professional, reliable, and truly cared about delivering quality work. The new bathroom looks amazing, and the ground floor transformation exceeded my expectations. Communication was great throughout, and they kept everything on track and tidy. The crew was friendly, and they handled any concerns I had quickly. I’d definitely recommend LLC Projects Limited for any home improvement work—they’ve earned my trust, and I’ll be calling them again for future projects
SGB Water Engineering
Rating: 5 out of 5
Extension Builder in Lambeth
SGB maintain an interactive IT process, to ease transparency and movement of information data, to all parties involved in any one project. We have a combined 25 years professional experience in the civil engineering / construction management. We are experts in water utilities management enabling us to offer a variety of services and solutions in this area.
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Latest review:
Plumbing- 9 Dec 2020
Work completed and problem has been resolved .
Firfield Property Services Ltd
Rating: 5 out of 5
Extension Builder in Lambeth
We specialise in renovations & refurbishments of residential properties in London. Our team arrive on time, are highly professional & polite and leave your home in pristine condition. **Free quotation and advice **All work guaranteed **Fully insured ** References available
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Latest review:
Handyman- 26 Aug 2014
The job went very smoothly and there were no problems. Twana, from Mark's team was punctual, professional and did the job exactly how we wanted it. We will certainly be using them again.
London Builders & Decorators
Rating: 5 out of 5
Extension Builder in Lambeth
London Builders & Decorators has been operating since 2016 in London. We our general builders who carry out Extensions, Lofts and Full Renovations. Why not shortlist us and come visit one of our sites. We run 5-7 sites at once so there will be one nearby. We try to keep things simple so the customer knows what is being done. Building work should be explained and expectations should be managed. We are a Member of the Federation of Master Builders & Gas Safe Registered
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Latest review:
Tiling- 22 Mar 2018
very professional work, the team was very flexible, patient and helpful with me adding some ideas along the way. I am very happy with the results.
PLANNING APP LTD
Rating: 5 out of 5
Extension Builder in Lambeth
We create architectural drawings. We are specialised in applications for planning permission and building regulations and co-operate with local structural engineers for structural calculations, party wall surveyors and building companies. Our projects include extensions, lofts, garages, house&flat conversions in different councils all around London. If you are thinking of extending, converting, or splitting your property do not hesitate to contact us for a free first consultation & quotation.
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Latest review:
CAD / Drawings- 23 Sep 2020
Marius has been doing a great job and put in an extra effort to ensure we were happy with the outcome. I can not recommend Marius highly enough, especially as he managed to fix an issue with the council that we had from someone else drawings. He was patient and very well prepared. Went an extra mile and gave us different ideas/options. He was flexible with timings and most importantly with price. Had by far the best quote and did an exceptional job.
Teimourazi Bachsoliani
Rating: 5 out of 5
Extension Builder in Lambeth
Hi, my name is Temo. Our team has combined experience of more than 20 years and we have an excellent reputation, for high quality work, tidy finish and friendly service. My team does all types of jobs including extension, loft conversion, full refurbishment. We always deliver best quality job for a reasonable price.
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Latest review:
Conversions - General- 23 Jul 2025
I recently had the pleasure of working with Teimo and his team on a full renovation of a probate house, and I couldn't be happier with the results. The entire house needed a complete overhaul, including two new bathrooms, a kitchen extension, new doors, skirting, walls, plumbing, electrics, as well as front garden paving, a brick wall, and back garden fencing. The quality of the work is outstanding. Teimo and his team take immense pride in everything they do, and it really shows in the final product. They are not only highly skilled but also incredibly polite and tidy, ensuring the worksite remained clean throughout. They worked hard, from 8:30 AM to 5:30 PM every day, and completed the project on time without any issues. What truly stands out about Teimo is his honesty and clear communication. He’s upfront about everything, and you can trust that the price you’re quoted is the price you’ll pay—there are no surprise cost increases along the way I highly recommend Teimo and his team
Daren Love
Rating: 5 out of 5
Extension Builder in Lambeth
I've 35 years experience in the building trade. I'm tidy conscientious and reliable. I've recently left my old company of 12 years,where I was a working foreman, doing extensions, refurbs and patios
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Latest review:
Bricklaying- 20 Jun 2024
I needed a couple of front garden walls built and I contacted Darren. Darren has a great scope of knowledge and experience in brick laying. He is very attentive to detail and gave good advice. Great work Darren 😀
Signature 1 Construction Ltd
Rating: 4.5 out of 5
Extension Builder in Lambeth
Signature 1 Construction LTD is a family run business with over 25 years experience in the building industry. We specialise in extensions, loft conversions and full house refurbs. Every job we undertake we take great care of the clients house and are experienced project managers will look after you from start to finish.
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Latest review:
Extensions- 30 Sep 2025
Overall, I’m very pleased with the work Marin has carried out for us and I’m currently in the process of instructing him to do more work. Marin built a high spec cedar shed for us with electrics and plumbing, some brickwork and laid composite decking. Marin came across, honest and reliable, which in itself is rare. He was on site most mornings to make sure his tradesmen were on the right tracks. Like with a lot of these things there were some issues along the way and I was highly impressed by Marin’s ‘no quibble’ approach to rectify any problems. I myself have a high attention to detail and am quite indecisive (nightmare client) and Marin was happy to work with me with changes to the project without incurring extra costs.
London & Kent Best Kitchen & Bathroom Solutions Ltd.
Rating: 5 out of 5
Extension Builder in Lambeth
Our highly skilled team of builders, carpenters, electricians, decorators and plumbers are reliable, trustworthy and dedicated to achieving the highest quality finish for your project; however large or small. Each project is tailored to your requirements and managed via a single point of contact.
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Latest review:
Bathroom Fitting- 26 Nov 2020
Sylwester and team did a fantastic job and were incredibly accommodating and polite with all of our requests. Would definitely recommend.

3.9

Top rated Extension Builders

Our Extension Builders in Lambeth, are rated 3.9 out of 5 based on 19 reviews from customers like you.

Quality screening

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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.