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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Cammp
Rating: 5 out of 5
Extension Builder in Eltham
Welcome to KSG Comfort – Your Trusted Partner in Construction & Renovation Across the UK With over 10 years of experience in the construction and renovation industry, KSG Comfort has built a solid reputation for delivering high-quality craftsmanship and exceptional service. Our team is made up of highly skilled and specialized professionals, each dedicated to turning your vision into reality with precision and care. We understand that choosing the right company for your project is crucial. That’s why we invite you to explore our portfolio of completed works to see the quality we stand for. While this is a new account, our reputation speaks for itself – feel free to search for KSG Comfort on Google and discover more about our work and satisfied clients. Whether you are planning a home renovation, a full refurbishment, or a new build, KSG Comfort is here to make the process smooth, professional, and stress-free. Your comfort is our priority – let’s build your dream together. If you would like more information, please visit our website or find us on Google by searching our name (.com). Alternatively, you can request the link via private message.
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Latest review:
Very happy with the work. The painter was punctual, professional, and kept everything clean and tidy throughout the job. The finish is excellent, with great attention to detail. Communication was clear from start to finish. I would definitely recommend and use again.
MK1
Rating: 5 out of 5
Extension Builder in Eltham
We are a are a small quality builders based in sidcup.We pride ourselves with being conscientious and reliable. Over the last 25 years i have built up a team of quality tradesmen to complement my own skills to provide a complete refurbishment service . All work is guaranteed
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Latest review:
Used Mark and his team for a number of jobs in our home. These included garage conversion, internal wall removal as well as re-formating hallway space. Job completed to a high standard ahead of schedule. Excellent communication throughout and work done at a competitive rate. Have recommended to friends and family and would certainly use again for future projects.
Eduard Gjergji
Rating: 4.8 out of 5
Extension Builder in Eltham
All aspects of refurbishment - Plastering - Painting - Flooring - Tiling - Kitchen fitting - Bathroom fitting - Extensions - Roofing E.G Precision Ltd is fully registered and insured, more examples of work on T-I-K T-O-K
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Latest review:
Bathroom Fitting- 16 May 2026
Eduard and his team recently completed a full bathroom strip out and renovation for me and I couldn’t be happier with the result. From start to finish, Eduard was polite, friendly, professional and always punctual, with excellent communication throughout which made the whole process stress-free and reassuring. He and his team worked incredibly hard, showed great respect for my home and always cleaned and tidied up thoroughly at the end of each day. Whenever any issues arose, Eduard discussed them straight away and went out of his way to resolve everything properly and make sure I was happy at every stage. The finished bathroom looks fantastic and the workmanship is excellent. I wouldn’t hesitate to use Eduard again for future projects and would happily recommend him or provide a reference to any prospective customer.
TSO Building Services
Rating: 5 out of 5
Extension Builder in Eltham
Hi, we are a family business and have been renovating and maintaining properties for over 9 years. From changing sockets, hanging light fittings, hanging doors, painting and decorating (in&out)to full bathroom or kitchen installations and extensions we are here to help.
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Latest review:
Bathroom Fitting- 26 Jan 2019
Would certainly highly recommend! Trustworthy company I would gladly use again for other jobs. Keep to the quote. High quality job from start to finish, hard working guys who get the job done in great time! Had a new bathroom built in my large bedroom and tiled downstairs bathroom and kitchen. Happy with end product.
Ecorenderinghousesltd
Rating: 5 out of 5
Extension Builder in Eltham
Eco Rendering Houses Ltd are here to help with your rendering projects, regardless of the size. With a combined experience of over 20 years, our team can undertake all elements of façade protection systems. Our services include, but are not limited to External Wall Insulation, silicone render, breathable insulated render, damp proofing, loft conversion, extention, summer house, repointing etc.
