Greater London · London and the South East
Roof leak investigation in Rainham, Greater London
A careful look at the leaking roof at your property in Rainham, and put it all in a written report with photos.
- Damp underlay across a wide area
- Water marks that spread in wet weather
- Leaks at a dormer or roof window
Leave it or get it looked at?
Patching the spot above the stain often doesn’t work. The real way in may be a metre or more away. An investigation finds the likely cause first. London’s older roofs frequently have bitumen felt underlay or none 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.
All our prices include VAT. Our price is from £150, including VAT. We confirm the price for the job before booking.
Why us?
- Over 20 years’ experience
- 98% customer satisfaction
- Prices that include VAT
- Weekday and weekend surveys
Take a look at our cost guide or two real surveys.
Roof leak investigation in Rainham
Our job is to find the likely source and tell you. You get a photo-illustrated written report showing the likely entry point and the route the water is taking, plus recommendations on what needs attention. Whoever does the work then has a clear starting point. We find and report the source, while the repair is a separate matter. We’re often asked to look into damp underlay across a wide area and drips in the loft during heavy rain, across the roof space, lead flashings and flat roof details.
Water getting into a London home frequently comes from a detail you can’t see from the street: the valley gutter in a butterfly roof, a parapet gutter, a chimney flashing or the flat roof over a rear extension. For a leak or storm damage in Rainham, those hidden details are where the inspection begins. Water from a hidden gutter can run along joists and show up a room or two away.
The report is yours to share with whoever needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent.
- Place
- Rainham (RM13)
- Region
- Greater London
- Prices
- From £150 inc. VAT
- Report
- A written report with photos, by email
- Appointments
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Nearby places to Rainham
More services for Rainham
Tips that help
These tips come from what we see on roofs every week:
- Make sure the loft is accessible
- Leave roof access to professionals
- Mention any plumbing above the damp area
- Catch drips in a bucket and protect the floor
If there are several possible sources, we list them in order of likelihood. Recommendations are prioritised by urgency where relevant, so you know what to deal with first.
Have flashings and flat roofs looked at every few years. Flashings, valleys and flat roof details are frequent weak points, and catching wear early keeps water out.
Signs you need a roof leak investigation in Rainham
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. When lead lifts or splits, or a mortar fillet cracks, rain runs straight in.
People normally book a survey after spotting one of these:
- A leak that comes and goes with the weather
- Water coming in around a roof light or dormer
- Damp on a chimney breast
- Ceiling stains that grow after rain
Homes near green spaces like Wildspace Conservation Park can get more leaves in their gutters in autumn.
Questions to ask before booking
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- What the report includes, and whether it has photos
- Whether the price includes VAT
- Their insurance cover
What a roof leak investigation does not cover
To be straight with you, there are limits to any roof survey:
- The repair itself (the investigation finds and reports the cause)
- Structural calculations (that’s a structural engineer’s job)
- What’s under the covering or behind the plaster
If you are not sure which survey you need, phone 07833 053749 or drop us an email and we will give you a straight answer before booking. What our survey covers.
Roof types and parts we check
- Slate and tile slopes
- Lead flashings
- Rooflights and dormers
- Chimney stacks
- The roof space
- Flat roof details
- Valleys and parapet gutters
What a survey costs
Not every roof costs the same to survey, and it comes down to:
- Height and safe access
- Which survey package you book
- The number of roofs, including extensions and garages
- Features like valleys, chimneys, dormers and parapets
Thermal imaging and drone inspection (where applicable) come with the Premium Survey, which starts from £400, inc. VAT. We will tell you which package suits the questions you have.
Getting in touch
Getting the details right at the start saves time. It helps to include:
- Whether there’s a loft hatch, a shared roof or tricky access
- What’s prompted the survey
- Where any leaks, stains or damp patches show inside
- What kind of property and roof it is
To arrange a survey, phone 07833 053749 or send us an email and tell us the address and what’s prompted the survey. We’ll confirm the price before booking.
Questions from Rainham
Do you carry out roof surveys in Rainham?
Yes, Rainham is one of the places we work. Every survey there gets the same written report with photographs, and visits run on weekdays and weekends.
Is my home in Rainham listed or in a conservation area?
The council and Historic England’s list are the places to check. It is worth checking before planning roof work, as both can affect what’s allowed.
What happens after the survey?
You will receive the report by email, and you decide the next step: use it with a seller, an insurer, a roofer or a managing agent.
Will you walk on the roof?
Only where it’s safe to do so. We inspect everything that’s safely in view: from the ground, from windows and vantage points, from the roof space, from the roof itself where safe and by drone where applicable. The report says if anything couldn’t be seen.
How do you tell a leak from condensation?
The two can look alike. Widespread damp on the underside of the roof in cold weather, with blocked vents, suggests condensation. We check the pattern, take moisture readings and tell you which is more likely.
Will you fix the leak as part of this?
The investigation is about finding the cause. The repair isn’t part of it. You get a report with photos showing where the water is getting in and what needs attention.
Is there anything I need to do before the visit?
Keep a note of when it leaks. Clear access to the loft. If water is near any fittings, have an electrician check them.
Roof leak investigations in Rainham: local notes
Rainham Hall, about 0.2 miles west, is one of the historic houses in the wider area around Rainham. 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. Outer London has a good many Victorian and Edwardian terraces with slate roofs, but also a great many interwar semis, frequently with hipped roofs in clay or concrete tiles. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. Different coverings let water in at different points, which shapes where the search starts.
Take an older house close to Church of St Helen and St Giles: water on an older roof tends to find its way in at the lead, the valleys or the chimney. If you let a flat or house near Rainham (Essex) station, a tenant living with a leak needs the cause found, not just the stain painted over.
Rainham is about 4 miles south of Romford, in Greater London. In Rainham, as across Greater London, every roof gets the same careful survey. Our area takes in places right across Greater London, from the larger towns to small villages. Our London page covers surveys nearby.
Here we cover the RM13 postcode area for roof leak investigations. That includes homes and businesses on New Road, Ferry Lane and Wantz Lane. We also cover the places around Rainham: South Hornchurch (1 mile north-west), Beam Park (1 mile west), Hornchurch Marshes (1 mile west), Dagenham Green (2 miles west) and Elm Park (2 miles north). Further out, we also cover London (13 miles west), City of Westminster (15 miles west), Marylebone (15 miles west), St Pancras (13 miles west), Shoreditch (12 miles west) and Walthamstow (11 miles north-west).
Near you in Rainham
Locally, jobs take us to homes and businesses close to Harris Academy Rainham, The Chafford School and The Phoenix pub and the streets around them. Rainham has its own railway station: Rainham (Essex) station. Nearby you’ll also find St George's Hospital (2.3 miles north-east) and Erith Museum (2.6 miles south). The countryside around Rainham includes Ingrebourne Marshes.
How it works
We work from the outside in: first the slopes, edges and gutters from every safe viewpoint, then the loft space where it can be reached. In total, it takes about 1–2 hours on an ordinary house, though large, tall or awkward roofs take more time. In Rainham, visits are available on weekdays and at weekends. It helps if you can point us to a visitor permit or a nearby bay, and to clear a path to the loft hatch. 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.
- Where it’s useful and included, we take moisture readings and use thermal imaging.
- The report explains the likely entry point and what needs attention.
How to prepare
- Leave side gates unlocked
- Jot down any questions you want answered
- If you’re buying, check with the agent that we can get in
How to book
Roof leak investigation starts from £150, including VAT. The exact figure depends on the roof and the package, so call 07833 053749 or use the contact form with the details.