Extension builders in Watford

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (11 reviews)

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Some of our top rated extension builders in Watford

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S S T Construction UK Ltd
Rating: 4.8 out of 5
Extension Builder in Watford
We got skillfull team.I have 16 years experience.
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Latest review:
Extensions- 29 Jul 2025
Reliable, professional, and tidy throughout the entire fitting process. They transformed our old bathroom into a sleek, functional space. Very impressed with the service and would definitely use them again!
MH Styles. Ltd Ltd
No reviews yet
Extension Builder in Watford
Very good job
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JKBC
Rating: 5 out of 5
Extension Builder in Watford
By having 20 years of experience in the business, no job is too challenging. My team specialises in both small scale repairs and decorating, as well as major projects such as refurbishments, extensions, and home renovations.
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Latest review:
Jerzy carried out several jobs for us. He has completely refitted our bathroom, he's rebuild a wall, laid front of house path, restored old front door, installed solid wall internal insulation, rebuild window frames, plastered a room and few other bits and pieces. He is extremely reliable and trustworthy. He's always been on time, works really hard and has always been honest about things and up front with any issues. Always consulted us for possible solutions. His work is to the highest standard and if I want a job done well, I always go to Jerzy.
Graal Structural Engineering Ltd
Rating: 5 out of 5
Extension Builder in Watford
We offer Structural Desing and Calculations for New Build, Extensions, Loft Conversions, etc. Detailed drawings and calculations for Building Control. We offer one-stop-shop services including, planning applications, architectural & structural design, cost estimations, project management and construction works.
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Giza Solutions LTD
No reviews yet
Extension Builder in Watford
Giza Solutions is renowned for its exceptional performance in executing and completing a wide range of domestic and public development projects with utmost excellence. With a wealth of experience and expertise, we have perfected our craft in a wide range of endeavors, from modest home renovations to lavish architectural ventures. Our unwavering commitment to our company values is evident in everything we do.
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Kamcio
Rating: 5 out of 5
Extension Builder in Watford
Hello, I’m Kamil Ladniak, a dedicated and experienced Polish tradesman, specializing in domestic refurbishment projects. With over 20 years in the industry, I bring a wealth of knowledge and skill to every project I undertake, ensuring the highest standards of craftsmanship and customer satisfaction. I offer a wide range of services tailored to meet your needs, including: • Complete Bathroom Renovations: From initial design to final installation, I can transform your bathroom into a luxurious, functional space. I handle everything from plumbing to tiling, ensuring a seamless process. • Complete Kitchen Renovations: I offer full kitchen refurbishments, including installation of cabinets, countertops, appliances, plumbing, and tiling. Whether you’re updating an old space or designing a new one, I’m here to bring your vision to life. • Carpentry: I specialize in bespoke woodwork, from custom-made wardrobes and cupboards to shelving, doors, and more. If you’re looking for unique, high-quality carpentry, I’m the right person for the job. • Plumbing: With experience in both small repairs and large installations, I can take care of all your plumbing needs—from fixing leaks to installing new plumbing systems for bathrooms or kitchens. • Tiling: Whether it’s a kitchen backsplash, bathroom floor, or feature wall, I provide expert tiling services, ensuring a neat and professional finish every time. • Full Home Decorating: I offer comprehensive decorating services, including painting, wallpapering, and plastering, to give your home a fresh, updated look. • General Domestic Works: I also handle a variety of general domestic projects, both internal and external, including patios, conservatory installations, and fencing. If you need help with any other home improvements, I’m happy to assist. What sets me apart is my commitment to quality. I’m punctual, hardworking, and always strive to exceed my clients’ expectations. I pride myself on delivering results that not only meet but often surpass the standards of my clients. In addition to my skills, I also have trade accounts with well-known suppliers such as Howdens and Topstiles, which allows me to offer you significant discounts on kitchen materials, tiles, and more. Free Inspection & Quotation I offer free, no-obligation inspections and quotations, which you are welcome to compare with other tradespeople. I believe in transparent pricing and providing you with all the information you need to make an informed decision. If you’re ready to start your project or need more information, please don’t hesitate to contact me. I’m here to help and look forward to working with you. Thank you, Kamil Ładnik
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Latest review:
Carpentry- 23 May 2025
Kamil created a third bedroom for us in unused space in our flat. This involved carpentry, electrics and plastering within the job. We are extremely happy with the finished result. He was friendly, reliable and above all else the finish was excellent. He completed the work efficiently and we would totally use him again as and when needed.