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Latest review:
Plastering- 8 Jul 2024
I cannot recommend Alban and his team highly enough. Absolute professionals, polite and very tidy. Not the cheapest but certainly not the most expensive. You definitely get what you pay for and some. Will be using Alban again for sure….thank you for a wonderful job 👍
POLISH DECORATING SERVICES LTD
Rating: 4.9 out of 5
Extension Builder in Eltham
We are not the cheapest but we are Master Builders experienced in all aspects of building works including bespoke services. Dedicated team of craftsmen always deliver jobs to the highest standards. We provide full certification for any gas or electrical works. City&Guilds- N.V.Q., P.A.S.M.A. and I.P.A.F. Over 15 years of experience in the UK.
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Latest review:
Extensions- 11 May 2018
After a rogue builder left me with 18 (eighteen) structural issues. Lez and his crew came in transformed my failed extension into a masterpiece. All aspects of the job was done to the highest quality and utmost care and attention to detail was shown to building control needs. They cleaned up after every day and made sure the house was habitable, as I had to live there. Every aspect of the build, from the carpentry, plastering and tiling was first class and their recommend electrician and plumbers were from the same stock. Total professionals. My only regret is that I did not use this builder the first time. The prices were reasonable and even building control had good word to say about their work. Thanks Lez
Delta Alpha Building Services
Rating: 5 out of 5
Extension Builder in Eltham
Delta Alpha Building Services is a family run business with 35 years experience in domestic construction services. We undertake works from smaller jobs (eg. Door hanging) to large construction works (eg. Extensions and conversions).. All our tradesmen are fully qualified and insured. Free phone consultations and estimates, prompt reply and service. We treat your home as if it were our own.
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Latest review:
April 2025 Delta Alpha built a raised decking to the back of my garden. We were very happy with the work and would definitely use this company in the future.
Knight Building Services
Rating: 5 out of 5
Extension Builder in Eltham
I'm a builder who has spent many years in training to get my experience along with on site work. I cover all areas of the construction industry with a competitive price for a competitive market. I am hardworking and I aim to please. Customer satisfaction is number 1 priority.
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Latest review:
Joinery & Cabinet Making- 30 Jan 2025
Mark is a top guy. Listened to what we were after, came up with solutions, was punctual, clear in his communications and delivered exactly what we wanted. Excellent quality work, clean and tidy. Using again without hesitation.
D Building Ltd
Rating: 5 out of 5
Extension Builder in Eltham
D Building Ltd is a leader in Brickwork, Rendering and Plastering services. With more than 17 years of experience we offer the highest quality decorating, renovation and refurbishment services to domestic and commercial properties throughout Greater London
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Latest review:
Plastering- 17 Feb 2025
We had to renovate our living room completely and had the absolute best experience with David and his crew. From removing 2 chimneys, wallpaper, ceiling, flooring, to installing new ceiling, plastering, painting, and new flooring, David and his crew completed the whole lot in such good work. Was in communication with us the whole time, extended his advice and ideas on things, completed jobs that we did not even request out of kindess. Work completed was immaculate and to such high standard. Definitely recommend and will be contacting David for further jobs!
BUILD SAFE LTD
Rating: 5 out of 5
Extension Builder in Eltham
Hello, We are Build Safe ltd-professional Construction Company 20 years of experience. We are proud members of Federation of Master Builders! Providing a wide range of services: Design, planning, Structural calculations, all aspects of Building works- New builds , Extensions, Loft conversions, kitchen and bathroom fitting, Window installation,refurbishments, electrical, plumbing etc. 10 years warranty and, 1m public, 5m employers liability and 1 million indemnity insurance. Please get in contact for a free quote. Thank you! Build Safe ltd
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Latest review:
Very professional. We had quite a lot of work done. It was done in time as promised, and with great attention to detail and quality. Very happy with the results. Highly recommended.
O G Electrical
Rating: 5 out of 5
Extension Builder in Eltham
O G electrical is based in Belvedere and Part P registered with Napit and the Electric safety register. All electrical work undertaken, with 25 years knowledge and experience. Re wires , fuseboards , under floor heating , Cctv , lighting , fire alarms , garden and drive lights,commercial fit outs, 3 phase, extract fans all Electrical installs carried out. Installations to new build houses/apartments throughout London and Kent Inspection and testing Eicrs All work guaranteed.
