Greater London · London and the South East
Roof survey in Derry Downs, Greater London
Know where you stand with the roof before you spend money on it. We carry out roof surveys in Derry Downs, with photos and a clear written report.
- Leaking gutter joints and downpipes
- Crumbling chimney pointing or cracked flaunching
- Debris building up in roof valleys
What a survey costs
To price your survey, we look at:
- How tall the building is and how easy the roof is to see
- The roof’s overall size
- How many separate roofs there are, such as extensions, dormers and garages
- The shape of the roof and its details
For a price for your roof in Derry Downs, ring 07833 053749 or drop us an email and let us know about the roof. The price is agreed before a date is set.
Helping us price your survey
To price your survey accurately, we’ll ask about:
- Any deadline, such as an exchange date
- Any stains, drips or damp patches you’ve seen indoors
- Pictures from the garden or a window, if you have them
- Your postcode, so we can check access and travel
When you are ready to go ahead, phone 07833 053749 or email us. We will suggest a package, agree the price and find a date.
How a roof survey works in Derry Downs
Across London and South East England, roofs differ widely. A Victorian or Edwardian terrace may have slate, a central valley gutter and parapet walls, and many post-war homes have concrete interlocking tiles instead. We adapt the survey to the roof in front of us. Older tiled homes may have clay plain tiles, and many homes have a flat-roofed extension too. Each part is checked in the way that suits it. We’re frequently asked to look into torn or sagging underlay and cracked or blistered flat roof coverings, across ridges, hips and valleys, the roof space and lead flashings.
London has a great many flats in converted houses and purpose-built blocks, where the roof is usually a shared part of the building. Landlords, managing agents and residents’ companies need to know what condition it’s in and what work is coming up, in Derry Downs as anywhere. Leaks from a shared roof rarely affect just one home. A report gives everyone the same picture to plan from, with photos.
After the visit, you get a photo-illustrated written report, sent by email. It explains the condition of the roof, the defects we found and what we recommend.
- Place
- Derry Downs (BR5, BR6)
- Wider area
- Greater London
- Cost
- From £150 inc. VAT
- Report
- Emailed report with photos and recommendations
- Survey days
- Weekdays, Saturdays and Sundays
- Insurance
- Professional indemnity and public liability
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Derry Downs homes and their roofs
About 3.9 miles south-east lies Lullingstone Castle, a reminder of how long the area around Derry Downs has been built on. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and any change of roofing material on a listed home needs checking with the council first. Where the drone is part of the survey, the flight is checked against the Drone Safety Map first.
For site and facilities teams at buildings like St Philomena's Primary School, its roofs, gutters and any chimneys need the same checks as a house’s, just on a bigger scale. For landlords with property near St Mary Cray station, a dated record of the roof is useful when planning maintenance across a let. As a London address, Derry Downs can be tricky for parking: let us know about permits, visitor bays or off-street space when booking, as a space near the door can’t be promised.
Derry Downs is about 1 mile east of Orpington, in Greater London. Roofs in Derry Downs get the same thorough look as anywhere else in Greater London. Our area takes in places right across Greater London, from the larger towns to small villages. Our London page covers surveys nearby.
Surveys in BR5 and BR6 work the same way as everywhere else we cover. You will find streets such as Kent Road, Park Road and Cross Road, all of which we cover. With the A224 close by, Derry Downs is simple for us to get to for roof surveys. We also cover Orpington (1 mile west), St Mary Cray (1 mile north-west), Poverest (1 mile north-west), Kevington (1 mile east) and St Paul's Cray (1 mile north). Within a short drive, we also cover London (12 miles north-west), City of Westminster (15 miles north-west), Marylebone (15 miles north-west), St Pancras (14 miles north-west), Shoreditch (13 miles north-west) and Walthamstow (15 miles north-west).
