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Extensions
House extensions in Cardiff and South Wales
Single and two-storey extensions built properly from the footings to the roof, by a family-run team you deal with directly.

Extensions
More space, built to last
Whether you want a bigger kitchen and dining area, an extra bedroom or a home office, an extension is one of the best ways to add space and value without moving.
We carry out the whole build, from setting out and foundations through to brickwork, roofing and finishing, so you have one team and one point of contact.
- Rear, side and wrap-around extensions
- Single-storey and two-storey builds
- Foundations, drainage, steelwork, brickwork and roofing
- Bifold and sliding doors, windows and rooflights
- Plastering and finishing, ready for the next stage

Our work
See a recent project
The process
How it works
Tell us about your project
Fill in our short enquiry form or give us a call. We reply within one working day.
Saturday morning survey
We visit your property on a Saturday morning, look at the job properly and talk through your ideas.
Written quote
You get a clear written quote for the whole job, so you know what is included before you decide.
We get building
Once you are booked in, the work is carried out by our own team, with you kept up to date throughout.
Questions
Common questions about extensions
How long does an extension take?
It depends on the size and design. We give you a realistic programme in your written quote, and keep you updated as the build progresses.
Do I need planning permission?
Many single-storey rear extensions can be built under permitted development rights, but it depends on your property, its location and the size of the extension. Building regulations approval is normally needed either way. We will talk through what applies to your project at the survey.
Can I stay in the house during the build?
Usually, yes. Most rear extensions are built outside the existing house, with a short period of disruption when the new opening is formed. We explain what to expect before work starts.
Do you guarantee the work?
Yes. We give a 10-year guarantee on structural and groundworks, and a shorter guarantee on finishes such as tiling, plastering and decorating.
Are you insured?
Yes. Aspire carries £5 million public liability insurance.
Reviews
What our customers say
“Connor and Lloyd have done a superb job for us in building our new front porch. They are reliable, punctual and work hard to provide the best possible service. They have incredible attention to detail and we’re thrilled with the finished product.”
“I honestly couldn’t recommend Aspire Construction highly enough. From start to finish, Connor and Lloyd were exceptional. Their attention to detail is second to none, and it was obvious they take real pride in their work. Nothing was overlooked, and the finished result has completely transformed our garden.”
“We are absolutely delighted with the work carried out by Aspire Construction. Conor and Lloyd did a fantastic job transforming our driveway, and the finished result has exceeded our expectations. They kept everything tidy throughout the project and were always happy to answer any questions we had.”
More from Aspire
Our other services
Ready to talk about your project?
Tell us what you have in mind. We reply within one working day and arrange a Saturday morning survey.
Family-run builders in Beddau, South Wales. Extensions, landscaping and renovations, done properly.
Aspire Construction & Groundworks Ltd · Trading as Aspire Construction · Company Number 16981442





