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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Mogbrick
Rating: 5 out of 5
Extension Builder in Northampton
At MogBrick, we specialise in all aspects of general building work, including extensions, renovations, brickwork, conversions, and more. Whether you are planning a full-scale transformation or a smaller, bespoke project, we provide a professional and personal service from start to finish. Our skilled team takes pride in high standards of workmanship, clear communication, and a smooth building experience for our clients.
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Latest review:
Extensions- 30 Sep 2022
I hired Petru to build an extension at a bungalow im renovating. He and his team of men took care of the demolition, groundworks, brickwork and roof. His quote was decent and despite the language barrier I found him easy to work with. He liaised with building control to ensure we met the required standards. There were also a few odd snag jobs he carried out at the end as well without any qualms. I would certainly recommend him for all general building work.
W Lee Carpentry Limited
Rating: 5 out of 5
Extension Builder in Northampton
Thank you for taking the time to read my profile. At W Lee carpentry Ltd we offer a complete service to all our customers. All work is to a very high standard and comes with a minimum 12 month guarantee. Building work guarantees are a lot longer. Details provided in our quotes. We offer complete service from start to finish. If it is an extension or loft conversion we can do the drawings required and carry it through to the completion of the completion of the project.
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Latest review:
Extensions- 15 Jun 2022
Wes and team built a brick porch for my house. The work was completed to a very high standard, with excellent attention to detail. I would have no reservations in recommending him or using his services in the future.
Cristian
Rating: 4.9 out of 5
Extension Builder in Northampton
My experience in Construction industry is about 10 years , For over 10 years I and my trusted small team of tradesmen have been providing high-quality property maintenance and services include: -extensions; loft conversion,laminate and hard florring, carpentery; -painting and decorating and much more... I adjust my time for each client and all work is done according to the given time
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Latest review:
Bricklaying- 11 May 2026
He is amazing for work for time for understanding i really recommend him for other jobs. He is good guy and good worker. Thanks cristian for you time i really appreciate.
Alexandru
Rating: 5 out of 5
Extension Builder in Northampton
🔨Where Quality Meets Craftsmanship 🔨 Greetings! I'm Alexander, and I'm more than a professional - I'm your go-to expert for a spectrum of home improvement services. Offline Home Improvements We specialise in high-quality home improvement and building projects, helping homeowners extend, improve and transform their properties with confidence. Our main focus is on extensions, conservatories, roofing, structural alterations, brickwork, timber construction and full refurbishments, with a strong commitment to quality workmanship, reliability and a professional finish. Whether you are planning a new extension, upgrading an existing conservatory, opening up internal space or carrying out a full renovation, we offer a dependable service from start to finish. We understand that customers want builders who turn up on time, communicate clearly, keep the job organised and deliver work to a high standard, and that is exactly what we aim to provide on every project. Our portfolio includes extension builds, conservatory installations and upgrades, warm roofs, structural openings, brick and block work, timber framing, kitchen renovations and major property improvements. We focus mainly on substantial building works rather than small repair jobs, which means our experience is best suited to customers looking for real home transformation and lasting value. If you are looking for a trustworthy and hardworking team for your next building project, we would be happy to discuss your plans and provide a competitive quotation.
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Latest review:
Kitchen Fitting- 21 Jun 2026
Alex has recently installed our new kitchen from Wren. He has been excellent all the way. An honest, very hard working, polite and neat person with amazing workmanship. Always on time and works non-stop till the day ends. He is multi skilled regarding plumbing, electrics, flooring, decorating etc. He is very dedicated and serious in what he does to give you quality work. We are absolutely pleased with our new kitchen and highly recommend him to anyone. It has been a pleasure to have worked with him and couldn't thank him enough. M & M - Corby
MPM&FAMILY LIMITED
Rating: 5 out of 5
Extension Builder in Northampton
MPM&Family Construction Ltd, "Building your vision, one brick at a time. Welcome to MPM Construction - where quality craftsmanship meets superior customer service."
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Latest review:
We had our 2 storey extension done by MPM construction. Everything was completed on time and within agreed budget to a very high standard. All issues were resolved promptly without causing any delays (sewage pipe was discovered when digging foundation so design change was required). We were kept informed of the progress at all times. Looking from his experience, Miroslav suggested some changes to our design, which we accepted. We liked their workmanship so much, that we hired them again for our garden and driveway refurbishment. And again work was completed to a high standard and for very competitive price. MPM construction team is very experienced, professional and honest. Will definitely be using again in the future.
CBA CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in Northampton
Hello, my name’s Cristian Turcanu and I represent CBA CONSTRUCTION LTD. We are a dedicated team of professionals specializing in high-quality restoration and refurbishment projects. With 10 years of experience, we pride ourselves on our attention to detail, strict adherence to building regulations, and commitment to customer satisfaction. Whether it's structural work or final finishes, we ensure every project is completed to the highest standard.
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Latest review:
We recently hired CBA to carry out removing a load-bearing wall to create an open-plan kitchen and dining area as well as completely ripping out and refitting two bathrooms. From start to finish, their work was fantastic They are an incredibly hardworking, Christian and Viorel take great pride in what they do. I would hesitate to recommend them for any building work that needs doing
Kingsthorpe Building Services
Rating: 5 out of 5
Extension Builder in Northampton
Whatever projects you have in mind from simply hanging a door to building a new extension or maybe a new drive or patio then contact KBS for an estimate and advice. We aim to provide quality work at an affordable price.
