Basement Conversions in Caerphilly

S&K Property Investments & Improvement provides professional basement conversion across Caerphilly, backed by a proper survey and a fixed written quote.

You get a straight assessment, a fair fixed price, and work carried out when we say it will be. A basement or cellar conversion creates space without touching your garden or roofline — ideal in areas where extending out or up is restricted. We convert and, where needed, lower and underpin cellars into dry, warm rooms with proper waterproofing.

Our basement conversions service in Caerphilly includes

Structural waterproofing (tanking + cavity membrane)
Sump, pump and drainage system
Underpinning and lowering where required
Insulation, damp control and ventilation
Electrics, lighting and heating
Full fit-out and building-control sign-off

Correct tanking and drainage is everything below ground, so we specify a full waterproofing system with a pump and membrane, then insulate, service and finish the space. Every job is designed with structural and building-control input.

Basement conversion across Caerphilly

We carry out basement conversion throughout Caerphilly, including Caerphilly, Bargoed, Blackwood, Risca, Ystrad Mynach, Rhymney, Bedwas, Nelson and the surrounding villages.

Caerphilly Bargoed Blackwood Risca Ystrad Mynach Rhymney Bedwas Nelson Newbridge Pontllanfraith

Basement Conversions in Caerphilly — FAQs

How do you stop a basement being damp?

We install a full waterproofing system — tanking or a cavity-drain membrane with a sump and pump — guaranteed to keep the space dry.

Is planning permission needed?

Converting an existing cellar usually is not, but lowering floors or adding light-wells can be. We check and apply if required.

How do you stop a basement being damp?

We install a full waterproofing system — tanking or a cavity-drain membrane with a sump and pump — guaranteed to keep the space dry.

Do you cover Caerphilly?

Yes — S&K Property Investments & Improvement covers Caerphilly and the surrounding towns and villages for basement conversion. Call 0800 088 6341 to confirm and book a free survey.

How quickly can you start work in Caerphilly?

It depends on the size of the job and our current schedule, but we will give you a realistic start date with your quote. Call 0800 088 6341 to check availability.

Call 0800 088 6341 or request a free quote online and we will get straight back to you.

Our basement conversions service in Caerphilly includes

Basement conversion across Caerphilly

Basement Conversions in Caerphilly — FAQs

Basement Conversions in Caerphilly?