Extension Builders in Lewisham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.7 (19 reviews)

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Some of our top rated extension builders in Lewisham

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Alex
Rating: 4.9 out of 5
Extension Builder in Lewisham
Hi I offer good quality work which includes general construction works, painting interior, exterior, walls and ceiling repair and wood work I also offer handy man jobs, decking installation and repair,groundwork jobs.
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Latest review:
Carpentry- 13 Aug 2026
Alex did what I asked and did a great job installing the awning. He also installed a metal shed and put up a beam to cover part of a wall. Overall, the work was good, although a few small details were missed in the shed, which seemed to be due to a lack of attention to detail. I found the price a little expensive, but overall I’m happy
Naz
No reviews yet
Extension Builder in Lewisham
Experienced and dedicated team of carpenters with over 9 years of experience in providing high-quality construction and roofing services. Our services: -skirting/architrave/windowseal/ -stairs/handrail/spindles -wood flooring(standard/herringbone) -door instalation -kitchen installation -mdf cupboards/kitchens/wardrobes(cutonsite) -partitions/roof structure -grp/slates -Velux installation
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Gm constructions London ltd
No reviews yet
Extension Builder in Lewisham
Hi my company name Gm constructions
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INM Construction Ltd
No reviews yet
Extension Builder in Lewisham
We are based in Stoke Newington and have recently joined Mybuilder to expand our work and fill in gaps. Our company conducts construction work on small and medium scale projects. Whilst we specialise in loft conversions and extension buildings, we have over 20 years of experience in general construction work, carpentry and roofing, having completed over 500 projects.
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Dochita Iosif
No reviews yet
Extension Builder in Lewisham
Over 20 years in construction. We are a small and hard working team. We have done many jobs successfully and people like the way we work. If you don't want to have headache and to be safe with the work you have, then we are the right team!
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Abaco Marea
No reviews yet
Extension Builder in Lewisham
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.
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Zlatko Petreski
No reviews yet
Extension Builder in Lewisham
All aspect of building constriction.
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ACAR BROTHERS LIMITED
No reviews yet
Extension Builder in Lewisham
It is a design and construction company that operates in London by an Architecture Graduate Huseyin Acar, completing BSc Architecture (2012) and Master of Architecture(2014) at the University of Bath.
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Plaza
Rating: 5 out of 5
Extension Builder in Lewisham
With over 10 years of experience in the London construction market, our company provides a wide range of professional building and renovation services. We specialise primarily in all types of tiling work — whether for bathrooms, kitchens, gardens, or outdoor areas. In addition, we handle smaller tasks such as painting, repairs, and installations, as well as full-scale plumbing, electrical work, and complete refurbishments. We take great pride in our reliability, punctuality, and the high quality of our workmanship. Every project is carried out with exceptional attention to detail, ensuring cleanliness, precision, and a solid guarantee on all completed work. I’m are always happy to offer expert advice and support throughout the renovation process, including assistance with sourcing and delivering materials needed for the job. My works covers a wide range of projects — from full bathroom renovations to flooring, kitchen upgrades, exterior work, and bricklaying. Upon request, I can also provide client recommendations from previous projects to confirm the quality of service
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Latest review:
Kitchen Fitting- 19 Aug 2026
David did an excellent job of installing my kitchen. He went above and beyond to make sure the installation deadline I had was met, and was very helpful and professional. I would highly recommend him.
Simran
No reviews yet
Extension Builder in Lewisham
All types of work undertaken Loft conversions, extensions, full refurbishments Driveways and landscaping
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Clarke LDN Limited
No reviews yet
Extension Builder in Lewisham
The added value we bring is extra equity in your home. We aim to pay for ourselves with a wide range of services. There are countless builders out there, but very few of them will understand the residential property market as we do. As a property investor and developer myself, we stand out from the crowd. Whether you need a complete renovation, loft conversion, rear/side extension, or something else, contact us today to see the value for yourself.
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SharpEyeTradesmen
No reviews yet
Extension Builder in Lewisham
At SharpEyePlumbing, we understand how stressful plumbing problems can be, which is why we focus on quick response times, clear pricing, and friendly service. No job is too big or too small — we treat every home and customer with care and respect. Our goal is simple: to provide dependable plumbing services you can trust every time.
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k+c studio
Rating: 5 out of 5
Extension Builder in Lewisham
udrtzurtszesrtz
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Latest review:
CAD / Drawings- 5 Dec 2021
So far so good very helpful and would use her again very professional
Mega Co Group Ltd
Rating: 5 out of 5
Extension Builder in Lewisham
Mega Co Group Ltd is a professional brickwork and stonework company delivering high-quality workmanship across all aspects of masonry. We specialise in extensions, garden rooms, summer houses, new builds, and repointing for brick and stone properties. With a reliable and experienced team, we complete projects efficiently, safely, and to a high standard. We take pride in our attention to detail, clear communication, and leaving every site clean and tidy. Customer satisfaction and long-lasting results are at the heart of everything we do.
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Latest review:
Repointing- 24 Aug 2026
Anton. is very good and professional. I highly recommend him to everyone
HOME DESIGN 4 YOU LTD
Rating: 4.8 out of 5
Extension Builder in Lewisham
Working closely with our clients, Home Design 4 You provides a Single Point One-Stop, Innovative Architectural, Creative Interior - Bespoke Design, 3D Visualisation, Project management and Design & Build services for all types of residential development and Home Improvement projects.
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Latest review:
Extensions- 19 Jun 2016
Neno is a very warm-hearted and genuine person. He gives his 100% to the job. He is also very prompt when it comes to communication and is always available by phone/text/email. He has a vast experience and good technical know-how and produced excellent plans and drawings. His quotes were very reasonable and offer excellent value for your hard earned money. Having been his client, I am genuinely inclined to believe he is a person who would never "rip off" his clients. He is a man of his word and does what he says. However, Neno's honesty and confidence can be a bit blunt at times. He can be quite “direct” with his opinions and this may rub off some people the wrong way, e.g. your local Council Planning officer may be an a**hole, but if you "confront" him, he will definitely not make things any easier for you- nevertheless, Neno dealt with all the Council red tape and followed up the Planning Permission Application to its conclusion. We finally got permission for extending the property much less than what we had expected initially- apparently our local Council (Hillingdon) has its own set of Draconian conservative rules that we were unaware of- but we have postponed the actual project work due to a recent change in personal circumstances. Summary: Based on my personal experience, I would DEFINITELY RECOMMEND Neno as a bona fide Tradesman on MyBuilder.com.
Construct builders ltd
No reviews yet
Extension Builder in Lewisham
I cover all aspect of plastering trade: k rend , selicone rend, skimming , dot,dab over boarding etc and promise to keep ur property clean and tidy! If you want a flawless finish and a professional work contact me
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3.7

Top rated Extension Builders

Our Extension Builders in Lewisham, are rated 3.7 out of 5 based on 19 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Lewisham?

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

Find extension builders in Lewisham with MyBuilder

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

Step 2: Compare different extension builders in Lewisham

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

Step 3: Hire Lewisham extension builders with confidence

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

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

What to ask a Lewisham extension builder before hiring?

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

An extension builder in Lewisham 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 Lewisham 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 Lewisham?

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 Lewisham 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 Lewisham 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 Lewisham

Can an extension builder in Lewisham help with planning permission?

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

Many Lewisham 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 Lewisham help with materials and finishes?

Yes, most extension builders in Lewisham 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.