Extension builders in Biggleswade

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (4 reviews)

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

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 Biggleswade

643 Results

Sort by:

Flattley Building services
Rating: 4.7 out of 5
Extension Builder in Biggleswade
With two decades of experience in the construction industry we specialize in general building and landscaping works.
Get in touch
Latest review:
Decking- 24 Jul 2026
Unfortunately the provider had to drop out due to personal circumstances.
Brickbuild Construction Limited
Rating: 5 out of 5
Extension Builder in Biggleswade
We are specialist in Brickwork, Extensions, garden walls, Removal of chimneys and internal walls, Installing RSJs, and bi-fold door openings, Brickwork repairs, We also undertake property maintenance, renovations, home improvements and insurance work. We have been in the Construction business for over 20 years plus. I have been laying bricks since I left collage with city & guilds pass.
Get in touch
Latest review:
Bricklaying- 8 Nov 2022
Very happy with our fireplace opening. Done a great job at a fair price. Many thanks
Lawson brickwork/construction
No reviews yet
Extension Builder in Biggleswade
Nvq Lv2 qualified bricklayer Worked on domestic builds, commercial builds, brickwork as small as a few bricks replaced / repaired to full scale house builds
Get in touch
JHF Construction Limited
Rating: 5 out of 5
Extension Builder in Biggleswade
JHF Construction Ltd have been established as a limited and VAT registered company since March 2018. Located on the outskirts of Hitchin, our brand-new Studio is an example of our work and welcomes visits. We provide a reliable, professional service with innovative concepts and pride ourselves on the quality of our work. We offer everything from design through to completion and work hand-in-hand with our clients to ensure expectations are met and exceeded. Always striving to go the extra mile.
Get in touch
Latest review:
Kitchen Fitting- 27 Feb 2019
Jack and the team did a great job on our new kitchen including new electrics, tiles and underfloor heating and we’re truly delighted with the end result. Jack was always available to discuss the project and answer any questions or concerns I had and was able to quickly overcome issues we experienced relating to the kitchen units and a design error. He was always professional and gave us useful tips and input into the overall kitchen design and helped us source very nice materials. As with many small businesses, Jack and the team were juggling other jobs along side ours which meant that after some unexpected additional work on our floor, they were unable to complete the job within the original timeframe plus 2 days contingency. As a family with young children we found this really difficult so I would urge you to project manage closely. It was all totally worth it in the end though and overall I would recommend Jack and the team.
KIP BUILDERS LTD
Rating: 5 out of 5
Extension Builder in Biggleswade
Laying foundations; Digging foundations; Brick laying; Block laying; Timber walls fixing; Stud walls; Roofing; Carpentry First fix; Carpentry Second fix; Flooring; Windows fitting; I work as an extion builder. Focusing mainly working around these types of jobs. Working on building sites for over 16 years ..
Get in touch
Latest review:
Extensions- 31 Jan 2021
One storey rear extension dining room, office room and downstairs shower suite built Sept-Dec 2020 Fantastic service. Competitive quote and were able to start as soon as I was ready. I was kept informed throughout the process and any additional work that was required (such as spotting a leaking pipe) was always discussed prior to any action being taken. They were employed to build my first floor extension however were also able to offer landscaping for my garden (at additional cost) I paid in weekly instalments across the period of the project with an upfront deposit for initial building materials. Overall the job took approx 9 weeks (inclement weather) would def use again.
Wolfwood Homes Ltd
No reviews yet
Extension Builder in Biggleswade
I run a construction company that provides a services to both domestic and commercial clients. Our services range from initial site surveys including conditional surveys of existing properties, detailed design for both planning and building regulations, project management or main contractor service. We currently run projects that range from loft conversions and extensions through to completed builds, while at all times being customer focused with quality and safety as our priority.
Get in touch
D.Smith Contracting
Rating: 4.7 out of 5
Extension Builder in Biggleswade
Sole trader with 8 years experience. Drainage, civils and groundworks all undertaken to high standards. Drainage services include, off mains installations such as septic tanks and sewage treatment plants, CCTV surveys and reporting, repair works such as dig ups and non invasive patch repairs. Civils such as ducting work, draw pits. Then groundworks such as footings, foundations, concrete slabs, soak aways, artificial grass, patios, grading and site prep. Tickets and qualifications, SMSTS(site manager), SSSTS(site supervisor), first aid, NPORS digger under and above 10t, NPORS dumper, IPAF, confined space, and high pressure water jetting.
Get in touch
Latest review:
Groundwork & Foundations- 27 Sep 2026
Outstanding! Couldn’t be more willing, excellent knowledge base and with clean and tidy work I couldn’t ask for better. Thanks
Summit Construction
No reviews yet
Extension Builder in Biggleswade
At Summit Construction, we’re more than just builders — we’re partners in bringing your vision to life. With a passion for quality and a commitment to reliability, we offer a full range of construction services, from garden renovations and extensions to new builds, carpentry landscaping, garden pergolas and gazebos. Founded on the principles of honesty, precision, and customer satisfaction, we work closely with every client to ensure each project is completed to the highest standards — on time and on budget. Whether you’re planning your dream home, upgrading your space, or starting something new, we’re here to guide you every step of the way.
Get in touch
Kj building services
Rating: 5 out of 5
Extension Builder in Biggleswade
I have experience in General building work underpinning. Extension, Loft conversion.house refurbishments flat renovation Bathrooms Kitchens. Plastering, tiling ,floor sanding , fitting kitchen and new bathrooms, Painting. I have been working on the private property's for 20 years and I have excellent references i can provide.
