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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DLR Groundworks LTD
Rating: 5 out of 5
Extension Builder in Northampton
over ten years experience in the construction industry we offer a range of different services from Groundworks to Driveways and Garden Renovations.
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Latest review:
Landscaping- 6 Dec 2025
Professional and courteous completed job and left site pristine
all in lofts
Rating: 4.8 out of 5
Extension Builder in Northampton
i specialist in loft conversion and all types of building work
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Latest review:
Extensions- 6 Apr 2022
Great team who were easy to get along with. They worked hard and did all I asked and extra when asked. Would use them again and recommend them. Work completed within the timescales quoted.
The Klever Kitchen Company Ltd
No reviews yet
Extension Builder in Northampton
Our mission is to cater to homeowners in Northamptonshire and the surrounding areas, offering smart, budget-friendly options whether they are considering a new kitchen or opting for bespoke cabinetry. We believe that every home should be both beautiful and affordable, and we are committed to making that a reality for each of our valued customers. As well as kitchens we also offer the following services: Bespoke cabinetry Wardrobes Kitchen islands Kitchen extensions Media walls
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Woodgate Construction
Rating: 5 out of 5
Extension Builder in Northampton
Welcome to Woodgate construction My name is Trev. I'm very fortunate to be in a job and run my own company in a trade that I have a massive passion for. I have been a bricklayer for 10 years, building new homes, extensions, garden walls, paths, patios, fencing, landscaping,garden maintenance including lawn mowing and upkeep. I also provide a 'knock through' service of creating openings in walls or simply removing walls inside to make an open plan. There is no job too big or small.
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Latest review:
Bricklaying- 6 Apr 2024
We are extremely pleased with our new front wall. The end result reflects high quality workmanship and true understanding of the issues that affected the original wall. Regular communication before and during the job keeping us informed of the project and deliveries. Our neighbours were equally impressed with the end result and the work completed by Woodgate Construction. Highly recommend.
THOR CIVILS LTD
No reviews yet
Extension Builder in Northampton
Thor Civils is building and civil engineering company based in Northampton 20 years experience new build, extensions ground work
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Wortley Bros Building Contractors
Rating: 5 out of 5
Extension Builder in Northampton
Wortley bros building contractors is a building service with a very high standard of work undertaken.Each building project is treated individually, working directly for clients or building under the supervision of an architect the quality of the finish will always remain the same. Our services -brick/stone masonry -dry stone walling -extensions/renovations -roof repairs -chimneys -patios/drive ways -barn conversions -general maintenance
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Latest review:
Very happy to recommend Bruce, his work is outstanding. Very cheerful and polite, always willing to listen. Gives advice and info when needed. We will be using him again !
2K building & Construction Ltd
No reviews yet
Extension Builder in Northampton
2K Building & Construction is a company based in Northampton made up of tradespeople with many years of experience spanning multiple trades. We always keep the highest standards of work and will always provide the best result possible given your budget. We will take on jobs primarily in the Northamptonshire area, but will also venture into other areas of the East-Midlands. No matter how big or small your job is, we can provide you with an estimate, free of charge.
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Liberty construction services ltd
Rating: 4.5 out of 5
Extension Builder in Northampton
We are liberty construction services ltd We undertake every type of building work you need.
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Latest review:
Conversions - General- 4 Jun 2020
100% happy with the work, prompt, tidy and very well organised.. quick response and everything sorted within a matter of three days! HIGHLY RECOMMENDED
A J Mills Master Masons Ltd
Rating: 5 out of 5
Extension Builder in Northampton
We specialize in offering all services within stonemasonry and construction. Working directly with private clients, estates, the public sector and within education. We have established ourselves as one of the UK’s leading specialists in the restoration and conservation of Historic buildings and monuments and are the largest supplier of Memorials and Headstones in the midlands. As a time-served Stonemason, I have a deep understanding of all aspects of masonry. Our company works closely with surveyors and architects to ensure the highest standards in stone conservation and restoration. Customer satisfaction and building lasting relationships are at the core of our business and pride ourselves on delivering quality craftsmanship across all areas of service that we offer. With a growing team, we undertake projects on both a subcontract and principal contract basis. To better serve our clients, we operate from two offices and showrooms in Northamptonshire, where we offer face-to-face meetings and consultancy services.
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Latest review:
Stonemasonry- 13 Oct 2020
The team arrived on the assigned date, and they set to work on the coping repairs and putting the footings in for the new wall The new wall matched the existing exactly, it was very professionally built and when completed we were satisfied by the result The team worked well to ensure what we needed was delivered and my wife and I are delighted at the finished result We should have done it a long time ago - but at last what we wanted!
