Extension Builders in Chalfont St Giles

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.4 (10 reviews)

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Some of our top rated extension builders in Chalfont St Giles

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Joban
No reviews yet
Extension Builder in Chalfont St Giles
Experienced builder providing quality construction and renovation services. Committed to durable results, clear communication, and customer satisfaction. ✔ Experienced & fully insured ✔ High-quality materials & workmanship ✔ Clear pricing – no hidden costs ✔ Reliable, friendly service ✔ Projects completed on time
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Diamond home creations ltd
No reviews yet
Extension Builder in Chalfont St Giles
Diamond Home Creations Ltd is a construction company that specialises in domestic and commercial building projects. Our unique and long-standing relationships with leading professional construction industry firms and suppliers, allow us to offer our clients the very best customer experience and value for money in the business.
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Harpreet
No reviews yet
Extension Builder in Chalfont St Giles
I am fit your bathroom properly
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Manmeet construction and design
No reviews yet
Extension Builder in Chalfont St Giles
“Resourceful builder with 5 years of experience in roofing, tiling, bathrooms, kitchens, floor fitting, painting, and garden constructions. Skilled in multi‑trade tasks from renovation to decoration. Known for precision, reliability, and delivering high‑quality workmanship under tight schedules.”
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Leon building contractors limited
Rating: 5 out of 5
Extension Builder in Chalfont St Giles
Hi.Welcome to our profile. We are well established building company working in London and surrounding areas. We are specialists in loft conversion and extension. All kind of building works undertaken.also happy to provide photographs and references of our previous happy customers.We offer free quotes.Fully insured,skilled trades men. Finish projects on time limit to suits you. We are proud member of Association of Master Tradesmen and check a trade. thanks for visiting our page.
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Latest review:
Extensions- 25 Apr 2025
we recently had the pleasure of working with Leon building contractors limited, and i cant recommend them highly enough! They carried out a single story rear extension, an internal garage conversion and porch to the front of the house. On top of that they installed our new kitchen and toilet suite downstairs all finished to a high standard. From start to finish Vic and his team were amazing nothing was too much trouble and were always happy to do anything without a fuss. Their attention to detail was first class. It wasn't only us who was impressed but our neighbors commented how friendly, respectful and hard working they all were and have already asked for his contact details. Vic trade contacts also helped us with windows/bi-folds and quartz worktops all high quality at much cheaper prices i could find myself! Thanks again to Vic and the team for doing such a brilliant job, we have no hesitation to use again in the future!
Imam Builders Limited
No reviews yet
Extension Builder in Chalfont St Giles
Imam Builders Limited is a trusted construction firm based in Berkshire, and the surrounding areas. We specialise in high–quality conversions, extensions, and refurbishments, helping homeowners and property developers unlock the full potential of their spaces. With years of industry experience, our skilled team is committed to delivering exceptional craftsmanship and personalised service on every project. From the initial design phase to the final build, we manage each stage with precision and care, ensuring a smooth, stress-free experience and a result that blends seamlessly with your existing property. At Imam Builders Limited, we focus on enhancing both the value and functionality of your home or commercial space, transforming your vision into a reality you can be proud of. Whether you’re looking to expand, modernise, or completely reimagine your property, we are here to bring your ideas to life with reliability and excellence.
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Angle Construction
Rating: 4.7 out of 5
Extension Builder in Chalfont St Giles
We have been in the construction business for over 15 years doing all sorts of works, from minor works to full home constructions. No job to small no job to big. We work in and around London
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Latest review:
Windows & Doors (uPVC & Metal)- 28 Jan 2026
Very unhappy with how things went with Angle Construction overall. Poor comms during the transaction was the first red flag - no communication for 2 days the moment money was sent, however afterwards received an apologetic call - parts ordered and arrived in due course. Andrei turned up, and got to work on removing the old gate, but then started shaving down the post without saying anything -we were told after that the posts were not level. Eventually he said the door would need to be cut, which we agreed to. The door and posts were both cut to fit, but massive gap left at the bottom, and only half of the door fittings and no handles were installed! In addition, where the door was cut and the wood shaved made, a lot of mess was left all over the garden furniture and patio floor. Shocked at the lack of care and professionalism. He was clearly agitated and in a rush to leave. We have a working back door, but it looks like a real botched job. Not happy, and I would not recommend.
MarioM Construction Ltd.
Rating: 5 out of 5
Extension Builder in Chalfont St Giles
We have spent 15 years in the construction sector. Having experience both in the private sector and commercial sector, we use innovative and modern technology to complete your work. In effect, we achieve higher precision, shorter work times and due to this a lower cost for you. Our deal with a builders’ merchant allows customers to access unique deals which are not available elsewhere. You can learn even more about us by looking at our past projects
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Latest review:
Extensions- 18 Jul 2016
Mario is a brilliant guy with full knowledge of the job. His workers were very punctual and hardworking and finished the job well. I would definitely recommend Mario to my friends and relatives and will use him in the future. Excellent Finish!!!
JSRM Construction LTD.
No reviews yet
Extension Builder in Chalfont St Giles
