Extension builders in Watford

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (12 reviews)

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Some of our top rated extension builders in Watford

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IP construction
Rating: 4.9 out of 5
Extension Builder in Watford
Hi I have 17 years in the building trade, i am a multi trader which i can cover carpentry and handy man jobs and all wet trades i.e rendering plastering,tiling,painting and decorating. Im honest and hard working and have good communication skills with other people. All my work i carry out and finish to the highest standard.
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Latest review:
Windows & Doors (Wooden)- 20 Jul 2024
Excellent
Construction
Rating: 4.4 out of 5
Extension Builder in Watford
Produce materials that adhere to architectural specifications. - Install floorboards, skirting boards, window frames, parquet flooring, doors, door frames, staircases, and built-in furniture. - Includes fixtures such as door handles and locks, cabinet handles, stair railings, and additional fittings in the design and execution. - Constructs temporary housing and support systems for concrete setting (shuttering). - Installs fire doors and implements fire stopping measures. - Installs metal beams. - Installs floor joists. - Works on roofing structures, roof tiles, and flat roofs. - Creates Velux openings if needed. - Completes loft conversions (first and second fix). - Performs house extensions (first and second fix, complete). - Acts as a medium bricklayer. - Constructs timber partitions, stud walls (first and second fix). - Installs plasterboard and completes dry lining. - Assembles kitchen units (completed). - Performs bathroom tiling and installs second fix accessories (tools required). - Installs gutters and rain channels. - Completes paving and decking.
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Latest review:
Carpentry- 14 Sep 2026
Fast, efficient and friendly.
UTALE
Rating: 4.7 out of 5
Extension Builder in Watford
UTI Ltd PLASTARING Drylining RENDERING General buildings
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Latest review:
Plastering- 12 Jun 2026
Great communication clear pricing and really good and effecient work. Will use again!
Pro builders
Rating: 5 out of 5
Extension Builder in Watford
Got 10 years experience in kitchen and bathrooms installation, plumbing and internal renovation
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Latest review:
Plumbing- 9 May 2019
Helpful, polite, tried best to resolve the mixer shower issue but the root problem is still to be sorted.
Danny builer
No reviews yet
Extension Builder in Watford
I’m available for work on new projects
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TAC Building
No reviews yet
Extension Builder in Watford
Tac Building is a building construction company based in Watford, Hertfordshire, and has operated throughout Watford, Harrow and surrounding area for over 15 Years, focusing on the delivery of small to medium sized alteration, refurbishment, and new-build projects. If you are looking for the builder to carry out your kitchen extension, either by extending to the side or the rear, or if you are after an extra bedroom with a bathroom at the loft, you can be certain we will deliver.
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FPA PROPERTY SERVICES LTD
Rating: 5 out of 5
Extension Builder in Watford
Here at FPA property Services LTD we pride ourselves on the prefect job, our company has grown in size due to our hard work & our outstanding standard of finish. we offer a bespoken services for any size job from the design stage to the complete build. We are proud members of the FEDERATION OF MASTER BUILDER & TRUSTMARK. The only Government Endorsed Quality Scheme. Our services cover commercial & domestic projects. We can take on any size job from a rental touch up to a complete new build.
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Latest review:
Extensions- 15 Oct 2020
Frankie is an excellent builder, he is professional, polite and courteous and he has completed our extension to a very high standard. He is incredibly hardworking and has finished the extension at pace, but with care and attention. I have no hesitation to recommend Frankie and indeed have already done so, to friends and family.
WOODHOUSE BUILDERS LIMITED
Rating: 4.8 out of 5
Extension Builder in Watford
Welcome to Woodhouse Builders Ltd, we cover all aspects of property maintenance and no job is too small or big for us. If it’s a small decorating job or full property renovation , loft conversion or extension , we are here to help and provide the best services possible . Our success is built on providing the best services and ensuring that all our customers are happy with our services.
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Latest review:
Extensions- 8 Aug 2026
Art and his team were great. He is such a nice person, was flexible and listened. The job was completed on time and within budget. I would hire Art again for sure.
Omran
No reviews yet
Extension Builder in Watford
With years of hands-on site experience, I specialise in all aspects of first and second fix carpentry from timber framing, roofing, and stud walls to doors, skirting, and precision interior finishings. I take pride in clean workmanship, accurate measurements, and delivering durable results that stand the test of time. Reliable, efficient, and dedicated to getting every detail right on the first pass.
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Carry on laying
No reviews yet
Extension Builder in Watford
