Professional damp proofing services in Portsmouth

The head office of BWT Southern is located in Portsmouth. For over 17 years we have been providing accurate damp assessments and effective treatments for homes and businesses throughout the area. If you think your property is suffering from rising damp or mildew, get in touch with us today.

Expert damp treatments

BWT Southern specialise in locating and removing damp affected areas.

Damp treatment

If your home or business has rising damp or wet or dry rot, contact BWT Southern. We can provide an expert damp assessment and effective treatments.


Don’t know what to do with your underground areas? We can transform your basement into a clean, dry and usable room with our waterproofing services.

Local authority approved

BWT Southern is fully accredited and approved by all relevant local authorities. All work comes with an insurance guarantee with GPI.

High standards

We are proud of our reputation for quality workmanship and effective treatments against damp.

Portsmouth’s damp treatment specialists

BWT Southern is a leading damp company in Portsmouth. We can provide you with effective damp treatment, woodworm treatments, waterproofing and wall tie replacement services. Our offices are located in Portsmouth, Guildford, Salisbury and Bishop’s Waltham and our team operates throughout Hampshire, Surrey, Sussex, Wiltshire, Chichester, Farnham, Haslemere and Winchester.

workers pointing to brick wall

Customer testimonials

Don’t live with damp in your home. Request a callback today: