★★★★★96.1% customer satisfaction · 1,250+ jobs since 2005 · up to 30-year guarantee
20+
Years protecting NE homes
1,250+
Damp jobs quoted since 2005
96.1%
Customer satisfaction
30yr
Guarantee on qualifying work
Waterproofing done right
Permanent waterproofing for basements & cellars
Below-ground walls are in constant contact with wet ground, so a basement only stays dry with the correct waterproofing system. We install both cementitious tanking (a waterproof barrier bonded to the structure) and cavity-drainage membrane systems (which manage water to a sump and pump), specifying the right approach for your basement and how you want to use it.
Two proven systems
The right system for your basement
Cementitious tanking
A waterproof slurry bonded directly to walls and floor, ideal where you want a robust barrier and a solid surface to plaster onto. Cost-effective for many cellars.
Bonded waterproof barrier
Great for storage & utility
Ready to plaster
Cavity-drainage membrane
A studded membrane lines the walls and floor, channelling any water to a sump and pump. The go-to for habitable rooms and higher water tables.
Manages water, doesn't fight it
Best for conversions
Sump & pump for peace of mind
Worried about damp? Let's fix it for good.
Book your free, no-obligation survey today. We'll find the real cause, give you a clear fixed price, and back the work with up to a 30-year guarantee.
A 96.1% satisfaction rating isn't an accident — it's what happens when local specialists do the job properly, the first time.
★★★★★
“Dean was professional from start to finish and finished ahead of schedule — all backed by a 30-year guarantee. Couldn't recommend them more.”
ST
Sarah T.Newcastle upon Tyne · Verified customer
★★★★★
“Had tide marks creeping up the hallway for years. The survey explained exactly what was wrong and the price was fair. Bone dry now.”
MR
Mark R.Gateshead · Verified customer
★★★★★
“Black mould in the bedroom was making us ill. Honest advice, no scare tactics, sorted in two days. Brilliant local team.”
JP
Joanne P.Sunderland · Verified customer
Damp questions, answered
Basement Tanking Newcastle FAQs
What is basement tanking?
Tanking is the process of waterproofing below-ground walls and floors so a basement or cellar stays permanently dry. It can mean a cementitious waterproof coating bonded to the structure, or a cavity-drainage membrane that channels water to a sump and pump, all designed to BS 8102.
How much does basement tanking cost?
It depends on the size of the basement, water conditions and the system used, so we provide a fixed price after a waterproofing survey. We'll explain the options and recommend the most cost-effective approach for your space.
Will tanking let me use the basement as a room?
Yes — once waterproofed, the space can be used for storage, utility or fully converted into living space. See our basement conversion service for the full fit-out.
Is the waterproofing guaranteed?
Yes. We use proven systems from established manufacturers and qualifying work is backed by a written guarantee.
This is a lead generation website. By submitting your details you are simply being passed to a reputable, independent tradesman.
Any work carried out is paid directly to them, not to North East Damp Proofing.
