Absolutely Plastered
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star9.76/10 | 65+ verified reviews

Water coming through your walls?

Penetrating damp is driven rain, leaking gutters, or failed pointing forcing water through your external walls. It shows up as damp patches, peeling paint, and black mould, often far from the actual entry point. We trace it, stop it, and repair the damage.

Penetrating damp repair
Why choose us

Walls sealed, damp eliminated

We fix the ingress point and repair the internal damage, all in one job.

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Root Cause Tracing

Water can travel along lintels, through cavities, and along wall ties before appearing internally. We trace the path back to the entry point, whether it’s failed pointing, cracked render, blocked cavity trays, or corroded wall ties.

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External Waterproofing

We repoint failed mortar joints, apply silicone-based water repellent to porous masonry, repair cracked render, and replace corroded wall ties. The external envelope is sealed against driven rain.

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Wall Tie Replacement

Corroded wall ties create direct bridges for water between the outer and inner leaf. We remove failed ties, install stainless steel remedial ties, and seal the drill holes to stop the damp path completely.

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Internal Repair

Once the source is sealed, we strip off damp-damaged plaster, apply salt-resistant basecoat if needed, replaster, and skim smooth. The room is left dry and ready for decorating.

Our process

How we fix penetrating damp

Outside in: we fix the source first, then repair the damage.

1

Trace the Source

We inspect externally and internally, using moisture meters and thermal imaging to pinpoint exactly where water is entering.

2

Seal Externally

Repointing, render repairs, gutter fixes, wall tie replacement, or or silicone treatment, whatever is needed to stop water getting in.

3

Strip & Dry

Damaged internal plaster is removed. Walls are allowed to dry out before replastering to prevent trapping moisture behind new plaster.

4

Replaster & Finish

Fresh plaster and a smooth skim coat are applied. The room is left clean, dry, and ready for painting.

Our work

Penetrating damp gallery

Penetrating damp gallery project 1
Penetrating damp gallery project 2
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Penetrating damp gallery project 4
Verified reviews

What our customers say

9.75/10 average rating across 65 verified reviews

10/10starstarstarstarstar20 February 2026

On pricing this job, the customer used an 'experienced tradesman' who used a steamer to remove wallpaper from plasterboard walls and they were removing the jointing tape and the skin from the plasterboard, thus leaving an unlevel surface. I suggested reboarding but they said they didn't have a lot of money to play with. While the 'tradesman' was removing the wallpaper the customer demanded via text that I go that very minute to see what a mess this tradesman was making. While we were working, her husband commented on how we were the best tradesmen they'd had, as we just got on with the job. I'd mistakingly missed out a price for a ceiling, so I skimmed that for no extra charge as the price had already been agreed. (No mention of this was in her review however). We always ask customers to check the work before we leave and both said they were 'over the moon' with the work and they paid via bank transfer a few hours after I'd left. It's clear the 'tradesman' hasn't prepped the newly plastered walls properly, as the paint has now blebbed. That's not a fault with the plastering, but with the lack of preparation on the decorator's behalf. It took 7 days for the customer to let me know she wasn't happy (and that was after the walls had been painted!).

Verified customerChecked & VettedChecked & Vetted
10/10starstarstarstarstar20 February 2026

I contacted Dean about the job and he was on hand to review damage, give a reasonable estimate within my budget and was on stand by once property dried out. Work started promptly and done with the estimated 3 days to a very high standard as always by Dean and his soon. Clean and tidy work too. .

Verified customerChecked & VettedChecked & Vetted
10/10starstarstarstarstar13 January 2026

Dean and his team started the job Tuesday and was done in 3 days. Very professional, workmanship to very high standards was told the ins and outs of process of work to be carried out and very clean. Amazing job for the price. Always on time, would highly recommend. Will definitely be using dean in the near future. .

Verified customerChecked & VettedChecked & Vetted
10/10starstarstarstarstar19 December 2025

Dean came out to give me a quote, he knew what needed doing and I was happy with what he quoted. He took down 2 ceilings, replaced them, skimmed and then put up some coving. I can’t fault his work at all, the ceilings look amazing, he left my home clean and tidy. I’d highly recommend. .

Verified customerChecked & VettedChecked & Vetted
10/10starstarstarstarstar15 December 2025

Dean at Absolutely Plastered is the only tradesmen I know that I can rely on! He always responds to requests! In this instance, we wanted some pretty poor brickwork covered at back of house & Dean advised other options that I was not aware...

Verified customerGoogleGoogle
10/10starstarstarstarstar14 April 2025

I had Absolutely Plastered out to inspect a damp problem in my home, he was knowledgeable and we agreed a price. Dean was prompt, came out when he said he would, installed a new damp course and plastered. Very reasonable and I’d highly recommend.

Verified customerGoogleGoogle

Stop water getting through your walls

Free, no-obligation quote. Fixed pricing. We respond within 24 hours.

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