Extension Builders in Castelnau

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (20 reviews)

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Some of our top rated extension builders in Castelnau

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Blockwork and brickwork
No reviews yet
Extension Builder in Castelnau
Im bricklayer, im doing all brickworks and blockwoks,repointing and repairing jobs.we have many years experience.
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All aspects
Rating: 5 out of 5
Extension Builder in Castelnau
I have 22 years experience in the building trade I have worked for Wicks kitchens doing building work removing walls fitting steals. Extensions Plastering painting and decorating interior and exterior carpentry and tilling. Full bathroom refits and wet rooms.kitchens with wicks professional kitchen fitter The above is all work I would undertake. I’m hardworking clean and tidy with my work I always respect customers wishes.
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Latest review:
Painting & Decorating- 29 Aug 2025
Dean and Damian did an excellent Job, they were very quick and efficient and managed the jobs very well with the quirks of a very old house. Very pleased with the result and will definitely use them again.
Quality Build Ltd
No reviews yet
Extension Builder in Castelnau
I am a professional builder with 20 years experience, I specialise in loft conversions and extensions. I have a full team providing customers with a high quality finish every time. I have plenty of references and photos of previous projects if required.
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Ph Home Designs And Build Ltd
No reviews yet
Extension Builder in Castelnau
PH Home Designs and Build Ltd, we’re here to help make the next steps as smooth and exciting as possible. As specialists in extensions, renovations, and refurbishments, we pride ourselves on transforming approved plans into beautifully finished spaces that exceed expectations. From the initial stages of planning to the final brushstroke, we’ll guide you through every phase of the project. What we can offer you at this stage: Expert Planning Advice: To ensure the approved design aligns seamlessly with your vision and lifestyle. Free Consultation: A no-obligation opportunity to discuss your project in detail, offering tailored suggestions and solutions. Detailed Quotations: Transparent pricing with no hidden surprises, helping you plan with confidence. Quality Craftsmanship: Using premium materials and skilled professionals, we deliver results that stand the test of time. We’d love to work with you to bring your plans to life and ensure your home reflects your unique style and aspirations. Please don’t hesitate to get in touch to schedule your consultation or ask any questions. ! We look forward to the opportunity to partner with you on this exciting journey.
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SCME Builders Ltd
Rating: 5 out of 5
Extension Builder in Castelnau
SCME Builders Ltd are a family run business for over 35 years.We are happy to give a free no obligation estimate on all types of building work. A NHBC registered company we can provide testimonials and references on all works large or small
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Latest review:
Extensions- 29 Aug 2020
Marvellous. Will always recommend Gary owner SCME Builders Ltd.
Balls Builders Ltd
No reviews yet
Extension Builder in Castelnau
We are a family business from Bexleyheath with over 20years experience in the building trade.We regularly work for commercial companies as well as regularly undertaking domestic jobs. We can give in depth and valuable advice on all aspects of work from footing to ridge using our many years of experience. We are a multi trade company all of our employees are highly skilled in all aspects of work. Customer satisfaction is our top priority. We can provide customer references from previous jobs
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Britania Building Services
No reviews yet
Extension Builder in Castelnau
I’m a self employed builder with vast knowledge and experience for over forty years. I’m a multi trade person from construction, renovations, loft conversions and extensions etc. I’m an electrician, plumber, kitchen fitter, tiler and many other trades. My past experiences being, BT Engineer, Coca Cola Engineer, Sound Engineer, BBC sound engineer and few other companies I worked for.
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K vision developments ltd
No reviews yet
Extension Builder in Castelnau
With over five years of hands-on experience across multiple trades, I provide reliable, high-quality workmanship for homes and businesses. I’m a fully trained locksmith, builder, extension builder, and plumber, offering a wide range of services from small repairs to large-scale property improvements. I specialise in emergency callout maintenance, delivering fast, efficient solutions when you need them most—whether it’s a locked door, a burst pipe, or urgent structural repairs. My approach is built on professionalism, clear communication, and a commitment to getting the job done right the first time. No matter the size of the project, I take pride in offering dependable service, honest advice, and craftsmanship you can trust.
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Harley home improvements limited
Rating: 5 out of 5
Extension Builder in Castelnau
