Extension Builders in High Wycombe

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

Easily find verified High Wycombe Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in High Wycombe.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in High Wycombe

1253 Results

Sort by:

E3 Elements Ltd
No reviews yet
Extension Builder in High Wycombe
At E3 Elements, we specialize in all types of insulation work, including loft, cavity wall, and external wall insulation, ensuring your property is energy-efficient and comfortable year-round. Our experienced team delivers high-quality solutions that help you reduce energy bills and improve the overall comfort of your home or business. Alongside our insulation services, we also provide a wide range of general construction services, including renovations, repairs, plumbing, electrical work, and more. Whether it's a small repair or a large-scale project, we are committed to delivering professional, reliable, and affordable results. If you're looking for trusted contractors who put quality first, reach out to E3 Elements for a free consultation today!
Get in touch
DRYPSIAK
No reviews yet
Extension Builder in High Wycombe
Hi! My name is Viktor. My team and I are professional carpenters with over 7 years of experience in construction. We have received many great reviews from our customers. We specialize in both first and second fix carpentry, as well as any kind of woodwork. We take pride in delivering high-quality craftsmanship, always meeting deadlines and ensuring customer satisfaction. Whether it’s framing, flooring, doors, windows, or custom woodwork, we approach every project with precision and attention to detail. No job is too big or too small — we’re ready to help bring your vision to life.
Get in touch
RENNO HOMES LTD
No reviews yet
Extension Builder in High Wycombe
Welcome to Renno Homes, where we specialize in transforming living spaces to create the home of your dreams. Our dedicated team is committed to delivering high-quality renovations that reflect your unique style and needs. From concept to completion, we take pride in our attention to detail and our ability to handle every aspect of your project seamlessly. At Renno Homes, we prioritize customer satisfaction and strive to exceed your expectations. Whether you’re planning a small update or a complete transformation, we are here to guide you every step of the way. Contact us today for a consultation, and let’s bring your vision to life.
Get in touch
Perparim
Rating: 5 out of 5
Extension Builder in High Wycombe
An established bricklaying business offering all aspects of bricklaying services in and around London and the south east areas. We are reliable,friendly, professionals that take pride in our work and guarantee jobs to the highest standards
Get in touch
Latest review:
Great work, good communication skills very happy with the service Job got completed on the promised timescale
Goodman Global Ltd
No reviews yet
Extension Builder in High Wycombe
Please see the photos of works carried out by us. Our latest on going project as of 13/08/2021 is a throughout painting and refurbishment works of a 70 Bed nursing home in Chelmsford for our client Trust Care management in collaboration of NHS) Our lastest completed jobs: BEIRUT NIGHTS restaurant and sheesha bar at 187 Brent Crescent, Park Royal - see photos Also, completed in July 2021: EMAN - nail bar/beauty saloon at 4 Hermitage Parade, Ascot - see photos. Domestic projects are welcome.
Get in touch
Arisen Ltd
No reviews yet
Extension Builder in High Wycombe
Hi, I'm Edwart, Managing Director at Arisen Construction Ltd. We specialise in interior refurbishments, kitchen fitting, flooring, and general renovations. With a reliable team and a focus on detail, we aim to deliver quality workmanship and customer satisfaction in every project. Based in London and fully insured, we're here to bring your vision to life — efficiently, safely, and to a high standard.
Get in touch
NORTH STAR BUILDING SOLUTIONS LIMITED
Rating: 5 out of 5
Extension Builder in High Wycombe
Established in 2010 Northstar Building Solutions are a highly successful building company specializing in exceptional residential projects. As well as covering all aspects of new build and can deliver technical expertise to the latest building designs. We pride ourselves in completing a variety of projects including affordable and high specification housing, energy centres, hotels, restaurants, community centres and a church; we are experts at Extensions, Conversions.
Get in touch
Latest review:
Extensions- 2 Jan 2023
Excellent work overall. Builders were very professional, hardworking and friendly. Work was completed to a high standard and we were given updates throughout the entire process. Leo and his team were very responsive and resolved issues very quickly. Will 100% use North Star again for future work.
DMCA Building and Decorating
Rating: 5 out of 5
Extension Builder in High Wycombe
We are a family run business with over 25 years experience. We specialise in loft, single and two story extensions and refurbishments. We take pride in our work, making sure the customer comes first when it comes to quality and satisfaction. It is never about how fast one can execute a project but how competent it is carried out.
Get in touch
Latest review:
Extensions- 4 Jul 2017
David and Co Managed to turn things around for us following a previously botched extension by another builder. Davids a really pleasant person to have working for you and has a wealth of knowledge regarding construction. I wouldn't hesitate to hire him again for future works
fedora and sons
Rating: 4.4 out of 5
Extension Builder in High Wycombe
I have started working for myself in Europe for 10 years, came over to England with my family and have been working here for 11 years getting business from word of mouth. In my business I manage lots of sub contractors covering a wide range of trades which I have experience in too.
Get in touch
Latest review:
Painting & Decorating- 24 Feb 2020
