Leak to dry to treated, one company in Marylebone
Marylebone's housing runs from grand Georgian terraces and mansion blocks around Montagu and Bryanston Squares to mews cottages and post-war conversions near Lisson Grove. Many properties have solid brick walls, single-glazed sash windows and bathrooms squeezed into former box rooms, so heat loss and poor ventilation combine readily to create the damp, still air that black mould needs.
Mould Treatment
Treat and prevent the mould that follows water damage, dealing with the moisture source first. Mould treatment →
Damp Investigation
Tell rising damp, penetrating damp and condensation apart, so the right repair is done once. Damp investigation →
Leak Detection
Trace hidden water leaks without unnecessary damage using thermal, acoustic and tracer-gas methods. Leak detection →
Structural Drying
Dry walls, floors and voids after a leak or flood with monitored dehumidifiers, to completion. Structural drying →
Areas of Marylebone we cover
We treat mould right across Marylebone and its neighbourhoods, including:
- Marylebone Village
- Baker Street
- Marylebone High Street
- Regent's Park
- Fitzrovia
- Lisson Grove
- Bryanston Square
- Montagu Square
- Dorset Square
- Paddington Street
- Great Portland Street
- Marble Arch
- Portland Place
Common causes of mould in Marylebone homes
Cold solid walls in subdivided Georgian houses
Many Marylebone terraces were carved into flats decades ago, leaving solid nine-inch brick walls with no cavity insulation. These walls run cold internally, especially on north-facing bedroom elevations, and condensation forms wherever airflow is restricted. We regularly find black mould creeping up behind wardrobes, headboards and chests of drawers pushed against external walls in these converted flats.
Windowless bathrooms in mansion block conversions
Mansion blocks around Baker Street and Dorset Square were often reconfigured with internal bathrooms that have no external wall or opening window, relying entirely on mechanical extraction. Where fans are undersized, blocked or simply switched off, steam has nowhere to go and settles on ceilings and tiling grout. We treat the mould and check extraction rates so moisture actually leaves the building rather than migrating into neighbouring rooms.
Penetrating damp in lower ground and mews properties
Lower ground floor flats and mews houses near Lisson Grove sit close to pavement level, with old lightwells, ageing tanking or perished pointing that let ground moisture track through external walls. This shows as mould around window reveals, skirting boards and behind fitted furniture in bedrooms. We identify the specific entry point, whether it is failed damp-proofing or a blocked lightwell drain, before treating the mould itself.
What our customers say
Really impressed with the whole experience. The surveyor did a proper, thorough job and didn't rush anything, they got to the root cause of the damp and explained it all clearly. Detailed, professional and reassuring from start to finish. Couldn't recommend them more highly.
Keiryn Raf, via Google
Very professional and organised I must say came out and completed the work very efficiently customer service was excellent. Definitely recommend this damp and mould service to anyone looking for a job done correctly. :)
Joeie Rouse, via Google
I have been dealing with damp and mould for years but these guys were able to come in and resolve the problem quickly and professionally. Their prices were fair and reasonable and they got the job done clean. 10/10 would use again and would recommend.
Thersa Waron Eurmind, via Google
Mould problem in Marylebone?
Call 020 3051 8478 or book a mould survey online. We remove mould and fix the cause for homeowners, landlords and managing agents across Marylebone.