Superb Customer Service
100+ Years' Experience
Attention To Detail
Local Wearside Business
Highly Trained Team
Superb Customer Service
100+ Years' Experience
Attention To Detail
Local Wearside Business
Highly Trained Team
Planning to convert or make use of a basement or cellar?
We provide expert basement tanking and waterproofing services throughout Sunderland, Durham, and across Wearside
Turn Damp, Unusable Spaces Into Dry, Valuable Rooms
If you’re planning to convert or make use of a basement or cellar, proper waterproofing is the most important first step. At Wearside Damp and Timber, we provide expert basement tanking and waterproofing services throughout Sunderland, Durham, and across Wearside, using industry-approved methods to protect your property from water ingress — now and long into the future.
Whether you’re dealing with a leaking cellar, rising ground moisture, or preparing for a full basement conversion, our experienced team is ready to help.
Basements and cellars are prone to water ingress because they sit below ground level, often in direct contact with saturated soil.
Without effective waterproofing, moisture can enter through walls, floors, and junctions — leading to damp patches, mould growth, damaged plaster, and even structural decay.
Our comprehensive waterproofing systems make sure your basement stays permanently dry, creating a safe, usable space for storage, living, or work.
Every basement is different, but our process is thorough, proven, and compliant with the highest industry standards:
Each stage is critical. Cutting corners here often leads to failed treatments and repeat work. At Wearside Damp and Timber, we never skip steps — and all work is backed by long-term guarantees.
The most effective system for your basement depends on your property’s layout, condition, and intended use. We install:
Type A – Tanking (Barrier System)
A waterproof slurry is applied directly to internal walls and floors to block moisture. Ideal for dry conversions or partially damp spaces.
Type B – Integral Waterproofing
Used primarily in new builds, where waterproofing is built into the concrete structure itself via additives.
Type C – Cavity Drain Membrane Systems
A modern, highly effective water management system that redirects water into a sump and pump. Ideal for active leaks or high water tables.
We’ll advise you on the best system for your property during your survey.
There’s no one-size-fits-all answer — costs depend on:
Every basement waterproofing and conversion job is different which is why it is important to get your property surveyed by a basement specialist first who will produce a detailed report for you and provide a no-obligation estimate.
We believe in fair, honest pricing—no hidden fees, no inflated quotes. Our pricing reflects the quality of materials, the expertise of our team, and the long-term results we deliver. It’s not just affordable—it’s worth it.
Don't let damp ruin your basement’s potential.
Planning to convert your basement into a home office, gym, guest room or storage area? Waterproofing is step one.
Without it, you risk damp issues undermining your investment. Our specialists help clients across Wearside convert dark, damp basements into dry, warm, usable spaces.
We’ve worked in:
Contact us now to arrange your basement survey in Sunderland, Durham or anywhere across Wearside.
Take the first step towards a damp-free, mould-free and rot-free property by booking a survey with our Specialist Damp & Timber Surveyors.
Don’t wait for the problem to get worse in your Wearside property. Whether you’re noticing the first signs of damp, mould or rot or if it has turned into a more serious issue, our experienced Property Care team is ready to help.
Simply book your survey by calling us or by contacting us via our online form.
Wearside Property Care Specialists Covering Sunderland and Durham.