Quite literally the worst tradesman I have ever worked within 25 years as a property developer! He came and quoted to paint my house (a good price I must say), little did I know that this meant he would spray everything that he can see, not prepare the surfaces by sanding them down or protects things. This included door handles, hinges, radiators, alarms sensors, tiles and my own furniture and cooking utensils. First time I confronted him about this he said that we would clean everything, and we agreed to carry own. However, it became apparent that we was doing the same as previously discussed. have paid hi 66% of what was agreed, I quickly realised that the damaged he has caused was going to cost me far more and I told him to leave. The next day he turned up at my house with his wife demanding the balance which I refused to give him, they were both shouting outside my house, threatening to call the police. I eventually agreed to pay the 50% of what was left, just so that they would leave. However, even once he had confirmed writing his acceptance of this, he walks over to me and threatened me one final time, saying that he will take me to court etc, there is god and he will see to me! I advise to stay away from this person, better to pay a little more and work with professionals who don't agree with one thing and do another. He paints using a spray, which means you can not touch anything up and he quite literally paints everything he sees!!
James Murdoch
Rating: 5 out of 5
Extension Builder in High Wycombe
Construction company with 27 years experience in the industry between us and a team of other qualified tradespeople necessary to undertake projects.We are new to this site so please ask us to provide you with reference from previous clients. We have experience in timber frame homes, apartment blocks, extensions, renovations and commercial works.We take great pride in our work and make sure every job is completed to the highest of standards on time and on budget. Our aim is your satisfaction.
Get in touch
Latest review:
Carpentry- 31 May 2017
Was really impressed with these guys. Helped me order the correct garden door and then went to pick up extra bits when the order didn't turn up correctly, for no extra cost and couldn't have been nicer about it, even though it was a pain for them. Really cheerful and helpful - nothing was too much trouble. Would use them again, for sure.
indrit gordoni
Rating: 4 out of 5
Extension Builder in High Wycombe
I am a builder with 20+ years of experience, which has allowed me to specialise in pretty much every field of the sector; from tiling to fitting kitchens and bathrooms to painting etc... I am very meticulous in every job I do and always try my very best to please costumers. What I believe makes me stand out from other tradespeople is that I acquired most of my experience in Italy which is where I lived before moving here 4 years ago. This has helped me achieve different techniques and skills.
Get in touch
Latest review:
Bathroom Fitting- 7 Oct 2022
Initially did a good job but then rushed the silcon round the bath/ shower that then leaked. Kept telling us he would fix it but after more than a month I gave up and fixed it myself. Shame really, another tradesman that is fine until things go wrong!
Civiltech
No reviews yet
Extension Builder in High Wycombe
We pride ourselves for delivering work collaboratively to a high standard, in the agreed time frame and budget with full transparency and safely.
Get in touch
LZ Total Interiors Solutions Ltd
Rating: 4.6 out of 5
Extension Builder in High Wycombe
We specialize in commercial and domestic buildings refurbishment. We do absolutely everything interior, starts from maintenance till fully refurbishment including plumbing, electric work, partitioning, suspended ceiling, plastering and much more.
Get in touch
Latest review:
Bathroom Fitting- 24 Feb 2026
Lukas made our job a priority and fitted us in promptly. Lukas was helpful with suggestions that made our small space fit for purpose for my husband's needs. Lukas is very multi-skilled. We found Lukas to be reliable, friendly, and Hardworking. Regular updates on the work were given and we were involved in decisions along the way. Lukas took the time to explain some things so that we could make some good decisions for this bathroom fit. We felt consulted. Lukas overcame any issues such as having un-straight walls to deal with. Lukas also cleaned up thoroughly at the end of each day. We would highly recommend Lukas We are very happy with the professional work that was undertaken. We really like our new transformed space thanks to you Lukas.
Construction
Rating: 5 out of 5
Extension Builder in High Wycombe
Carpenter Joiner:level 2 Diploma (blue CSCS) 10 years experience in UK 10 years experience back home (Romania) Level 2 Diploma in Electrical &Electronic Engineering Technology (QCF) CERTIFICATE of Attendance Waterproofing in Buildings (Delta Membrane Systems) Certificate of Attendance GRP Roofing (fibreglass flat roof installation) Construction Industry Scheme (sole trader registered)
Get in touch
Latest review:
Carpentry- 17 Sep 2021
Viorel quoted promptly, arrived on time and did a a great job of the required carpentry jobs at my house - a cat flap and alterations to cupboards. I'm already talking with him about doing other jobs in the future so would definitely recommend Viorel!
Xhoka construction limited
No reviews yet
Extension Builder in High Wycombe
We do all Structural work like 1- ground works 2- brick&bllock work 3- roofing including flat roofes as well all types 4- new build house or extencions
Get in touch
New Era Building Ltd
Rating: 5 out of 5
Extension Builder in High Wycombe
We are a small but competent building company who undertake house building, extensions, brickwork and carpentry. We enjoy building one off houses from start to completion. We have an excellent resume of completed projects. We carry Contractors All Risk Insurance.
Get in touch
Latest review:
Extensions- 14 Mar 2021
It was a pleasure having Simon and his team building my extension. The work started as per the agreed date and completed ahead of schedule. I would certainly use this company again in the future and would highly recommend them.

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.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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.