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Interior wall with rising damp and blown plaster above the skirting
Knowl Hill, Berkshire

Damp Proofing in Knowl Hill

Stop paying to redecorate damp walls in Knowl Hill: we find the source, deal with it and replaster where salts have spoiled the surface.

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Knowl Hill, Berkshire

Damp From Condensation

Our team investigates damp for homeowners in Knowl Hill, checking the affected rooms and the outside of the same walls before saying what is behind it. We take moisture readings across the affected walls, look at ground levels, gutters and pointing outside, and show you what the readings tell us.

Homeowners in Knowl Hill, Marlow, High Wycombe and Beaconsfield and the other towns we serve can book a damp inspection. Send photos of the affected wall and we will be in touch the same day to arrange it.

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Damp-stained wall with peeling plaster
Moisture meter testing a damp plastered wall
Black mould and damp staining in the corner of a room
Why Choose Us for Damp Proofing

Why Choose Us for Damp Proofing

Book a damp survey in Knowl Hill and you will hear back from us the same day, receive a fixed written price and have your walls left ready to decorate.

Blown plaster and rising damp above the skirting board in the corner of a room

Diagnosis Before Any Treatment

We trace the moisture to its source first, so you only pay for the treatment that matches your damp rather than a standard package.

Readings You Can See

We show you the moisture readings and where we took them, so you understand why we are recommending a particular fix.

Walls Made Good

Treatment is followed by repairs to plaster and masonry, so you are left with a sound wall ready for decorating again.

A Vetted Firm

As a Checkatrade member we have been vetted, which gives you extra confidence before letting anyone treat your walls.

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Ring Royale Roofing Ltd, or leave your details for a quote.

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Damp Proofing Reviews

Book a Damp Inspection

Ring now, or leave a few details and a quote will follow.

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Damp Proofing: How It Works

How We Deal with Damp

Every damp job follows the same logic: find the cause, stop it, then repair what it has damaged.

1

Survey & Diagnosis

We inspect the affected rooms and the outside walls, take moisture readings and explain what is causing the damp.

2

Written Proposal

You receive a fixed written price setting out the treatment and the repairs we recommend for each affected wall.

3

Treatment & Repairs

The cause is dealt with first, then damaged plaster and masonry are removed and replaced with suitable materials.

4

Drying Out & Review

We clear away all debris, then we review the completed work with you and confirm everything has been done as agreed.

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Damp Proofing FAQs

Damp Proofing FAQs in Knowl Hill

Do You Carry Out Damp Surveys in Knowl Hill?

Yes. We inspect damp walls for homeowners in Knowl Hill, as well as Marlow, High Wycombe and Beaconsfield. We look at the affected rooms and the outside of the building, take moisture readings and explain whether you have rising damp, penetrating damp or condensation, then send a written quote at a fixed price.

Can You Repair Damp-Damaged Walls in Knowl Hill?

Yes. Once the cause of the damp has been dealt with, we remove plaster that has been spoiled by salts or moisture, repair any failed masonry or pointing and replaster the wall. In Knowl Hill and the other areas we cover, the repairs are set out on the same written quote as the treatment.

How Can I Tell Rising Damp From Condensation?

Rising damp usually shows as a tide mark and salt staining at the base of ground floor walls, and it is there whatever the weather. Condensation tends to appear as black mould on cold surfaces such as window reveals, corners and outside walls, and it gets worse in winter when windows are shut. Moisture readings help confirm which you have.

Does Every Damp Wall Need a New Damp Proof Course?

No. A new damp proof course only helps with genuine rising damp. Many damp walls are caused by rain getting through the masonry, a damp course that has been bridged by soil or a path, or condensation inside the room. Injecting a wall that has a different problem will not dry it out, which is why we diagnose before recommending anything.

Why Does Plaster Have to Be Removed After Treatment?

Moisture rising through a wall carries salts from the ground, and these collect in the plaster. Even once the source is stopped, salty plaster keeps drawing moisture from the air and stays damp to the touch. Removing it and replastering with a suitable mix gives you a dry surface that will take paint or paper properly.

How Long Does a Wall Take to Dry Out?

It depends on how wet the wall was, how thick it is, what it is built from and the time of year. Solid walls in older houses can take many months to dry fully. We will explain what to expect for your wall and when it is sensible to decorate, so new paint or paper is not spoiled by lingering moisture.
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