Extension Builders in Keston

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 Keston

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DK Brickwork
Rating: 5 out of 5
Extension Builder in Keston
DK Brickwork is a team of fully qualified professional tradesmen who take a lot of pride in their work. We work with our clients to create the vision they have and produce the high standard of work that we have set for ourselves.
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Latest review:
Bricklaying- 31 Aug 2021
Dave was fast, efficient, and thorough. He fixed the wall to a high quality and it looks as if it was never damaged. Excellent and highly recommended.
Property3574
Rating: 5 out of 5
Extension Builder in Keston
i have been in the building industry since 1980. Carpentry & Joinery is not my only trade. Electrical, Plumbing, Locksmithing,Security Alarms, & General Maintenance. All my work is to a very high standard with a very good eye for detail.
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Latest review:
Electrical- 13 Jun 2017
Aksel came and inspect our dishwasher socket that wasn't working. It was a fairly straightforward job and he came on a short notice which we appreciated.
Upright Building Services ltd
Rating: 5 out of 5
Extension Builder in Keston
Hi, my names Sam, I am a multi trade builder and qualified carpenter. I have 12 years experience as I have been in the building industry since leaving school. I am the owner of Upright Building Services Ltd which specialises in Extensions, Loft Conversions, Renovations and everything in between. I pride myself in being a trustworthy and hard working tradesman with an eye for detail.
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Latest review:
Carpentry- 8 Feb 2021
Sam done a wonderful job of my doors for a very reasonable price as well !!! Definitely will use him in the future
Tee&Zee
Rating: 5 out of 5
Extension Builder in Keston
Hi, we are a reliable, efficient team who love what we do. With 8 years of experience in the building industry, we offer a various type of work, from Loft Conversion, Rear Extension, Side Extension, Full Refurb, Kitchens, Bathroom, Even As Small As Putting A Picture Frame On The Wall. We take pride in our work, and ensure the work is 10/10. We are on time, friendly and trust worthy. We are the team to choose!
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Latest review:
Kitchen Fitting- 1 Jan 2023
I have to say that Tyrone who carried the work out for is very professional and commendable. He was always on time and eager to get the work done. His attention to detail is simply quite impressive. Having completed the work i was rather surprised to learn that he called back the next day only to complete a very small detail that he forgot. A small detail that was not exactly noticeable, thus leaving us with satisfactory results. I’m certainly going to recommend their services to anyone who might require their services. Many thanks 👏👏👍
LC London Building services
Rating: 5 out of 5
Extension Builder in Keston
At LC London Construction We have a team of skilled and experienced tradespeople and construction experts in your area, providing a creative eye for detail on a plethora of property renovation projects. Our trustworthy and affordable service includes: Full Home Refurbishment and Renovation Flat Refurbishment and Renovation Refurbishment Projects of all Sizes Taken On Commercial Property Refurbishment and Renovation,Bathroom Renovation, Loft Conversions Home and Office Extensions
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Latest review:
Electrical- 16 Nov 2019
Lenny and his colleague communicated well and arrived before the set time with all the materials.Smooth transition from halogen to LED lights and also cleaned up afterwards.I also hired them back to install two dimmers as the LED light are very bright . Would hire again and can highly recommend Lenny and his colleague.
Ben the builder
Rating: 5 out of 5
Extension Builder in Keston
Extension Loft conversion Landscaping General building work
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Latest review:
Benny and his team rebuilt our bungalow to our architect's design. Complete internal reconfiguration, refurbishment and insulation (internal and external), extension, new bathrooms, kitchen; detached garage, outbuilding and landscaping. His pricing was very fair. His work outstanding. Very reliable, utterly trustworthy, courteous, very helpful and professional. Answered our prayers and cannot be recommended highly enough
VA BUILD LTD
Rating: 5 out of 5
Extension Builder in Keston
VABuild Limited has been providing building services to both private and commercial clients in London and surrounding areas since 2000. We have an unrivalled reputation for quality and reliability. We always focus to build strong relationships with our customers.
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Latest review:
Restoration & Refurbishment- 3 Apr 2016
