Greater London · London and the South East
Roof leak investigation in Old Oak Common, Greater London
Roof leak investigations for homes and businesses in Old Oak Common. More than 5,000 surveys completed across London and South East England.
- Drips from nail tips in a cold loft
- Damp patches next to the stack
- Stains around a skylight
How a roof leak investigation works in Old Oak Common
Moisture readings and thermal imaging are used where they’re useful. Moisture detection confirms where timbers, plaster or insulation are damp. A thermal camera shows patterns of temperature rather than water, so we confirm what it suggests with moisture readings. Thermal imaging is part of the Premium Survey, and moisture detection comes with Standard. Thermal imaging works best after a sunny day, on a dry roof with little wind. Typical surveys look at wet patches on loft insulation and water that shows only in certain storms, on the roof space, lead flashings and valleys and parapet gutters.
In a London flat, water can travel some way before it shows, sometimes in a different flat from the one below the defect. Tracing it back matters, both for dealing with the cause and for any insurance claim. In Old Oak Common, we inspect what we can reach safely and are given access to. It helps to know when the water appears and in what weather.
The report records the leaking roof as we found it on the day. It is useful straight away, and a good reference for later, for example when you want to check whether anything has changed.
- Location
- Old Oak Common (NW10, W3, NW26)
- Wider area
- Greater London
- Price
- From £150 inc. VAT
- Your report
- A written report with photos, by email
- Appointments
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Do you need a roof leak investigation in Old Oak Common?
Flashings are one of the commonest sources of roof leaks. Where a roof meets a chimney, a wall or a dormer, lead or mortar seals the joint. Once that seal cracks or lifts, water gets behind it, often well away from where it shows.
Here are some of the things we see frequently:
- Brown rings on upstairs ceilings
- Damp ceilings under a flat roof
- Wet patches high on an inside wall
- Water that shows only in certain storms
For site and facilities teams at buildings such as Old Oak Primary School, water through a big roof can travel a long way before it drips, so the search covers more than the obvious spot.
Questions to ask before you book
- Whether they hold professional indemnity and public liability insurance
- What experience they bring
- What’s outside the scope of the survey
- Is there a chance to talk the report through?
Useful tips for Old Oak Common property owners
A few practical points come up again and again on our surveys. They apply to most roofs:
- Let us know if there are tanks or pipes in the loft
- Catch drips in a bucket and protect the floor
- Mention earlier attempts to fix the leak
- Note the weather when the leak shows
Where we find more than one possible route, we say which is most likely and why. Recommendations are prioritised by urgency where relevant, so you know what to deal with first.
Plan a roof survey every few years. They’re where most leaks start, and catching wear early keeps water out.
Wind, rain and roofs in Old Oak Common
Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, frequently with hipped roofs of clay or concrete tiles. On a semi of that age, the small roofs over the bays, the hip tiles and any later dormer each need their own look. Each of these roof types has its own typical places for water to get in. Historic houses like Kelmscott House, about 2.5 miles south, show how far back building in the area around Old Oak Common goes. If your house is among the older ones, expect a mix of original materials and later repairs on the roof.
If you live in an older home near Church of Eritrean Orthodox Brent, old mortar, worn lead and slipped slates are the usual suspects when water gets in. Trees in and around Little Wormwood Scrubs shed leaves that can end up in nearby gutters, and an overflowing gutter soon means a wet wall.
Old Oak Common is about 1 mile south of Harlesden, in Greater London. We provide roof leak investigations for homes and businesses in Old Oak Common and the surrounding area. Across Greater London, we cover Old Oak Common and the places around it. We also survey roofs in London.
Here we cover the NW10, W3 and NW26 postcode area for roof leak investigations. Whether your property is on Atlas Road, Tubbs Road and Waldo Road or anywhere close by, we can help. We also cover College Park (1 mile north-east), Harlesden (1 mile north), Kensal Green (1 mile east), Park Royal (1 mile west) and North Kensington (1 mile east). Within a short drive, we also cover London (7 miles east), City of Westminster (4 miles east), Marylebone (4 miles east), Kensington (3 miles south-east), St Pancras (6 miles east) and Shoreditch (7 miles east).