Welcome to JSRM Construction LTD! We are dedicated to delivering top-quality building services tailored to meet your needs. With a team of skilled professionals and years of experience in the construction industry, we specialize in residential and commercial projects, ensuring that every detail is executed to perfection. Our commitment to safety, integrity, and client satisfaction sets us apart. Whether you’re planning a new build, a renovation, or an extension, we’re here to bring your vision to life. Let’s build something great together!
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GTF Brickworks
No reviews yet
Extension Builder in Chalfont St Giles
Hello my name is George. I have 12 years' experience in all areas of brickwork including feature panels, extensions, garden walls, wall repairs and new builds.
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Junaid Ahmed
No reviews yet
Extension Builder in Chalfont St Giles
We are doing all kind of building works loft conversion, single or double storey extension, new build homes. Also we don’t charge any upfront, we will charge our clients after the work done and approved from building control
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22g construction limited
Rating: 5 out of 5
Extension Builder in Chalfont St Giles
Hi , we are here on this platform to make your dream house into reality , with 20years of experience in all trades and expertise we will make sure you get the best service , so chose us for any kind of construction work . Thanks
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Latest review:
22g construction did my bathroom refurbished they did very good job more than my expectation I am happy to recommend 22 G construction anyone who’s looking refurbishment extension or any other work
EEOC Ltd
No reviews yet
Extension Builder in Chalfont St Giles
Emilian has been in construction for over 20 years. Starting out FROM solving steps to FIXING things right after high school, he HAS learned in UK how to build a house from the foundation up. Few years ago he turned his passion AND KNOWLEDGE into a business that focuses on the long-term goals and satisfaction of his clients. As a Building , Refurbishing Construction , EEOC LTD can be defined as a complex construction projects.
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JBL DEVELOPERS LIMITED
No reviews yet
Extension Builder in Chalfont St Giles
JBL Developers is a professional residential and commercial property‑development company, fully registered at Companies House. Visit our website to explore our portfolio and services. With a focus on quality, integrity and client satisfaction, we deliver bespoke renovations, refurbishments, conversions and new builds, tailored to your vision and budget. From the initial consultation through design, planning, build and hand‑over, our experienced team manages every phase with transparent communication and attention to detail. Whether it’s transforming a single room, overhauling a full home or developing a larger project, we ensure projects are completed on time, on budget and to the highest standards. At JBL Developers we believe in building lasting relationships and creating spaces that are not only aesthetically pleasing but functional, sustainable and built to last. Get in touch at to find out how we can bring your property ambitions to life.
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Gill Construction ltd
No reviews yet
Extension Builder in Chalfont St Giles
Always good work and quality
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Fencing
New on MyBuilder
Extension Builder in Chalfont St Giles
We are a reliable and professional supplier of high-quality fence posts, committed to providing strong, durable, and well-finished products to meet our customers’ needs. We take great care in ensuring that every fence post we supply is made to a good standard, with proper attention to quality, strength, appearance, and overall finish. Our products are supplied in a neat, clean, and well-presented condition, ensuring they are ready for use and suitable for a wide range of fencing requirements. We understand that good-quality fence posts are essential for creating a secure, stable, and long-lasting fence, which is why we focus on maintaining consistent quality in every product we provide. We take pride in our professional service, careful preparation, and commitment to customer satisfaction, making sure everything is handled properly from the selection and preparation of the posts through to delivery. Customers can rely on us for dependable products, competitive service, and fence posts that are strong, neat, clean, and suitable for both domestic and commercial fencing projects. Our aim is to build long-term relationships with our customers by providing good-quality materials, honest service, and products that meet their expectation
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3.4

Top rated Extension Builders

Our Extension Builders in Chalfont St Giles, are rated 3.4 out of 5 based on 10 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 Chalfont St Giles?

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 Chalfont St Giles 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 Chalfont St Giles who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Chalfont St Giles?

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

Find extension builders in Chalfont St Giles with MyBuilder

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

Step 2: Compare different extension builders in Chalfont St Giles

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

Step 3: Hire Chalfont St Giles extension builders with confidence

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

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

What to ask a Chalfont St Giles extension builder before hiring?

Before hiring an extension builder in Chalfont St Giles or extension building company in Chalfont St Giles, 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 Chalfont St Giles?

An extension builder in Chalfont St Giles 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 Chalfont St Giles 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 Chalfont St Giles?

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 Chalfont St Giles 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 Chalfont St Giles 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 Chalfont St Giles

Can an extension builder in Chalfont St Giles help with planning permission?

Yes, many extension builders in Chalfont St Giles 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 Chalfont St Giles handle everything from design to construction?

Many Chalfont St Giles 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 Chalfont St Giles help with materials and finishes?

Yes, most extension builders in Chalfont St Giles 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.