Extension Builders in Cwm

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (3 reviews)

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Some of our top rated extension builders in Cwm

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Nigel Mclelland Building & Groundworks
Rating: 5 out of 5
Extension Builder in Cwm
Hello my name is Nigel I am a time served bricklayer and have been in the building trade for over 30 years I carry out all building work from home improvements to extensions and all types of building and groundwork's including patios walling fencing landscaping drainage Free quotations on request.
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Latest review:
Bricklaying- 28 Dec 2016
Did as required, left the house clean and tidy after was was a messy job. Thanks Nigel
PnP Facilities
No reviews yet
Extension Builder in Cwm
My name is Paul and I’m the proprietor of PnP Facilities. I am a professional senior site manager and quantity surveyor with 30 years trade experience. PnP Facilities is a small company with a good reliable, friendly, honest and clean workforce. We are able to cover most trades and use regular sub contractors for any elements we can’t undertake, however we still manage the process to ensure every project is done to the highest standards. Our costs are realistic with no nasty surprises and we provide free professional quotations. New to My Building, but by no means new to building, all work guaranteed and references provided on request.
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RODRIGUES CREATIVES LTD
No reviews yet
Extension Builder in Cwm
Hi, I’m Rhyd, a reliable and experienced builder with a focus on high-quality workmanship and customer satisfaction. I specialise in home extensions and take pride in delivering projects on time and within budget. Whether you're planning a small upgrade or a full-scale build, I’ll guide you through the process with clear communication and honest advice. I’m fully insured, and all work is carried out to meet current building regs. Feel free to get in touch for a free quote or to discuss your ideas – I’m always happy to help.
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K & C Pearce Ltd
No reviews yet
Extension Builder in Cwm
K & C Pearce is a construction company specialising in refurbishment projects across South Wales. We undertake a wide range of works, including small extensions, development projects, void and empty property works, full refurbishments, kitchens and bathrooms, wet rooms, adaptations, and dilapidation works.
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Gareth Tomlinson
No reviews yet
Extension Builder in Cwm
All carpentry work undertaken kitchen fitting pvc fitting decking plumbing and general building
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Sagers Construction Ltd
Rating: 5 out of 5
Extension Builder in Cwm
At Sagers Construction we have over 25 years of experience in the construction industry. We offer all aspects of building from ground works and civil engineering, extensions and refurbishments to commercial and residential new builds. Working closely with our clients and design teams we always aim to exceed expectations. We have an in-house team of highly skilled and qualified trade persons and work only with approved subcontractors. Delivering an affordable quality finish is paramount.
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Latest review:
Extensions- 19 May 2021
Oli and his expert, friendly team have installed a turn-key annexe in 4 weeks, on time and in budget. I was particularly impressed with communication, thoughtfulness to our requirements and situation and even keeping relationships with neighbours at an even keel. A great balance of keeping me informed and involved with decision making but also using his initiative and judgement to progress the build without delay given we are a busy family with almost continuous zoom calls! I'd highly recommend this contractor and will use again for our future home development needs. 100%
S W Rendering ltd
No reviews yet
Extension Builder in Cwm
We are a building company that supply Bricklayers and Renderers to the local and national main contractors for small to large scale contracts. We also undertake residential & commercial smaller scale projects, extensions, alterations, etc. We meet all CDM Regulations revised in 2015 and are accredited with CHAS.
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Hc builders
No reviews yet
Extension Builder in Cwm
Hello my name is Harry, I am a self employed builder with experience in bricklaying, plastering, rendering, painting and decorating and landscaping I’ve been in my trade for 15 years and during this time I have worked on various sizes of site from peoples gardens to sites with up to 800 homes
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K. SYR construction
No reviews yet
Extension Builder in Cwm
Personal Statement I am a skilled painter and plasterer with over 10 years of hands-on experience delivering high-quality finishes for residential and commercial properties. I specialise in all types of plastering, including skimming, rendering, patch repairs, and textured finishes. My painting work covers everything from interior walls and ceilings to exterior surfaces, using both traditional brush and roller methods as well as modern spray painting techniques. I take pride in my attention to detail, clean workmanship, and reliable service. Whether it’s a full house renovation or a single-room refresh, I always aim to exceed client expectations with a smooth, professional finish that lasts. Customer satisfaction and a job done right the first time are at the core of my work ethic.
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Angelo Colarusso
No reviews yet
Extension Builder in Cwm
