
Mould Removal in Southampton
Removal is the easy part. Stopping it returning is the job. 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.
Mould Removal 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.
Mould needs three things: spores, a food source and moisture. The first two are in every building. Remove the moisture and mould cannot grow, which is why cleaning it off without addressing the cause simply resets the clock by a few weeks.
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 mould removal works
Your quotation lists only what your property actually needs.
- Containment and HEPA-filtered extraction
- Biocidal substrate treatment
- Removal of contaminated porous materials
- Anti-mould coatings and breathable redecoration
- Ventilation and insulation remedial works
- Written cause and prevention report
Mould Removal in Southampton — answered
Bleach removes the colour and leaves the hyphae and the moisture behind, so the growth returns. It also adds water to the surface. A biocidal treatment applied after the source is fixed is the only durable route.
We arrange air and surface sampling where a health or legal question needs answering. For the majority of domestic cases the species does not change the remediation.
Where a vulnerable occupant is affected we prioritise the survey — usually within a few working days across our coverage area.

Free mould removal survey in Southampton
A qualified surveyor attends, tests properly and writes it down. No obligation, no sales visit, no charge.
Dorset · Hampshire · Wiltshire