Together we can transform an unused loft into a beautiful feature of your home.

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Welcome to Alliance Lofts

Alliance Lofts provide professional loft conversions in South Wales. Established for over 35 years, Alliance Lofts is one of Wales’ own pioneering loft conversion firms, priding itself on its high standard of craftsmanship and complete service from first plans to final plaster.

Alliance Lofts specialise in the South Wales area including loft conversions in Cardiff, Rhondda, Pontypridd, Llantrisant, Caerphilly, Cwmbran, Newport, Barry, Merthyr Tydfil, Aberdare, Maesteg, Bridgend, Porthcawl, Port Talbot and Swansea.

Make the most of your unused space

Create beautiful new living possibilities within existing homes ranging from extra bedrooms with en-suite bathrooms, playrooms or home offices.

Quality guaranteed

Every installation is backed by a 5 year guarantee of workmanship and materials used and as an exclusive installer of Velux roof windows the finished product is second to none.

What our customers say

"Thank you all for such a lovely job you did on our loft conversion. We would recommend your firm to anyone as we are thoroughly pleased with our new rooms."

Tyrone James, Neath

"Thank you Alliance. From the very beginning, Alliance talked us through every step of the way, with amazing attention to detail; from amending plans and even attending meetings with the planning department on our behalf! As for the build, the whole experience was painless and extremely well managed by Martin and his team of very skilled, and incredibly hardworking tradesmen. No detail was too small, working with great care, as though it was their own home. You won't get better. We are delighted with our new master bedroom and ensuite."

Isabelle Adams Cardiff

"What a fantastic job! A massive thank you to Martin and tradesmen. From start to finish it has been a painless and stress free experience. The work was finished to a high standard and the guys were great. Definitely recommend."

Mr & Mrs Locke, Cardiff
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