R.E.G Construction

For All Your Building & Landscape Needs in Cardiff

Celtic House Caxton Place, Cardiff, CF23 8HA Directions

   Open today 08:00 - 16:00

Why Choose Us?

We Are Specialists
Friendly Service
Highest Standards

Here at R.E.G Construction, we pride ourselves on our reputation

40 years of experience

Business overview


We are a family run, Cardiff based business, able to carry out all aspects of building work to the highest standard. With over 40 years industry experience, R.E.G has been proven to be a reliable, honest and expertly run construction firm. We have highly qualified specific trades for any type of work.

We pride ourselves on our diverse portfolio, including projects in the sport, leisure, retail, residential and commercial sectors. We believe that building strong client relationships is incredibly important and we work closely with our clients to ensure complete trust. Our team has a great wealth of experience and know that, despite the complexity of the construction process, there should be no mystery to the client.

Why Choose Us?

We work with architects and designers to produce beautiful, functional structures. Call us today and bring our project management skills and extensive construction experience to your next project.


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Complete refurbishment & extention
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Products & Services

Barn Conversions

Building Conversions

Building Refurbishments

Building Renovations

House Builders

House Extensions

Loft Conversions

Kitchen Fitting and Design

Painting and Decorating

Raft Foundations


Finishing Works

Builders In Cardiff

Local Builder Cardiff


Block Paving

Cavity Walls


Fascias and Soffits




Property Refurbishment



Excellent Loft Conversion Pontypridd

Mike Cousins and his team are wonderfull they did a very difficult loft conversion for us this summer (2023) and transformed our house. The individual tradesmen were polite, helpful and the quality of their workmanship was superb. We had thought of moving house but we are glad we stayed and used R.E.G. Construction for our project. Being a retired Clerk of works/Building Surveyor myself I was obviously a very demanding client.

Many thanks Mike
Kindest Regards from Lyndon & Julie
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Fantastic Company!

We are over the moon with the quality and workmanship of the team at REG Construction who did a fantastic job transforming our house into a modern liveable home.

The works involved remodelling the kitchen, utility, bathrooms, bedrooms and a full refurbishment of all the remaining rooms in the house, with patio and paving work outside.

REG Construction was recommended by a family friend and provided a competitive tender price for the works. Mike (the director of REG) was easy to deal with, proactively leading his team and providing advice and solutions to onsite problems throughout the project.

The team at REG were all highly skilled, courteous, and respectful of our house and we can’t praise them enough for their work.

If we need any further work carrying out, we will certainly be contacting REG Construction and would definitely recommend them to others.

Thanks once again from Mike, Beth, Emily, Ffion and Gelert!
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R.E.G are Reliable, Excellent and Great at what they do!

Mike and his team are incredibly reliable. They came exactly when they said they would and were very respectful.

Neal (who works for Mike) spent around 3 weeks doing up our bathroom. As a young woman I have been patronised in the past and told what I should do when having work done on the house by other companies, but Neal made sure he did what I wanted at all times and made it an easy process for me. He was also very tidy and cleaned up after every work day and took pride in his work.

Our toilet was faulty and leaking soon after being installed and Mike who owns R.E.G was easy to get hold of and sent his plumbers around immediately to sort it out.

I have long list of other things that need doing in the house I will definitely use R.E.G Construction again!
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Highly recommended!

Excellent service from REG and his ‘boys’ from day one. He estimated the renovation would be 5/6 weeks and that is what it was. The price he quoted was stuck to too. They created a downstairs cloakroom, put a lantern light in my lounge, took a chimney out of my kitchen, demolished the old units and fitted the new ones. We are really pleased with the finished job. Everyone of the trades involved worked seamlessly and to a high standard. Extras I asked for on the job were done without question and every day they cleaned up after themselves, leaving their work space spotless at the end of each night and they started each day promptly. Highly recommended!
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Complete renovation of 6 bedroom detached in Cyncoed, Cardiff

Mike and his team are by a distance the best building company we have used over my 30 year career renovating houses.
Mike has extensive experience of all types of building and his views and suggestions were invaluable in achieving our goals in our latest project as he has a good sense of design. This helped in avoiding several potential mistakes in the overall look of the house.
His team are all genuinely skilled, pleasant, considerate and tidy guys with years of experience and their views were very useful too. Be good to them and they will return the favour.
Mike also has a range of contacts several of which we employed to do specialist work such as our glass panelled staircase.
REG construction owned and run by Mike are an exceptional outfit and his charges are very fair for the outstanding quality of the work done!
Should we go on to another renovation or need any more work doing in the future REG will be our choice on builder.
Bert Brinkley
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