The short answer is that rising damp treatment costs depend on the length of wall to be treated, the extent of contaminated plaster removal, the reinstatement specification and the access conditions. A short run of DPC injection with localised replastering costs significantly less than a whole-ground-floor treatment.
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What is included in rising damp treatment
A typical rising damp treatment includes the chemical DPC injection itself, removal of salt-contaminated plaster to a specified height, preparation of the masonry background, application of a compatible plaster system and aftercare guidance. The quotation should clearly separate each element so you understand what you are paying for. Decoration, floor coverings, skirting boards and furniture removal are usually excluded unless specifically stated.
02
What affects the cost
The main variables are the linear metres of wall to be injected, the height and extent of plaster removal, the plaster system specified (standard, renovation plaster or lime), access conditions (rooms that need clearing, furniture to be moved, scaffolding), the number of rooms affected and the wall construction. Thick stone walls or rubble-filled walls may require different injection methods that affect the cost.
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Why the cheapest quote is not always the best
A low price that omits contaminated plaster removal, uses a minimal plaster specification or does not address bridging defects can result in repeat failure. The value of a treatment lies in the quality of the diagnosis, the suitability of the specification and the accountability of the company, not just the headline price.
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When to get a quotation
A reliable quotation follows a proper survey. We do not quote over the phone or from photographs alone, because the diagnosis determines the specification and the specification determines the cost. Book a survey and the quotation will be based on what your property actually needs.
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Dan, Director / Surveyor
Last reviewed: July 2026. Advice is general until the property, access and visible evidence have been assessed.
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Book an inspection when the problem is persistent, changing, purchase-related or unclear after basic maintenance checks.