Greater London · London and the South East
Roof Leak Investigation in Northfields
Tracing where water is getting into your roof in Northfields, carried out by an experienced roof surveyor. Every survey comes with a written report and photos.
- Staining around the chimney inside
- Wet patches on loft insulation
- Wet patches high on an inside wall
Roof leak investigation in Northfields: what you get
On a flat roof, water can travel a long way under the covering. Splits, blisters, failed laps, worn upstands and blocked outlets are common causes. Standing water puts extra pressure on every weak point. We check the roof surface and the ceiling below to narrow it down. Leaks under flat extension, garage and dormer roofs are common. Felt often lasts around 15 to 20 years, so age is part of the picture. If you’ve noticed damp walls below an overflowing gutter and wet patches on loft insulation, a survey will tell you what’s going on.
In converted houses and blocks across London, water from a roof can run a long way before it shows on a ceiling, sometimes in a different flat from the one below the defect. That makes the source hard to pin down, and finding it matters for whoever has to deal with it. In Northfields, we inspect what we can reach safely and are given access to. It’s useful to know when the water appears and in what weather.
Report times depend on the survey you book: Basic within 48 hours, Standard in 24–48 hours and Premium the same day.
- Location
- Northfields (W5, W13, TW8)
- Region
- Greater London
- Price
- From £150 inc. VAT
- Reports
- Emailed report with photos and recommendations
- Survey days
- Weekdays and weekends
- Insurance
- PI and public liability insurance
- Call
- 07833 053749
- Page updated
- 27 October 2026
Landlord and commercial surveys in Northfields
We also survey roofs for businesses and commercial landlords, from shops and offices to industrial units. Bigger roofs take more time, and they’re priced for the size.
Letting agents can arrange access with tenants, at a time agreed ahead of time. We survey on weekdays, Saturdays and Sundays, which can make access easier.
When you need someone else
It helps to know what a survey won’t do before booking:
- Putting the leak right
- What’s under the covering or behind the plaster
- Structural calculations (that is a structural engineer’s job)
If you are not sure which survey you need, call 07833 053749 or use the contact form and we’ll give you a straight answer before you book. What our survey covers.
What we check
- Rooflights and dormers
- The roof space
- Lead flashings
- Flat roof details
- Chimney stacks
- Valleys and parapet gutters
- Slate and tile slopes
Northfields: your questions answered
How do I find out if my home in Northfields is listed?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. The answer matters most when a change of material is on the cards.
Do you carry out roof surveys in Northfields?
Yes, Northfields is within the area we cover. We cover the whole of London and South East England. You can ring 07833 053749 or send us an email with the address and a few details.
What will the report tell me?
Written findings with photographs, explaining the condition of the leaking roof, any defects and our recommendations. Standard adds moisture detection and a structural check; Premium adds thermal imaging, drone inspection where applicable and structural analysis.
Is thermal imaging part of a leak investigation?
We use thermal imaging where it helps, and it’s included in our Premium Survey. It picks up temperature patterns rather than water, so we confirm its findings with moisture readings.
What should I do before you arrive?
Check the loft can be reached. Have any photos of the leak ready, plus details of past repairs. In the meantime, catch the water and keep it clear of lights and sockets.
What do I do with the report?
The report comes by email, and what you do next is up to you: raise it with a seller, send it to an insurer, brief a roofer or share it with a managing agent.
Do you need to get into the loft?
If there’s a loft and safe access to it, yes. From inside, the underside of the roof frequently shows damp, staining or daylight that cannot be seen from outside.
How it works
We work from the outside in: outside views come first, then the roof space if there is safe access. All told, expect between one and two hours for most homes, though a hard-to-trace leak can take longer. In Northfields, visits are available on weekdays and at weekends. It helps if you can point us to a visitor permit or a nearby bay. A back bedroom window can be the best vantage point for a rear addition, so we may ask to use one.
- You pick a Basic, Standard or Premium Survey.
- We agree a date, including weekends.
- The investigation works from the stain back to the roof.
