If you've had a damp proof course (DPC) installed in your Bolton home, you may be wondering whether your walls need to be re-plastered too. The short answer is: sometimes yes – but not always.
At Weather Wise Solutions, we see many properties where damp proofing has been done correctly, but the walls are still damp. Often, this is because either salt-contaminated plaster was left behind — or there’s bridging plaster touching the floor and allowing moisture to bypass the DPC.
We’re a CPD-qualified, family-run damp proofing company, proud members of both the Damp Proofing Association and Federation of Damp, working across Bolton and the North West.
🧱 When Is Re-Plastering Required?
If your walls have suffered from rising damp, the moisture carries ground salts (like nitrates and chlorides) into the plaster. These salts remain active, attracting airborne moisture and continuing the damp cycle, even after the wall has dried out.
In these cases, the contaminated plaster must be removed and replaced with a vapour-permeable plaster system, such as those from PAM Ties.
🧱 When Might Re-Plastering Not Be Needed?
If your damp issue was caused by bridging plaster only – such as where the plaster touches the floor or crosses the DPC – and no salts are present, full re-plastering isn’t always required.
Instead, we may:
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Carefully cut back the plaster to remove the bridge
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Allow the wall to dry and monitor moisture levels
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Apply breathable repairs only where necessary
🔍 Common Signs to Look Out For
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Salt marks or “tide lines” suggest contamination
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Blown or peeling finishes may indicate salts
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Hollow sounding plaster at floor level could mean bridging
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A recent DPC install with no re-plastering may be incomplete
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No visual signs of salt? The issue could be resolved with minimal intervention
🛠️ Our DPC Aftercare Approach
At Weather Wise, we take a case-by-case approach. Here’s how we help:
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Check for salt contamination and moisture profiles
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Remove only what’s necessary
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Refinish using breathable materials if required
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Ensure plaster finishes do not bridge the DPC
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Never upsell what isn’t needed
We don’t offer reported surveys, but we’ll always refer you to a qualified surveyor when formal documentation is required.
✅ Why Choose Weather Wise?
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Local team serving Bolton and surrounding areas
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CPD-qualified and members of national trade bodies
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No unnecessary treatments — just what your home needs
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Friendly, honest advice and free home visits
📞 Book a Free Damp Assessment here with Weather Wise Solutions – Bolton’s trusted specialists in damp proofing and wall restoration.