Greater London · London and the South East
Penge Roof Leak Investigation
Tracing where water is getting into your roof for Penge, from an experienced roof surveyor. Every survey comes with a written report and photographs.
- Water marks that spread in wet weather
- Drips from nail tips in a cold loft
- Staining where a gutter or parapet meets the wall
When to book a survey in Penge
When a slate slips or a tile cracks, the underlay takes the water. Ageing felt underlay eventually tears and lets water through, and very old roofs may have no underlay at all. On slate roofs, slipping is frequently caused by corroded nails.
A survey makes sense if you’ve noticed:
- A leak that comes and goes with the weather
- Leaks below a flat extension roof
- Drips from nail tips in a cold loft
- Drips in the loft during heavy rain
Landlords with a home close to Penge West station may find that finding the cause of a leak fast keeps a tenant’s home dry and the work focused.
Before you book anyone
- Is VAT included in the price?
- How long they’ve been surveying roofs
- Which limits apply to the survey
- Will the report include photos?
Roof leak investigation in Penge: what you get
Some leaks only appear in certain weather. Wind-driven rain, an overflowing gutter or snow melt may be what triggers it. Notes on when it leaks, and what the weather was doing, help us, along with any photos you’ve taken. We look for the clues it leaves behind, such as tide marks, stained timbers and damp underlay. Moisture detection shows which materials are still damp. Typical surveys look at water coming in around a roof light or dormer and damp on a chimney breast, across chimney stacks, valleys and parapet gutters and slate and tile slopes.
Many London homes are well over a century old and their roofs have been patched more than once, so a new leak can be the latest sign of wear rather than a single event. Telling wear from a one-off event matters, because insurers typically exclude wear and tear. A careful look in Penge tells the two apart where the evidence allows. A written record with photos helps you explain what was found to whoever deals with it next.
What you get is a clear record of the leaking roof on the day we saw it. That makes it useful now and a handy reference later, such as when you want to compare after future work.
- Place
- Penge (SE20, SE19, SE26)
- Wider area
- Greater London
- Cost
- From £150 inc. VAT
- Your report
- Emailed report with photos and recommendations
- Survey days
- Weekdays, Saturdays and Sundays
- Cover
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
Prices for roof leak investigations in Penge
Survey packages start from £150, with VAT included. The price for your roof depends on:
- Extra roofs, like extensions, dormers or garages
- The package you choose: Basic, Standard or Premium
- The shape of the roof and its details
- Commercial roofs and larger buildings
Every price we give includes VAT, and the written report is part of the package. Our price is from £150, including VAT. Where your roof sits in the range depends on its size, height and access.
Booking your survey
There is no need for technical words. It’s enough to let us know:
- Where any leaks, stains or damp patches show inside
- Why you want a survey: buying, a leak, a storm or new work
- What kind of property and roof it is
- Whether there’s a loft hatch, a shared roof or tricky access
To arrange a survey, phone 07833 053749 or email us and tell us the address and what’s prompted the survey. You will know the price before anything is booked.
Landlord and commercial surveys in Penge
Letting agents and landlords in Penge book surveys as well as homeowners. A written report with photos gives you a clear record of the leaking roof.
Letting agents can arrange access with tenants, at a time agreed in advance. Surveys run on weekdays, Saturdays and Sundays, which can make access easier.
The survey, step by step
The visit usually starts outside and finishes in the loft: first the slopes, edges and gutters from every safe viewpoint, then the roof space where it can be reached. In total, it takes between one and two hours, more where the leak is intermittent or the roof is large. Surveys in Penge can be booked for any day of the week. 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.
- We start with what you’ve seen: where the stain is and when it gets worse.
- The visit starts indoors, at the stain and in the loft.
- We check the likely entry points outside, such as flashings, valleys, chimneys and gutters.
- Moisture readings and thermal imaging are used where they help.
- You receive a written report with photos showing the likely source and what needs attention.
Before the survey
- Note where any stains or damp appear
- Have keys ready for side gates, garages or roof access doors
- For a flat or shared roof, check access with whoever owns or manages the building
Getting a price
When you’re ready to go ahead, phone 07833 053749 or drop us an email. From there it is a case of choosing a package, agreeing the price and fixing a day.