Ghenadie Moraru
No reviews yet
Extension Builder in Northampton
Hi my name is Ghenadie I'm working as a Bricklayer Supervisor in a construction company with 15 years experience .I have a good experience team .Any garden walls, extensions you welcome also we do stonework aswell.
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Doe contracts Ltd
New on MyBuilder
Extension Builder in Northampton
Welcome to The Build House — you’ve come to the right place. The Build House is the home of building. With over 40 years of experience in building and home improvements, we bring all master trades under one roof. We specialise in extensions and loft conversions, taking the stress out of your project by managing everything in-house from start to finish. Our team works closely with you to tailor your build to your exact needs, delivering a high-end finish at a reasonable price. We provide clear, legally binding contracts and a written schedule, so you can rest easy knowing there are no hidden costs and your project is in safe hands. Contact us today for a free, no-obligation quote — we make time for you.
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Elements Design & Build
Rating: 5 out of 5
Extension Builder in Northampton
Here at Elements we can offer pre-construction services including design work and planning applications aswell as undertaking the delivery of works. We undertake all aspects of construction including: new builds, extensions, bathrooms, kitchens and general building works. All works are insured and warranties provided on completion.
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Latest review:
Bathroom Fitting- 20 Sep 2018
I selected Jake after few quotes from other on My Builder- He is one of the hardest working builders I have met- Excellent work ethic, Quotes were accurate and detailed and the workmanship and quality of work 10/10. I can definitely recommend Jake Butcher and would be happy provide a personal reference of work if needed.
Bauen concepts ltd
No reviews yet
Extension Builder in Northampton
Bauen Ltd Building & Developments brings over 30 years of industry experience to every project. Led by two directors with a shared passion for excellence, the company is equipped to undertake and successfully deliver building projects of all sizes and complexities. With an exceptional attention to detail and an uncompromising commitment to professionalism, Bauen Ltd prides itself on maintaining the highest standards throughout every stage of construction. Paul Smith, a highly experienced bricklayer and general builder with over 27 years in the trade, is known for his outstanding work ethic, meticulous standards, and ability to ensure projects run smoothly while consistently delivering customer satisfaction. Lee Andrew is a multi-skilled tradesperson with over 15 years’ experience managing full refurbishments and new builds. As a former member of the military, he approaches every project with disciplined planning, strong leadership, and a structured, results-driven mindset. Please visit our social media platforms to view a portfolio showcasing the full range of our work.
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LB-BUILDERS
Rating: 5 out of 5
Extension Builder in Northampton
Hi we are LB Builders & are based in Kettering, Northants. We have over 20 years experience in construction. We specialise in Drainage, Drain Cctv, Cleaning & Repairs, Fencing, Fasia, Soffits & Guttering, Hard Landscaping, Extentions, New Build work undertaken. All our work is guaranteed.
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Latest review:
Driveways (Paved & Loose)- 9 Nov 2017
We were very happy with the job that Lee and his team undertook for us. The quote was reasonable and the work was completed quickly, on time, on budget and to a high standard. We would be happy to recommend LB-Builders.
Stuart O'Mahoney
Rating: 5 out of 5
Extension Builder in Northampton
Based in Barton Seagrave, Northamptonshire. We are dedicated to creating imaginative and high quality woodwork solutions for your home. We offer a professional approach to our work, and a wide range of quality products and services for both commercial and residential customers.
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Latest review:
Kitchen Fitting- 14 Oct 2018
Stuart did a first class job on my kitchen worktops we are very impressed with his standard of work . He kept in touch all the time and worked very hard to get it finished quickly . I would highly recommend him. Patricia york
T Johnson building services
Rating: 5 out of 5
Extension Builder in Northampton
T Johnson building services team cover a wide variety of jobs. - Bricklaying - Stone work - Plastering - Tiling - Renovation -Landscaping. -Extensions. -New builds. We take pride in what we do and enjoy making a customers dream come true. We always leave the job clean and tidy every time we leave the site. No jobs are too small. Covering Northamptonshire area. Please call to arrange a FREE no obligation quote.
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Latest review:
Bricklaying- 22 Feb 2020
Tom has been brilliant. Turns up when he says he’ll turn up. Does an excellent job. Very tidy. Happy with the price we paid. Would definitely use him again. 100% would recommend him.

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.

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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.