Extension Builders in Hemel Hempstead

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.5 (11 reviews)

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Some of our top rated extension builders in Hemel Hempstead

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Sefolli
No reviews yet
Extension Builder in Hemel Hempstead
We know it can be hard to find a builder that you can rely on. The owner, Artur Sefolli (F) has a wealth of experience and is known as one of the best builders. We pride ourselves on providing a professional, caring and high-quality service and always meet our customers’ needs. Sefolli Building is fully experienced, timekeeping, quality of work and value. We offer a full range of building services, from major rebuilds to smaller jobs such as masonry repairs Our services include: Alterations Extensions Basements Garages Brickwork Roofing Services Driveways Gardening Groundworks Excavation Foundations External Works Underpinning Concrete Screeding Flooring Painting Decorating Fences Paving Landscaping Re-pointing Soakaways Manholes Drainage If you are trying to find a builder near you, why not give us a call? Our friendly, professional team will be happy to talk through your needs and give you a free quote.
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MEMA ELECTRICS & CONSTRUCTION LTD
Rating: 4.9 out of 5
Extension Builder in Hemel Hempstead
Mema Electrics & Construction Ltd offers customers a fair price, a friendly and accommodating service and will deliver electrical & Building services of the highest standard.
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Latest review:
Restoration & Refurbishment- 25 Mar 2018
Great guys. Tidy, polite and flexible with our timing and schedule. Lovely bathroom when they were done. A bit more attention to detail on some of the tiling would’ve been great, but they were slightly awkward mosaic tiles that I had chosen. And when I mentioned it they were more than happy to replace the tiles I wasn’t happy with. Artan’s electrical work (full house rewire) was considerate of our needs and requests. He worked quickly to get it done for our move in date and we were very pleased! Lovely guy and he had a very good team working for him!
Tigarconstruction Bathrooms & Kitchens
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
We are a 2 man team with 25 years experience between us. We specialise in bathroom and kitchen fitting. Between us we can provide the complete install. We can provide all the trades needed to get the job done. Gas safe engineers and fully qualified electricians.
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Latest review:
Tiling- 21 Aug 2025
Matt's communication was good throughout, from the quote stage to finishing things up. He was helpful, clearly keen to do a good job, and discussed things he felt were relevant as the job progressed. Most importantly, the tiles look amazing, my kitchen is transformed!! Highly recommended.
SJC Construction & Interiors
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
SJC Construction & Interiors, Is a family ran construction company based in Rickmansworth, Herefordshire. we pride ourselves on top quality work , completed by our expert tradesman, to specification and on budget time and time again.
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Latest review:
Extensions- 22 Dec 2021
We could not be happy with the work that has been done by SJC Construction. They have gone above and beyond and very true to their word! The work was completed to a high standard in exactly the quoted time frame, exactly to the quoted price! They have made the whole process stress free and genuinely are a lovely group of guys, polite and efficient! Will be continuing to use them now for the rest of our work on our property and would be our first choice if in the future any more building work/ renovations need to be done :)
Kev home improvement
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
15+ years of building experience ! We are new on MyBuilder Garden design Paving, Driveway specialist Foundation Porch Extension General building Complete refurb
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Latest review:
Landscaping- 24 Jun 2025
Razvan and his team were incredible! Really polite, lovely guys. Kept the site clean and tidy. Did an incredible job - absolutely in love with our new patio!! Cannot recommend enough!
Luna Construction
No reviews yet
Extension Builder in Hemel Hempstead
We are a newly formed firm but we don’t lack in experience and have been taught by some of the best. We specialise in any type of brickwork, especially new builds and extensions. As well as the quality of work we produce, you’ll find us a pleasure to be around and when the job is finished you’ll notice how clean and tidy we keep your home.
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Made Innovate Constuction & Reform
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
We are what we would like to call a complete construction company. Due to many years of success and co-projects, we partnered with a Structural Engineer to provide a hassle-free, top-notch service and projects. We have over 30 years of experience with a team of experts who specialize in construction management, design, and build services.
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Latest review:
Andre undertook a seemingly impossible task within my own home. They transformed my down stairs storage in a w.c, the gas lines were repositioned, he and his tem also built an outdoor storage area. Their honesty, dedication, and commitment to finding the best solutions both in terms of cost and quality were truly exceptional, they transparently outlined the challenges and worked tirelessly to deliver results that went beyond expectations. I totally recommend Andre and his team if you are looking for a highstandard professioanal that really cares about people and getting the job done!
Emmar Brickwork
Rating: 4.8 out of 5
Extension Builder in Hemel Hempstead
I've been working as a bricklayer supervisor in various construction sites for big brickwork company. I done different types of brickwork projects, brickwork on concrete frame/timber frame, blocks of flats or houses in different places for different contractors like London Square, Rydon, Quadrant. Taylor wimpey I have experience in all sort of brickwork and projects including house extension and new build. Im looking to build a name for myself by making quality work my priority
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Latest review:
Bricklaying- 12 Sep 2024
Always turned up Excellent work Easy to talk to Would recommended to any one Alex Harris
Lead Renovations Ltd
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
Refresh Renovations is changing the way the world renovates. Prioritising communication and transparency mitigates the pitfalls associated with stressful and poorly executed renovations. Our approach focuses on thorough planning and streamlined communication to deliver a stress-free and enjoyable renovation with fantastic results you can be proud of.
