Extension Builders in New 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 New Eltham

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Best London Lofts
Rating: 5 out of 5
Extension Builder in New Eltham
At Best London Lofts Ltd., we believe that your project should be kept as simple and straightforward as possible, regardless of how complex the task may seem. We have over 10 years combined experience between us in building loft conversions, garages, extensions, roofing and general building.
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Latest review:
Loft Conversion- 4 May 2025
Great service provided by this company, top quality work!! Highly recommended!
moonlight builders ltd
Rating: 5 out of 5
Extension Builder in New Eltham
My name is Josh and I build from the ground through to the roof. All domestic and commercial builds covered with guarantee. Our service is second to none we value and take pride in what we do to complete all details finely. We have been building and refurbing now for many years, timekeeping is key. Friendly and most importantly trustworthy. We are highly passionate in what we do, so if your looking for a difference, a job which brings a smile and a warm heart with a professional finish.
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Latest review:
Bathroom Fitting- 12 Jan 2023
Very nice and kindly man
Harley home improvements limited
Rating: 5 out of 5
Extension Builder in New Eltham
Harley Home Improvements Ltd. A property development company with over 20 years of experience. We cover all types of works: Extensions Loft conversions Garage conversions Kitchens Bathrooms Flooring Windows, Doors & Conservatories Patios & Decking We offer a friendly and professional service. We pride ourselves on our standard of work. References and viewing of our previous work is offered to all our future customers. Signed contracts are put in place on all ours jobs.
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Latest review:
Kitchen Fitting- 7 Apr 2021
Jack and Luke helped us to install our kitchen last week and they did a brilliant job. We are so happy with the end result and it has been a pleasure working with them. From the first contact, they have been reliable and polite. I would recommend working with them anytime!
Dan Carter
Rating: 5 out of 5
Extension Builder in New Eltham
Carter & co property improvements Ltd All building works undertaken Maintenance services available Kitchens supplied and fitted Bathrooms
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Latest review:
Tiling- 15 Nov 2024
Dan and his team were excellent. Very friendly and professional. Great communication and they went above and beyond to help us with lots of little bits that cropped up along the way. Would definitely recommend!
Maven Heating Ltd
Rating: 4.4 out of 5
Extension Builder in New Eltham
We specialise in Gas heating & plumbing Boiler installation Unvented hot water cylinder Underfloor heating Full central heating installation We will beat any genuine gas safe engineer price.
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Latest review:
Gas Work- 12 May 2018
Great price and quality
callisto homes
No reviews yet
Extension Builder in New Eltham
Priding ourselves on our ability to not only meet, but to exceed project deadlines, whilst focusing a Partnering Approach and Consistent Quality we still aim to present solutions to improve our clients overall build experience . Undertaking New build, refurbishment and extension works, in house surveyors, Project managers and technical support your in safe hands with Callisto
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CosyAmbient construct
Rating: 5 out of 5
Extension Builder in New Eltham
Built on experience, reliability, and professionalism, we are a trusted heating company dedicated to keeping homes and businesses warm all year round. We pride ourselves on delivering expert heating solutions, exceptional workmanship, and a dependable service that customers can rely on. From installations to repairs and ongoing maintenance, our commitment to quality and customer satisfaction is at the heart of everything we do.
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Latest review:
Gas Work- 10 Jun 2026
Did a great job very pleased and definitely would recommend his services
London’s maintenance team Ltd
Rating: 5 out of 5
Extension Builder in New Eltham
Established in 2014, we are a team of trustworthy, friendly, and fully trained tradesmen dedicated to handling all your maintenance needs—whether domestic or commercial. No job is too big or too small, and every project receives our full attention and commitment. With nearly a decade of experience, we ensure that your requirements are met in a prompt, efficient, and friendly manner. We pride ourselves on offering competitive rates, so please feel free to reach out for a free, no-obligation quote.
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Latest review:
Plumbing- 18 May 2026
Really good, no issues. Flexible on issues that arose on site. The actual issue required far more work but they were able to complete what I needed done for a bathroom to be stripped out. Really good would use again
KEVIN CONSTRUCTION SOLUTIONS LIMITED
Rating: 5 out of 5
Extension Builder in New Eltham
Kevin Construction is a London-based, well-organised construction company specialising in large-scale developments alongside leading UK firms. We offer a full suite of services—from extensions and conversions to structural alterations and landscaping. With a dedicated team, digital management tools, and a focus on quality, we guide every project from planning to successful completion.
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Latest review:
Fencing- 13 May 2026
Kevin turned up on time and did a solid job on my fence. Would use again
MM Projects Ltd.
No reviews yet
Extension Builder in New Eltham
Lofts, conversions or renovations. Whichever service you choose from MM Projects, please be assured that we are fully trained to respect the environment we work within. All Commercial and Domestic Work is undertaken – No job is too big or small. We offer Free Quotes and advice to all our customers. We offer Call Outs to all our customers. Emergency work is undertaken, making sure help is at hand just when you need it. All work is fully guaranteed.
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Michael
No reviews yet
Extension Builder in New Eltham
My name is michael and I specialize in bathrooms fitting and kitchen fitting.
