Extension Builders in Hemel Hempstead

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.3 (10 reviews)

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Some of our top rated extension builders in Hemel Hempstead

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HR RENOVATIONS
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
HR Renovations cover all aspects of building renovations.
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Latest review:
Painting & Decorating- 2 Jul 2025
Would highly recommend HR Renovations. A massive thank you to Ben and his team. They did a fantastic job of renovating my house and I would definitely be using them again! I would highly Recommend HR Renovations.
Nms building ltd
No reviews yet
Extension Builder in Hemel Hempstead
Kitchen extension Loft conversion and internal alterations
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Thomas Houghton
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
Based in Chalfont St Giles, Tommy Custom Builds are your trusted local experts for all things building and renovation. From extensions and refurbishments to bathrooms and outdoor projects, we bring quality craftsmanship and a hands-on approach to every job. We're a busy, hardworking team—and that’s why you might not see much of an online presence. The truth is, we’re usually out on-site doing what we do best: building great spaces for great people. Our work speaks for itself, and our clients often come to us through word-of-mouth and long-standing relationships. If you're looking for reliable, skilled builders with a friendly attitude and a commitment to quality, give us a call. We’re here to help bring your vision to life.
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Latest review:
Carpentry- 15 Feb 2026
Thomas was brilliant On time, sheet coverage for nice clean job. New loft ladder fitted. Original entrance needed widening to accept new foldaway ladder. All carefully done. Thoroughly recommend Thomas. Smashing fella and sound worker.
Ellis Philip construction
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
We are Ellis Phillip construction LTD, a general building company from Buckinghamshire. Covering all aspects of building - New builds Extensions Renovations Re-furb Kitchens Bathrooms Bricklaying Carpentry Plumbing Electric
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Latest review:
Landscaping- 12 Jan 2021
Brady and the lads did a fantastic job building me a fully insulated rendered block garden room. I went for Ellis Phillip because both Brady and Andrew are genuinely decent and trustworthy guys. They were tidy from the onset and even covered my whole driveway in a layer of board and plastic sheet before the job started to prevent and damage and mess. Good quality of work and finish. Brady uses the same teams (eg plasterers, electrician, etc) for his jobs and they all work well together and communicate all aspects of the job with each other which helps alot. Nothing was too much trouble - we made numerous last minute changes throughout the job and he was happy to accommodate them. Job finished in a decent time scale. We're extremely pleased with the finished result and would definitely use again and recommend to friends and family.
Joe Hilley
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
St Albans Brickwork specialise in all elements of residential and commercial brickwork construction projects. Our skills cover a wide-range of projects, home extensions and renovations, driveways & patios, garden walls, repointing, garage conversions and large building contracts. With more than 15 years’ experience in constructing new homes and delivering home improvements throughout St Albans, we are well equipped with the expertise to complete any size job to the highest possible standard.
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Latest review:
Repointing- 29 Jun 2017
Joe did an excellent job with our garden steps, despite the fact that we initially messed him about with timing of the job. He got the work done by our deadline, to a high quality, and for a good price. Highly recommended.
Buckingham and sons ltd
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
We are family run business established over 10 years ago covering London in all aspects of building work and property maintenance. We pride ourselves on honest work and good ethics and look forward to working on your next project.
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Latest review:
Restoration & Refurbishment- 10 Jul 2026
Calm, collected and reassuring. J took all the pressure of me - completed all the work in a timely manner to the highest of standards. I really like how he took care of things that I didn't think of. He gave me lots of options about other requirements and where we could save on costs. Really highly recommended!
BMS Landscaping & Paving
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
Services we offer… ▪️Driveways, Patios and paths - concrete, tarmac, sandstone, porcelain, victorian style tiled paths ▪️Brickwork, walling, steps ▪️Fencing and gates ▪️Landscaping, drainage and groundworks ▪️Porches and extensions ▪️Garden clearances ▪️Man and machine hire - mini/micro diggers, dumpers and concrete crusher 🔸We are a friendly skilled team with over 20 years of experience. 🔸No short cuts made, all of our work is done to a high standard for long lasting results. 🔸 Registered Tobermore and Brett paving installers. 🔸 Trustatrader member. 🔸Offering free no obligation quotes. 🔸No deposit needed to get started. 🔸Free full written quotes emailed directly to you. 🔸Guarantees.
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Latest review:
The job entailed removing decking from the patio area of the rear garden, removing the existing lawn and existing paving path and paved area at rear end of garden. Perry and his team then levelled all the soil and laid a new lawn, new Italian porcelain to the patio area, the pathway and a secondary patio area at the rear of the garden. All the work was carried out in a professional manner, the workmanship was excellent as was the reliability.
Potja ltd
Rating: 4.9 out of 5
Extension Builder in Hemel Hempstead
We are a reliable and experienced landscaping and building company, specialising in transforming outdoor spaces and enhancing homes. Our services include patios, driveways, landscaping, and home extensions, all completed to a high standard with attention to detail. We take pride in delivering quality workmanship using durable materials, ensuring every project is built to last. Whether you’re looking to create a new patio, install a driveway, redesign your garden, or extend your home, we work closely with our clients to bring their vision to life. Customer satisfaction is at the heart of everything we do. We are committed to providing honest advice, clear communication, and a professional service from start to finish.
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Latest review:
Landscaping- 2 Sep 2026
Great work.
R Nayler Construction Ltd
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
Hi I am Richard together with my son Andrew we are R Nayler Construction. I have traded as R Nayler Construction since 1987. Before that I worked with my father and brother in the building industry under A Nayler & Sons. We undertake works for private and commercial clients.
