Basement Conversion Specialists in Sheffield

Converting your basement into a livable space is one of the best ways to add additional living space and value to your property.

competitive prices

insurance backed guarantees

All work complies with British Standard BS8102


As proud members of the Basement & Waterproofing Association (BWA) we only carry out basement and cellar conversion work that conforms to the industry recognized standards set out in BS8102:2009 Code of Practice for Protection of Below Ground Structures against Water from the Ground.

We are passionate about carrying out our works meticulously, and recognize and understand the necessity of attention to detail when carrying out basement construction work. The devil is certainly in the detail!


Basement conversion is a complex, technical task and mistakes can be very costly to put right.

Our FREE GUIDE will equip you with the right questions to ask your builder to make sure they can deliver peace of mind and a quality service.

Request your free basement conversion quote

Our customers say...

After careful consideration we appointed LABS to convert our basement. We were not disappointed! At every step of the way we were very happy with the quality of the work and the good communication and project management. We would gladly recommend LABS to anyone considering a basement conversion.

Mr Smith – Grenoside, Sheffield

LABS did such an amazing job of our basement conversion. We were really impressed with the quality of finish and the team’s professionalism throughout.

Mrs Green – Ecclesall, Sheffield

Restrictions on building extensions and a rise in costs have meant that more and more people are converting their basements. Better damp proofing techniques and drainage systems have also enabled the growth of basement conversions.

Please be careful when choosing a company to carry out your work. Structural waterproofing is a specialist area of building work and requires an in-depth knowledge and appreciation of the methods used to ensure you don’t waste your time and hard-earned money.

As accredited damp proofing specialists, we have all the required skills and experience to ensure that your project goes to plan and meets all required building regulations. In addition, all of our basement conversion projects are overseen by a CSSW accredited surveyor (Certificated Surveyor in Structural Waterproofing).

Request your free basement conversion quote