Extension Builders in Eltham

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

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Some of our top rated extension builders in Eltham

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Poynts Works Ltd
Rating: 5 out of 5
Extension Builder in Eltham
I'm an ARB Registered Architect with 18 years' experience designing residential extensions, renovations and conversions across London. I work directly with homeowners from the earliest ideas through planning permission, Building Regulations and, where required, construction on site. Every project begins by understanding how you want to live. Using sketches, 3D models and visualisations, we can explore different options together before you commit to building work, giving you confidence that the design is right for your home and your budget. Once the design is agreed, I prepare the detailed technical information needed for construction and remain closely involved throughout the build, helping resolve questions on site and ensuring the original design intent is delivered. If you're considering extending or renovating your home, I'd be happy to arrange a free initial conversation to discuss your ideas, the likely planning implications and the next steps.
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Latest review:
Architecture- 28 Aug 2018
Stephanie is very professional and her knowledge is exceptional. As her advise was good and timely, i was able to move on with my project. Hard to find an honest person like her and I highly recommend her.
PJ Builders
Rating: 5 out of 5
Extension Builder in Eltham
Over 30 years of history, in the Construction industry, working in both the Commercial & Domestic sectors. I work on recommendation and word of mouth and have many repeat customers and happy client's.
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Latest review:
Conversions - General- 26 Apr 2024
A veritable small nugget of gold amidst an enormous cascade of falling rocks.........Peter and his team were amazing....no fuss, no drama, no add-ons or extras, an honest job, at an honest price, by an honest man.
JM Building Service
Rating: 4.7 out of 5
Extension Builder in Eltham
Hi my name is Joe from JM Building Service and I would like the opportunity to come and have a look at any works you require my services for. I look forward to meeting you. Thank you.
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Latest review:
Bathroom Fitting- 14 Mar 2025
My previous bathroom fitters did a very bad job with the bathroom and cloakroom toilet and left it unfinished. I am so glad I went with JM Building service as Joe and Martin completely transformed both rooms. They rectified the previous fitters errors and completed the rooms. Joe didn’t just rush through the job to get it done quickly—he took his time, ensuring every detail was finished to a high standard. He worked meticulously, making adjustments until everything looked exactly as it should, rather than settling for ‘good enough.’ His dedication to quality and precision was evident throughout, and the end result speaks for itself. As well as being very good at what they do, they are friendly, reliable, trustworthy and hardworking. I have already booked them in for another job and requested a quote for another. I highly recommend JM Building services for their professionalism and craftsmanship.
Adam Slusarek
No reviews yet
Extension Builder in Eltham
Hi,I’m on this business just in London 15 years. I’m managing projects as also providing work as general builder,construction,roofing,carpentry,floor fittings,kitchen fittings,bathroom fittings, Painting & decorating,studwall partitions &drywall,plastering. Hope we can work for you in future. Regards. Ad
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NAIRO LTD
No reviews yet
Extension Builder in Eltham
From Planning to Completion We help homeowners and developers expand their living spaces and portfolios with high-quality construction, expert craftsmanship and fully comprehensive turnkey managment. Our Expertise: ✅ Loft Conversions – Maximise unused space and add value to your home. ✅ Building Extensions – Seamlessly expand your living area with high-quality construction. ✅ HMOs – Convert properties into high-yield, compliant Houses in Multiple Occupation. ✅ New Builds – From foundation to finish, we bring new homes to life. Why Choose Us? ✔ Professional &amp; reliable team ✔ High-quality materials &amp; modern styles ✔ Tailored solutions to suit your vision Let us help you create more space with precision and expertise.
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Truly Served
Rating: 5 out of 5
Extension Builder in Eltham
We do all types of building work including extension,plumbing, electric,wood work etc. but our specialty is bathroom and kitchen fitting. We are passionate, hardworking, punctual and reasonable in price. We keep monitoring on all aspects and finishes of project up to end.
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Latest review:
Kitchen Fitting- 20 Dec 2025
Great service from the builder. He listened to everything that I wanted & provided really helpful advice. He completed the job to a great standard and am really happy with the results. I wanted new kitchen countertops and electric hob/sink and tap fitted instead of remodelling my whole kitchen. I also felt very safe with leaving him to work alone in my house. Would recommend and use again. Thank you!
Ali builder
Rating: 5 out of 5
Extension Builder in Eltham
Hey I go with the name of Ali builder! I been working in the building field for the last 20 years and have got many clients and every client I work for I make sure I do the 100 percent perfect !
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Latest review:
Mr Muhammad is a great guy with a lot of skills and he was refer to me by friend and he has done my work very nice and on time . Very professional man with great sense of hummer
CRI ltd
Rating: 5 out of 5
Extension Builder in Eltham
With over 40 years experience, CRI can handle any complex assignment. Cost reduction and goal achieving in a timely and efficient manner. We undertake in any of the following: - General house/garden maintenance - Building extensions - Install of insulation - Stud partition walls - Suspended, gridded ceilings - Renewal of plasterboard ceiling/walls - Downlighting and spotlights - Certified electrician - Painting and decorating
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Latest review:
Restoration & Refurbishment- 21 Jul 2025
Despite the fact that CRI was a new member on the app with very few reviews, Jon came across very professional and accommodating and priced the job swiftly and fairly. I took a pun and awarded CRI the job. It took circa 2weeks and during this time Jon and the team where exceptional. In order to catch up and meet deadlines they were more than happy to do full weekends and always left the site clean and tidy. During the works, the team always kept me in the loop with photo updates on whatapp and next steps. I would highly recommend CRI.