Around Derry Downs
In Derry Downs, that means homes and buildings near Harris Academy Orpington, The Priory School and The Royal Albert pub, among other places. For rail, the closest station is St Mary Cray station, about 0.8 miles north-west of the centre. Nearby you will also find London Borough of Bromley Museum (0.7 miles south-west) and Lullingstone Castle (3.9 miles south-east). The countryside around Derry Downs includes The Warren and Summer Hill.
What we do, step by step
Every roof is different, but as a rough guide the survey takes about one to two hours for most houses, and more on a big or complicated roof. If you have questions on the day, just ask. In a London area like Derry Downs, the main things to sort out are parking and access: tell us about permits, visitor bays or off-street space, which floor the property is on and how to get into the loft. We then look at everything that’s safely in view from the ground, windows, the loft and, where it is safe, the roof itself.
- You tell us the address, the type of roof and what’s worrying you.
- We agree a date, including weekends if that suits you.
- We look at the roof from every safe viewpoint outside.
- Inside, we check the roof space where there’s safe access.
- We email a report with photos and recommendations.
Before the survey
- Leave side gates unlocked
- Note where any stains or damp appear
- Let us know about parking near the property
How to book
Our price is from £150, including VAT. The exact figure depends on the roof and the package, and you can call 07833 053749 or drop us an email to find out.
Advice
Useful tips for Derry Downs property owners
These tips come from what we see on roofs every week:
- File the report with your home documents
- Take photos of any leaks as they happen
- Mention any damp patches when you book
- Check the roof from the ground after storms
Where it helps, we say which items are urgent. Some things need prompt attention, others can be planned for. It makes the next steps much clearer.
Have gutters and valleys cleared regularly, ideally after the leaves have fallen. Leave the clearing to a professional. Most overflow damage starts with a blocked gutter.
Places near Derry Downs
More services for Derry Downs
Questions from Derry Downs
How do I find out if my home in Derry Downs is listed?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you are planning to re-roof in a different material.
Can a landlord with a rental near St Mary Cray station book a roof survey?
Yes, landlords and letting agents book with us as well as owners. Just ring 07833 053749 or email us and tell us about the building, including who will give access on the day.
Will the report say how many years my roof has left?
Not as a figure. The report explains the condition of each part and the signs of wear, with recommendations ranked by urgency.
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 does a roof survey include?
Every part of the roof we can safely see: the slates or tiles, ridges, valleys, flashings, chimneys, gutters and roof space. Higher packages add moisture detection, structural checks, thermal imaging and a drone where it applies.
What if it rains on the day?
Some surveys depend on the weather more than others. Drones can’t fly safely in strong wind or a downpour, and thermal imaging works best after a sunny day, with a dry roof and little wind. We will rearrange with you if the weather is not right.
How much does a roof survey cost in Derry Downs?
Prices start from £150, including VAT. Our Basic Survey starts from £150, the Standard Survey from £250 and the Premium Survey from £400, all with VAT included.
Checking the roof from the ground
A DIY look is useful, but it isn’t a survey. From ground level, valleys, flashings and the backs of chimneys are often out of sight, and those are details a survey looks at closely.
Watch the gutters in a downpour, from a window or the ground. Water spilling over the edge can be a sign of a blockage or a gutter that has dropped.
Different roofs, different checks
Clay plain and peg tiles
Handmade and machine-made clay tiles are long-lasting. Slipped, cracked and missing tiles are recorded.
Flat roof coverings
Ponding, blistering, splits and cracked surfaces are the common warning signs. Upstands and outlets are checked too, since leaks often start there.
When you need someone else
It is useful to know what a survey won’t do before you book:
- Structural calculations (that is a structural engineer’s job)
- Confirmation of asbestos in soffits or cement sheets
- A promise that the roof will not leak in future
If you are not sure which survey you need, call 07833 053749 or drop us an email and we will give you a straight answer. The full list of what we check.
Roofs we survey in Derry Downs
- Lead flashings
- Ridges, hips and valleys
- Chimney stacks
- Natural slate
- The roof space
- Clay and concrete tiles
- Flat roofs