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What Causes Damp in Manchester Homes?

Greater Manchester averages over 800mm of rainfall each year. Persistent westerly winds bring moisture from the Irish Sea all year round.

What is damp proofing and how does it work?

Damp proofing means treating moisture at its source rather than covering it up. The most common method is a chemical damp proof course injection: a water-repellent compound introduced into the mortar bed that stops groundwater rising through the wall. This is different from surface waterproofing, which masks the problem temporarily. We survey first, diagnose the damp type, and apply the right treatment.

How much does damp proofing cost in Manchester?

Costs depend on damp type, the area affected, and whether replastering is needed. A standard damp proof course injection on a mid-terrace typically runs £800 to £1,500. Larger jobs or properties needing full ground floor replastering can reach £2,000 to £5,000 or more. The most accurate figure comes from a proper survey, which is why we offer a free no-obligation quote. We also match any like-for-like price.

How long does damp proofing treatment take?

A standard damp proof course injection takes one day in most cases. The drying-out period before replastering is the longer part: typically four to six weeks for the wall to reach a suitable moisture level, though this varies. We keep disruption to a minimum and work methodically through each area. Larger jobs requiring replastering across multiple rooms usually take two to three days from start to sign-off.

Is damp proofing covered by home insurance?

It depends on the cause. Sudden damage from a burst pipe or flood is often covered by buildings insurance. Gradual damp from a failed damp proof course is typically treated as a maintenance issue and may not be covered. Check your policy wording, particularly around ‘gradual deterioration’ clauses. We can help by documenting the damp’s cause and condition if you need to support a claim.