South London Builders C.M.K
No reviews yet
Extension Builder in Eltham
At SLB we design, build and maintain to all of our clients needs. After many years in the building trade I have acquired great knowledge of all building works, along with my great team and organisation we settle for nothing less than you getting your dream project. SLB 🧱
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F&N HOME IMPROVEMENT
Rating: 5 out of 5
Extension Builder in Eltham
Extension, loft conversion.Painting ,tiling ,roofing. Porches,kitchen, bathroom refurbishment etc
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Latest review:
Restoration & Refurbishment- 12 Dec 2021
Flamur did a great job on repairing, plastering and painting our damaged walls and ceilings. He also matched and replaced a wooden ledge which was damaged. He was very responsive, knew exactly what was needed to make a perfect finish and completed the works in a timely manner to a very high professional standard. He also helped source materials that we needed. We were very pleased with the outcome and would use him again. We couldn't recommend him highly enough.
JED BUILDERS LTD
Rating: 5 out of 5
Extension Builder in Eltham
A limited company established in 2016. More that 8 years experience in construction business. We undertake all building works, big or small, managing and looking after project so the client can have the best results possible.
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Latest review:
Kitchen Fitting- 14 Dec 2018
Very lovely and professional and clean. Very prompt/punctual and worked efficiently , will be using them again to do more work in my property. Definitely with recommend them to anyone ! 10/10 from me ! Good service delivery
London Builders & Decorators
Rating: 5 out of 5
Extension Builder in Eltham
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.
D.L.CONS LTD
Rating: 5 out of 5
Extension Builder in Eltham
Hi, I’m Dan, the owner of D.L.CONS LTD – a small, skilled, and reliable building company based in E9, London. With 25+ years of experience, I’ve pretty much done it all – and done it well. I specialize in bathroom and kitchen fitting, bricklaying, painting & decorating, and carpentry, and over the years, I’ve worked on everything from domestic extensions to shop renovations. Whether it's transforming a small bathroom or building an entire extension, my team and I focus on quality, precision, and attention to detail—because great craftsmanship speaks for itself. We mainly work in E9 and the surrounding high-end postcodes—Hackney, Victoria Park, London Fields,and Islington. If you're looking for top-quality workmanship with no shortcuts, I’d love to hear about your project. Let’s build something great together.
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Latest review:
Carpentry- 8 Apr 2026
I’m really happy with the work carried out. He came in to fix my steps after a previous builder had damaged them and left them unstable, and the difference is night and day. Everything now feels solid, secure and properly finished. He also fixed the skirting boards and installed my desk, all to a very high standard. What I really appreciated was how professional he was throughout and the advice he gave along the way, which showed real experience and care for the job. Overall, a really high-quality finish and a great attitude. I wouldn’t hesitate to recommend him.
Bansal interiors
Rating: 5 out of 5
Extension Builder in Eltham
Hi my name is Ranj, I have been designing, planning and installing interior/exterior solutions such as new kitchens, bathrooms, bedroom furniture, exterior surfaces, roofing etc. I also landscape design, plan and install I also have a fully skilled team who cover all types of general building maintenance including plasterer’s, plumbers (gas safe), electricians and labourers.
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Latest review:
Garden Maintenance- 10 Jul 2026
Ranj cleared my back garden, which was towering full of weeds/ nettles and our front drive. His is extremely good value for money. He removed all the garden waste too. I was so impressed with the work. Not one weed left behind. Everything was pristine. Excellent attention to detail. Super friendly service, super hard working and we were super pleased with how the back garden and front looked. Definitely recommend him.
Dpbrickwork
No reviews yet
Extension Builder in Eltham
We do extensions garden walls drainage pointing paveing etc been tradeing for 40 years +
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Catalin
No reviews yet
Extension Builder in Eltham
I am pleased to introduce myself as a small construction company. I am working in this field from over 10 years. I have a proven history of providing quality work and I am confident I can provide the same level of service to your project. I do all kinds of jobs from little extensions to variety of construction projects, so if you like to learn about the services or contact for a consultation I am look forward to hearing from you!
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Top rated Extension Builders

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

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

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

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

What are the hourly rates of extension builders in Eltham?

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

Find extension builders in Eltham with MyBuilder

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

Step 2: Compare different extension builders in Eltham

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

Step 3: Hire Eltham extension builders with confidence

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

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

What to ask a Eltham extension builder before hiring?

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

An extension builder in Eltham 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 Eltham 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 Eltham?

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 Eltham 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 Eltham 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 Eltham

Can an extension builder in Eltham help with planning permission?

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

Many Eltham 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 Eltham help with materials and finishes?

Yes, most extension builders in Eltham 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.