- Moisture detection and thermal imaging are used where your package includes them and they help.
- The report explains the likely entry point and what needs attention.
Getting ready for the survey
- Have any paperwork from past roof work to hand
- If the roof is shared, arrange access with whoever manages the building
- Buyers: confirm access with the estate agent or seller
Book a survey
To book a survey, phone 07833 053749 or use the contact form and let us know the address and what’s prompted the survey. You’ll know the price before anything is booked.
Related advice
DIY checks: what’s safe
After strong wind, take a look from the pavement or garden: broken slates or tiles in the garden, gaps along the ridge or loose lead are signs to note. Leave anything above ground level to a survey.
Watch the gutters in a downpour, from a window or the ground. Overflowing water can point to a blockage or a sagging run.
Prices for roof leak investigations in Northfields
To price your survey, we look at:
- Height and safe access
- Whether you choose the Basic, Standard or Premium Survey
- How big the roof is
- Whether thermal imaging or a drone is needed
A small, low roof with good viewpoints takes less time than a tall, complicated one, and the package matters as well. The price is always agreed first.
Booking your survey
We will typically ask about:
- The reason for the survey, such as buying, a leak or storm damage
- Where any leaks, stains or damp patches show inside
- What kind of property and roof it is
- Access details, such as a loft hatch or a shared roof
Photos help, if you have them. Pictures from ground level or a window are fine; never climb up to get a better view. To get started, call 07833 053749 or use the contact form.
Practical tips
A few practical points come up again and again on our surveys. They apply to most roofs:
- Check whether pipes or tanks run near the stain
- Write down the wind direction and rain when it leaks
- Mention earlier attempts to fix the leak
- Clear the loft hatch so we can get in
The report gives whoever carries out the work a clear starting point. They’ll see exactly where the problem is, so the repair is aimed at the cause.
Don’t block the vents at the eaves. Good airflow reduces condensation, and condensation is a common false alarm. Check insulation does not block airflow at the eaves.
Also near Northfields
More services for Northfields
Wind, rain and roofs in Northfields
In outer London, interwar semis with hipped, tiled roofs sit alongside older slate-roofed terraces. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. The covering and its details give the first clues when tracing where water is coming from. Historic houses such as Boston Manor, about 0.5 miles south, show how far back building in the area around Northfields goes. Older homes in the wider area often have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years, and a listed home or one in a conservation area may need consent for changes of material.
If you own a rental within reach of Brentford station, finding the cause of a leak fast keeps a tenant’s home dry and the work focused. Hotels and guest houses near Northfields can’t easily close rooms for a leak. Homes near green spaces such as Lammas Park can get more leaves in their gutters in autumn, and blocked gutters overflow and soak walls.
Northfields is about 1 mile south of Ealing, in Greater London. Northfields is one of many places we visit across Greater London, for houses, flats and commercial buildings. Our Greater London coverage includes Northfields. London is in our area too.
Surveys in W5, W13 and TW8 are booked the same way as anywhere else. We offer roof leak investigations to properties on Burns Road, South Road and Elers Road. Northfields is on the A3002, so it is easy for us to get to. Other places close to Northfields include Brentford (1 mile south-east), Gillette Corner (1 mile south-west), Brentford End (1 mile south), Osterley (2 miles south-west) and Spring Grove (2 miles south-west). Within a short drive, we also cover London (9 miles east), City of Westminster (7 miles east), Marylebone (7 miles east), Kensington (5 miles east), St Pancras (9 miles east) and Shoreditch (10 miles east).
Landmarks near Northfields
Typical jobs here are in homes near Ealing Fields High School, Great Ealing School and Ealing Park Tavern, among other places. Also close by are Library for Iranian Studies (1.8 miles east) and Lammas Park (under half a mile north). The closest station to Northfields is Brentford station, roughly 0.8 miles south of the centre. Well-known places in the area include Gunnersbury Park House - Large Mansion (1.2 miles east) and Treaty Centre (3 miles south-west). Green spaces nearby include Middle Lake and Long Wood.