Extension builders in Caerphilly

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (6 reviews)

Easily find verified Caerphilly Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Caerphilly.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Caerphilly

464 Results

Sort by:

T M BUILDERS ABERGAVENNY LTD
No reviews yet
Extension Builder in Caerphilly
My main trade is brickwork, Blockwork and stonework. We do a lot of patios and garden work. We also do extensions, renovations and also new builds and much more.
Get in touch
RTW Builders Ltd
New on MyBuilder
Extension Builder in Caerphilly
Welcome to RTW Builders Ltd, your trusted partner for all your construction needs. We proudly serve South/Mid/West Wales areas and more with a wide range of expert services. RTW was created by a group of highly skilled tradesmen who between them have been working in the building industry for decades. We firmly believe that we provide traditional skills along with modern echo friendly methods and technology to provide an efficient service. Our wealth of experience allows us to offer skills gained over many years. The health and safety of our team, clients and public is of the highest priority. No matter what stage you are at in your project we can offer a complete service. We can deal with planning applications and in some cases planning refusals. Building control applications. Insurance claims, fire, flood and general damage. We have a dedicated team to carry out the ever more popular project of garage and loft conversions. If you need additional sitting room, office or separate living accommodation garage and loft conversions are an economic way of increasing a living space and often can be completed within permitted development which does not require a planning application. We are here to help.
Get in touch
MR Roofing & Construction
No reviews yet
Extension Builder in Caerphilly
Hi I’m mark I’ve been in the roofing trade for over 25 years flat and pitched roofing, we then went into building after it leading to this with 4 experienced workers no job is to small or to big, our knowledge in the roofing industry is one of the best we listen to what are customers want and suggest best options for them to give them the best solution for there project
Get in touch
Daveydaw builders
No reviews yet
Extension Builder in Caerphilly
My name is davey daw I personal have 27 years experience in the construction bussiness with 15 years running my own company I am a fully qualified bricklayer In my experience keeping clients updated with the process and keeping regular times arriving on site and keeping site clean is a must
Get in touch
Gareth Tomlinson
No reviews yet
Extension Builder in Caerphilly
All carpentry work undertaken kitchen fitting pvc fitting decking plumbing and general building
Get in touch
DC Construct
No reviews yet
Extension Builder in Caerphilly
Undertake all aspects of building works, specialising in carpentry and joinery.
Get in touch
Lw joinery
Rating: 5 out of 5
Extension Builder in Caerphilly
I do joinery first second fix,kitchens,bathrooms,doors, windows,flooring,roofing,roof Windows,facia boards ,guttering decking,Fenceing
Get in touch
Latest review:
Bathroom Fitting- 13 Dec 2025
We are so pleased with the work Lee did repairing all the damage for a leak we had in our shower. Lee was really clear about what needed to be done and the work was completed to a really high standard. Lee was warm and friendly and always left the place immaculately clean and tidy. Would recommend him without hesitation.
PRW Build Co.
Rating: 5 out of 5
Extension Builder in Caerphilly
We are a small and local company based in the Brecon Beacons. Our work is always carried out to the highest standard, to suit clients needs and targets. Get in touch for a free quote
Get in touch
Latest review:
Carpentry- 26 Mar 2022
Good communication. Job done quickly and for fair price.. recommended
N Cottle Building & Property Maintenance Ltd
Rating: 5 out of 5
Extension Builder in Caerphilly
N cottle property maintenance ltd, type of work carried out are extensions, loft conversions , renovations, complete roof works ,roof repairs , kitchens , bathrooms , painting and decorating, plastering , fencing ,etc
Get in touch
Latest review:
Extensions- 5 Feb 2024
We found Nigel a very pleasant person to work with and he kept us up to date with progress and what work he would do the following day. Very pleased with the finished job and would thoroughly recommend him
Osborne bricklaying contractors ltd
No reviews yet
Extension Builder in Caerphilly
Bricklayer with 20 years experience from foundation to roof all aspects of building work No jobs to small or to big Bricklaying Stone work Landscaping Patios All aspects of masonry work
Get in touch
Parkside Professional Services
Rating: 5 out of 5
Extension Builder in Caerphilly
We carry out any building or construction works. We are SIKA approved contractors. We can complete concrete repairs. Crack resin injections. Waterproofing or Tanking works. We are Safecontractor, CHAS, Constructionline, Trading Standards Approved
Get in touch
Latest review:
Damp Proofing- 9 Sep 2024
Matthew took the the time to come and have a look at the damp issues we were having and give us plenty of advice on how we can resolve it ourselves without spending the thousands we had previously been quoted by other companies. Would definitely recommend and will be contacting him for any future jobs we may have!
