Extension Builders in Penge

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 Penge

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Home Design & Build
Rating: 5 out of 5
Extension Builder in Penge
Tooled with years of experience, we undertake design & reconfiguration of builds; adding value to your home or business. Working closely with you; we create a bespoke, quality finish within your budget & affordability. Delivering a high standard of skill & integrity of craftsmanship we are proud off
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Latest review:
Kitchen Fitting- 24 Jun 2025
Lalli and her team were all very professional, communicative, and detail oriented helping us create a new kitchen and bathroom that we love, not to mention, on schedule! We would highly recommend Home Design and Build and hope to work with then again in the future.
JWC&BS LTD
Rating: 5 out of 5
Extension Builder in Penge
I am fully qualified carpenter with NVQ qualifications. I’ve had experience working with listed building, extensions , loft extension, roofing , first fix , second fix carpentry , kitchens and flooring
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Latest review:
Decking- 30 May 2020
Great work. Nice and tidy. Would use again for general carpentry needs.
KML BUILDING (UK) ltd
Rating: 4.5 out of 5
Extension Builder in Penge
KML is a Central London-based building company with a strong reputation for quality, reliability, and attention to detail. We specialise in home extensions, refurbishments, HMO conversions, and general building works — providing tailored solutions for both residential and commercial clients. As a small, hands-on team, we offer a personal service from start to finish, ensuring every project meets the highest standards of craftsmanship and compliance.
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Latest review:
Bathroom Fitting- 13 Oct 2025
Camilo was supposed to meet me today to give me a quote. He missed our appointment without any notification. I am not here to chase people to do their job. The job will be advertised again, as he was not hired.
Rose Projects
Rating: 5 out of 5
Extension Builder in Penge
At Rose Projects we build to your lifestyle, A family run business with a fresh approach covering all aspects of Construction. Craftsmanship is our main focus always maintaining high standards. We work along side Architects, Engineers and Designers We have an organised team of qualified tradesmen which take pride in there work with projects completed on time and budget. References available upon request, Come and see previous projects for ideas.
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Latest review:
Extensions- 26 Sep 2022
Excellent work with the garden office/gym. Finished really nicely and exactly what we were looking for. Took quite a while but well worth the wait. We requested a labour quote and worked with Alf on a receipts basis for material and other costs. This worked out perfectly for us both. Alf's initial estimate of the materials cost was virtually spot on, which is very impressive given the inflation rate for building materials. Thanks again for all your hard work!
Upward Trend Home Improvements
No reviews yet
Extension Builder in Penge
General building work Brickwork. Foundations. Roofing. Kitchen Installation. Bathroom Installation. Wood Burning Stove Installation Boiler Installation. Central Heating Installation. Tiling. Basement Conversions.
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Aycon Construction Ltd
No reviews yet
Extension Builder in Penge
Aycon Construction Ltd was established in 2008 as a general building contractor. The company is run by a qualified civil engineer having 32 years vast experience in construction. The company has diversified experience in building and civil works comprising new build, extensions, loft conversions, refurbishment and drainage works. We undertake all types of maintenance works including plumbing and drainage, electrical, brickworks, carpentry, roofing, bathroom, kitchen, tiling and flooring.
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HUB Property
No reviews yet
Extension Builder in Penge
We provide architect drawings and party wall services. Our expertise, attention to detail, and client-centric approach set us apart. Contact us for accurate and compliant drawings and expert guidance in resolving party wall matters. Satisfaction, professionalism, and integrity are our priorities.
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Pari Warren
No reviews yet
Extension Builder in Penge
Warrens Property Developments We are a small family run business which specialises in high end property refurbishment, loft conversions and extensions. Offering an honest reliable service and excellent results.
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easy solution
Rating: 5 out of 5
Extension Builder in Penge
At A&W Construction and Renovation Ltd, we have over 15years of experience providing high-quality construction and renovation services across the London. We are dedicated to delivering exceptional results, no matter the size or complexity of the project. Our team offers a 24-hour emergency call-out service, ensuring that we are always available to meet your needs at any time. We work closely with our customers to ensure every project is completed to the highest standards. Our goal is to make sure that every customer is fully satisfied with the results, providing competitive quotes and reliable workmanship. We offer a wide range of services to enhance and maintain your property. From installing brand-new kitchens and bathrooms to converting lofts and building extensions, we provide solutions that add value and functionality to your home. We also provide essential services such as plumbing and electrical work, covering everything from boiler installations to electrical rewiring. Our carpentry and maintenance services ensure that any woodwork or general repairs are handled with precision and care. If you're looking for trusted and reliable builders for your next project feel free to get in touch with us today.
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Latest review:
Tiling- 21 Jun 2021
Great professional and reliable service from Easy Solution. Waqar called me ASAP and arranged to see my bathroom. He came within 1 hour to see the job and gave me an affordable and good quote. He was available to start work immediately. Waqar also suggested the colour of tiles that would suit the bathroom and made some very good recommendations on where i could purchase them at a decent price. My work was done to a high standards. Tiles are neatly put together with grout and they are looking amazing! I had some many relatives comment on them and i have recommended Waqar to them all as i was so satisfied with his service and professionalism in my property. I will be using him always in future. Thanks.