Vidas and his team did a fantastic job with our property refurb project and I can't recommend him highly enough. He completely stripped out property back to brick and rebuilt if from the ground up. We had some quite particular requirements requiring the removal and creation of new partition walls and Vidas was able to accommodate and direct us in how we could address each requirement. We are very happy with the finish and have had many compliments from other tradesmen on the quality of the work. We did have some minor snagging after the project was complete but Vidas was very accommodating in coming back to rectify these issues. I would highly recommend Vidas and look forward to using him again in any future projects.
P.R GROUNDWORKS
Rating: 5 out of 5
Extension Builder in Keston
P.R GROUNDWORKS is a family run business, I’ve been working in the building trade for 20+ years, covering all aspects of groundwork, landscaping, foundations, underpinning, brickwork driveways, including drainage and pipe work. I also cover all tree surgery and stump removal. I strive to maintain excellent customer service and ensure my client is happy and regularly informed on any updates and progress of the work being carried out. I have recently been working with an ongoing contract at Hever castle resurfacing the main public car park, renewing public walk ways as well as building the new sand play area for the children. I take immense pride in my work and will endeavour to provide 100% customer satisfaction. I will always go above and beyond the clients expectations and will endeavour to bring your envision to reality. Please feel free to contact me should you require a free quotation or just some knowledge regarding specialist work.
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Latest review:
Extensions- 14 Mar 2024
We had the best experience with Paul and team from the beginning and would 100% recommend him for any job. From the beginning the communication was great, he gave a quote and then didn't chase us for an answer as there was a couple months in between before we confirmed. Once confirmed, he booked a date in. Tim and James turned up at 7.45am every morning, lovely guys who got on with the job and were always polite and friendly. They were also extremely clean and tied up everything as it was before they left. So happy with the finished job and definitely use again for any further work. Thanks Paul, Tim and James!
C & M BUILDERS
Rating: 5 out of 5
Extension Builder in Keston
all building and roofing works carried out, garden wall, drives, patios, extensions, new roof and repairs,
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Latest review:
Earlier this year, I was looking for a builder to erect a side extension and was given the details of Colin Richardson. He came highly recommended by various other people. He always arrived with a smile on his face and always at the time specified. The day to day work area was always cleaned at the end or the day, leaving it nice and tidy. I am very pleased with the work both Colin and Michael did and I would recommend them ti anyone looking for building work to be done.
London’s maintenance team Ltd
Rating: 5 out of 5
Extension Builder in Keston
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
Quote Builders Ltd
Rating: 5 out of 5
Extension Builder in Keston
We specialise in residential and commercial construction, refurbishment and restoration. We also provide handyman and access solutions. We have a team of 12 CIS registered and qualified workers. We work on excellence and look to provide homeowners and commercial business owners the best job possible up to building regulations standards every time at a very competitive price. Based in the southeast region we look to target South East England.
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Latest review:
James and his team of builders (quote Builders) gutted and fitted our bathroom. James helped us to choose fixtures and fittings ( which we were grateful for especially as the recomended shower we chose is AMAZING ) We were extremely impressed with his workmanship and found him and his team to be very professional, reliable and punctual. We have received great comments when family and friends visit and see our new bathroom, and we have recommended quote Builders to them. Thank you James and his team. Definitely using them to remodel our kitchen.
Miri zeneli
Rating: 4.9 out of 5
Extension Builder in Keston
With many happy and returning customers over the last 11 years, you can be sure of being well looked after by Miri Construction. My aim is to provide a stress free project, delivered in a manner that I am confident will exceed your expectations. I carry out all work myself and will be your single point of contact. My customers often comment that I am approachable and cheerful. I find that a positive attitude always helps projects run smoothly with good communication throughout.
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Latest review:
Plastering- 17 Jan 2025
Miri was great in completing the project with an excellent finish and a competitive quote. Thank you Miri.
SM GB Contractors
Rating: 4.9 out of 5
Extension Builder in Keston
