Speak to a Specialist
Speak to a Specialist
Friern Barnet · N11, N12, N20

Damp, Mould & Leak Specialists in Friern Barnet

Non-destructive damp surveys, hidden leak detection and mould investigation across Friern Barnet and the surrounding area, with clear, insurance-ready reports.

★★★★★ 4.9 from 18 Google reviews · trusted by Friern Barnet homeowners, landlords & property managers
Quick answer: If you have damp, mould or a suspected water leak at a property in Friern Barnet, our specialists carry out a non-destructive survey to find the root cause, then give you a written report and a clear plan to fix it. A full damp and mould survey is a fixed £500. Call 020 3051 8478.

Damp, mould & leak services in Friern Barnet

Friern Barnet's housing stock spans Victorian and Edwardian terraces around Friern Barnet Road and Woodhouse Road, 1930s semis towards Whetstone and Oakleigh Park, and converted flats within the former Colney Hatch Asylum buildings, now Princess Park Manor. This mix of solid-wall Victorian construction, interwar cavity brick and large-scale institutional conversion creates varied damp pathways, from rising damp in older terraces to condensation in poorly ventilated converted flats.

Leak Detection

Trace hidden water leaks without damage using thermal, acoustic and tracer-gas methods. Leak detection →

Damp Investigation

Identify rising damp, penetrating damp and condensation, and tell them apart properly. Damp investigation →

Mould Inspection

Find the moisture source feeding the mould, not just treat the surface. Mould inspection →

Structural Drying

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

Areas of Friern Barnet we cover

We survey properties right across Friern Barnet and its neighbourhoods, including:

Common damp problems in Friern Barnet homes

Solid-wall terraces along Friern Barnet Road and Woodhouse Road

Many Victorian and Edwardian terraces here were built with solid brick walls and no damp proof course, relying instead on lime mortar and breathable finishes. Later cement rendering and gypsum plaster trap moisture against the brickwork, causing rising damp at skirting level and hygroscopic salt staining. Original single-glazed sash windows also contribute to condensation on internal reveals during colder months.

Princess Park Manor and converted asylum blocks

The grand Victorian buildings of the former Colney Hatch Asylum, now subdivided into flats at Princess Park Manor, present deep floor plans and long internal corridors with limited natural ventilation. Bathrooms and kitchens converted from former institutional rooms often lack adequate extraction, leading to persistent condensation and black mould around window reveals, especially in ground and lower-ground floor units facing north.

1930s semis and estates towards Whetstone and Oakleigh Park

Interwar semi-detached homes near Whetstone and Oakleigh Park typically have cavity walls that were rarely designed for later retrofit insulation, and original clay pantile or slate roofs are now well past their intended service life. Failed cavity fill, cracked pointing and ageing flat-roofed rear extensions are common causes of penetrating damp and slow leaks into loft spaces and party walls.

What our customers say

★★★★★

Amazing company! They responding very quickly. They have a low prices as well, not crazy quotes like from others. Job has been done very quickly and team was very professional. I will use them in the future if I needed. Thanks!

Patryk Gutowski, via Google

★★★★★

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

Tip: If a damp patch keeps coming back after redecorating, it is almost always a symptom, not the problem. A survey that finds the source first saves paying for the same repair twice.

Book a survey in Friern Barnet

Call 020 3051 8478 or request a survey online. We work with homeowners, landlords and property managers across Friern Barnet. Works are on a 50% upfront, 50% on completion basis.

Frequently asked questions

How much does a damp survey in Friern Barnet cost?
A damp and mould survey is a fixed £500, including the non-destructive investigation and an insurance-ready written report. Leak detection, if needed, is £800 to £1500 depending on scale.
Do you cover the whole of Friern Barnet?
Yes. We survey properties across Friern Barnet and the surrounding neighbourhoods and postcodes.
Can you tell the difference between condensation, rising and penetrating damp?
Yes, and it matters because the fix differs for each. Our survey identifies which type you have using moisture readings and thermal imaging.
Do you provide reports for insurance claims?
Yes. Every survey comes with a clear written report including the cause, photographic evidence and recommendations, formatted for insurers and managing agents.