Garage Conversion Companies in Treharris

Name: Garage Conversion Specialist
Brand: MyBuilder
SKU: garage-conversion-specialist
Rating: 5 (19 reviews)

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Some of our top rated garage conversion specialists in Treharris

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CP Plastering Services
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
I have been in the plastering trade for 10 years+, customer satisfaction is a top priority. My work is carried out to a very high standard. I pride myself on being extremely clean and tidy. Reasonable prices guaranteed.
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Latest review:
Conversions - General- 19 May 2025
Chris has just completed a great job for us, knocking out a load baring wall to combine two rooms and installing an RSJ, with a complete replaster of walls and ceiling to a high standard. Despite coming across a few problems Chris still worked hard to get the job done in record time and to a high standard. I would absolutely recommend him and will be using him in the future!
Renovations wales
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
Hi my name is Ryan. I am a fully qualified plasterer and I have two RHS awards for landscaping. I have 18 years experience of a vast amount of trades from renovating houses to renovating gardens. Renovations Wales is a family run business that prides itself on its reliability and completing jobs to the highest standard with attention to detail. We like to have very competitive pricing while trying our best to beat any like for like quote.
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Latest review:
Fencing- 20 Jan 2023
Ryan and Gary were brilliant. Turned up promptly on each day and carried out the work quickly and to our satisfaction. We will probably have some more jobs coming up and I would definitely look to Ryan and Renovation Wales again. Thanks both!!!
LP BUILDERS
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
I have over 30yrs experience in the building industry and carry out all aspects of work.
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Latest review:
Bricklaying- 22 Nov 2019
Great, Darren is very friendly and offered some great advice in how I can achieve what I’m liking for. The work was completed quickly with no interruption. 👍🏼👍🏼👍🏼
redz developments
Rating: 4.9 out of 5
Garage Conversion Specialist in Treharris
daily tasks include, maintaining, improving and fixing electrical repairs, installations of kitchens and bathrooms including all aspects from plumbing to fixtures. I also undertake renovations to the inside and outside of the property, these include but are not limited to; fencing, decking, landscaping, second fix carpentry, structural work and decorating.
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Latest review:
Conversions - General- 18 Mar 2025
Dan and Mike together transformed my garage into a beautiful bedroom. The way they did it was commendable with keeping the standards in mind. I would definitely have no hesitation in recommending them.
Matthew’s Building Construction
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
Matthew's Building Services has been established since 2005, and has a vast portfolio of very happy customers. Our working area covers all over South Wales and further. We are very proud of our work, as you can see from our feedback, we are committed to our work & the customer. I will be happy to forward you a list of names and contact details for recently completed works.
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Latest review:
Conversions - General- 23 May 2021
Matthew and his team were very professional from the onset, he removed external wall and fitted steel beams to support site was left clean and would definitely use him again , thank you Matthew
Mike walentin plumbing
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
Hello I am mike the owner of MWP. I am a passionate plumber serving Cardiff and surrounding areas. Specialising in bathroom renovations , repair and central heating. Friendly - professional - affordable. Please check my business out on google and Facebook to see more previous work and customer review. My sister business is bespoke renovations and constructions ltd who carry out all conversion and extension work.
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Latest review:
Bathroom Fitting- 19 Aug 2022
Mike did a great job, kept up to date every step of the way he provided suggestions and solutions to some of the bits we hadn't thought of. Reasonable quote which included everything and he worked hard to get it finished. Bathroom looks fab now 100% better than what was originally there.
BGL home improvements and building services
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
I have been sole trading since 1994 over this time I have undertaken various building projects spanning from,building extensions,attic and garage conversions.Insulation,Ewi Iwi attic.All aspects of carpentry +joinery.kitchen fitting,bathroom fitting,conservation works. Roof work from repair to replacement,plastering,plumbing.I have also project managed projects from house building to referb works, domestic and commercial.
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Latest review:
Conversions - General- 5 Jul 2023
David and the whole team were fabulous throughout the project. Very reliable, great communication and very fair quotes. Would have David back in a heart beat to complete future works for us. Thank you.
Home fix builders ltd
Rating: 4.8 out of 5
Garage Conversion Specialist in Treharris
I've been in the building industry for 40 years .i undertake domestic and commercial projects ,small and large contracts from extensions to new builds Olso refurbishments.and complete bathroom and kitchen installation .I have a good customer portfolio . And now looking for new to expand my customer base.
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Latest review:
Conversions - General- 6 May 2018
Hardworking. Reliable. Tidy. Meticulous. Will definitely be considering for future jobs.
Precision Carpentry and Building
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
All aspects of Carpentry and Building work undertaken. -Internal to external Carpentry Specialists. -Loft Conversions -Flat Roofs, EPDM -Fascia and soffit -Dry lining -Media Walls -Glass Balustrades -Stair case renewals and many more..
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Latest review:
Loft Conversion- 12 Jul 2026
