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Friern Barnet · N11, N20

Mould Removal & Treatment in Friern Barnet

Professional mould removal across Friern Barnet, 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 Friern Barnet homeowners, landlords & property managers
Quick answer: If you have black mould at a property in Friern Barnet, 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 Friern Barnet

Friern Barnet's housing runs from Victorian and Edwardian terraces around Woodhouse Road and Colney Hatch to 1930s semis near Friary Park and post-war flats close to the North Circular. Solid brick walls without cavities, ageing single-glazed sash windows and older bathroom extensions all struggle to shed moisture, so mould readily takes hold on cold external walls and in poorly ventilated corners.

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 Friern Barnet we cover

We treat mould right across Friern Barnet and its neighbourhoods, including:

Common causes of mould in Friern Barnet homes

Solid-wall Victorian terraces around Colney Hatch and Woodhouse Road

These homes have solid brick walls with no cavity, so cold spots form wherever furniture sits against an external wall or a chimney breast has been sealed up. Black mould spreads behind wardrobes and headboards in bedrooms, and on ceilings where old lath and plaster holds dampness. We treat the mould and improve airflow so it stays gone.

1930s semis near Friary Park with dated bathrooms

Many semis around Friary Park still have original or poorly extracted bathrooms, so steam has nowhere to go and condensation mould builds on tiled walls, window reveals and ceilings above the bath. Left untreated, it spreads into adjoining bedrooms through shared walls. We remove the mould and fit proper extraction to stop steam recurring.

Ex-council flats and conversions near New Southgate and the North Circular

Flats converted from larger houses or built as post-war blocks often have restricted through-draught, single-glazed windows and shared walls that stay cold, encouraging black mould around window frames and in unheated box rooms. Traffic noise on busy roads also means windows stay shut, trapping moisture. We fix the source, not just the staining, so it does not return.

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

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 Friern Barnet?

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

Frequently asked questions

How much does mould removal in Friern Barnet 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.