Extension Builders in High Wycombe

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (11 reviews)

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Some of our top rated extension builders in High Wycombe

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Rightmove Construction Ltd
Rating: 5 out of 5
Extension Builder in High Wycombe
As you will see our bespoke work talks for itself we specialise in bathrooms and design this is our passion. We also do building work such as Extensions , Loft Conversions, and Kitchen Installations. We strive to give the best customer satisfaction. With good punctually ensuring that sites are clean and tidy our work ethic means our customers experience minimal disruption and a seamless transition with our expertise many thanks Rightmove Construction LTD
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Latest review:
Tiling- 11 Nov 2023
Bally was on time and efficient throughout the work he did for me. The initial ask was to retile a bathroom but ended up saving me money by completing some carpentry work as well.Delivered the work to a high standard, would definitely use his services again and recommend to anyone looking for a friendly, quality builder.
ALFA QUALITY CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in High Wycombe
WELCOME TO ALFA QUALITY CONSTRUCTION LTD Expert Builders You Can Trust We are a team of experienced construction professionals offering top-notch services tailored to your needs. From small refurbishments to large projects, we deliver quality and reliability. Our expertise includes extensions, property maintenance, plumbing, electrical services, sustainable construction, wall tie replacements, and general building. We specialize in warehouse racking, mastic sealant, garage conversions, equestrian stables, concrete garages, agricultural buildings, cladding, core drilling, demolition, and foundations. Whether it’s garden studios, loft conversions, or fire and flood renovations, we bring unmatched craftsmanship. From concept to completion, we ensure durability and client satisfaction. Let us bring your vision to life with professionalism and sustainable practices.
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Latest review:
I thank Alfa Company for the work they did for me. Excellent service, on time and accurate work from the management and employees. I recommend them.
G and M Builders
No reviews yet
Extension Builder in High Wycombe
We are Constructionline affiliated company, we work with NIc approved and Gas Safe registered contractors .We are a family run company who has been working in partnership with Harrow Council for 10 years. We pride are self’s on offering an excellent professional service, from start to finish. We specialise in disabled wet rooms and luxury bathrooms. From extensions to new kitchen installation’s we have it covered, Boiler services and central heating installs
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Ss digging & building development limited
Rating: 4 out of 5
Extension Builder in High Wycombe
I’m a General construction builder ,I have 15 years experience to undertake Ground work ,New extension ,loft conversion ,summerhouses and all type of related construction work .
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Latest review:
Extensions- 22 May 2021
I was left in a mess by cowboy builders. I found Sukhvindsr Singh from mybuilders and then I had nothing to worry about. He completed the project with utmost responsibility from erecting heavy steals to all the way up to finish. I was amazed with the level of his skills and above all honesty. This was a massive 66sqm single storey extension and he put up structure, brickwork, fibreglass roof , underfloor heating , tiling,electric work . He even went beyond our agreement to do bits and pieces to make sure i donot get stressed out. I have given him another job in same property to do patio 88Sqm with porceline tiling. Feature wall prepared by him stood out . Highly recommended and i will be surprised if he does recieve similar feedback in his future jobs.
BUILDKINGSBUILDINGSERVICES LTD
Rating: 3 out of 5
Extension Builder in High Wycombe
"GUARANTEED TO BEAT ANY WRITTEN QUOTE".... what more can you want??? Examples of our work avail once you short list us. Build-Kings is a small team of skilled builders. We offer a full service meaning we can do extensions, loft conversions, renovations, kitchens, bathrooms, flooring, plumbing & electrical. We never cut corners and the quality of our work speaks for itself. Best builder for you -LOCAL -UPFRONT QUOTING -15 YEARS OF EXPERIENCE -GOOD TIME KEEPING -PERFECT REPUTATION
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Latest review:
Extensions- 28 Jun 2023
Kal has agreed to take extension work to my house. He took £1000 booking fee. After taking the booking fee he refused to take the job. When I asked him to refund the booking fee he send me invoice more than booking fee for attending the site twice for few hours. He refused to refund the booking fee. Giving him a job is a big risk.
Blue horse construction ltd
Rating: 5 out of 5
Extension Builder in High Wycombe
We are slough based company. We understand how important your home is to you and therefore we make sure our workplace is spotless. You can contact us for - New Build Extensions Refurbishment Kitchens & Bathrooms Garage or Loft General Building Works Driveways Roofing
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Latest review:
Bathroom Fitting- 21 Apr 2021
Exceptional work done!! So pleased with my new bathroom. Very professional guys, keeping the floor covered and house clean. They kept everything in order and kept us updated at all times. Work was done in substantial time. Highly recommend blue horse construction for any new renovations. Looking forward to using them again in the future.
Cebu Builders Ltd
Rating: 5 out of 5
Extension Builder in High Wycombe
Building works has always been my passion and that is what I do best. My mission is to provide every home the highest-quality as possible. I have graduated B.S. in Civil Engineering. I have a good track record since 2014 from being a builder to doing extension jobs, refurbishment and new bathrooms / fixtures. Not to mention outbuilding jobs, paving, kitchen construction and even re-wiring. I have completed Level 2 Electrician here in the UK. I can show you photos/videos for your reference. Interested? Feel free to contact us 7 days a week.
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Latest review:
Restoration & Refurbishment- 22 Jan 2025
Cebu builders was really good went out off his way and complete my bathroom repair at a good standard highly recommend
Triple-S Construction Ltd
Rating: 5 out of 5
Extension Builder in High Wycombe
When choosing a building team, you want to be confident your project is in safe hands. You want certainty the job will be done to a high standard and won’t drag on. You want clarity about the cost. You want to feel your investment was worth it. We’ve earned a reputation amongst our clients and within the construction industry, not only for the quality of our work, but also our integrity in business. First and foremost, we treat our clients fairly and always operate with honesty and transparency: it’s one of the reasons so many of them use us again and again. “We entrusted the complete renovation of our family home to Triple S and it was the best decision we could have made. They take genuine pride in their work and, most importantly, they stand by their word.”
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Latest review:
