★★★★★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
Rising Damp explained
What is rising damp?
Rising damp is ground moisture travelling up through a wall by capillary action where the original damp-proof course (DPC) has failed or is missing. You'll usually see it as a tide mark up to around a metre high, salt deposits and bubbling plaster. The lasting fix is a new chemical DPC plus replacement of the contaminated plaster — and that's exactly what our local specialists install, with a written guarantee of up to 30 years.
Know the signs
Signs of rising damp to look for
Spotting it early keeps the repair small. These are the tell-tale signs in North East homes:
A horizontal ‘tide mark’ up to ~1m up the wall
White, fluffy salt deposits (efflorescence) on plaster
Peeling paint, bubbling or blown plaster near skirtings
Damp, cold patches that feel worse in winter
Rotting or lifting skirting boards and a musty smell
Common causes
Why rising damp happens
A failed, bridged or completely missing damp-proof course
Raised external ground or path levels above the DPC line
Debris-filled cavities bridging the damp barrier
Solid floors or render carrying moisture across the DPC
Older Tyneside terraces and stone-built properties without a modern DPC
Our proven process
How we treat rising damp
Diagnosis first, then a lasting, guaranteed fix — never a sticking plaster.
Free damp survey
We inspect, take moisture readings and identify whether it's genuinely rising damp or another cause — many ‘rising damp’ jobs turn out to be condensation or a leak, and we'll tell you honestly.
Install a new damp-proof course
We inject a silicone DPC cream into the mortar bed to form a continuous water-repellent barrier that stops moisture rising.
Remove & renew contaminated plaster
Salt-laden plaster is hacked off and replaced with a breathable, salt-resistant render system so the wall can dry and stay dry.
Re-skim, guarantee & aftercare
We finish ready for redecoration and issue your written guarantee of up to 30 years for total peace of mind.
Get rid of rising damp for good
Book your free, no-obligation survey. We'll confirm the 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
Your questions, answered
Rising Damp FAQs
How do I know if it's really rising damp?
True rising damp is less common than people think and only affects ground-floor walls, showing a tide mark up to about a metre high with salt staining. Misty windows, high-level mould or patches on upper floors usually point to condensation or penetrating damp. Our free survey uses moisture readings to confirm the real cause before you spend a penny.
How much does rising damp treatment cost?
Every property is different, so we give a fixed price after the survey rather than a vague guess. Costs depend on the length of wall, plaster replacement and access. Your survey fee is deducted from the job if you go ahead, and you'll get a clear written quote with no hidden extras.
How long does the treatment take?
Most domestic rising damp jobs are completed within 1–3 days depending on the number of walls and the amount of replastering. We can usually start within a couple of days of you accepting the quote.
Is the work guaranteed?
Yes. Qualifying rising damp treatment is backed by a written guarantee of up to 30 years from a fully checked and vetted specialist, so you're protected for the long term.
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.