Get in touch
Latest review:
Tiling- 2 Dec 2020
The builder was very professional and everything was done in a timely manner I will recommend him
DL carpentry
Rating: 3.7 out of 5
Extension Builder in Biggleswade
My name is Dean I am a carpenter who is honest and reliable with over 20 years’ experience. I have been running as a business for the last 8 years doing all aspects of carpentry . Loft conversions , extensions , multiple occupancy (hmos) are also jobs that we can do for you. All small and big jobs with a free no obligation quote.
Get in touch
Latest review:
Decking- 4 Jun 2020
I recently had decking installed by Dean, he was quick to reply to the job in the first instance, then prompt in calling and arriving to measure up, quote arrived, and in just over a week later my decking had been completed. We are very happy, great job done. He even fixed my dodgy back gate on his way out 👍 Highly recommend Dean and I'll almost certainly use him again Clare G
GA Living Spaces Ltd
Rating: 5 out of 5
Extension Builder in Biggleswade
George Alexander Living Spaces is a family-run business specialising creating and re-novating "Living Spaces" within residential properties. As a company, with over 30 years experience, we specialise in all aspects of building works; from constructing a timber frame house from scratch; extensions; loft & garage conversions; refurbishments; designing and manufacturing your new kitchen; bathroom or stone worktops - through to boarding and plastering internal walls!
Get in touch
Latest review:
Kitchen Fitting- 11 Dec 2018
Our kitchen looks very nice and bright and everything we required has been achieved, at a competitive price. The team were very polite,considerate and hardworking. There have been a couple of hold ups along the way, but we are pleased with the finished product.
Hamilton builders group ltd
New on MyBuilder
Extension Builder in Biggleswade
Hamilton Builders Group is a trusted, family-run building company with over 40 years of experience in the building trade. As a third-generation family business, we pride ourselves on providing a reliable, professional and personal service to every customer. We specialise in home extensions, renovations, new builds and general building work across Hitchin, Stevenage, Letchworth, Baldock and the wider Hertfordshire area. From smaller home improvements and repairs to larger extensions and complete property renovations, we have the experience and knowledge to manage projects from start to finish. We believe that good communication, honest advice and quality workmanship are just as important as the finished result. We work closely with our customers throughout every stage of a project, paying close attention to detail and taking pride in delivering work to a high standard. Whether you already have plans or simply have an idea you would like to discuss, we are always happy to offer advice and provide a free, no-obligation quotation. At Hamilton Builders Group, our reputation is built on experience, quality and putting our customers first.
Get in touch
Comer Construction Services
No reviews yet
Extension Builder in Biggleswade
I am a multi skilled builder, I set up Comer Construction Services 10 years ago and before that worked in my father's construction company for 10 years. I will take on work of all sizes from an extension that takes 18 months to fitting a laminate floor that is put down in a day.
Get in touch
Cutting edge building solutions
No reviews yet
Extension Builder in Biggleswade
Cutting edge building solutions is a full-service building construction company dedicated to delivering high-quality, reliable, and innovative construction solutions. With extensive experience in residential, commercial, and industrial projects, we take pride in turning our clients’ visions into enduring structures that stand the test of time.
Get in touch
David Leonard Construction
Rating: 5 out of 5
Extension Builder in Biggleswade
We are a company that specialises in groundwork’s we do a lot of driveways, patios, foundations, pipe work. We really never say no to anything
Get in touch
Latest review:
Fencing- 25 Feb 2020
David was very quick to respond and got the job done very quickly too. Good communication and very polite. Would recommend this young man.
JLE Carpenters
Rating: 5 out of 5
Extension Builder in Biggleswade
Carpentery company based in St Neots covering the uk. We cover all aspects of carpentry from roofing to door hanging and even fencing. We offer guaranteed quality and professionalism on all of our jobs. No job too big or small💪
Get in touch
Latest review:
Carpentry- 31 Aug 2025
JLE carpenter come round to fit an interior door. Jonny arrived on time, was professional, clean, and tidy throughout the job. His rates were fair — I’d say middle of the road — and the quality of his work was excellent. I’m very happy with the result and would happily recommend him.

Top rated Extension Builders

Our Extension Builders in Biggleswade, are rated 5 out of 5 based on 4 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 Biggleswade?

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

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

What are the hourly rates of extension builders in Biggleswade?

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

Find extension builders in Biggleswade with MyBuilder

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

Step 2: Compare different extension builders in Biggleswade

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

Step 3: Hire Biggleswade extension builders with confidence

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

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

What to ask a Biggleswade extension builder before hiring?

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

An extension builder in Biggleswade 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 Biggleswade 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 Biggleswade?

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 Biggleswade 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 Biggleswade 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 Biggleswade

Can an extension builder in Biggleswade help with planning permission?

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

Many Biggleswade 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 Biggleswade help with materials and finishes?

Yes, most extension builders in Biggleswade 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.