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Leading the Industry in Basement Conversion London

Turnkey Contractors Ltd is a frontrunner in providing top-of-the-line Basement Conversion London services. With years of expertise, we have become the most sought-after Contractors London for all your basement conversion needs.

As a well-established Design and Build London firm, our Basement Conversion London projects stand as a testament to our mastery over design, planning, and execution. Whether it's an entertainment hub or an additional living space, we transform basements into areas that are both functional and sumptuous.

When it comes to Basement Conversion London, we hold a high standard for quality. Every project we undertake receives the same level of scrutiny and meticulousness, no matter how big or small. We are the Builders in London who put your needs first, crafting spaces that reflect your lifestyle and tastes.

Basement Extensions London are an excellent way to add value to your property. Our comprehensive services ensure that your basement is not just converted but extended to its full potential, maximizing utility and aesthetic appeal.


We are proud to be Main Contractors in London with a dedicated team of High End Residential Contractors London.

This enables us to offer custom-made solutions for Basement Conversion London projects. Your basement will not only be structurally sound but also splendidly designed, down to the last detail.

Our commitment to excellence sets us apart as the top Basement Conversion London experts. From initial consultation to the final walk-through, we maintain open channels of communication, keeping you informed every step of the way.

"With the level of quality provided every time and the professionalism of the workers, I would happily recommend Turnkey Building Contractors to anyone looking to design or renovate any home or property."

Mary Anne

Basement 1.jpg


Suite 105, Grangewood House
IG10 3TZ


020 8149 0010

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