We couldn't be happier with our new attic conversion. Drew and his team were absolutely fantastic from start to finish. The results are incredible and have completely transformed the space – the quality of workmanship is outstanding. Throughout the whole project, Drew kept us informed every step of the way, explaining what was happening and making sure we were happy with everything. The team were always punctual, professional, friendly and respectful of our home, leaving everything as clean and tidy as possible at the end of each day. Nothing was ever too much trouble, and any questions we had were answered quickly. It's clear that Drew takes great pride in his work, and the attention to detail really shows in the finished result. I would highly recommend Drew and his team to anyone considering an attic conversion or any building work. Thank you all for doing such an amazing job – we're absolutely delighted with our new space!
Bumford electrical limited
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
BUMFORD ELECTRICAL LIMITED We cover all aspects of electrical work Domestic, Industrial, Commercial, Testing and inspection, Pat testing, Fault finding Fully insured NAPIT approved electrician High end bathrooms /kitchens
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Latest review:
Electrical- 5 Sep 2021
Friendly and experienced they got the job done, would recommend Johnathan for anyone needing an electrician.
Scott Taylor
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
Hi, I am a self-employed carpenter with 10+ years of experience in my trade. i offer a friendly, polite and reliable service with a good attention to detail. My aim is to meet the needs of the job, leaving you the customer with an excellent standard of finish. Thank you.
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Latest review:
Joinery & Cabinet Making- 16 Jan 2026
Fantastic job. Very courteous, prompt and very professional. Would definitely use Scott again
Luke Briggs Building & Roofing Contractor
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
I am a building and roofing contractor based in Blackwood South Wales. We undertake all aspects of building work and strive on delivering a quality job for all our customers. We provide a complete hassle free friendly service and can deal with all your building needs. We can provide you with a competitive quotation on : GROUNDWORKS BRICKWORK & BLOCKWORK PLASTERING & RENDERING CARPENTRY ROOFING WORK NEW BUILDS COMPLETE RENOVATIONS PROJECT MANAGEMENT
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Latest review:
Roofing (Pitched)- 1 Mar 2021
Luke is very knowledgeable, he advised me on a better and as it turned out cheaper option to reslove the problem we had with our chimney. The job was completed in a satisfactory, timely and professional manor.
JJ Brick and stonework specialists
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
JJ Brickwork & Stonework Specialists Ltd Transforming ideas into exceptional spaces, JJ Brickwork & Stonework Specialists Ltd brings over 20 years of hands-on expertise to every project. As a trusted family-run business, we specialise in high-quality building and groundwork services, delivering outstanding results that stand the test of time. Customer satisfaction is at the heart of everything we do. We take pride in completing every project efficiently, professionally, and with attention to detail, which is reflected in our outstanding 5-star reviews from happy customers. We offer free, no-obligation quotations, proudly support local charities, and provide OAP discounts. Quality. Reliability. Experience. Built on Trust.
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Latest review:
Conversions - General- 28 Oct 2024
A complete professional. JJ brickworks were punctual and we felt we were able to approach them to the lead up to the work for advice. The work completed is at an excellent standard and the place was tidied up after. Great value for money. I would definitely use them again and would highly recommend to all.
Alex lee carpenter builder
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
Alex lee Carpenter and builder with over 20 years experience in Carpentry Thanks for looking at my profile hope to work for you In the future And I can beat any written quotation Thanks (((( ALEX LEE FBk ))))
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Latest review:
Windows & Doors (Wooden)- 8 Jul 2026
Extremely proficient and did the job very quickly. I can now use the back gate. Would not hesitate to recommend and would contact him again for further work when needed. Thank you Alex.
Activate construction ltd
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
Activate Construction Ltd are a family run business with an exceptional track record building quality additions to homes across south wales. Extension specialists although we can and have completed a variety of projects from structral alterations to large scale renovations. As proud fully vetted members of the federation of master builders, we are fully insured, competent and qualified regularly liaising with clients to ensure we exceed their expectations. We hold many accreditations building from concept to completion a one stop shop for any project.
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Latest review:
Conversions - General- 7 Feb 2024
Phillip gave me an accurate and fair quote at the start and having agreed the job he provided a detailed schedule of work and payments. He organised Building Control too, and sorted all the admin side for me. He's NVQ level 6 in building so he has detailed knowledge of all rules and regs. The work itself was carried out professionally and organised as we agreed, without unnecessary hold-ups and my job, a rear extension, was wrapped up in about 4 months over the autumn/winter. I'm pleased with the high standard of the work and the boys on the job were easy to get on with. Phillip can be trusted to do the work properly as he is concerned with continuity of jobs in the area and wishes to retain his good reputation. If you take him on for the job, no worries!
2d construction
Rating: 5 out of 5
Garage Conversion Specialist in Treharris
We are a professional building contractor based in South wales. We consist of a partnership and cover a range of trades between us. We are also in the liquid screed industry and offer underfloor heating and screed packages. We have 40 years combined experience and are known for the quality of our work and our friendly service. We also supply, pump and lay concrete! All in house. Get in touch for a free no obligation quotation today.
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Latest review:
Plastering- 8 Jul 2024
All done very professionally. All measurements and levels set on day 1 (2-3hrs) then all screeding completed on following day. Very flat, level finish , thanks

Top rated Garage Conversion Specialists

Our Garage Conversion Specialists in Treharris, are rated 5 out of 5 based on 19 reviews from customers like you.

