Urgent repair
Call to discuss the fault
Call to discuss active water ingress or extensive recurring moisture damage. Report damp and mould promptly to the responsible landlord or building manager.
Call 020 4571 4235Mayfair · Damp & mould investigation
Damp patches, recurring mould or water coming through a wall?
Tell us what needs doing. We’ll organise the right help and explain the price.
All London boroughs · Homes, landlords & managed properties · Your area: Tooting
Investigation is quoted to scope. Specialist surveys, laboratory testing, waterproofing systems and reinstatement are separate unless expressly included. A visual inspection is not a structural or mortgage survey.

Find out what is causing the moisture before paying for a treatment. Mayfair arranges investigation of damp, condensation and water ingress across London, then helps coordinate the agreed source repairs and making good.
Start with what you can see
You do not need to know the technical name. Choose the description that fits, then see the repair options and what to include in your enquiry.
Appearance alone cannot establish the cause. Tell us whether the patch follows rain, use of plumbing or cold weather, and whether it changes size. Mayfair can arrange the appropriate investigation; a moisture reading by itself is not a complete diagnosis.
Repainting does not resolve the source of recurring moisture. Describe the affected rooms, ventilation and any signs of leaks. Investigation should establish the cause and suitable remedial scope before decorating is arranged.
No. Low-level staining or damaged plaster is a symptom, not proof of rising damp. Leaks, external moisture and other causes need consideration. Request an investigation before committing to injection treatment, replastering or waterproofing.
The work, explained
Investigation is quoted to scope. Specialist surveys, laboratory testing, waterproofing systems and reinstatement are separate unless expressly included. A visual inspection is not a structural or mortgage survey.
Help us plan your visit
Choose the closest job
Not sure why a wall feels damp?Damp surveys & investigationScope, costs & enquiry →
Mould keeps returning around windows or walls?Condensation & recurring mould investigationScope, costs & enquiry →
A wall becomes wet after rain?Penetrating damp investigationScope, costs & enquiry →
Damp or damaged plaster near the skirting?Rising damp assessment & investigationScope, costs & enquiry →
Water entering through an outside wall?External wall leak investigationScope, costs & enquiry →
Water entering a basement or lower-ground room?Basement leaks & waterproofing assessmentScope, costs & enquiry →Investigation is quoted to scope. Specialist surveys, laboratory testing, waterproofing systems and reinstatement are separate unless expressly included. A visual inspection is not a structural or mortgage survey.
The final price depends on the work, materials, access and time required. Share photos and the full brief so we can explain the visit and what is included before you book.
Workmanship cover, duration and exclusions are set out in the written quotation. Product warranties follow their manufacturer’s terms.
Direct to Mayfair · No chat required
Tell us what’s happening and where. We’ll help you work out the next step and what it costs.
No account needed. No payment to send an enquiry.
This is not an emergency response service. Do not wait for an online reply if there is an immediate risk to people or property.
How quotes and orders work →
Help us plan your repair
Describe the affected rooms, how long the problem has existed and whether it follows rain or use.
London coverage
For a Tooting terrace or converted flat, distinguish work inside your own rooms from a fault involving a shared drain, entrance or neighbouring home. Recurring problems need the earlier findings as well as new photographs.
Send the investigation report, treatment specification and the timing of recurrence. Different causes can produce similar marks. The next scope should consider why the previous work has not resolved the symptoms.
Include reports from the room above or adjoining home, the dates of visible changes and any earlier investigations. The source may need access outside your own rooms. We scope the investigation before recommending a treatment.

Example work, explained
Need similar work at your Tooting property? Tell us the symptoms and access arrangements.
Mention previous clearances or repairs, the rooms affected and who can arrange access to shared passages or another property. Flag the loss of an essential facility.
No. Readings are considered alongside the material, visible condition and wider evidence. A treatment should not be selected from a single reading alone.
Not from the patch alone. Inspection, symptom history and sometimes coordinated access are needed to distinguish water ingress, a leak and other moisture mechanisms.
Other places in the linked boroughs include Clapham, Battersea, Putney, Balham, Tooting. These are service areas, not separate Mayfair offices.
Tooting Broadway and Tooting Bec help locate an enquiry within the wider Tooting area. SW17 is shared with other named places; it is not an exclusive Tooting boundary.
All maintenance services in Tooting →
Local postcode examples: SW17. These are examples of addresses associated with Tooting, not a complete or exclusive boundary.
Wandsworth: SW11, SW12, SW15, SW16, SW17, SW18, SW19, SW4, SW8.
These are borough-wide postcode associations. A district can cross boroughs and include other neighbourhoods or addresses outside London. Even a full postcode shown in the finder gives district suggestions, not an address check. Give the street address and full postcode when booking.
Area and postcode references: Wandsworth: local library addresses. Neighbourhood names and conservation-area boundaries are different things; council requirements depend on the actual property.
Borough postcode reference: ONS Postcode Directory, August 2026. Active small-user postcodes allocated by ONS to London authorities; this is a browsing guide, not an appointment or address-validation service.
Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.
Photos help describe the symptoms but do not prove the cause. Building condition, moisture sources and the history of the problem need consideration before a treatment is recommended.
Investigation is quoted to scope. Specialist surveys, laboratory testing, waterproofing systems and reinstatement are separate unless expressly included. A visual inspection is not a structural or mortgage survey. We provide a quote including VAT for the agreed work.
Yes. We cover Tooting, with coverage across its wider borough and all other London boroughs. Send your full postcode and work details to arrange the right attendance.