Builders in Cardiff & South Wales
Builders in Cardiff, built properly from the ground up.
Extensions, loft conversions, renovations, kitchens, bathrooms, roofing and general building across Cardiff, Penarth, Barry, Bridgend, Newport and the Vale of Glamorgan – from big projects to the jobs other builders won’t take on.
5.0 on Google · 5 reviewsWhat we do
One builder for the whole job.
From big projects to the jobs other builders won’t take on – for homeowners, landlords, and small works for councils and the public sector.

Extensions
Rear, side and kitchen extensions that give your home the extra space you need.
More about extensions
Loft conversions
Turn unused loft space into an extra bedroom, office or playroom.
More about loft conversions
Renovations
Whole-house and room renovations: kitchens, plastering, painting and making older homes feel new again.
More about renovations
Kitchens & bathrooms
Strip-out, plastering, tiling and fitting for new kitchens and bathrooms.
More about kitchens & bathrooms
Roofing & repairs
Repairs, re-roofs, flat roofs, chimneys, fascias, soffits and guttering.
More about roofing & repairs
Groundworks
Footings, drainage, patios, paths, driveways and site preparation.
More about groundworks
General building
Repairs, brick and stonework, repointing, fencing and the smaller jobs - large or small, done neatly.
More about general buildingPublic sector
Small works and maintenance for councils, schools and housing providers.
More about public sectorGoogle reviews
What our customers say.
Five star rating for Solid Builders for the amazing work done on our house: great communication, on time, good value, very helpful and professional. We will definitely use Viktoras again.
Solid Builders are always straight forward to deal with and the work is of the highest standard. Victor is always realistic about price and how long a job will take- and delivers what he promises. We've used them for a wide variety of jobs including interior plastering and painting, kitchen fitting and exterior fence building. We were very happy with the results in each case and the site was always left clean and tidy so the work caused as little disruption as possible.
I wanted a patch up repair and partial pointing job on a stone wall at the end of the garden. Sort of job which could get out of control and cost a fortune. I felt he understood what I wanted and made good the wall to a sensible level. Worked quickly and did what I hoped he would at a price I was happy with... Can't ask for more really!
Although I had only a little piece of job to fix broken door handles and a broken IKEA sofa leg, Victor was quick to respond. He did a very neat and professional job. I have no reservation in recommending him.
Excellent builders we have been using for all jobs, large or small, for over five years. High standards of work, also tidy, punctual, efficient, honest and professional. Highly recommend!
How we work
Simple, clear, no surprises.
From your first message to the final walk-round.
Start with step oneGuaranteed work
Written workmanship guarantee on every job: the guarantee for your job is set out clearly in your quote, matched to the work we do.
Tell us about the job
Use the form below or give us a call. Photos help if you have them.
We talk it through
We get back to you to understand what you need and, where needed, arrange a visit.
Get a clear quote
A written, itemised quote you can view, accept and sign online. No obligation – you decide if and when to go ahead.
We build
We agree a start date and keep you updated while the work is done.
Handover
We walk through the finished job with you and sort any snags.
Existing customers
Already have a quote from us?
Open it with your quote number, check every line, then accept and sign online.
FAQ
Questions we get asked.
Are your quotes free?
Yes. Quotes are free and there is no obligation – you decide if and when to go ahead.
Which areas do you cover?
Cardiff, Penarth, Barry, Bridgend, Newport and the Vale of Glamorgan. If you are nearby but not sure, send us your postcode and we will let you know.
Do you take on small jobs?
Yes. We take on big projects and the smaller jobs other builders won't – repairs, repointing, fencing and more.
Can I send photos of the job?
Yes – you can add up to six photos to the quote form. Photos taken on your phone are perfect and help us understand the job before we visit.
How do I accept a quote?
Every quote we send can be viewed online. You can check each line, then accept and sign it on your phone or computer at hub.solidbuilders.co.uk/my-quote.
Do I need planning permission?
It depends on the project and your home. Some extensions and loft conversions are permitted development, but the rules in Wales differ from England and are stricter in conservation areas and for listed buildings. Building Regulations approval is needed for most structural work. We will talk you through it.
Free, no-obligation quote
Tell us about your job.
A few details and a couple of photos are all we need to get started. We’ll get back to you to talk it through. Prefer to talk? Call 07450 515159.
- 07450 515159
- info@solidbuilders.co.uk
- Plassey St, Cardiff CF64 1AN · Find us on Google
- Mon–Fri 8am–5pm · Sat & Sun closed