Harley Home Improvements Ltd. A property development company with over 20 years of experience. We cover all types of works: Extensions Loft conversions Garage conversions Kitchens Bathrooms Flooring Windows, Doors & Conservatories Patios & Decking We offer a friendly and professional service. We pride ourselves on our standard of work. References and viewing of our previous work is offered to all our future customers. Signed contracts are put in place on all ours jobs.
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Latest review:
Kitchen Fitting- 7 Apr 2021
Jack and Luke helped us to install our kitchen last week and they did a brilliant job. We are so happy with the end result and it has been a pleasure working with them. From the first contact, they have been reliable and polite. I would recommend working with them anytime!
JC Carpentry Services
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Extension Builder in Castelnau
Carpentry Services
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Lakha bricklayer
No reviews yet
Extension Builder in Castelnau
Hi,this is Lakha bricklayer am professionaly do brickwork.we carry any type of brickwork extension,porch,garden wall etc.we mostly try to give customer amazing jobs cos they money. Don’t hesitate call me if you need good and responsible bricklayers!
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H&G Renovations
No reviews yet
Extension Builder in Castelnau
"I'm a passionate kitchen and bathroom renovation specialist with over 25 years of experience transforming homes. My business is dedicated to bringing your vision to life, combining quality craftsmanship, innovative design, and a seamless customer experience. Let’s create your dream space together!"
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essex lofts and extensions
No reviews yet
Extension Builder in Castelnau
hello i am Aaron writing on behalf of the essex lofts and extensions we are a family run business that that can handle any of your domestic issues or solutions with a solid team of reliable tradesman in any feild. no job is to big or to small as we have electricians plumbers and our construction team ready for anything you desire from plumbing issues to fitting kitchen or patios and extensions don't hesitate to get in contact
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PS Brick Block &Home Improvement LTD
Rating: 4.7 out of 5
Extension Builder in Castelnau
All type of building works to high standards. - extensions - lofts - plumbing - electric - decorating - new build - patios - driveways
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Latest review:
Extensions- 4 Nov 2023
Overall me and my husband are very satisfied with the workmanship and with the final result of our my fake cladded garage door with the new aluminium framed window. The original garage was converted into a habitable room 7 years ago with only a rooflight to bring light into the room, which is now my husband's office and this new window will make a lot of difference therefore we are very happy with the finished work. The work was done very quickly, the builders turned up on time and they were very efficient and helpful, they took particular care when installing the composite slatted panels to the marine plywood. The main contractor Pawel Speiwak also came on site to inspect the works during construction. The quote was also very competetive, a good value for money. I would definetely use them again for any future work in my house and recommend them to other people.
callisto homes
No reviews yet
Extension Builder in Castelnau
Priding ourselves on our ability to not only meet, but to exceed project deadlines, whilst focusing a Partnering Approach and Consistent Quality we still aim to present solutions to improve our clients overall build experience . Undertaking New build, refurbishment and extension works, in house surveyors, Project managers and technical support your in safe hands with Callisto
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J.D.OWEN BRICKWORK
No reviews yet
Extension Builder in Castelnau
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4.2

Top rated Extension Builders

Our Extension Builders in Castelnau, are rated 4.2 out of 5 based on 20 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Castelnau?

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

Find extension builders in Castelnau with MyBuilder

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

Step 2: Compare different extension builders in Castelnau

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

Step 3: Hire Castelnau extension builders with confidence

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

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

What to ask a Castelnau extension builder before hiring?

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

An extension builder in Castelnau 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 Castelnau 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 Castelnau?

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 Castelnau 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 Castelnau 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 Castelnau

Can an extension builder in Castelnau help with planning permission?

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

Many Castelnau 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 Castelnau help with materials and finishes?

Yes, most extension builders in Castelnau 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.