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Latest review:
Electrical- 1 Dec 2020
Olly was cheerful even though confronted with an ancient wiring system and a difficult problem. He came back for a second day and sorted it. There was a callback which he sorted quickly and without complaint
DTS Builders Ltd
Rating: 5 out of 5
Extension Builder in Eltham
All aspects of brick and block and stone work, new builds, extensions garden walls. Patios brick repairs, pointing. & refurbishments 20 years experience.
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Latest review:
Bricklaying- 28 Apr 2019
Dritan and his team we professional and completed a job well done. From the beginning Dritan was easy to work with , very friendly and approachable team. Dritan was extremely helpful in making a few suggestions to improve the wall and prevent future damage. I’m very pleased with the finished works. I would highly recommend Dritan and dts builders. Well done guys was great to work with you.
Inspire Construction Solution LTD
Rating: 5 out of 5
Extension Builder in Eltham
We specialise in Loft conversion, House extension and all kinds of buildings works
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Latest review:
We did a lot of research ahead of our loft build, and spoke to customers of the companies we looked at. We were impressed with Toma and her team from the outset, especially in terms of clarity and communication. We sat down with the project team at the start and walked through the week-by-week plan for our build, then a whatsapp group and weekly meets meant we knew exactly what was happening throughout. Our endless questions were responded to swiftly. Additional optional trade-ups (eg top-hung windows, larger bathroom window etc) were discussed and explained with context, sound advice (and clear pricing where nec) but always still optional. Toma's communication with the teams also seemed strong and continuous, with materials always arriving in time and ahead of when needed, no down-days etc - and importantly, the teams all seemed happy and were just lovely people to have around. I realise with hindsight too that the team's care and workmanship really put them a cut above many others in my area and the project remained on schedule. I wouldn't hesitate to recommend ICS for the whole package and in fact we've also chosen to use them again for a kitchen extension.
Dmytro Dochynets
Rating: 5 out of 5
Extension Builder in Eltham
Experienced bricklayer. Skilled in brickwork, garden walls, fences and repair jobs. Reliable, tidy and delivering quality work on time.
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Latest review:
Bricklaying- 30 Oct 2025
Dmytro did fantastic job rebuilding garden wall in our landscaping project. Highly recommended
Deal Installations and Maintenance Ltd
Rating: 4.9 out of 5
Extension Builder in Eltham
We might deliver building services but we are actually into people business. Our company mission is to provide top quality building services to satisfy our customers needs. We are making ourselves available so everyone can take advantage of our top rated skills and customer satisfaction . You deserve the best and we are here to help. Safety first, then customer first. Experience will take care of the rest.
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Latest review:
Restoration & Refurbishment- 14 Jun 2020
Vasile Pavel and his team were brilliant so helpful efficient with great advice of what would look good for a best price. He did a house clearance for me a new bathroom and new kitchen as well S decorating and some electrical work. I highly recommend him.
A PROPERTY SERVICES & MANAGEMENT LTD
Rating: 5 out of 5
Extension Builder in Eltham
***We cover the national grid*** I have been in the property industry since I left school, a traditional handyman specialising in brickwork, from external walls to internal extensions, plastering, painting, floor work - kitchen, bathrooms electrical, plumbing, air cons, lighting, gardening, disability access ramps. I have a team, who each hold a vary of skills set that work together to deliver the very best standard. ***We cover the national grid*** - our price will include any travel that is necessary - we go where the work is - we have always worked off word of mouth through customers, As times are changing we are having to come online. our work ethics are, 'the work speaks for itself' We always aim to work with our customers and advise as best we can if it helps you then it helps us. We are new on this platform and aim to gain good reviews.
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Latest review:
Our driveway spotlight sensor stopped working - replacement spotlights, new stronger cable fitted, replacement driveway wall mount lights, disability ramp made and driveway washed. pretty straight forward. Sam bought the correct lights, extended cable and the sensor with his electrician from B&Q. Removed and replaced removed all the rubbish, respected our property gave the driveway a wash no hassle - left them to do their work and it was done. I would recommend using them they do what you want and how you want it - He does give you his opinion though up to you if you want to take it or not. happy to use them for further jobs

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.