Around Old Oak Common
Locally, jobs take us to homes and businesses close to Green Man Public House, Library for Iranian Studies and Star Chamber Academy, among other places. Also close by are Little Wormwood Scrubs (0.8 miles east) and St Claudine's Catholic School for Girls (0.8 miles north). Old Oak Common has its own railway station: Willesden Junction station. Other landmarks nearby include Westfield London (1.7 miles south-east) and Hammersmith Hospital (0.8 miles south-east). For a walk, there’s Hanger Hill Wood and Campden Hill.
Leave it or get it looked at?
Damp in a ceiling or loft can lead to mould. It’s unpleasant, and it is harder to deal with once established. Stopping the water is the first step. Many older London roofs have only old felt under the slates, or no underlay at all, so a slipped slate can soon mean water inside. Left alone, that means wet timbers and plaster, which is a far bigger job than the roof fault itself.
A small, low roof with good viewpoints takes less time than a tall, complicated one, and the package you pick makes a difference too. We will give you the figure before anything is booked.
Why choose Independent Roof Survey in Old Oak Common
- 5,000+ roofs surveyed
- Photos and a written report every time
- Surveys seven days a week
- An independent view of the roof
See how roof surveys are priced or what we found on two real jobs.
Nearby places to Old Oak Common
Other services in Old Oak Common
Common questions in Old Oak Common
Is my home in Old Oak Common listed or in a conservation area?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
Is parking a problem for a survey in Old Oak Common?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available as you book.
How should I prepare for the leak investigation?
Keep a note of when it leaks, and take photos. Move stored items away from the loft hatch. Keep away from any light or socket that water is reaching.
Do you need to get into the loft?
Where it’s relevant to the survey and there’s safe access, yes. A clear path to the hatch helps, and if the loft can’t be reached safely, the report says so.
Do I have to be there for the survey?
It depends on what we need to see. Inside the building and in the loft, we need someone to let us in.
Is it a leak or condensation?
Many apparent leaks turn out to be condensation. A leak normally shows in one area and follows rain, while condensation is frequently widespread and worst on cold days. The report explains which it looks like and what to do.
Is this an asbestos survey?
No. We don’t carry out asbestos surveys or testing. We flag materials that could contain asbestos, such as cement sheets or soffits on pre-2000 buildings and suggest a specialist asbestos surveyor checks them before any work.
Roof by roof
Lead flashings
Wherever a roof meets a wall or stack, a flashing keeps rain out. Lifted, split or slipped lead is a common cause, and for flashings that have been patched with bitumen.
Chimney stacks
We check the outside of the stack and the breast inside, and it isn’t a flue or gas safety check.
How the survey works
When we arrive, we begin with a quick chat about the roof and anything that’s worrying you. After that, we check everything we can see safely. The survey usually takes an hour or two, more where the leak is intermittent or the roof is large. London terraces rarely offer a view of the whole roof from one spot, so a visit in Old Oak Common moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. If other people live in the building, tell us who can let us into the shared parts.
- We start with your notes and photos of the leak.
- We examine the damp area and the rooms near it.
- In the loft, we follow any signs of water back towards the roof.
- Outside, we check flashings, valleys, chimneys, gutters and flat roof details from every safe vantage point.
- You receive a report with the likely source, photos and recommendations.
How to prepare
- If it isn’t your property yet, arrange access through the agent
- Let us know about parking near the property
- Have keys ready for side gates, garages or roof access doors
How to book
Not sure which survey you need? The easiest way is to call 07833 053749 or send us an email and describe the roof and why you want it surveyed. We’ll explain the options and the price.
Advice
For landlords and managing agents
If the property is let, the agent or a tenant can let us in. Surveys run on any day of the week, which can make access easier.
Freeholders and residents’ companies use a roof report to plan and budget, putting the urgent items at the top.