I am an extremly fussy and meticulous builder with over 40 years in the building trade having built houses satisfied the local authorities when Grant works needed competent and proficient builders with a wide and varied field of experience at present I am completing a garage conversion and extention which has more than met my customers needs. I wish to progress my company with your help this why I am applying to your your goodselves.
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JHJ Building Contractors
Rating: 5 out of 5
Extension Builder in Cwm
JHJ Building Contractors is a fully insured construction contractor with over 20 years of industry experience, delivering high quality building and construction services across South Wales. We undertake residential, commercial and public-sector projects, including new builds, extensions, refurbishment, brickwork, substructures, groundwork, repairs and maintenance. Working with private clients, housing providers, main contractors and civil engineering companies, we pride ourselves on quality workmanship, safe working practices, reliability and professional project delivery from start to finish. Check out our webpage for more info. •New builds •Extensions •Renovations •Building refurbishment •Conservatories •Substructure •Garage conversions •Maintenance and repair service
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Latest review:
Extensions- 20 Jun 2026
I can’t rate Justin and his team enough. They turned up when they said and completed the work within the time he said. His work is very clean and neat. And they went above and beyond to get our project back on track after other delays in the build. I will be using JHJ building on future projects. It was a pleasure to deal with such competent trades men and very approachable if we had any questions. Highly recommended
DLT Carpentry
No reviews yet
Extension Builder in Cwm
Carpentry building
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Signature carpentry limited
No reviews yet
Extension Builder in Cwm
With over 20 years in construction from commercial to residential experience We have a full team of qualified professionals tradesmen With a very high standard and professional attitude that we pride ourselves on Our main achievement is making the experience of your project as easy and stress free as possible and completed to a very high standard
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CS Construction
Rating: 5 out of 5
Extension Builder in Cwm
Been building for 14 Years. Do everything from new builds to extensions and renovations. Have a good team working together.
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Latest review:
Extensions- 22 Jan 2019
Craig and his team are amazing. Very quick and nothing is a problem. Their finish is spot on. Would seriously recommend Craig. Everything he says he will do is delivered, no false promises. His quote was very realistic and worth every penny.
Eyles Building and Plastering services
Rating: 5 out of 5
Extension Builder in Cwm
I am a self employed bricklayer and plasterer with 14 years experience, I have city and guilds nvq advanced level 3 qualifications and a cscs gold card holder and I am fully insured. I have also worked for a large building company in Bristol covering all aspects of building work and have all the skills as a multi trade and experienced builder, I work to a very high standard and attention to detail and cleanleness on work under taken. I take my job very seriously and aim to do the best job.
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Latest review:
Very pleased with our finished extension. Originally we were just getting luke to do the shell of the extension but after seeing his work and professionalism we got him to do the inside aswell. We were very happy from start to finish. They are unlike other builders that come and go as they please. Luke stuck to his time scale and stayed on the job from start to finish. Would highly recommend .
R W Langford Builders Ltd
Rating: 4.7 out of 5
Extension Builder in Cwm
R W Langford Builders are a family run business that offer a friendly and reliable service and believe customer relations and satisfaction is a top priority. We can complete any building job from start to finish making it a stress free experience for our clients. All work is fully guaranteed and completed to the highest standard.
Get in touch
Latest review:
Extensions- 25 Jan 2025
Overall the job was fine. But noted a couple of issues after completion ,(and payment) but despite several notifications to the contractor, they never returned to correct the issues, and stopped responding. Very disappointed with their professionalism

Top rated Extension Builders

Our Extension Builders in Cwm, are rated 5 out of 5 based on 3 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 Cwm?

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

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

What are the hourly rates of extension builders in Cwm?

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

Find extension builders in Cwm with MyBuilder

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

Step 2: Compare different extension builders in Cwm

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

Step 3: Hire Cwm extension builders with confidence

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

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

What to ask a Cwm extension builder before hiring?

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

An extension builder in Cwm 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 Cwm 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 Cwm?

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 Cwm 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 Cwm 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 Cwm

Can an extension builder in Cwm help with planning permission?

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

Many Cwm 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 Cwm help with materials and finishes?

Yes, most extension builders in Cwm 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.