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Finchley · N2, N3, N12

Mould Removal & Treatment in Finchley

Professional mould removal across Finchley, 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.

★★★★★ 4.9 from 18 Google reviews · trusted by Finchley homeowners, landlords & property managers
Quick answer: If you have black mould at a property in Finchley, we remove it properly and deal with the moisture driving it, rather than painting over it. 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. We start with a damp and mould survey (£500) to find the cause, then treat the mould and fix the source. Call 020 3051 8478.

Leak to dry to treated, one company in Finchley

Finchley's housing runs from 1930s semi-detached and mock Tudor homes along Ballards Lane and Woodside Park to Edwardian terraces in East Finchley and Arts and Crafts houses in Hampstead Garden Suburb, plus interwar mansion blocks near Finchley Central. This mix of solid brick walls, older cavity fill, single glazing and compact bathrooms leaves many properties prone to condensation and damp, especially where original ventilation has been sealed up.

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 Finchley we cover

We treat mould right across Finchley and its neighbourhoods, including:

Common causes of mould in Finchley homes

1930s semi-detached homes and solid or poorly filled cavity walls

Many semi-detached houses around Woodside Park and West Finchley have solid brick sections or cavity walls with degraded insulation, letting moisture track through to internal plaster. Combined with north-facing bedrooms and box rooms used for storage, this produces cold patches where black mould appears on external walls and behind wardrobes, often mistaken for simple condensation rather than a fabric issue needing proper diagnosis.

Mansion block and low-rise flats with restricted ventilation

The interwar mansion blocks and 1960s-70s flats around Finchley Central and North Finchley often have small, windowless bathrooms and kitchens relying on extract fans that are undersized or broken. Steam and cooking moisture build up with nowhere to escape, settling on ceilings and around window frames. Shared walls and limited airflow between flats can also mean a leak or damp patch in one unit affects a neighbouring property.

Hampstead Garden Suburb and East Finchley period properties

The Arts and Crafts houses of Hampstead Garden Suburb and Edwardian terraces in East Finchley feature thick solid walls, original sash windows and pebbledash or render finishes that can trap moisture when damaged or poorly maintained. Penetrating damp from failed pointing or guttering, together with draught-proofing that restricts natural airflow, allows mould to spread across ceilings, behind furniture and in unheated spare bedrooms.

What our customers say

★★★★★

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

★★★★★

Very helpful and professional, easy to communicate with about my mould issues and I received fast responses from the company on the best solutions for me. would recommend to all friends and family. 5/5

Jensen B, via Google

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 Finchley?

Call 020 3051 8478 or book a mould survey online. We remove mould and fix the cause for homeowners, landlords and managing agents across Finchley.

Frequently asked questions

How much does mould removal in Finchley cost?
It depends on the cause and extent. We start with a damp and mould survey at £500 to find the moisture source, then quote the treatment. 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.