Greater London · London and the South East
Roof leak investigation in Crook Log, Greater London
Not sure what state the leaking roof is in? We carry out roof leak investigations in Crook Log and across Greater London.
- Staining where a gutter or parapet meets the wall
- Brown rings on upstairs ceilings
- Leaks at a dormer or roof window
What we look for on each type of roof
Lead flashings
Lead flashings seal the joints at chimneys, walls and dormers. We check for lead that has lifted, split or slipped.
Parapet and box gutters
We check the linings, joints and outlets where we can see them safely, and look for signs of past overflowing.
How a roof leak investigation works in Crook Log
Some ‘leaks’ aren’t leaks at all. Condensation in a cold, poorly ventilated loft can drip from nails and timbers, leaving marks that look just like rainwater. Knowing which it is means the right fix can be done, because they need very different work. The pattern of the damp, the ventilation and the timing all help us decide. Typical surveys look at damp on a chimney breast and brown rings on upstairs ceilings, on flat roof details, valleys and parapet gutters and rooflights and dormers.
Many London homes are well over a century old and their roofs have been patched more than once. Insurers usually exclude wear and tear, so it is useful to know whether damage is old or new. That is as true in Crook Log as anywhere in London. A written record with photos helps you explain what was found to whoever deals with it next.
Where we can’t see part of the leaking roof, the report says so. You’ll know exactly what was inspected and what wasn’t.
- Place
- Crook Log (DA7, DA6, DA16)
- Wider area
- Greater London
- Prices
- From £150 inc. VAT
- Your report
- A written report with photos, by email
- Survey days
- Weekdays, Saturdays and Sundays
- Insurance
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Crook Log: your questions answered
Is parking a problem for a survey in Crook Log?
It depends on the street. Where there are permit zones, a visitor permit or nearby pay-and-display bay works well.
Is Crook Log in the area you cover?
Yes, Crook Log is within the area we cover. We cover the whole of London and South East England. You can phone 07833 053749 or send us an email with the address and some details, and we’ll talk through which survey suits.
Do you climb onto every roof?
Not unless it’s safe. Safe viewpoints, the loft space and a drone where it applies cover most of what’s needed.
Is this a RICS survey?
No. Our survey is a roof survey, not a RICS Level 2 or Level 3 survey of the whole building. It focuses on the roof, so it sits alongside a building survey rather than replacing it.
What’s the best way to book?
It is easiest to call 07833 053749 or use the contact form. Tell us the address and a little about the roof, and we will recommend the right survey. We survey on weekdays and at weekends.
Can you always find the source?
Not always, and we’ll be honest about that. Some leaks hide well, especially those that need wind-driven rain. If we can’t be sure, the report ranks the possible sources.
Do you look in the loft space?
Yes, where the survey calls for it and there’s safe access. Inside, we look for damp, staining, gaps and sagging, as far as the space allows.
Towns and villages near Crook Log
Other services in Crook Log
What happens if roof problems are left?
Damp loft insulation loses much of its value. Insulation can soak up water quietly before anything shows below. Catching it early limits what has to be replaced. A hidden valley or parapet gutter on a London house can hold water for weeks before anyone notices. When the stain finally shows, the damage underneath is often older than it looks.
Price depends partly on the package: from £150 for Basic, £250 for Standard and £400 for Premium, with VAT included. Size, height and access can affect the price too.
Why us?
- 98% customer satisfaction
- Insured for professional indemnity and public liability
- Visits on any day of the week
- An independent look at the roof
Rented homes, blocks and businesses
An agent can book and manage the survey for a landlord, and the report can go to both. We agree a time with the tenant beforehand.
Any of our surveys can be booked by landlords, agents and building managers in Crook Log. To discuss a property or a block, phone 07833 053749 or use the contact form.
How it works
Photos are taken throughout the visit, so the report shows exactly what we saw. We take close-ups from wherever is safe. A typical visit takes about one to two hours, more where the leak is intermittent or the roof is large. From the street, a London terrace normally shows only its front slope or parapet, so a visit in Crook Log moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. Shared stairs or a basement flat? Let us know who holds the keys.
- We start with your notes and photos of the leak.
- Inside, we check the stain and the ceiling around it.
- In the loft, we follow any signs of water back towards the roof.
- We inspect the likely entry points outside, from ground level, windows and the roof where safe.
- We email a written report showing where the water most likely gets in.
How to prepare
- Check we can get to the back of the property
- Find any records of previous roof work
- Let us know about parking near the property
How to book
If you have photos of the roof, send them over. Take them safely from the ground or a window; never climb up to get a better view. To get started, phone 07833 053749 or drop us an email.
Related advice
Common roof problems in Crook Log
Valleys carry a lot of water. Split linings, slipped valley tiles or debris can push water under the slates or tiles. Leaks from valleys frequently show up some distance away inside.
Problems we come across often include:
- Leaks at a dormer or roof window
- Ceiling stains that grow after rain
- A leak that comes and goes with the weather
- Water through the ceiling under a flat roof
Living close to Danson Park is pleasant, but mature trees mean leaves in gutters and valleys each autumn.
Choosing a roof surveyor
- Which limits apply to the survey
- Their insurance cover
- Do they have a CAA Flyer ID and Operator ID for drone work?
- Is there a chance to talk the report through?
Prices for roof leak investigations in Crook Log
The price reflects the time and kit the roof needs. The main factors are:
- Whether it is a home or a commercial building
- Which survey package you book
- The roof’s overall size
- The use of thermal imaging or a drone
Every price we give includes VAT, and the report isn’t charged as an extra. Roof leak investigation starts from £150, including VAT. Where your roof sits in the range depends on its size, height and access.
Booking your survey
A few details help us recommend the right survey and price. When you get in touch, it helps to mention:
- What’s prompted the survey
- The style of property, from a terrace to a block
- Any marks or damp showing indoors
- Any photos you have, taken from the ground or a window
To get a price for roof leak investigations in Crook Log, ring 07833 053749 or send us an email. A few details about the property and the roof help us price the survey accurately.
Roof leak investigations around Crook Log
In outer London, interwar semis with hipped, tiled roofs sit alongside older slate-roofed terraces. 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. About 0.3 miles south-east lies Red House, a reminder of how long the area around Crook Log has been built on. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and the council can say whether a home is in a conservation area.
For landlords with property near Bexleyheath station, a clear finding on where water gets in helps you brief a roofer straight away. Take an older house close to Trinity Baptist Church: the leak may come from a chimney, a valley or tired lead rather than the covering itself.
Crook Log is about 3 miles south-east of Plumstead, in Greater London. We provide roof leak investigations for homes and businesses in Crook Log and the surrounding area. Crook Log is one of the places in Greater London where we work. For surveys nearby, see our London page.
Postcode districts we cover here for roof leak investigations: DA7, DA6 and DA16. Streets in the area include Bean Road, Lion Road and Alers Road, all of which we cover. Other places close to Crook Log include Upton (1 mile east), Bexleyheath (1 mile east), Welling (1 mile west), Blendon (1 mile south) and Bexley (1 mile south). Larger places within reach include London (10 miles west), City of Westminster (13 miles west), Marylebone (12 miles west), Kensington (14 miles west), St Pancras (11 miles north-west) and Shoreditch (10 miles north-west).
Around Crook Log
We work in homes and buildings around Danson Park, St Columba's Catholic Boys' School and The Crook Log Public House, among other places. There is a railway station in Crook Log itself: Bexleyheath station. Other landmarks nearby include Bexley Museum (1.7 miles south-east) and Broadway Shopping Centre (0.9 miles east). Green spaces nearby include Summer Hill and Wansunt Pit.