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Latest review:
Great work and very professional. Organisation and communication were top tier plus the finished work and tidiness were unmatched. 100% recommended.
Antal karoly
Rating: 4.5 out of 5
Extension Builder in Hemel Hempstead
We are in the construction market since 15 years now covering all trades as being general constructors. We do loft conversions, extensions, full house refurbishment, bathroom and kitchen refurbishment, garage conversions and many more. We are a customer focused people as they happiness and satisfaction makes us proud of what we do.
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Latest review:
Restoration & Refurbishment- 3 Dec 2024
Antal was very punctual and explained everything about the job before commencing with the job. Antal and his team got the job done within the requested budget and with quality work.
SS Carpentry
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
I have done jobs from shelving to roofing.I have a good job knowledge and I have ran big site. I have been a carpenter for 6 year and normally do first fix work but I can do second fix , kitchen fixing and plasterboard. I have all the tools to do the jobs with.
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Latest review:
Carpentry- 28 Aug 2018
Steve is punctual, easy to work with, hard working with all the skills, knowledge and experience to efficiently produce a successful result- replacing old floorboards and removing squeaks in steps- recommended and known from this job alone.
UK NAMA Constructions Ltd
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
Garden Fencing, Garden Decking, Artificial Grass, Wooden Floor Laminating, Decorating, Partitions.
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Latest review:
Carpentry- 28 Jan 2026
Ali did an exceptional job designing and building our staircase, and I couldn’t be happier with the result. From start to finish, he was a complete gentleman — polite, respectful, and a pleasure to deal with. Ali is clearly a true specialist at what he does. His knowledge, attention to detail, and confidence in his craft really stood out. He was able to design and install the entire staircase in just one day, which was genuinely impressive given the quality of the finish. He worked efficiently, kept the area tidy, and took great pride in his work. It’s rare to find someone who combines skill, professionalism, and good nature so well. I would highly recommend Ali to anyone looking for a high-quality staircase installed by a true expert.
Mag Design & Build
No reviews yet
Extension Builder in Hemel Hempstead
At Mag Design & Build we pride ourselves on quality of work and the finished job. We take on all building work. Free quotes and easy option payment plans make the process simple and easy to work with.
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Ethan ansell
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
Hello im Ethan, a fullyqualified bricklayer with 15 years experience of erecting brickwork. I am very proud of every job i have carried out and i build with pride. I ensure nothing less then the highest quality of work and a fully satisfied customer. I look foward to building for you whoever you are.
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Latest review:
Bricklaying- 8 May 2021
Ethan did an excellent job for us today. Very impressive brickwork. Nice friendly guy and left the place clean and tidy after finishing. Will not hesitate to use him again for future work.
Peach brickwork
No reviews yet
Extension Builder in Hemel Hempstead
Hertfordshire based family business with over 40 years combined experience. Specialists in extensions and new builds.
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Oliver Building Services Limited
Rating: 4.8 out of 5
Extension Builder in Hemel Hempstead
About Oliver Building Services Ltd, have been fitting kitchen and bathrooms for many years. We pride ourselves on being the go-to bathroom fitters for discerning . We specialise in all bathroom fitting and design services including: Please feel free to get in contact and we will be more than happy to come round to quote •Extension •Kitchen •Bathroom •Installation •Showers •Plumbing •Tiling •Plastering •Electrical •Painting & Decorating • Loft conversion •Roofing
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Latest review:
Kitchen Fitting- 27 Nov 2024
We decided to fit a new kitchen in our tenanted house all done remotely via Australia. We are very pleased with the final kitchen and credit to Oliver for staying committed to the job. He communicated well throughout the process and as a result there were no surprises. This was not an easy process as we were dealing with a difficult tenant that we were trying to remove at the time. As a result the new kitchen was fitted but Oliver had to come back months later to finish the job. I know this was frustrating for him but with mutual respect and trust we got the job finished and I thank him for his patience and honesty. Would recommend his services.

3.5

Top rated Extension Builders

Our Extension Builders in Hemel Hempstead, are rated 3.5 out of 5 based on 11 reviews from customers like you.

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What types of services are offered by local extension builders in Hemel Hempstead?

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 Hemel Hempstead 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 Hemel Hempstead who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Hemel Hempstead?

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

Find extension builders in Hemel Hempstead with MyBuilder

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

Step 2: Compare different extension builders in Hemel Hempstead

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

Step 3: Hire Hemel Hempstead extension builders with confidence

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

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

What to ask a Hemel Hempstead extension builder before hiring?

Before hiring an extension builder in Hemel Hempstead or extension building company in Hemel Hempstead, 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 Hemel Hempstead?

An extension builder in Hemel Hempstead 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 Hemel Hempstead 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 Hemel Hempstead?

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 Hemel Hempstead 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 Hemel Hempstead 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 Hemel Hempstead

Can an extension builder in Hemel Hempstead help with planning permission?

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

Many Hemel Hempstead 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 Hemel Hempstead help with materials and finishes?

Yes, most extension builders in Hemel Hempstead 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.