SB Construction Services
No reviews yet
Extension Builder in Caerphilly
With a robust nine years actively immersed in the trade, my professional journey has been defined by a diverse array of projects and a steadfast commitment to quality craftsmanship. Throughout this period, I have successfully undertaken and completed a wide spectrum of transformations, ranging from comprehensive HMO developments and intricate garage conversions to extensive full-house refurbishments that breathe new life into existing properties. My expertise also extends to the meticulous fitting of high-end kitchens and bespoke bathrooms, ensuring both optimal functionality and exquisite finishes. This broad experience, gained across various locations and client specifications, has honed my problem-solving abilities and adaptability, establishing a proven track record of delivering exceptional results on every assignment.
Get in touch
RM carpentry and construction
No reviews yet
Extension Builder in Caerphilly
RM carpentry and construction cover a wide variety of jobs in the construction sector! From extensions to your small jobs
Get in touch
Watts Building Contractors Limited
Rating: 5 out of 5
Extension Builder in Caerphilly
I run a well established and VAT registered Carpentry & Building business with over 15 years experience. I have an experienced qualified team of tradesmen who are more then capable of carrying out all types of building work. All of my work is completed to the highest standard and I guarantee customer satisfaction.
Get in touch
Latest review:
Extensions- 29 Jul 2017
We are so pleased to have employed Tom Watts to build an extension (approx. 15 sq metres) off our existing kitchen and dining room. This was in order to create a large family room including a new kitchen installation. The site was not without its challenges as our house is built on a slope and required a very deep foundation to be laid. The build also required 3 RSJs (in order to remove existing walls) to create a modern space for open-plan living. Tom and his team were very easy to work with communicating any changes to the schedule and proving to be very reliable. Inevitably, as with any job such as this, there were instances where a good problem-solver was needed. Tom was able to offer creative solutions which kept the job progressing. After completing the building work T.W.Carpentry & Building also installed our new kitchen and finished the new room with new skirtings and door frames. We are very satisfied with the finished project and due to the quality of the work we are very happy to recommend this builder.
Trueline carpentry and building
New on MyBuilder
Extension Builder in Caerphilly
Hi, I’m Ciaran, a carpenter with over 20 years’ experience in the trade, covering both first and second fix carpentry. I take a lot of pride in my work and always aim to deliver a high standard of workmanship. I pride myself in being reliable, hardworking and always pay close attention to detail. I believe in doing a job properly rather than cutting corners. I take on all types of carpentry projects, from smaller jobs and repairs through to larger projects and bespoke work. No job is too big or too small, and I’m always happy to discuss your requirements and find the best solution. If you’re looking for a reliable, experienced carpenter who takes pride in what he does, I’d be happy to hear from you and discuss your project.
Get in touch
Greenways Grounds Maintenance
No reviews yet
Extension Builder in Caerphilly
Here at Greenways , our pictures and reviews speak for themselves! We carry out works from Qualified designing to implementation. All grounds works , building, landscaping , fencing , driveways and buildings. Please check out our website and get in touch today!
Get in touch

Top rated Extension Builders

Our Extension Builders in Caerphilly, are rated 5 out of 5 based on 6 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 Caerphilly?

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

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

What are the hourly rates of extension builders in Caerphilly?

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

Find extension builders in Caerphilly with MyBuilder

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

Step 2: Compare different extension builders in Caerphilly

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

Step 3: Hire Caerphilly extension builders with confidence

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

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

What to ask a Caerphilly extension builder before hiring?

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

An extension builder in Caerphilly 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 Caerphilly 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 Caerphilly?

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 Caerphilly 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 Caerphilly 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 Caerphilly

Can an extension builder in Caerphilly help with planning permission?

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

Many Caerphilly 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 Caerphilly help with materials and finishes?

Yes, most extension builders in Caerphilly 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.