Greater London · London and the South East
Roof leak investigation in Northumberland Park, Greater London
Tracing where water is getting into your roof in Northumberland Park, carried out by an experienced roof surveyor. Every survey comes with a written report and photographs.
- Damp underlay across a wide area
- Water through the ceiling under a flat roof
- Leaks at a dormer or roof window
What happens on the day
We photograph the roof as we go, so the report shows exactly what we saw. We take close-ups from wherever is safe. Most surveys take between one and two hours for most homes, though a hard-to-trace leak can take longer. In a London conversion, the way into the roof space is frequently from a communal landing or the top flat. If that applies to your building, it is useful to agree access with the neighbours or the managing agent first. Otherwise, the visit in Northumberland Park runs like any other.
- You let us know where the water appears, when, and what the weather was doing.
- 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.
- We email a written report showing where the water most likely gets in.
Before the survey
- Gather any invoices or paperwork from past roof work
- Check we can get to the back of the property
- Leave a clear route to the loft
Arrange a survey
If you have photos of the roof, send them over. Pictures from the ground or a window are fine, and please don’t climb up for a closer look. To get started, ring 07833 053749 or send us an email.
Advice
Roof leak investigation in Northumberland Park
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. Moisture detection is included in the Standard Survey, and thermal imaging in Premium. Thermal imaging works best after a sunny day, on a dry roof with little wind. Common reasons to book are wet patches on loft insulation and leaks below a flat extension roof, on the roof space, rooflights and dormers and flat roof details.
London’s Victorian and Edwardian roofs have frequently been repaired many times. Telling wear from a one-off event matters, because insurers usually exclude wear and tear. That’s as true in Northumberland Park as anywhere in London. Photos and a written account give you something specific to show an insurer, a landlord or a roofer.
After the visit, you get a written report with photographs, sent by email. It explains the condition of the leaking roof, the defects we found and what we recommend.
- Place
- Northumberland Park (N17, N18)
- Region
- Greater London
- Cost
- From £150 inc. VAT
- Your report
- Emailed report with photos and recommendations
- Appointments
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Landlords, agents and block managers in Northumberland Park
If the property is let, the agent or a tenant can let us in, at a time agreed in advance. We survey on weekdays, Saturdays and Sundays, which can make access easier.
Landlords, agents and building managers in Northumberland Park and across Greater London can book any of our surveys. For a price for a let property or a block, ring 07833 053749 or email us.
Towns and villages near Northumberland Park
Also in Northumberland Park
Before and after the survey
Some practical points come up on survey after survey. They apply to most roofs:
- Take dated photos of the leak
- Let us know what has already been tried
- Keep water away from lights and sockets
- Note the weather when the leak shows
We email the report to you, with photos of what we found. It explains the likely entry point, the route the water takes and our recommendations. Basic reports come within 48 hours, Standard within 24 to 48 hours and Premium the same day.
Keep the roof space ventilated. Good airflow reduces condensation, and condensation is a common false alarm. Keep insulation clear of the eaves.
Common questions in Northumberland Park
Is Northumberland Park in the area you cover?
Yes. We cover the whole of London and South East England, and Northumberland Park is part of that. You can ring 07833 053749 or send us an email with the address and some details.
Can parking be tricky for a visit in Northumberland Park?
London parking needs a little planning, so let us know about permits, bays or a driveway when booking. The visit is then planned around what’s available.
Is thermal imaging part of a leak investigation?
We use thermal imaging where it helps, and it’s part of the Premium Survey. It picks up temperature patterns rather than water, so we confirm its findings with moisture readings.
Is this an asbestos survey?
No. Our report may flag materials that could contain asbestos, but only a specialist asbestos surveyor can confirm it. It may be present in buildings built or refurbished before 2000.
Can you survey at the weekend?
We survey on any day from Monday to Sunday, during the day. Just say which days work for you.
How many surveys have you done?
We have completed more than 5,000 surveys, across 20+ years of surveying roofs, with 98% customer satisfaction.
Does the report include photos?
Yes. Photographs are part of every report, so you can see each point for yourself.
How the survey changes by roof type
Valleys
Debris in a valley slows the water and pushes it sideways. In heavy rain, it can spill under the edges of the slates or tiles.
Parapet and box gutters
A butterfly roof drains to a central valley gutter. If that gutter or its outlet fails, water can come through the top-floor ceiling.
Common roof problems in Northumberland Park
Condensation is often mistaken for a leak. Warm, moist air from the house rises into a cold roof space and condenses, particularly in lofts with blocked eaves. Wet nail tips and damp underlay over a wide area are classic signs.
It is worth booking a survey if you’ve seen:
- Damp on a chimney breast
- A leak that comes and goes with the weather
- Water marks that spread in wet weather
- Water dripping from rafters or underlay
If you look after a shop, office or commercial unit, for example near Edmonton Green Shopping Centre, finding where water is getting in quickly keeps disruption down.
Questions to ask before you book
- What they will not be able to tell you
- Whether they hold professional indemnity and public liability insurance
- Whether VAT is added on top
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
Roof leak investigations around Northumberland Park
About 0.8 miles south-west lies Bruce Castle, a reminder of how long the area around Northumberland Park has been built on. Older homes in the wider area often have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and any change of roofing material on a listed home needs checking with the council first. Further from the centre, London’s housing takes in interwar semis with hipped roofs in clay or concrete tiles as well as slate-roofed terraces. If your home in Northumberland Park is one of them, bay roofs, hips and later dormers each have their own details. Knowing the roof type helps narrow down where water may be getting in.
If you live in an older home near St Paul's Church, water on an older roof tends to find its way in at the lead, the valleys or the chimney. For site and facilities teams at buildings such as Lea Valley Primary School, water through a big roof can travel a long way before it drips, so the search covers more than the obvious spot.
Northumberland Park is about 1 mile north-east of Tottenham, in Greater London. From houses to flats and shops in Northumberland Park, the roof can be surveyed. Our Greater London coverage includes Northumberland Park and the places around it. London is in our area too.
Every address in N17 and N18 is covered for roof leak investigations. You will find streets such as Love Lane, Park Lane and York Road. Neighbouring places we cover for roof leak investigations include Upper Edmonton (1 mile north-west), Edmonton (1 mile north), South Chingford (1 mile east), Picketts Lock (2 miles north-east) and Highams Park (2 miles east). Within a short drive, we also cover London (7 miles south), City of Westminster (7 miles south-west), Marylebone (7 miles south-west), Kensington (10 miles south-west), St Pancras (6 miles south-west) and Shoreditch (6 miles south).
Around Northumberland Park
Around Northumberland Park, our work takes us to homes and buildings near Duke's Aldridge, No.8 Tottenham pub and London Academy of Excellence Tottenham and the streets around them. Northumberland Park has its own railway station: Northumberland Park (London) station. Well-known places in the area include North Middlesex University Hospital (0.9 miles north-west) and Markfield Beam Engine and Museum (1.6 miles south). Open spaces near Northumberland Park include Pole Hill and Highams Park Lake.
Should I look at the roof myself first?
The one thing to avoid is getting up close. Roofs are fragile and slippery. That part is for a survey, using safe viewpoints and a drone where it applies.
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.