Quick answer
3 verified damp survey specialists are based within 25 miles of Portsmouth, and 13 more cover the area from further away. The nearest is SHS Hants, based in Southampton — about 14 miles from Portsmouth.
Free, no obligation — your details only go to the specialists you choose.
Is it mould, condensation or something else in Portsmouth? A survey tells you which before you pay for a fix.
Southampton14 miles away
Local mould specialists for Southampton and Hampshire. Advanced techniques and non-toxic products to tackle mould at the source and prevent it from returning. Free survey and expert advice. Covers Southampton, Portsmouth, Winchester, Eastleigh and surrounding Hampshire areas.
Southampton16 miles away
Southampton's oldest specialist remedial contractor established 1974. 45+ years' experience serving Southampton, Bournemouth, Salisbury, Andover, Portsmouth and Chichester. Services include mould issues, damp proofing, tanking, condensation control, wall tie replacement and woodworm treatment.
Southampton17 miles away
Southampton's Most Trusted Damp & Preservation Specialists No guesswork. No upselling. Just honest, survey-led damp solutions backed by a 10-year guarantee.
Covers Portsmouth · based in East Morden, Dorset45 miles away
Covers Portsmouth · based in Bishop's Stortford, Hertfordshire90 miles away
Quoins Damp Surveyors provides independent damp and mould investigations for homeowners, buyers, landlords, letting agents and property professionals across Hertfordshire, Essex, London and surrounding areas. With extensive experience in building maintenance and remedial work, I investigate the causes of damp, mould and moisture damage and provide clear, practical advice on the next steps. Surveys include internal and external inspections, moisture readings, thermal imaging, humidity checks and an assessment of ventilation where appropriate. A written report explains the findings, likely causes and recommended remedial measures. I also offer drone roof inspections and aerial property photography to help identify visible defects in roof coverings, gutters, chimneys and other areas that are difficult to inspect from ground level, subject to suitable weather and safe flying conditions. Where required, remedial work can be quoted separately through Quoins Building Services. Damp surveys start from £300. Please contact Edmund Harrison to discuss your property and arrange an inspection.
Covers Portsmouth · based in Bournemouth, Dorset33 miles away
Covers Portsmouth · based in Poole, Dorset38 miles away
Leading providers of mould removal services in Southampton and Hampshire. Long-lasting solutions for eliminating damp and mould including condensation, penetrating and rising damp. Comprehensive mould removal and treatment services for commercial and residential customers. Free quotes available.
Covers Portsmouth · based in Tadworth, Surrey46 miles away
Covers Portsmouth · based in Carshalton, Greater London54 miles away
Specialist mould investigation and air decontamination company covering the whole UK. Identifies moisture issues, assesses mould responsibility, identifies health hazards and provides detailed expert witness reports. Offers air decontamination and comprehensive remediation solutions.
Covers Portsmouth · based in London63 miles away
20+ years' experience in professional mould removal, Awaab's Law compliant with IICRC and BDMA accreditation. Provides full audit trails required to meet Awaab's Law standards. HEPA air scrubbing and industrial biocides. End-to-end solution from damp surveying to comprehensive mould remediation.
Covers Portsmouth · based in Halstead, SevenoakS, Kent64 miles away
Covers Portsmouth · based in Tunbridge Wells, Kent67 miles away
Mould removal specialists based in Kent, also serving East Sussex including Brighton, Eastbourne, Hastings, Lewes, Newhaven, Seaford, Uckfield, Bexhill-on-Sea, Crowborough, Hailsham and Burgess Hill. Aims to be on-site within 24 hours. Competitive pricing with price matching.
Qualifications in Portsmouth: Of the 16 specialists listed, 2 are Property Care Association (PCA) members, 2 hold the CSRT (Certified Surveyor in Remedial Treatment) qualification and 8 have verified insurance.
A survey finds where the moisture is coming from before any work is priced: moisture readings, the pattern of staining and a written report that separates condensation, penetrating damp, plumbing leaks and — only where the evidence supports it — rising damp. That last one matters in Portsmouth: genuine rising damp is far rarer than it is diagnosed, and treating a wall that has condensation wastes the money and leaves the problem.
Look for a CSRT (Certified Surveyor in Remedial Treatment) or Property Care Association membership, and prefer a surveyor who isn’t also quoting for the treatment. An independent survey typically costs £200–£400.
In force for social housing in England since 27 October 2025; the private rented sector extension comes under the Renters' Rights Act 2025, with no confirmed date. Read the Awaab’s Law guide →
General questions about mould and damp → read the FAQ · About damp surveys