Extension Builders in Kennington

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in Kennington

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Sukhvir
No reviews yet
Extension Builder in Kennington
Bathroom,tiles,plaster, extension, new build,
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G Iancu Construction
Rating: 5 out of 5
Extension Builder in Kennington
At G Iancu Construction Ltd there is no work to small or to big, we pride ourselves in helping and meeting our customers requests with always best results .
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Latest review:
Kitchen Fitting- 4 Feb 2025
Thank you for doing a fantastic job fitting our new kitchen. Georgian worked quickly and efficiently and gave great recommendations on how to stay within our budget. Thanks again for a great job!
Lto construction
Rating: 5 out of 5
Extension Builder in Kennington
We are a family run building company with years of experience. We fully commit ourselves to each and every project and try our hardest to exceed our clients expectations.
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Latest review:
Bricklaying- 23 Oct 2018
Tony and his team were phenomenal! Professional, courteous, reliable, tidy and quick. Tony's communication throughout the build was consistent, clear and precise. Tony really listened to me throughout the process; provided advice and options but most of all completed the project the way I needed it. The whole build went exceptionally smoothly, was finished ahead of schedule and on budget. Tony's workmanship is excellent and the final finish spot on. I was really worried about finding the right builder for my project... I simply could not have found better. I got several quotes from different providers and Tony's represented the best value for money. I highly recommend Lto builders, you will not be disappointed.
Ivor
Rating: 5 out of 5
Extension Builder in Kennington
refurbishment,rear &side extensions,loft conversions+all the 2nd fix internall works-kitchen,plumbing,electrical,drainage,tilling,glazing,rendering,plastering,painting
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Latest review:
LargeGround floor extension, conversion of a bedroom to second bathroom, loft conversion, front garden paving , rear garden natural stone fitting, full refurbished of 5 bedroom house, 2 bathrooms, 2 living rooms and office, 1 large garden shed builded
ONIT MAINTENANCE LTD
New on MyBuilder
Extension Builder in Kennington
Onit Maintenance is a reliable, professional maintenance company serving London and the surrounding areas. We take pride in delivering high-quality workmanship, honest advice, and excellent customer service on every job, no matter the size. Our team provides a wide range of property maintenance services for homeowners, landlords, letting agents, and businesses, including plumbing repairs, electrical work, carpentry, painting & decorating, flooring, tiling, kitchen and bathroom installations, furniture assembly, TV wall mounting, door & lock repairs, gutter cleaning, fencing, general handyman services, and emergency repairs. We believe in doing the job properly the first time, keeping our work area clean and tidy, and communicating clearly throughout every project. We are fully insured and committed to providing reliable, punctual, and cost-effective solutions with transparent pricing. Whether you need a small repair or a larger property improvement project, Onit Maintenance Services is ready to help. One Company. Every Trade.
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Construction Worx Ltd
Rating: 5 out of 5
Extension Builder in Kennington
We come with many years experience and are highly recommended for loft conversions and extensions. Viewings on previous works can be arranged. We look forward to speaking to you and creating your dream home.
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Latest review:
Tom fit a new bathroom for us. He was very professional and did a great job. Very polite and clean builder (didn’t leave any mess!)
DUMITRU HUJA
Rating: 5 out of 5
Extension Builder in Kennington
Extensions loft conversation ,refurbishment,bathroom fitting,kitchen fitting,electrical and plumbing
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Latest review:
Kitchen Fitting- 17 Nov 2025
We recently had our kitchen refurbished by Dumitru, and we couldn’t be happier with how everything turned out. He’s one of those rare builders who combines professionalism with real care for the details. He worked efficiently, kept the place tidy throughout the project, and always cleaned up after himself — which honestly made such a difference when living through a renovation. What I appreciated most was how supportive he was when it came to choosing the right materials. He guided us through the options without ever pushing, and his advice proved spot-on. The final result is exactly what we hoped for and more. If you’re looking for someone reliable, skilled, and easy to work with, I totally recommend Dumitru P.S. For anyone curious about the scope of the work: Dumitru changed our worktop, removed the old tiles and redid the flooring with laminate, installed a new cooker and hob, fitted a new sink, repaired the walls after the new boiler went in, and repainted everything. Top work
Switch Electric Services Limited
Rating: 4.9 out of 5
Extension Builder in Kennington
A fully qualified electrician is a highly skilled professional equipped with comprehensive knowledge and expertise in all aspects of electrical work. With rigorous training and practical experience, they excel in designing, installing, and maintaining electrical systems with utmost precision and safety. From residential wiring to industrial installations, fully qualified electricians play a crucial role in powering the modern world, enabling progress, and illuminating our lives.
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Latest review:
Electrical- 9 May 2026
He was good on price for the first inspection and attended as agreed. However, I was less happy with the remedial quote. Several items quoted did not appear to be needed, while some items that did need attention were not included. Overall, fine for the inspection, but I would have preferred a more accurate and practical quote for the follow-up work.
LW Building Service
Rating: 5 out of 5
Extension Builder in Kennington
We are a medium sized company based in and around Croydon - specialising in a number of services ranging from full kitchen and living space extensions to bathroom and kitchen remodeling/refitting. As a company we are committed to the customer - ensuring the highest standard of professionalism and quality in our projects all of which are insured and compliant with all current building regulations.
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Latest review:
Kitchen Fitting- 7 Jan 2021