Read more
What a roof leak investigation looks like in Penge
About 1.4 miles north-west lies Kingswood House, a reminder of how long the area around Penge has been built on. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and any change of roofing material on a listed home needs checking with the council first. Welsh slate on Victorian and Edwardian terraces is a familiar sight across inner London. A butterfly roof with a central valley gutter, tucked behind a parapet wall, is common on these houses. Lead flashings, party-wall upstands and shared chimney stacks are typical of these houses, if yours is one of them. Knowing the roof type helps narrow down where water may be getting in.
Take a building like Harris Primary Academy Crystal Palace: tracing a leak on a big roof starts with where the water appears and works back. For an older house near a landmark like Church of St John the Evangelist, lead flashings, valleys and old chimneys are typical places for water to get in.
Penge is about 1 mile west of Beckenham, in Greater London. We carry out roof leak investigations in Penge for houses, flats, blocks and commercial buildings. Our Greater London coverage includes Penge. Our London page covers surveys nearby.
We work across SE20, SE19 and SE26 for roof leak investigations. Local streets include High Street, Anerley Station Road and Station Road. Penge sits on or near the A234. If you are just outside Penge, we cover Anerley (1 mile west), Crystal Palace (1 mile north-west), Sydenham (1 mile north), Gipsy Hill (1 mile north-west) and Upper Norwood (1 mile west). Further out, we also cover London (6 miles north), City of Westminster (8 miles north-west), Marylebone (8 miles north-west), Kensington (8 miles north-west), St Pancras (8 miles north) and Shoreditch (8 miles north).
Around Penge
Around Penge, our work takes us to homes and buildings near Crystal Palace School, Crooked Billet pub and Crystal Palace Dinosaurs. Penge has its own railway station: Penge West station. Nearby you’ll also find St Christopher's Hospice (0.5 miles north) and Crystal Palace Museum (0.8 miles north-west). Not far away are Dulwich Upper Wood and Knight's Hill.
Nearby places to Penge
Other services in Penge
Honest limits
This isn’t a RICS building survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- A structural engineer’s report
- Water from pipes, tanks or heating systems
- Carrying out the fix
If in doubt, call 07833 053749 or send us an email and we’ll point you to the right survey. What our survey covers.
Roofs we survey in Penge
- Rooflights and dormers
- Chimney stacks
- Lead flashings
- Slate and tile slopes
- The roof space
- Flat roof details
- Valleys and parapet gutters
Penge: your questions answered
Will parking be an issue for a roof survey in Penge?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.
Is Penge in the area you cover?
Yes, Penge is one of the places we work. Every survey there gets the same written report with photos.
Are you structural engineers?
No. We point out what can be seen, such as sagging or deflection, but we’re not structural engineers and do not carry out calculations. Where an engineer is needed, we say so in the report.
Will you fix the leak as part of this?
This service finds and reports the cause, not to carry out the repair. With the report, a roofer knows exactly where to look.
Do you need to get into the loft?
If there is a loft and safe access to it, yes. The roof space can show things the outside can’t, such as damp timbers, staining or daylight.
How long will you be at the property?
It normally takes about 1–2 hours at most homes, and about three to four hours for a commercial roof. Report times depend on the package.
Is this a RICS survey?
No. We’re experienced roof surveyors, and our survey covers the roof rather than the whole building. For the rest of the building, a RICS home survey is a separate job.
Leave it or get it looked at?
A leak that returns after a repair typically means the real source wasn’t found. We look past the obvious spot and check each likely route. That’s frequently what breaks the cycle. Blocked gutters and hoppers on London houses overflow and soak brickwork, which can lead to damp inside. A small blockage left for a few winters becomes a damp problem.
A Basic Survey starts from £150, inc. VAT. Standard is from £250 and Premium from £400. You will know the exact price before booking.
Why book with us
- Photos and a written report every time
- Insured for professional indemnity and public liability
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
- More than 20 years surveying roofs
See what a roof survey costs and what we found on two real jobs.