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Chestnut Building & Property Maintenance Ltd
No reviews yet
Extension Builder in New Eltham
Specialists in property refurbishments and maintenance, General building work including extensions, loft conversions, kitchen’s & bathrooms, full redecorations. Choose our building company for peace of mind and exceptional results. We’re fully insured, protecting you and your project from any unforeseen issues. Our team consists of highly qualified professionals with years of training and expertise, ensuring top-quality workmanship on every job We have a proven track record of successful projects and satisfied clients across residential and commercial builds. We pride ourselves on reliability, clear communication, and delivering on time and within budget. From renovations to new constructions, we use premium materials and innovative techniques for durable, beautiful outcomes. Customer satisfaction is our priority – read our glowing reviews! Trust us to bring your vision to life safely, professionally, and efficiently. Contact us today!
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Rucky
No reviews yet
Extension Builder in New Eltham
Welcome to Rucky Construction, where we turn your dreams into reality! With decades of experience and a commitment to excellence, we specialize in delivering top-notch construction services tailored to your needs. Whether it's residential, commercial, or industrial projects, we bring expertise, quality craftsmanship, and a customer-centric approach to every job. Let's build something amazing together
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Planetium Construction Ltd
Rating: 4.5 out of 5
Extension Builder in New Eltham
Im Adrian based on South West London and surrounding area ,Planetium Construction Ltd Will be your favourite .We have a trusted, friendly and professional team of tradesman with +10 years experience. Our aim is to provide on time full property maintenance and refurbishment to a very high standard at a competitive price ensuring our customers are completely satisfied.
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Latest review:
Bathroom Fitting- 2 Jan 2025
Extremely Disappinted with Planetium Construction- I hired Planetium for a 59k renovation job. Initially, the workmanship was acceptable only because I supervised closely and had them redo substandard work multiple times. However, before the job has been complete, I discovered already a roof leak in the master bedroom, direcly under the newly renovated bathroom. Despite my repeated requests, Planetium refused to take responsiblity or fix the issue. Just telling me need additional charges for the work. Worst still, Adrian the owner, demanded I pay the final balance of 1840 before they would address the GF heating which stopped working after they installed the new controller. When I reasonably refused to pay before they complete the job , Adrian swore at me over the phone the most offensive language. Furthermore, they promised to replace a new Miele microwave for the one they damaged during installation but now just walked away. Leaving me unresolved issues and additional repair cost!
RJS Innovative Building Ltd
Rating: 5 out of 5
Extension Builder in New Eltham
RJS Innovative Building looks for new designs and technologies available to give our clients the best solutions. We are happy to look at any project. We provide extensive knowledge on interior/exterior refurbishment, extensions/loft conversions, bathroom redesigns/installations, kitchen redesign/installations and revitalising property period features. We have connections with kitchen, tile, natural stone manufacturers FOLLOW AND SEE OUR WORK ON INSTAGRAM. @rjsinnovativebuilding
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Latest review:
Restoration & Refurbishment- 9 Sep 2021
The original job for a bathroom renovation turned into a much bigger job. Raphael and his team ended up helping design and renovate the bathroom, bedroom, living room and hallway. The team helped us source all the materials including underfloor heating and an incredibly intricate mosaic tiled floor in the hallway. They provided practical advise about what was best for the space, what would work within our budget and what would be easy to live with. For example, the team installed underfloor heating in the living room using wood effect herringbone ceramic tiles which would help get the maximum efficiency out of the underfloor heating whilst giving us the wooden flooring look we desired. Raphael and the team were excellent throughout delivering high quality work and we were more than happy with the final results. I would highly recommend Raph and his team.
Ncc maintenance ltd
Rating: 5 out of 5
Extension Builder in New Eltham
We made, electricity, plumbing, landscaping, building renovation, carpenter, tiling and paving
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Latest review:
Carpentry- 13 Jun 2022
Highly skilled and excellent work.

Top rated Extension Builders

Our Extension Builders in New 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 New 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 New 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 New Eltham who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in New Eltham?

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

Find extension builders in New Eltham with MyBuilder

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

Step 2: Compare different extension builders in New Eltham

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

Step 3: Hire New Eltham extension builders with confidence

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

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

What to ask a New Eltham extension builder before hiring?

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

An extension builder in New 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 New 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 New 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 New 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 New 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 New Eltham

Can an extension builder in New Eltham help with planning permission?

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

Many New 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 New Eltham help with materials and finishes?

Yes, most extension builders in New 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.