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Marylebone · W1U, W1G, W1H, NW1

Mould Removal & Treatment in Marylebone

Professional mould removal across Marylebone, treating black mould at the source. We find why the mould is there, condensation, penetrating damp or a hidden leak, then treat it and fix the cause so it does not come back.

★★★★★ 5.0 from 20 Google reviews · trusted by Marylebone homeowners, landlords & property managers
Quick answer: Damp & Mould Solutions UK removes and treats black mould at properties in Marylebone, and deals with the moisture driving it rather than painting over it. Mould treatment starts from £300, with a fixed price confirmed from photos or a short video before we attend. A leak is not over when the water stops. Mould can start within 48 hours, so we find the source, dry the structure and treat any mould, all with one company. If the cause of the moisture is not clear, a full damp and mould survey is a separate service, £500, or £450 when you book online and pay the deposit. Call 020 3051 8478.

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:

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

Excellent
Rated 5.0 / 5 based on 20 reviews on
Tip: Wiping mould off with bleach and repainting hides it for a few weeks, then it returns. Mould is a moisture problem, so unless the condensation, damp or leak feeding it is fixed, it always comes back.

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.

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Frequently asked questions

How much does mould removal in Marylebone cost?
Mould treatment starts from £300, with a fixed price confirmed from photos or a short video before we attend. If the cause of the moisture is not clear, a full damp and mould survey is a separate service, £500, or £450 when you book online and pay the deposit. Treating the surface without the source means the mould returns.
Is black mould in my home dangerous?
Black mould affects indoor air quality and is best removed promptly. We treat the mould and fix the moisture driving it, so the problem is dealt with at the cause.
Will the mould come back after treatment?
Not if the moisture source is fixed. We find and address the cause, whether condensation, penetrating damp or a leak, rather than just cleaning the surface.
Do you find what is causing the mould?
Yes. Every job starts by identifying why the mould is there, using a proper damp and mould survey, so the treatment lasts.

More help in Marylebone

Damp and mould survey

Find the real cause of damp, mould or a leak in a Marylebone property, with a written report and photographs. Damp survey in Marylebone →

Leak detection

Trace a hidden water leak in Marylebone using thermal, acoustic and tracer gas methods, with minimal damage. Leak detection in Marylebone →

Structural drying

Dry walls, floors and voids in Marylebone after a leak or flood, monitored to completion. Structural drying in Marylebone →

See what you get before you book: read a real survey report from start to finish.