SM General Building & Carpentry is a Trade company working in the building industry on small & large projects, including design-and-build. We have years of experience in combining carpentry and building construction. We are almost covering all aspects of the building & providing service to meet the required standards. By choosing us, we will focus on customer affordability & bring all options related to spending & Quality, sharing them with the customer to ensure they have options to choose from. If you would like more information, you can visit our website.
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Latest review:
Extensions- 17 Jul 2025
Great Job
Darren knowler
Rating: 5 out of 5
Extension Builder in Keston
I've got over 25 years experience in the building industry. From bricklaying to installing upvc products. I do fibreglass flat roofing aswell. I'm very good at what I do. I take care and consideration on every job I do. I provide a very high standard.
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Latest review:
Guttering- 11 Nov 2021
Darren was very professional , he did the job excellently. Am pleased.
Mario Services
Rating: 5 out of 5
Extension Builder in Keston
Mario & Alex Construction LTD specialise in construction and building services, complete property refurbishment, house extensions and loft conversions. Provides unmatched customer service. Our commitment to small,hudge integrity, providing the highest value and satisfied customers, has been the ingredient that has fueled our growth from the beginning. We ensure that all our work is professionally managed so that the result is of outstanding quality, cost-effective.
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Latest review:
Bathroom Fitting- 20 Jan 2023
We highly recommend Mario & his team. They fitted a new kitchen & bathroom to a really high standard within a short, timeframe. They work hard, are friendly, professional & honest, my neighbour even commented on how considerate they were! Upon first meeting Mario we were impressed by how organised he was. He arrived on time with the description we’d posted on my builder & went through it methodically. We had A LOT of questions! He answered all of them & didn’t rush us. We received a competitive quote within a day as promised. It included everything we discussed & he quickly answered our follow up questions. We wanted an accurate idea of the cost of electrical work & Mario arranged for his electrician to come & inspect/quote before we’d appointed Mario the job. Our kitchen & bathroom is complicated, with lots of difficult angles. Damp, unlevel floor, unlevel windows, a low ceiling were uncovered in the bathroom. Mario did well to identify solutions, giving us expert advice. Pipes were neatly chased into the wall. Underfloor heating & LVT, tiling, grouting & painting all done to a very professional finish. He kept us informed of progress, checked our preferences & was patient when we had supply delays, finding ways to ensure the job finished on time enabling us to move from our temporary accommodation back home in time for Christmas. He promptly fixed some minor issues after the job finished. We highly recommend Mario & would use him again.
Propertyxhub Limited
Rating: 5 out of 5
Extension Builder in Keston
An experienced building trade specialist team with all qualified professionals. From new build to small work, we are happy to help you honestly.
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Latest review:
Plumbing- 2 Jun 2026
Thank you for doing that for me just give me a shout. I will do thank you very much. Thank you very much. I had in my car. Thank you for fixing my shower now I can have a shower without giving the whole bathroom a shower when I want a shower and for showing me that you have fixed my shower I very much appreciate you taking the time to come and fix my shower I am eternally grateful

3.9

Top rated Extension Builders

Our Extension Builders in Keston, 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 Keston?

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

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

What are the hourly rates of extension builders in Keston?

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

Find extension builders in Keston with MyBuilder

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

Step 2: Compare different extension builders in Keston

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

Step 3: Hire Keston extension builders with confidence

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

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

What to ask a Keston extension builder before hiring?

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

An extension builder in Keston 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 Keston 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 Keston?

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 Keston 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 Keston 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 Keston

Can an extension builder in Keston help with planning permission?

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

Many Keston 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 Keston help with materials and finishes?

Yes, most extension builders in Keston 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.