My experience with Leszek was entirely positive and I wholeheartedly recommend him. I had recently moved property (converted victorian flat) and required a new kitchen installed, shelves built, radiators replaced, painting throughout and some changes to electrics. The work was undertaken around October 2020. Leszek completed the work to a very high and professional standard and I am really happy with the end result. He was easy to get on with, good natured and commutative which made the whole process easy and less stressful for my first experience in home improvements. Leszek was always happy to answer all my questions and further explain the fine detail from electrics to kitchen installation. When small problems arose, he always had a couple options ready to discuss and called promptly to keep me up to date. The kitchen installation is perfect which also included tiling a backsplash. Lezek built some lovely selves in the recesses either side of my fireplace which look brilliant and very smart. The painter and his work was really professional and speedy. Snagging was dealt with and two neighbours independently and proactively commented that the work was done with minimal disturbance to them. From quote to completion it was all in all an excellent experience!
KG DESIGN & BUILD LTD
Rating: 5 out of 5
Extension Builder in Kennington
Hi I`m Kleida .I worked in Building industry for a while now and I have built a quite a knowledge on extensions loft conversion and refurbishment . I recently decided to start working for myself .I also have a very good working team with various knowledge on various stages of projects .
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Latest review:
Conversions - General- 8 Oct 2025
Gaz and his team were professional and hard working, and clear about what would happen when. The job is now finished to a good standard, and on time.
MM Tiling Services
Rating: 5 out of 5
Extension Builder in Kennington
Hi, I’m Michal, a professional bathroom fitter specialising in complete bathroom renovations from start to finish. I provide a fully managed service, covering everything from strip-out and preparation to plumbing, tiling, installation, and final finishing touches. Whether it’s a full bathroom refurbishment, a modern upgrade, or a bespoke design. I work cleanly, efficiently, and always aim to minimise disruption to your home. Clear communication, reliability, and customer satisfaction are at the heart of every project I take on. From small updates to full transformations, I ensure every bathroom is completed to the highest standard — on time and within budget. If you're looking for a skilled and dependable bathroom fitter, I’d be happy to help bring your vision to life. Recommendations from previous clients are available.
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Latest review:
Tiling- 11 Oct 2015
Tiled floor good job
Wilson
Rating: 5 out of 5
Extension Builder in Kennington
Serving the local community, we offer expert building services tailored to your home’s needs. Whether you are planning a modern loft conversion or a structural home renovation involving complex steelwork, our skilled team is here to help. We combine professional management with quality craftsmanship to turn your vision into a safe, beautiful reality, all while maintaining a tidy and respectful worksite
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Latest review:
Top-quality service from a very reliable building team. Wilson provided a clear, transparent quote with no hidden surprises, and completed the job right on schedule. The workmanship is excellent, and the team worked incredibly hard to get everything finished to a high standard. It’s hard to find builders this honest and skilled nowadays. 5 stars well deserved!
David's
No reviews yet
Extension Builder in Kennington
An experience trade person, great treat to all the customers also good worker and professional jobs with great results. Always like to give my customers good results with a good price
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Peter renovation
Rating: 3.7 out of 5
Extension Builder in Kennington
When you need a reliable builder for refurbish or extend your property our skilled team of experienced craftsmanship are ready to help you. We can provide a tailor-made service to suit your budget and requirements!
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Latest review:
Conversions - General- 6 Oct 2025
Peter and Dan did an excellent job from start to finish. They were professional, reliable, and easy to work with. The quality of their workmanship is top-notch, and they finished everything on time and to a high standard. I’m really pleased with the results and would highly recommend them.
Maxmar Construction Ltd
Rating: 4.7 out of 5
Extension Builder in Kennington
We are a company that pride ourselves on taking excellent care of the ‘whole project’, from design to completion. We can, on your behalf, manage your project, coordinating all the required trades to turn up as and when required, leaving you to get on with daily life. Your dream home could be closer than you think, allow us to turn your ideas into reality. My company has lots of experience working on many different projects, big or small! On a personal level I am a honest hardworking individual. I have a lot of experience in all aspects of building work. I am familiar with building regulations and used to dealing with building control officers from the various local authorities. I have a fully skilled team of builders who cover all types of general building maintenance including kitchen and bathroom fitters, plasterers, flooring specialists, painters and decorators. The company offers a fully insured and guaranteed comprehensive
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Latest review:
Conversions - General- 21 Jul 2013
Flooring & lighting to extension not completed appropriately and resulted in later problems.
ASM builders services limited
No reviews yet
Extension Builder in Kennington
Builders coordinate and work on the construction, repair, and renovation of homes and other buildings. They can also manage complete projects: painting, decorative painting, bathroom installation and removal, kitchen door floors, shelving, removing old, installing new fixtures, and repairs as desired by the customer. ASM builders adhere to safety rules ASM has experience in building quality and workmanship to satisfy the customer, and its prices are suitable for all
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4.1

Top rated Extension Builders

Our Extension Builders in Kennington, are rated 4.1 out of 5 based on 18 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Kennington?

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

Find extension builders in Kennington with MyBuilder

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

Step 2: Compare different extension builders in Kennington

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

Step 3: Hire Kennington extension builders with confidence

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

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

What to ask a Kennington extension builder before hiring?

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

An extension builder in Kennington 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 Kennington 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 Kennington?

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 Kennington 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 Kennington 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 Kennington

Can an extension builder in Kennington help with planning permission?

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

Many Kennington 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 Kennington help with materials and finishes?

Yes, most extension builders in Kennington 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.