Extension Builders in King's Lynn

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Some of our top rated extension builders in King's Lynn

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Oathstone Ltd
No reviews yet
Extension Builder in King's Lynn
At Oathstone, we specialise in the design and build of high-quality garden studios, extensions, and conversions. Our focus is on creating spaces that feel like a natural extension of your home, whether that’s a garden studio, garage conversion, or additional living space. We handle projects from initial design through to completion, including structural work, insulation, electrics, plumbing, and internal finishes. We take a practical, honest approach to each project and work closely with clients to ensure everything is built properly, complies with regulations, and is finished to a high standard. If you’re looking for a reliable team to bring your project to life, we’d be happy to take a look and provide a clear, detailed quote
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Munns build
No reviews yet
Extension Builder in King's Lynn
My name is Joe I run a small family run company called munnsbuild. We cover all aspects of building and maintenance work and specialise in carpentry.
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Mcelligott building ltd
No reviews yet
Extension Builder in King's Lynn
Mcelligott Building ltd has been trading for over 15 years. Undertaking commercial and residential projects, from shop schemes, new builds, extensions and renovations to a high quality. We have worked alongside numerous architects and have regular customers through our work. We are a member of the federation of master builders.
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L&S Projects
Rating: 5 out of 5
Extension Builder in King's Lynn
Friendly Family Run Business with over 10 years experience in Building and Groundworks we are fully insured Guarantee all our work
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Latest review:
Groundwork & Foundations- 4 Aug 2021
Very good friendly service with a very high standard thank you
Newton builder
No reviews yet
Extension Builder in King's Lynn
Flint and brick specialists Looking for Brickwork Garden walls Flint work Exstention Re-pointing New build Patios I cover all aspects or building work and take pride
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RMC BUILDING
No reviews yet
Extension Builder in King's Lynn
Hi My name is Richard I have been running RMC Building for 20 years,we have a small team of highly experienced and skilled tradesmen/women we carry out all aspects of: -Renovation/restoration -Carpentry -Plastering -Painting and decorating -Property maintenance
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Jm creative construction
No reviews yet
Extension Builder in King's Lynn
Experienced builder with over 20 years in the trade, delivering high-quality workmanship across a wide range of projects. Known for a meticulous eye for detail and a commitment to excellence from start to finish. Reliable, professional, and dedicated to bringing clients’ visions to life with precision and care.
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total home solutions
No reviews yet
Extension Builder in King's Lynn
We have experience in new build homes and extensions. Inc excavations ground work. All aspects of brickwork carpentry all first and second fix. We have all trades available to complete your project. And are very happy to guide you through planning applications and help with building regulations. We have a close relationship with a local structural engineer to help with super structure design. We aim to get your project finished on time and on budget,ensuring that you will be happy at the end of the project .
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BRIDGESTONE DEVELOPMENTS
No reviews yet
Extension Builder in King's Lynn
All elements of the building trade.
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Tcivils
No reviews yet
Extension Builder in King's Lynn
Customer satisfaction is our priority.
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B H construction
No reviews yet
Extension Builder in King's Lynn
Hello, I'm Ben, a fully qualified professional with over 15 years of experience in all aspects of brickwork, plastering, and groundworks. At B H Construction, we've successfully completed a wide range of projects, from the restoration of listed buildings to new builds and garden renovations. Contact us anytime for a free quote and let us bring your vision to life.
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LTS Consultancy ltd
Rating: 5 out of 5
Extension Builder in King's Lynn
LTS Consultancy - Concept to Completion. Main Contractor, General Builder, Groundwork, Bricklayers. We have the ability to transform your ideas into living your dreams. Our very keen eye for quality can be used from room or garden refurbishments to small residential developments. Every project we aim to be on time, on budget and on your Christmas card list. The expertise can be hand picked for your project. If we don’t have them we can find them. Call and commit the diary is filling quick.
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Latest review:
Extensions- 22 Oct 2019
Lee called me to explain that I will need to make sure I have the correct planning permission (no existing clauses) for the addition to the already existing extension. I am really glad he gave me the advise so to not waste anyone’s time and money including my own. Really thoughtful and welcomed advise, thanks.
Birch Construction EA LTD
No reviews yet
Extension Builder in King's Lynn
At Birch Construction we work closely with our clients to ensure we make they're vision a reality. We have an amazing team of high quality and experienced trades to suit all aspects and need of any building work required. We specialise in Listed renovations, High end renovations and extensions and more.
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CHARMILLS LIMITED
Rating: 5 out of 5
Extension Builder in King's Lynn
CHARMILLS LTD is a professional intuitive Modern Construction Company that can help you with your planned projects, we offer full LABC 10 Year warranties on all our works installed/carried out by us due to our membership credentials we also offer All risk insurance cover giving you confidence that the work is carried out correctly and will surpass minimum building regulations standards. We are on several platforms where we can be found/contacted if required. Charmills Ltd
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Latest review:
Electrical- 11 Feb 2019
I can't rate David (Charmills Ltd) highly enough. Thoroughly professional from initial visit and quotation, right through to the completion of the job. Good communication and advice made him the right choice. Excellent knowledge and great workmanship made the whole installation go as planned. Great timekeeping and a brilliant price just topped it all off. If you need an electrician, look no further than David. I will definitely be using his extensive electrical skills again on future projects. 10/10
Hawksure Developments
Rating: 5 out of 5
Extension Builder in King's Lynn
My name is Kelvin Rees and I run a company called Hawksure Developments. We offer a variety of services within the building sector, from specialist cabinetry work to loft conversions through to complete new builds. We pride ourselves on customer care, quality and attention to detail. Thank you.
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Latest review:
Extensions- 27 Nov 2025
We used kelvin and Brandon to complete a conversion of a carport/garage into a Wet room, bedroom, utility, kitchen resize and the construction of a new porch. We couldn’t be happier with the work carried out by them. They handled the whole job professionally, tidily and completed almost everything themselves from groundwork’s right up to carpentry, electrics, plumbing etc with high attention to detail. Kelvin was very good at explaining everything daily and was always happy to give advice on some parts of the project we completed ourselves. We would very much recommend Hawksure developments.
UPWELL BUILDER
No reviews yet
Extension Builder in King's Lynn
I have more than 35 years experience of working in the building trade in Kent and have recently moved to West Norfolk. I can do extensions, ground works, drives, patios, fit kitchens and bathrooms, roofing flat or pitched and plastering. No job too small and happy to give advice and free quote.
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What types of services are offered by local extension builders in King's Lynn?

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 King's Lynn 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 King's Lynn who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in King's Lynn?

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

Find extension builders in King's Lynn with MyBuilder

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

Step 2: Compare different extension builders in King's Lynn

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

Step 3: Hire King's Lynn extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in King's Lynn, 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.

King's Lynn extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a King's Lynn extension builder before hiring?

Before hiring an extension builder in King's Lynn or extension building company in King's Lynn, 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 King's Lynn?

An extension builder in King's Lynn 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 King's Lynn 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 King's Lynn?

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 King's Lynn 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 King's Lynn 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 King's Lynn

Can an extension builder in King's Lynn help with planning permission?

Yes, many extension builders in King's Lynn 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 King's Lynn handle everything from design to construction?

Many King's Lynn 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 King's Lynn help with materials and finishes?

Yes, most extension builders in King's Lynn 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.