My name is John,I’m 43 and live in Watford I have been bricklaying/landscaping for 23 years now. I have a good friendly team of professional tradesmen who are reliable and very hard working Over the years we have been involved various small and large projects,varying from garden works to new builds.we are also lucky enough to have been part of a number of film and media projects 🎥 We love what we do and always compete jobs to a high standard,we take great pride in every job we are lucky enough to be involved in
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AA UK Building Services Limited
No reviews yet
Extension Builder in Watford
We are experienced qualified builders with over 16 years experience in construction, electrical and plumbing services. Offering an extensive range of services to meet all your needs at a high level of quality and at competitive prices. We offer no obligation quotes and advice for all your building needs.
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Israel torres
No reviews yet
Extension Builder in Watford
Tiling, painting, block layer, drywall design,
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TEAM BBS
Rating: 5 out of 5
Extension Builder in Watford
Boasting a wealth of knowledge over 23 years experience. Team bbs is really the only choice you need to make your dreams a reality. No job to small. Building quality into your home. Friendly, trustworthy and honesty is the key to building a great working enviroment for us all. High end workmanship, problem solving & great design ideas are what most of our customers would describe us as.
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Latest review:
Conversions - General- 3 Oct 2025
Excellent works done to date. We were pleased with their reliability, efficiency and tidiness on the job. Pleased with their works and would definitely recommend for future works.
M j design and building ltd
Rating: 5 out of 5
Extension Builder in Watford
Construction.
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Latest review:
Extensions- 25 Jul 2020
Fantastic team, they took the idea I wanted and exceeded my expectations, fantastic job and fantastic team. I would highly recommend them to anybody.
T.M Construction.ltd
Rating: 5 out of 5
Extension Builder in Watford
TM Construction.ltd, established in 2007, is a trusted building company specialising in extensions, loft conversion,refurbishments, and general construction projects. With over 15 years of experience, the company is known for its high-quality workmanship, reliability, and customer-focused approach. From groundwork and structural works to finishing touches, TM Construction delivers complete building solutions on time and within budget.
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Latest review:
Roofing (Pitched)- 6 Mar 2026
Thomas was a pleasure to work with. Polite and accommodating. Would definitely hire him again.
Blueline Enterprise Limited
Rating: 5 out of 5
Extension Builder in Watford
Blueline Enterprise is a family run firm specialising in high quality refurbishments, extensions, conversions and new builds. We have undertaken various projects through professional architects and private clients. We a reputable building construction firm based predominantly in North West London.
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Latest review:
Blueline completed the work to the exact high standard i was hoping for, while remaining on budget and estimated timescales - the three things that were most important to us! They were punctual, practical, knowledgeable and willing to give advice when either needed or when something could potentially be improved. They were always available to talk through what was happening at every stage of our job, with any complications arising, and importantly solutions to any problems. They knew their stuff and got the job done without any hassle either. They even came back after the job was finished to shift some pipework which i had an extra requirement for. The best feedback i could give is that we will go straight to them for any work we require in the future, and have already recommended them to friends.

Top rated Extension Builders

Our Extension Builders in Watford, are rated 4 out of 5 based on 12 reviews from customers like you.

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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 Watford?

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

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

What are the hourly rates of extension builders in Watford?

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

Find extension builders in Watford with MyBuilder

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

Step 2: Compare different extension builders in Watford

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

Step 3: Hire Watford extension builders with confidence

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

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

What to ask a Watford extension builder before hiring?

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

An extension builder in Watford 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 Watford 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 Watford?

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 Watford 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 Watford 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 Watford

Can an extension builder in Watford help with planning permission?

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

Many Watford 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 Watford help with materials and finishes?

Yes, most extension builders in Watford 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.