Basement Conversions in Sheffield
Transform your damp cellar into a dry, usable living space
At Acorn Damp Proofing, we specialise in expert cellar waterproofing, basement tanking, and preparation for basement conversions across Sheffield, Rotherham, and South Yorkshire. Whether your cellar suffers from active water ingress, damp walls, and mould, or you are simply looking to create a dry, safe environment to expand your living space, our PCA-qualified technicians provide a complete, structural solution.
Our Basement Conversion & Waterproofing Services
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✅ Basement waterproofing and tanking systems
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✅ Cavity drain membrane installation
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✅ Sump pump installation and maintenance
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✅ Cellar floor waterproofing
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✅ Damp wall treatments and moisture control
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✅ Subfloor and cellar ventilation solutions
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✅ Specialist basement plastering and salt-retardant finishing
Why Choose Acorn Damp Proofing?
Unlike general builders, we approach basement conversions through the lens of building physics. We understand the specific causes of lateral moisture ingress and hydrostatic pressure. Our specialist damp and timber surveyors design bespoke waterproofing systems around the unique needs of your property to ensure water is managed correctly and permanently.
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PCA Qualified Technicians
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Honest, Surveyor-Led Diagnostics
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Local, Family-Run Sheffield Company
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10-Year Company Guarantee Available On Qualifying Waterproofing Systems
Frequently Asked Questions
Can you convert a damp cellar into a room?
Yes. However, the existing damp must be addressed first. We accurately assess the root cause of the moisture ingress and install a highly effective, guaranteed waterproofing system before any decorative finishing or conversion work takes place.
Do basement conversions need tanking?
In almost all cases, yes. Depending on the source and volume of water, underground spaces require either a physical tanking slurry system or a modern cavity drain membrane system to prevent groundwater from ruining the interior space.
How much does a basement conversion cost?
Costs vary greatly depending on the size of the cellar, the severity of the damp, the required waterproofing system, and the desired final finish. We provide honest, specialist surveys and transparent quotations.
Complete property damp proofed. So professional, nothing too much trouble. Kind and a pleasure to deal with. I would highly recommend them.
Excellent job very professional, explained exactly what would be done cleaned up and left the room in the same condition as it was before work was started. Would definitely recommend this company.
We would highly recommend Steve and the team at Acorn. Very professional and friendly service. Work was done to a great standard and they left the place tidy. Very competitive prices.