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Latest review:
Extensions- 15 Feb 2020
Brilliant builder, Gerald and Carl are more than helpful whatever needs doing. A few bits of extra work were required which they completed without an issue. We are very happy with our extension. Thank you!
Geldion Prifti
Rating: 5 out of 5
Extension Builder in Northampton
Aiming to provide the best service and make customers happy.
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Latest review:
Plastering- 12 Feb 2025
Reasonably quoted on Garden maintenance job, on time start and finish. After job cleaning appreciated. Friendly and they know what they are doing. Recommended!! Thanks
Aarons property services
Rating: 5 out of 5
Extension Builder in Northampton
I’m a qualified carpenter with over 7 years worth of experience of all round building works. I thrive off of good qualify finishes and provide 100% to whatever the customer wants. I have a strong team behind me who are always willing to go the extra mile to get the job done. I always take pride in my work and I am a very reliable person who is keen to help. I am fully insured so I look forward to hearing from you…
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Latest review:
Roofing (Pitched)- 13 Apr 2026
Very good work friendly service job done on time
LMNORIGINALPROJECTS LTD
Rating: 5 out of 5
Extension Builder in Northampton
. 22 years experience in the building/ construction industry. Clean , tidy , considerate and always on time Find us on Instagram and facebook Lmnoriginalprojects Quality workmanship across all trades and projects big or small
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Latest review:
Handyman- 22 Jun 2026
I needed a key safe secured to a wall outside. Andy did a great job and was friendly and professional throughout. Very happy with his work!
Marco Sgoluppi
Rating: 4.6 out of 5
Extension Builder in Northampton
With over fourty years experience in the building industry, Marco Sgoluppi T/A iBuild offers trades to include plastering tiling brickwork kitchen fitting amoung others with all undertakings finished to the highest of standards. Working with a great team of trades people, iBuild will get your project to fruition in the smoothest possible manner and quality assured.
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Latest review:
Extensions- 3 Oct 2025
It was the biggest mistake of my life choosing marco to do an extension job and kitchen renovation. He gets cowboys into do the job and has no control or watch over them. We were promised so much, but instead he left with the overall job approximately after 30% complete with dangerous equipment, live wires, skips load of rubbish in my back yard, without a roof on my extension and me trying to keep my kid away from this danger.. Marco kept making excuses because of his health issues and tried to run off with overpayments I made to him. I got legal advice to try to claw some money back, but not all of what we agreed. Only just recovered from the trauma he left me me and my family in. STAY CLEAR OF HIM FOR BIG JOBS!
Scott Marshall Building
Rating: 5 out of 5
Extension Builder in Northampton
We have a wealth of experience in the building industry and specialise in extension ,new builds and any brick and stone work
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Latest review:
Bricklaying- 19 Apr 2022
Could not be happier. Marshal is professional, kind and sensitive to individual building needs. Got the job done to an incredible standard for cheaper than any of the other quotes and in very good time. I had a section of garden wall that had been pushed over by tree roots and no access to the garden other than through the house. Marshal and his guys were kind, friendly, kept the house clean on their way through and did a fantastic job. Cody, one of marshals employees was particularly kind and even took time to answer my children's endless questions. I'll be using this company again for sure and would recommend to anyone who needs building work doing.
Simon
Rating: 5 out of 5
Extension Builder in Northampton
Reliable and hardworking carpenter with experience in first fix, second fix, roofing, kitchen fitting, flooring, and general construction work. Skilled in using hand and power tools, reading drawings, and working independently or as part of a team. Strong attention to detail with a commitment to high-quality workmanship and site safety. ⸻ Key Skills • First Fix Carpentry • Second Fix Carpentry • Kitchen Installation • Door Hanging & Skirting • Roofing & Timber Frame • Flooring Installation • Measuring & Cutting Materials • Reading Technical Drawings • Use of Hand & Power Tools • Health & Safety Awareness • Reliable Timekeeping • CSCS Card Holder (if applicable)
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Latest review:
Handyman- 16 Jun 2026
Simon was professional from start to finish and carried out the work to a very good standard. Flawless communication. I do recommend
pkcm builders
Rating: 5 out of 5
Extension Builder in Northampton
Hi My name is Phil and I have 20 years experience in building. I’m neat and tidy and always do an excellent job. Please let me do your work and you will see for yourself how much pride I take in my work to make sure you (the customer) is always happy with the finished work.
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Latest review:
Bricklaying- 26 Apr 2026
I posted my job on Friday evening, needed a small wall rebuilding. Phil fitted me in very quickly, came out to do the job Sunday, I also had some other bricks that had come loose on another wall, Phil sorted this out for me at No extra cost. Very happy with the work he has done and a very good price, not like some other quotes I have had, who were going to rip me off. He was very polite and professional, left my garden all nice and tidy. I would highly recommend Phil. Thank you again Phil. A very happy customer
Dominik Navratil
Rating: 5 out of 5
Extension Builder in Northampton
Blind fitter
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Latest review:
Handyman- 16 May 2026
Excellent, dominik got all.jobs complete and was very professional would hire again
Law Home improvements
Rating: 5 out of 5
Extension Builder in Northampton
Home Improvements Over 40 years experience, Father and Son Carrying out all aspects of building work including building, Carpentry, fitted kitchen, windows, bathrooms, wardrobes,
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Latest review:
Extensions- 25 Apr 2019
I liked him since the very first day, He was positive, attentive to details and more importantly He listened to what I wanted and gave his professional view on every Job I requested of him... He's trustworthy. Both me and my partner we very pleased for his works...

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.