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What types of services are offered by garage conversion companies in Treharris?

A garage conversion specialist can walk you through every stage of transforming this often-overlooked space in the home.

Their services usually include:

Design consultation: Helping plan the layout and use of the converted space.
Onsite surveys and assessments: Checking the structure and suitability before work begins.
Managing planning permissions and building regulations: Ensuring your project complies with local rules.
Installing foundations and floor slabs: Strengthening or updating the base where required.
Infill of garage doors: Replacing garage doors with walls, windows, or entrances to match the new layout.
Insulating garage walls and roofs: Making the space energy-efficient and comfortable year-round.
Adding new windows and doors: Creating natural light and access points.
Electrical and heating installations: Adding power, lighting, radiators, or underfloor heating.:
Interior finishing work: Plastering, flooring, and basic joinery to prepare the space for final decoration.

Using MyBuilder’s matchmaking function, you can connect with a Treharris garage conversion company near you in no time and get the help you need with your project.

Costs of garage conversions in Treharris

Typically, a garage conversions in Treharris can cost between £13,000 – £20,000, depending on the size of the space, the scope of work, and the quality of the finish.

Many factors make up this final figure, including:

Design consultation: £300 to £800
Onsite survey and assessments: £150 to £500
Planning permissions & regulations: £200 to £1,000+ (varies)
Foundations & floor slab work: £1,000 to £3,000
Infill of garage doors: £1,200 to £2,500
Insulation (walls & roof): £1,000 to £2,500
New windows and doors: £800 to £3,000+
Heating and electrical installation: £1,500 to £4,000+
Interior finishing: £1,500 to £5,000+
Hourly labour rate: £20 to £35 per hour
Daily labour rate: £160 to £280 per day

Read more about the average garage conversion cost to help you start budgeting for your project in Treharris.

If you’re seriously considering a garage conversion, Treharris specialists will be the best source of accurate pricing information. Find your options on MyBuilder, then ask for a quote from a conversion professional with knowledge of your project specifics. Post your garage conversion job today and choose from verified garage conversion companies in Treharris.

Find a garage conversions specialists in Treharris with MyBuilder

A garage conversion can be a fantastic way to increase your living space without moving but finding the right professional makes all the difference. Platforms like MyBuilder make it easy to find and compare garage conversion companies and specialists in Treharris.

Follow a few simple steps to find the tradesperson for your job:

Step 1: Post your garage conversion job on MyBuilder for free

Describe your garage conversion project in detail, including your goals, the size of your garage, and any specific features you want to include; you can also include photographs to further demonstrate your project needs. Local Treharris garage conversion companies can then review your posting and express interest.

Step 2: Compare Treharris garage conversion companies and specialists

Once you’ve begun to receive responses, you can browse through profiles, review galleries of previous projects, and read feedback from other homeowners on our platform.

Step 3: Make your choice and start your project

Once you’ve reviewed your options, you can reach out directly to discuss your project in more depth and compare quotes to ensure the pricing is clear and competitive. You stay in control throughout the process, choosing the garage conversion company who best fits your needs, budget, and timeline.

All professionals on MyBuilder are verified at sign-up, including ID checks and skills assessments. What’s more, Treharris garage conversion companies on MyBuilder have to be confirmed as a registered business before joining the platform.

FAQs: Frequently asked questions when looking for garage conversion companies in Treharris

Do I need planning permission for a garage conversion in Treharris?

Most garage conversions fall under permitted development, but planning permission may be required for listed buildings, conservation areas, or major structural changes. You should discuss this with your chosen Treharris conversion company.

What building regulations apply to garage conversions in Treharris?

All garage conversions must meet building regulations covering areas like fire safety, insulation, ventilation, and structural stability to ensure the new space is safe and habitable.

Do garage conversion specialists in Treharris need specific qualifications or certifications?

While formal qualifications aren’t always required, specialists should have relevant experience and may hold certifications for regulated work like electrical or structural tasks.

Are garage conversion companies in Treharris required to have insurance?

Yes, reputable garage conversion companies in Treharris should hold public liability insurance to cover accidents or damage during the project, and many also carry additional cover for their work.

How long does a typical garage conversion take from start to finish?

A standard single garage conversion usually takes between 2 and 6 weeks, depending on the size of the space and the complexity of the work.

Can I live in my home while a garage conversion is carried out?

Yes, most homeowners can stay in their property during the conversion, though there may be some disruption from noise, dust, and limited access to certain areas.