Extension Builders in Northampton

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.5 (4 reviews)

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Some of our top rated extension builders in Northampton

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Sergiu Mereacre
No reviews yet
Extension Builder in Northampton
Good skilled on interior works as bathroom fittings,painting,furniture fitting etc.
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JMG Smart Solutions
Rating: 4.6 out of 5
Extension Builder in Northampton
A local company with 20 plus years experience with bringing people’s dreams to reality. Building , carpentry , floor laying & all aspects of renovation managing in both domestic and commercial environments completing Jobs to a high standard Big and small. We put your interests as the customer first. I offer: Free quotations Free advice on your project. Work undertaken includes: all aspects of carpentry and joinery we specialise in kitchen installations from full kitchens including cabinets or just renovation doors drawfront side panels worktops and use your existing cabinets….
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Latest review:
Extensions- 12 May 2024
Peter and Jay worked on the assembly of the garden office as per specifications provided. Peter kept me updated throughout the process and was happy to answer my queries. The job was completed within the agreed timeframe without any issue. Overall I am happy with the result and would gladly hire JMG solutions again.
Adam Stubbins
Rating: 5 out of 5
Extension Builder in Northampton
Any works undertaken from maintenance, kitchen and bathroom fitting to full garden makeover or extension
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Latest review:
Carpentry- 8 Aug 2023
Smooth action, fast service recommended.
NIVARO LTD
No reviews yet
Extension Builder in Northampton
Happy to help
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Statham and son
No reviews yet
Extension Builder in Northampton
Statham and son have been in business for over 20 years, we undertake most building works, lately specialising in kitchens, Bathrooms, wetrooms. We are fully insured and Niceic approved
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Belmax Builders ltd
Rating: 5 out of 5
Extension Builder in Northampton
We are a family run business based in rugby, with over 20 years experience in the construction industry. We specialise in extensions, loft conversions, renovations and structural and non structural alterations. We are also fully insured members of the FMB.
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Latest review:
Extensions- 14 Dec 2017
Rob and his team were great! Without hesitation he gave us 3 references of extensions he had built locally to us all with glowing appraisals before we confirmed we were happy for him to start. He explained everything very well and was always reassuring. His timing keeping on our project even with small problems were spot on and actually finished 2/3 days before the agreed finished date. Rob and his team also supported us when we had issues with suppliers (which we sourced). Rob and his team were always polite, friendly and willing to chat over the phone at pretty much anytime. He have a dog and he was always very considerate of him during the build. I would highly recommend Belmax team and their 5 star work/service.
Deluxe Developers Ltd
No reviews yet
Extension Builder in Northampton
Deluxe Developers are NHBC registered Builders and contractors to both the domestic and commercial market. The company has a highly skilled work force covering all sectors of the property and building sector. With a background of four generations in the building industry Deluxe Developers offer design, planning and building services specialising in low energy sustainable homes.
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RDS Building Services Ltd
Rating: 4.8 out of 5
Extension Builder in Northampton
We are a team of dedicated master builders based in Milton Keynes who specialise in high quality extensions & rapid construction of shell only builds. 25 yrs experience in residential builds, from single room additions to bespoke new builds. Extensive work history with trusted teams ready to work with outstanding attention to detail & professionalism. Members of FMB, and CHAS & Safe Accredited. Design service, project management & full construction offered as part of our service.
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Latest review:
Extensions- 27 Jul 2023
I would be happy to use RDS buiding services again. They turned up every day worked efficiently and kept the mess created by the construction out of the way of the neighbours. The budget we agreed was followed and the stage payments schedule worked throighout the build. I am very happy with the quality of the work and more importantly the attitude of the builders who worked with us when inevitable snags came along. We invited RDS to do some additional work (landscaping in the garden) which did not detract from the main job. Thanks RDS for a job well done.
E.M Building Projects Ltd
No reviews yet
Extension Builder in Northampton
Specialising in supporting planning applications for residential units from extensions to proposed developments, offering measured home surveys, planning drawings, rendered House Type Planning packs, Street Scenes. Software used: AutoCAD & Photoshop.
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David James Construction Ltd.
Rating: 5 out of 5
Extension Builder in Northampton
Our business is based in Northamptonshire, we project manage and construct various types of building projects from small extensions up to individual one off houses.
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Latest review:
Extensions- 10 Jan 2017
