Describe your job with details to view a tailored list of tradespeople.
Post your job

Extension Builders in Northamptonshire

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

How it works

Post your job for free

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

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

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 Northamptonshire

434 Results

Sort by:

  • Extension Builder in Northamptonshire

    Hi, i am professional builder have almost 6 year experience. My expertise is in brick and block masonry, architecture drawings. like drawing for house extensions that is used for councils approval. Repair and extension work of houses.

    Get in touch
  • Extension Builder in Northamptonshire

    Hi, i am a self employed builder and i can do alot of things by myself in building trade so i can say i can be less hassle to deal with as compared to other builders i always try my customers to make them happy and do work as they want..i have good references as well if anyone ask for it...

    Get in touch
  • Extension Builder in Northamptonshire

    Bird Construction are a professional company that strives to give builders a good name. We are members of the Federation Of Master Builders, who vet our work in order to provide an assurance of quality to our customers. Our work can be covered by a 10 year warranty on materials and labour, giving peace of mind. This warranty can be passed on to any new owners of your property. Bird Construction builds it success upon providing a quality service throughout. We understand how a project can be a disruption to your every day life and aim to minimise this as much as possible. We can provide plans and submit them for planning approval and building regulations. Free no obligation quotations provided. Full liability insurance.

    Get in touch
  • Extension Builder in Northamptonshire

    To sum up ‘Lux Heritage Homes’ we our a professional building outfit with a commercial DNA but cater for the domestic market primarily carrying out works for alterations, extensions and one of builds.

    Get in touch
  • Extension Builder in Northamptonshire

    experienced plasterer, decorator and builder. No job is too small or too big. Had a team of skilled tradespeople.

    Get in touch
  • Extension Builder in Northamptonshire

    At Jones&Pratt Construction Ltd, we deliver exceptional craftsmanship across the Midlands, specialising in high-quality bricklaying, groundworks, and landscaping for discerning residential and commercial clients. Built on precision, reliability, and an uncompromising attention to detail, we create refined outdoor and structural spaces finished to the highest standards. From bespoke brickwork and premium groundworks to luxury landscaping, patios, driveways, and complete external transformations, every project is approached with professionalism, care, and a commitment to excellence. At Jones&Pratt Construction Ltd, quality is not just expected — it is built into every detail.

    Get in touch
  • Extension Builder in Northamptonshire

    We help bring your plans to reality. Innovative Solutions Industry expertise Multidisciplinary Collaboration

    Get in touch
  • Extension Builder in Northamptonshire

    RJ Construction is a reliable, skilled, and customer-focused building company delivering high-quality workmanship across all aspects of construction and property improvement. With years of hands-on industry experience, we specialise in roofing, refurbishments, extensions, and structural work, providing durable solutions built to last. Our team is committed to professionalism, clear communication, and exceptional standards on every project—whether it’s a small repair or a full renovation. At RJ Construction, we take pride in doing things the right way, using trusted materials and proven techniques to ensure the best results for our clients. We believe in honesty, transparency, and craftsmanship you can rely on. From initial consultation to project completion, RJ Construction ensures a smooth, stress-free experience with a strong focus on safety, efficiency, and customer satisfaction. RJ Construction — Building with integrity. Delivering with pride.

    Get in touch
  • Extension Builder in Northamptonshire

    At KCL, we specialize in providing top-quality concrete construction services designed to bring strength, durability, and reliability to your projects. Whether you need a solid foundation, a custom driveway, or decorative concrete finishes, our skilled team is here to deliver exceptional results that stand the test of time. We pride ourselves on attention to detail, superior craftsmanship, and a commitment to exceeding your expectations. From start to finish, we work closely with you to ensure your vision becomes a reality. Choose KCL for reliable, professional concrete solutions that you can trust.

    Get in touch
  • We are a expanding company with great talent and great connections ! We have ongoing projects and we are looking to expand and add new clients to our portfolio! Thank you

    Get in touch
  • Extension Builder in Northamptonshire

    Architecture services

    Get in touch
  • Extension Builder in Northamptonshire

    B2B Brickwork was established in 2023 after 10 years of working with eachother on construction sites. We are hard working and dedicated builders who have a can do attitude. We are family men who want to do the best to our abilities and ensure the customer is ecstatic with the finished product, we believe word of mouth is important so being proud of our work is what we pride ourselves on.

    Get in touch
  • Extension Builder in Northamptonshire

    Here at JFH Solutions Ltd we are predominantly a plumbing and heating business offering Gas, Oil and renewable heating installations, repairs and servicing. We also carry out the usual plumbing from refurbishing your bathroom to changing your kitchen tap. We also carry out building contracting as we have built up quite the experience from small building jobs to building houses for our clients.

    Get in touch
  • Extension Builder in Northamptonshire

    is a masonry company, which operates in commercial projects and private works, with workers with over 10 years of experience. The company also owns a 1.6 ton mini digger and a 500kg dumper truck, which helps us in private works for digging foundations and other excavation works. If you want to view our works, you can find us on the TikTok profile with the name @adanltd

    Get in touch
  • Extension Builder in Northamptonshire

    OWS Construction specialises in a broad range of groundwork and civil engineering services. We handle essential preparatory and foundational tasks for various construction projects, ensuring infrastructure is properly laid out before the main build takes place. Their scope includes: Car parks: Constructing and preparing parking areas. Curbing: Installing curbs and edges for roads or pathways. Drainage: Designing and installing systems for effective water drainage. Utilities: Installing essential services like water, gas, and electricity lines. Concrete: Pouring and setting concrete for foundations, pavements, or other structures. Roads and sewers: Constructing and maintaining road networks and sewer systems. Footings and formwork: Laying the Laying the foundational supports and molds for concrete pours. Steelwork: Installing steel reinforcements for structures. Shuttering: Creating temporary molds for poured concrete. General developer work: Other tasks required by developers to prepare sites for building projects.

    Get in touch
  • Extension Builder in Northamptonshire

    Hi my name is Gaz, I do extensions from start to finish, loft conversion, Garden refurbishment and patio, Best prices around guaranteed Don’t hesitate to give me a call

    Get in touch

4.5

Top rated Extension Builders

Our Extension Builders in Northamptonshire, 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 Northamptonshire?

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

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

What are the hourly rates of extension builders in Northamptonshire?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Northamptonshire will charge between £16 and £42 per hour.

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 Northamptonshire extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Northamptonshire home extension project is likely to cost.

Find extension builders in Northamptonshire with MyBuilder

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

Step 2: Compare different extension builders in Northamptonshire

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

Step 3: Hire Northamptonshire extension builders with confidence

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

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

What to ask a Northamptonshire extension builder before hiring?

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

An extension builder in Northamptonshire 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 Northamptonshire 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 Northamptonshire?

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 Northamptonshire 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 Northamptonshire 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 Northamptonshire

Can an extension builder in Northamptonshire help with planning permission?

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

Many Northamptonshire 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 Northamptonshire help with materials and finishes?

Yes, most extension builders in Northamptonshire 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.

Other tradespeople in Northamptonshire

Cities