Marangoni Construction
Rating: 5 out of 5
Extension Builder in Penge
We are dedicated to building quality projects and our wealth of experience and efficient working methods mean that with us on board, you get more - more choice, more cost savings and a quicker turnaround.We are a hard workers,good organiser,sociable,loyality,honest
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Latest review:
Hard working and experienced professional with large experience in mid-sized residential projects. Dyone always tries to go the extra mile to please the client. He has worked in several European countries giving him access to better knowledge of materials and suppliers. Great to work with.
Dos kapas
No reviews yet
Extension Builder in Penge
New building , extensions, remodelation , maintenance, bathroom refurbishment, kitchen refurbishment painting and decorating plumbling restouration etc
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Denis & Kelvin LTD
Rating: 5 out of 5
Extension Builder in Penge
Hello im Fredi, I am a experieced builder and would like to deliver quality work to all my customers.
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Latest review:
Restoration & Refurbishment- 26 May 2024
Great work, punctual and informative. Would hire again for sure.
Building & Loft Design Services
No reviews yet
Extension Builder in Penge
Experienced civil and structural engineer who has prepared planning application plans, Building regulation plans, structural calculations and submitted"full plans" applications to council building control to be check for Building regulation compliance councils have issued full plans “Approval Certificate". WE ALSO PROVIDE ON SITE BUILDING CONSTRUCTION TECHNICAL INFORMATION SUPPORT to home owners for them to manager their construction project and save up to 40% ...£1000S.See Below
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N M W BUILDING SERVICES LTD
Rating: 5 out of 5
Extension Builder in Penge
NMW Building Services provides a high quality service with only the aim for great customer satisfaction. We are a small but highly reputable company; skilled and qualified in all aspects of building work. We always respect clients wishes and work hard with them to achieve their desired results.
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Latest review:
Extensions- 20 Jun 2025
Neil is simply brilliant; a great communicator, honestly priced and great at his job. We have been so pleased with our extension and would not hesitate in recommending Neil to anyone who is unsure who to trust.
Geometric Renovation Ltd
Rating: 5 out of 5
Extension Builder in Penge
Geometric Renovation is a London based renovation and construction company specializing in high quality renovations, maintenance and remodelling services with affordable price and highest standards. We also cover the Greater London area.
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Latest review:
Painting & Decorating- 6 Aug 2022
Good Job, friendly and helpful
Home Renovations Ltd
Rating: 5 out of 5
Extension Builder in Penge
We're a building company specializing in house extensions, loft conversions and refurbishments. Our clients come from New Malden, where we're based, but also surrounding areas. The vast industry experience enables us to provide valuable advice, professional services and individual approach, benefiting our customers. As we understand trust and credibility are crucial when undertaking such projects, we arrange viewings and provide customers with references and photos of our most recent projects.
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Latest review:
Extensions- 24 Jun 2017
We had a large piece of work done by Johan and his team. It was a 4m single storey rear extension with new kitchen installation, converting the old kitchen into a downstairs bathroom and utility room, plus other bits and bobs like new boiler, rear patio. We got quotes from a few builders, Home Renovations weren't the cheapest, they were actually towards the higher end. But we went and saw their previous work and spoke to some of their other clients. The work was done to a high quality and the clients seemed to be happy so we decided to go with them. Johan's team are very hard working, professional and polite. Pawel and his team of builders, bricklayers, plumbers, electricians, etc. would turn up before 8am and finish at 6pm working solidly throughout the day. There is Magda as the project manager who keeps you in the loop, and answers any of your questions (which we had many). There is Michaela on the finance side who keeps you up to date with the budget. Our budget went over by 5% with "variations" (extra work or materials) but it was always communicated why and the work wasn't done without our approval. Pawel would give his recommendations but the final word would always be ours. But these things can add up. Overall we were very happy with the build, it was done to a very high standard. They also finished it before time. They said it would take 12 weeks in fact they finished it in 10 weeks which was amazing as you would normally expect these things to go over.

3.9

Top rated Extension Builders

Our Extension Builders in Penge, are rated 3.9 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 Penge?

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

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

What are the hourly rates of extension builders in Penge?

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

Find extension builders in Penge with MyBuilder

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

Step 2: Compare different extension builders in Penge

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

Step 3: Hire Penge extension builders with confidence

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

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

What to ask a Penge extension builder before hiring?

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

An extension builder in Penge 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 Penge 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 Penge?

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 Penge 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 Penge 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 Penge

Can an extension builder in Penge help with planning permission?

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

Many Penge 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 Penge help with materials and finishes?

Yes, most extension builders in Penge 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.