I couldn't be more happy with the porch that Dave & James built for me. I have a character property and had a very specific idea of what I wanted and they got it spot on. They were extremely sympathetic to the original cottage and my new addition looks like it has been there forever. I decided to go with an Oak front door which James fitted and it's perfect. I was very pleased to see both Dave and James turn up each morning before I headed off for work so that we could have a catch up. I really, really appreciated this gesture. The work was completed on time as promised. I will most definitely be using David James Construction in the future with the landscaping of my front garden being the next project. I am so pleased to have found reliable, skilled and trustworthy tradesmen who I know I will go back to time and time again. Thank you ever so much Dave & James!
Carpenters joiner
No reviews yet
Extension Builder in Northampton
Hi I working in wood trade I will be happy if I work wit us
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Refit Guys
No reviews yet
Extension Builder in Northampton
We are the owners and founders of RefitGuys a company just getting started with our company we have multiple years of experience and expertise in a variety of fields including commercial and residential.
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Wheeler & Dobson Developments
No reviews yet
Extension Builder in Northampton
Small family firm new to MyBuilder Building Works Which Includes: Extensions Loft Conversions Kitchens Bathrooms All 1st & 2nd Fix Carpentry, Plumbing Roofing and More
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ARB BUILD LTD
No reviews yet
Extension Builder in Northampton
ABOUT US: ARB PROPERTY LTD is dedicated to providing exceptional building services tailored to the unique needs of homeowners, developers, and landlords. We have been in the industry for over 10 years, working on a vast array of properties and projects within the UK. Our passion for craftsmanship and attention to detail drives us to create stunning living spaces. We are committed to transparency, accountability, and delivering unparalleled quality. 'A renovation company built by Owners for Owners' We have built a solid reputation by delivering a high quality results on time, and within budget. We have formed excellent working relationships that keep our customers on a journey with us, and recommending us to their friends and family. We pride ourselves on delivering an honest, and upfront approach with integrity every step of the way. Transforming your visions into reality, while taking the stress out of the overall project management by our dedicated owner.
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thompsons carpentry and construction
Rating: 5 out of 5
Extension Builder in Northampton
Thompsons Carpentry and Construction, based in Bedfordshire, is a trusted, full-service construction company proudly serving clients within the 40-mile radius. With over 11 years of experience in the construction industry, we bring expert craftsmanship, reliability, and a customer-focused approach to every project we undertake. We specialise in all aspects of construction, including carpentry, roofing, brickwork, structural work, renovations, and conversions. From small home improvements to large-scale structural projects, our team delivers high-quality workmanship built to last. We also offer guarantees on all work, with flexible warranty lengths tailored to each job for added piece of mind. At the heart of the business is a simple mission; to bring every customer's vision to life while working closely with them at every stage, ensuring all work is completed efficiently, professionally, and to the highest standard. We pride ourselves on transparent communication, attention to detail, and a commitment to delivering results that exceed expectations. Whether you're transforming a space, repairing a structure, or building something completely new, Thompsons Carpentry and Construction is here to make it happen with quality and care
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Latest review:
Carpentry- 13 Jun 2026
Excellent service from start to finish! Very polite, knowledgeable and helpful. We are super happy with the finish and we can’t stop looking at our new cladding.! will definitely be using Calvin again for future projects. Thanks so much 🙏
Damax Building Solutions Ltd
No reviews yet
Extension Builder in Northampton
A reliable and professional one stop design and build company that cover all professional and construction services based in Kettering, Northamptonshire. With a reputation for quality, reliability and customer communication we will complete your project on time and on budget, no matter how big or small
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4.5

Top rated Extension Builders

Our Extension Builders in Northampton, are rated 4.5 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 Northampton?

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

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

What are the hourly rates of extension builders in Northampton?

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

Find extension builders in Northampton with MyBuilder

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

Step 2: Compare different extension builders in Northampton

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

Step 3: Hire Northampton extension builders with confidence

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

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

What to ask a Northampton extension builder before hiring?

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

An extension builder in Northampton 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 Northampton 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 Northampton?

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 Northampton 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 Northampton 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 Northampton

Can an extension builder in Northampton help with planning permission?

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

Many Northampton 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 Northampton help with materials and finishes?

Yes, most extension builders in Northampton 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.