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Damp and Mould Treatment That Starts With the Cause

Mould is a symptom. Spray it, repaint it, and it returns with the next cold month, because the moisture that feeds it was never addressed. Multi Group diagnoses the cause first, condensation, penetrating damp, rising damp or a hidden leak, then fixes it and repairs the damage, across London and Essex, with the documented evidence trail that the Awaab's Law era demands.

First, an honest diagnosis

The three culprits look similar on the wall and need completely different cures. Condensation, the most common by far, comes from everyday moisture meeting cold surfaces and poor ventilation. Penetrating damp arrives through the fabric: failed roofs and gutters, cracked render, bridged cavities. Rising damp, rarer than the industry pretends, climbs from the ground where protection has failed. Our survey uses moisture readings and thermal imaging to name the actual culprit, and we tell you plainly, including when the fix is cheaper than you feared.

Fixing the cause

Because every trade is in house, the diagnosis flows straight into the cure: leak detection and repair, gutter and roof works, external render and pointing, extractor fans that actually shift air, positive input ventilation for whole property condensation, and damp proofing measures where the survey genuinely supports them. No handing you a report and wishing you luck finding four contractors.

Then, proper reinstatement

Once the wall is dry, we treat the mould safely, hazard clean rather than a wipe with bleach, then replaster with appropriate materials and redecorate in anti mould systems where they earn their keep. The room comes back finished, not just treated, and photographs of every stage land in your portal.

Landlords: this is the compliance topic of the decade

Awaab's Law already sets legal timescales for social landlords to investigate and fix damp and mould, and the Renters' Rights Act paves its extension to the private sector. Tribunals and councils increasingly expect evidence: when it was reported, when it was inspected, what was found, what was done. Our service produces exactly that file, dated survey, cause diagnosis, works record and completion photos, turning a legal risk into a documented, closed case. Agents across our patch now route every mould complaint through this process.

Frequently asked questions

Is it condensation or damp?

That is precisely what the survey answers with meter readings rather than guesswork. Condensation is the most common and often the cheapest to solve properly.

Can you just remove the mould?

We can clean it safely, but without fixing the moisture source it returns. We will always tell you the cause and quote the real fix alongside.

Does anti mould paint work?

As the final layer over a fixed problem, yes it helps. As the whole plan, no, and anyone selling it as one is selling you next winter's callback.

What do landlords get for compliance?

A dated survey with cause, moisture readings and photos, then a documented works and completion record. It is the evidence trail current regulation and tribunals expect.

How fast can you inspect a reported mould case?

Quickly, and for managed properties we prioritise them, because response time itself is now part of a landlord's legal footing.

Fix the cause, close the case

Book a damp survey with readings, photos and a straight answer. London and Essex wide.

Call 0208 22 66 7 88  WhatsApp