Marius dumitriu
No reviews yet
Extension Builder in Watford
Your builder is here
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Prab builders ltd
Rating: 5 out of 5
Extension Builder in Watford
Prab Builders is one of the leading and fast growing constructions companies in the UK who take projects and work in a atmosphere where one can get everything under one roof. We have a team of experience people and we understand what our clients want. And as result we give total satisfaction to our customers and convert ideas into reality to give our best We are in this field from the past 18 years .Our service is professional,caring,and high quality and Customers are our First Priority
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Latest review:
Extensions- 8 Dec 2021
Me and my wife are very satisfied with Prabbuilders work. What stands out with Prab builders is that they do every task as if they are doing it for their own house and with work they are meticulous and exceptional. What we started with and how our extension looks now is simply amazing and the way they explain about what will look good(Color/ the structure etc ) is commendable as we both were not sure what decision to make, but after completion we are overjoyed to see how excellent it turned out to be now. I would recommend them anytime based on their skill ,eye for detail, being punctual and the hard-work they invest into every task to make sure we are getting the final product the way we dreamt of.
Stone building services
New on MyBuilder
Extension Builder in Watford
Skilled in all forms of brick and block laying. From garden walls to new build houses. Also do all forms of groundwork, drainage. Alterations,steels etc. Patios,driveways, fencing and landscaping.
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Liviu
No reviews yet
Extension Builder in Watford
My name is Liviu. I am an honest and serious builder, I have 20 years of experience, I always like to do quality work and treat customers with respect. Thank you
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B&K Bathroom&Kitchen Refurbishment
No reviews yet
Extension Builder in Watford
Welcome To B&K Bathroom & Kitchen Refurbishment Established for many years, B&K Bathroom & Kitchen Refurbishment are a professional, polite and reliable Bathroom & Kitchen Specialist based in London and offering our services in wider area
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jet construction London Ltd
No reviews yet
Extension Builder in Watford
we do loft conversion and extension brick work landscape electric plumbing we have 10 years of experience
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Archeus Ltd
No reviews yet
Extension Builder in Watford
Over twenty five years experience in the construction industry. We take pride in providing a high quality service with a keen focus on customer care. We provide detailed quotations and staged payment plans to ensure complete visibility from inception to completion. We won't always be the cheapest but we always strive to be the best.
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Project-Wise
Rating: 5 out of 5
Extension Builder in Watford
We offer a friendly reliable service that is second to none and can put you in contact lots of past clients who will give us glowing references on request. I have spent 30 years in the building industry, a time served bricklayer who has gained a very good knowledge of all aspects involved and trade requirements. This is why I offer a service you can rely on and guarantee all our work, which is carried out to the highest standard.
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Latest review:
Extensions- 6 Jan 2016
Dave has done excellent work at a fair price. His communication is excellent and he kept me informed of everything going on at all times. I would happily hire Dave again.
BUILD ON TIME LTD
Rating: 4.9 out of 5
Extension Builder in Watford
BuildOnTime LTD is a family business and one of the fastest growing building companies in London.We have over 20 years of experience in all types of building and construction works.Our team is structured from highly qualified, friendly and ambitious workers.We are your builders in North London.
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Latest review:
Extensions- 30 Aug 2024
We recently used Build on Time Ltd to build a ground floor extension and remove chimney breasts from 4 rooms on a home renovation project. Paul and his team delivered within budget and ahead of time. This did not compromise their attention to detail or care taken with their work. All were extremely hard working and committed to getting as much out of each day as possible. They were reliable, trustworthy and a pleasure to be around. We would definitely recommend!
Dream Home Design and Build Limited
No reviews yet
Extension Builder in Watford
Although we are new to this site and yet to gain feedback, we are a team of experienced, knowledgeable and personable professionals ready to tackle your next project. We have an excellent reputation for completing projects on time and within budget. You are welcome to contact any of our satisfied client, just ask us for details. Feel free to contact us and we can discuss your project with a view to providing you with an exceptional service.
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4.3

Top rated Extension Builders

Our Extension Builders in Watford, are rated 4.3 out of 5 based on 11 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 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.