Extensions- 6 Sep 2017
Very professional and did a great job. can't be any happier with the final result. I'll definitely go back to them for any other building jobs in the future.
Gks transport ltd
Rating: 4.8 out of 5
Extension Builder in High Wycombe
Hi A professional people working with utmost care and professionalism
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Latest review:
Bathroom Fitting- 6 Dec 2025
Fixed a long running issue with the toilet. Great job, thank you
GA Building and Plastering
Rating: 5 out of 5
Extension Builder in High Wycombe
Hello, my name is Gary. GA Building and plastering has been established, in and around the Aylesbury and Buckinghamshire area, for over 30 years. We are a family business and cover all aspects of building work ranging from new builds to old properties. With the expertise of architects and engineers on hand. We have an excellent reputation and offer a very high standard of work from start to finish, offer competitive prices and are fully insured.
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Latest review:
Plastering- 23 Mar 2025
Gary did a great job and transformed the ceiling
Eagle Construction VS LTD
Rating: 5 out of 5
Extension Builder in High Wycombe
Hello, my name is Sorin and I enjoy working in construction and making my clients happy.
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Latest review:
Painting & Decorating- 18 Jul 2023
Brilliant job done. Very professional, would use Sorin again & definitely recommend. A very happy customer 🙂
Craftwork Construction
Rating: 5 out of 5
Extension Builder in High Wycombe
Craftwork is built on a 30+ year partnership working in West London and the surrounding area. we take on mostly building work but have subs for other trades.
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Latest review:
Conversions - General- 30 Aug 2018
We did not go ahead with this job as we did not purchase the property, however, Craig and his team phoned me and explained to me over the phone what is needed and provided me an estimate over the phone which is what I was looking for. This helped me and put in to context what I was dealing with. Thanks very much.
FF CONSTRUCTION
Rating: 4.7 out of 5
Extension Builder in High Wycombe
We at FF construction pride ourselves on our quality and professionalism in all areas of renovation and refurbishment. Including but not limited to- tiling screening, plumbing, carpentry, plastering, decorating, skimming and rendering expertise in bathroom renovations. We are able to undertake both internal and external work and complete it to the highest standards at competitive prices. The company is based on a wealth of experience and knowledge delivering the highest standards
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Latest review:
Bathroom Fitting- 14 Aug 2025
Wouldnt recommend. Uploaded pics tell the story how well the job was finished. Chips on the floor and random cuts in new skirtingboards. Cut the wrong end of the basin vanity. Also paid to have things removed which some were taken and some left. Charged me for silicone/adhesives but used my supplies instead. Left the place very messy, including silicone plastered all over new radiator which I spent ages cleaning. Within a week of completion massive toilet leak AGAIN which I paid a plumber to fix who said you obviously got a cowboy to do this job! Fabio's comments which really annoyed me, apparently I don't like men? Telling someone to do their job right is a problem! 2 day job finished in 3 due to late starts and early finishes!
GP Construction Services Ltd
Rating: 5 out of 5
Extension Builder in High Wycombe
New build, extensions, loft conversion, glazing, roofing, electrical and plumbing
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Latest review:
We recently bought flat to let and decided to do completely refurbish. We invited few quotations including Gurwinder. We shortlisted top 3 quotation and invited him for discussion. During the meeting he was very professional and full of ideas. So we decided to honour him. Work started as agree on time, during the Job we liked his ownership of the work and advising us on the very step of the decision. Although it would have been better if his communications were more punctual but it neither affect us nor delayed any work. Even after completion he has been very helpful if any issue arises ( nothing major).
D Tapping Building & Decorating Ltd
Rating: 5 out of 5
Extension Builder in High Wycombe
My name is Daniel and I am a relaible and hardworking person. I have worked in the building industry for 15 years of which 14 years I was employed by a local construction company I carry out all jobs to a high standard.
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Latest review:
Painting & Decorating- 10 Feb 2019
Excellent work could not fault
AJR Construction
Rating: 5 out of 5
Extension Builder in High Wycombe
AJR Construction is a local building company with over 10 years building experience undertaking renovations, extensions and new builds, as well as kitchens and carpentry.
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Latest review:
Extensions- 2 Aug 2022
I cannot recommend AJR Construction highly enough! From beginning to end Adam has been brilliant. The work that he and his team completed was delivered to an excellent standard but on top of the first rate workmanship Adam’s communication with us was great throughout. He helped to guide us through the process and practicalities of doing a big extension with understanding and patience which, for first time renovators, was invaluable. It was a pleasure having Adam and Dion at the house, I’d recommend them in a heartbeat and I wouldn’t hesitate to use them again.

3.9

Top rated Extension Builders

Our Extension Builders in High Wycombe, are rated 3.9 out of 5 based on 11 reviews from customers like you.

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

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 High Wycombe 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 High Wycombe who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in High Wycombe?

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

Find extension builders in High Wycombe with MyBuilder

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

Step 2: Compare different extension builders in High Wycombe

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

Step 3: Hire High Wycombe extension builders with confidence

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

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

What to ask a High Wycombe extension builder before hiring?

Before hiring an extension builder in High Wycombe or extension building company in High Wycombe, 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 High Wycombe?

An extension builder in High Wycombe 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 High Wycombe 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 High Wycombe?

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 High Wycombe 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 High Wycombe 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 High Wycombe

Can an extension builder in High Wycombe help with planning permission?

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

Many High Wycombe 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 High Wycombe help with materials and finishes?

Yes, most extension builders in High Wycombe 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.