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Latest review:
Extensions- 19 Dec 2017
Richard and Andrew were excellent from beginning to end. The estimates were accurate and they came in on budget and finished on time. The work was done to an excellent standard with great attention to detail and no cutting of corners. They were considerate and helpful and tidied up at the end of each day. They were also friendly and we had many comments from our neighbours about how friendly and pleasant they were. They were also very helpful with last-minute changes that we needed and made suggestions for how things could be done better and more cost effectively. They even looked after our dog during the day, letting her out when we were not home. I would recommend R. Naylor Construction if you need a good job done to a high standard by someone who is friendly, knowledgeable and considerate.
Pgm grup services ltd
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
Welcome to PGM GRUP SERVICES LTD . We are a professional and reliable groundworks and landscaping team dedicated to transforming and maintaining your outdoor spaces to the highest standards. With extensive experience in all aspects of ground engineering and hard landscaping, we pride ourselves on delivering top-quality craftsmanship, durable structural work, and competitive pricing. No matter the scale of the project, we treat every property with maximum respect, ensuring clean, efficient, and precise execution from start to finish. Our Specialist Services Include: Driveways & Paving: Block paving, resin, concrete, and pathways built to last. Fencing & Edging: Secure, high-quality fencing installations and neat perimeter edging. Brickwork & Walling: Professional bricklaying for garden walls, retaining walls, and boundaries. Drainage & Eco Channels: Complete drainage solutions, surface water management, and eco channel installations to prevent flooding. All Groundworks: Excavation, site clearance, foundations, and sub-base preparation. Why Choose Us? Guaranteed Workmanship: Fully committed to structural safety and flawless finishes. Honest & Fair Pricing: Transparent, free, no-obligation quotes with no hidden costs. Reliable & Tidy: We arrive on time, work efficiently, and always leave the site spotless. We are fully insured and ready to bring your project to life. Contact us today to discuss your requirements!
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Latest review:
Landscaping- 13 Aug 2026
Easy 5* review! PGM services restored my old flagstone patio that had fallen into complete disrepair. Petru was really friendly and communicative. He arrived at the agreed time to look at the site, he listened to what I wanted and even suggested some great ideas. He later sent a quote with various different options allowing me to choose the price point that worked best for me. Something I especially valued was that, throughout the job, he kept me updated and consulted me whenever a decision needed to be made (e.g. when choosing the colour of the pointing). He respected and supported my choices even when it wasn’t the easiest option for him and his team. His team did a great job! They are trustworthy and reliable. They arrived on time, got the job done and I’m really pleased with the final result. Would definitely use PGM services again!
GHB Properties UK
No reviews yet
Extension Builder in Hemel Hempstead
We are a design and build company specialising in domestic extensions , we can take care of your project from start to finish, from planning and obtaining permission all the way through to building control to actually building your extension. We are based in Hertfordshire and we cover most areas within M25 and surrounding areas
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Bull&Chisel
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
We are an experienced business focusing on all building, renovations, kitchen and bathroom fitting as well as painting. Feel free to view our web page and request a free quote.
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Latest review:
I was planning an extension to my kitchen, which included a complete refurbishment and the addition of a shower room. I also needed somebody to coordinate all aspects of the project, including recruiting the right resources for the building work, electrics etc. I was extremely pleased that Bull & Chisel were recommended to me. From the start, Bryan and Warren gave me the confidence that they were able to complete the project to my satisfaction. They were happy to continue working with me throughout and they liaised effectively with partners they brought in at key stages to ensure that each task was completed to my satisfaction. As for their own work, I cannot fault them. There are always unexpected challenges that arise in these types of project. Bryan & Warren consider these very carefully before providing a solution. They pay close attention to detail and that has resulted for me in a super new space. I highly recommend Bull & Chisel and have already asked them to sign up for more projects in the near future!
Dineen Construction LTD
No reviews yet
Extension Builder in Hemel Hempstead
Cover all aspects of plumbing! From bathrooms to full installs. Leaks, toilets etc Been in the construction industry for over 10 years
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MB and son brickworks
No reviews yet
Extension Builder in Hemel Hempstead
Bricklayer by trade I also do block paving slab laying edges and kerb laying
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Reian construction ltd
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
Reian construction ltd , we covered all aspects of work extension renovation, loft basement, build and design
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Latest review:
Extensions- 15 Sep 2022
Besim and his team carried out some structural steel work on our home while we were away. I was a little nervous about this but the communication was excellent, as Besim sent regular pictures and updates on the progress. The completed work was first class and the team even did some small jobs outside the original remit which was a very kind gesture. WIll certainly use Besim again and would highly recommend him to anyone.
DESIGN LAYOUT & BUILD LIMITED
Rating: 5 out of 5
Extension Builder in Hemel Hempstead
Design Layout and Build Ltd wants to offer its customers quality work for fair prices. For any project we provide a minimum of 12 months warranty. For this we always use quality materials and skilled craftsmen. We are polite, friendly and have great experience in our trades. Our team is eager to complete your projects!
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Latest review:
Carpentry- 12 Sep 2015
We were extremely pleased with Daniel and his colleague's work. Daniel gave me a fully costed quote promptly, answered emails quickly and was knowledgeable about what needed to be done. They were punctual, polite and very hardworking. The work was done to a high standard and I would not hesitate in recommending them to others.

3.3

Top rated Extension Builders

Our Extension Builders in Hemel Hempstead, are rated 3.3 out of 5 based on 10 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.