Damp Proofing in Southampton
Diagnosis first, then the right remedial specification — never a blanket injection quote. Surveyed and carried out by our own Hampshire-based teams, with a written report and a 25-year insured workmanship guarantee.
Covering Dorset · Hampshire · Wiltshire
Book a Southampton survey
1/3Takes under a minute. A qualified surveyor attends — never a salesperson.
No obligation, no sales visit. Your details are used only to arrange the survey.
Damp Proofing written for Southampton building stock
Terraced SO15–SO17 housing is typically 1880–1914, solid nine-inch brick, suspended timber ground floors and shared chimney stacks. Much of it now operates as student or shared accommodation, with occupancy levels well above what the original ventilation was designed for.
Damp is rarely one problem. A single wet wall can be rising moisture through failed masonry, water tracking laterally through saturated brickwork, a bridged damp-proof course under a raised path, or condensation collecting on a cold internal surface. Each of those has a different fix, and treating the wrong one is why so many homeowners pay twice.
Local faults that lead to this work
- 01
Overcrowded ventilation in shared housing
HMOs and student lets generate far more moisture than intermittent bathroom extract can remove, producing widespread bedroom mould.
- 02
Solid nine-inch wall penetration
With no cavity, driven rain on an exposed gable crosses directly to internal plaster.
- 03
Shared chimney stack ingress
Long terraces with neglected stacks produce high-level damp on breasts in the rooms below.
- 04
Buried airbricks in rear yards
Concreted and raised rear yards seal sub-floor ventilation, leading to joist-end wet rot.
Scope of damp proofing works
Your quotation lists only what your property actually needs.
- Chemical damp-proof course injection to BS 6576
- Removal of contaminated plaster and salt-laden render
- Salt-retardant renders and breathable finish systems
- External pointing, render and ground-level correction
- Bridging removal — raised paths, debris-filled cavities, high render
- Sub-floor ventilation and airbrick reinstatement
Damp Proofing in Southampton — answered
Often not. A large share of the walls we survey are wet for a reason that injection would not touch — a bridged DPC, a leaking gully, a failed lead flashing or condensation. We only specify injection where readings and salt profile genuinely indicate rising moisture.
A single wall in an average terraced or semi-detached home is usually two to three days including replastering. Whole-property work runs to one or two weeks. We give you a working programme with the quotation.
New render needs time to cure and release construction moisture. Allow roughly a week per 5mm of thickness before using a mist coat of breathable emulsion, and avoid vinyl papers or oil-based paint for the first few months.
Yes. The 25-year workmanship guarantee is registered against the property, so it passes to a buyer and can be produced for a mortgage valuer or solicitor.
Free damp proofing survey in Southampton
A qualified surveyor attends, tests properly and writes it down. No obligation, no sales visit, no charge.
Dorset · Hampshire · Wiltshire