Greater London · London and the South East
Penge Flat Roof Survey
We take a careful look at the flat roof at your property in Penge, and put it all in a written report with photos.
- Outlets that hold water back
- Splits and cracks in the covering
- Failed seals around rooflight kerbs
Flat roof surveys for homes and businesses in Penge
Offices, shops, industrial units and blocks of flats frequently sit under large flat roofs. On a roof like this, a survey shows where the covering is wearing, where water is ponding and which outlets need attention. The photographed record helps you plan and budget for work. Commercial roofs are quoted for their size and access, so it helps if you call 07833 053749 or email us with the address and a rough idea of the roof area. We are often asked to look into leaks around rooflights and blocked or damaged outlets, on upstands and outlets, mastic asphalt and GRP fibreglass.
Across London, flat roofs are everywhere, from back additions and dormers to roof terraces, blocks of flats and offices. They’re covered in felt, asphalt, EPDM rubber, GRP fibreglass or single-ply membranes, and each fails in its own way. In Penge, as anywhere in London, the right approach depends on what the roof is made of. Older flat roofs are often felt or asphalt, newer ones rubber or GRP.
The report works through the roof section by section, from the coverings down to the gutters, each with a short note and a photo. You will see the good as well as the bad.
- Location
- Penge (SE20, SE19, SE26)
- Wider area
- Greater London
- Cost
- From £150 inc. VAT
- Reports
- Emailed report with photos and recommendations
- When we survey
- Monday to Sunday, daytime
- Insured
- Professional indemnity and public liability
- Call
- 07833 053749
- Updated
- 27 October 2026
Questions from Penge
Is my home in Penge listed or in a conservation area?
We can’t confirm that for you, but Historic England’s list and your council can. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
Do you cover Penge?
Yes. Our area covers London and the South East, and Penge is part of that. You can call 07833 053749 or email us with the address and a few details, and we’ll talk through which survey suits.
Which flat roof coverings do you cover?
We cover the main flat roof coverings: felt, asphalt, EPDM, GRP and single-ply. We record what the covering is and how it’s holding up.
Do I need to be at home?
If the survey includes the loft or the inside of the building, someone needs to let us in. We will talk about access as you book.
Can you find where water is getting through my flat roof?
We check the covering and every detail where leaks commonly start, and photograph anything that could be letting water in. Where the source is not obvious, a roof leak investigation or electronic leak detection may be the next step.
How do I arrange a flat roof survey in Penge?
Simply call 07833 053749 or email us. We will ask a few questions, confirm the price and agree a date, weekday or weekend.
Can you survey in bad weather?
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 with a dry roof, little wind and a sunny day beforehand. If the conditions are not right, we’ll talk to you about another date.
What we look for on each type of roof
Single-ply membranes
Single-ply relies on its welded laps staying sound. We check seams, corners and the joints around outlets and upstands.
EPDM rubber
EPDM often lasts 30 to 50 years, but it relies on its seams, trims and upstands being well finished. We look closely at each of those details.
How the survey works
We do not take risks to get a closer look. We inspect whatever is safely visible, and if part of the roof cannot be seen, the report says so. Most visits take about one to two hours for most houses, or half a day or so for a commercial building. In a London conversion, the way into the roof space is frequently from a communal landing or the top flat. Where that is the case, access needs agreeing with whoever controls that landing. Everything else is planned around the building, not the postcode.
- You send us the address and, for commercial roofs, an idea of the roof’s size.
- Inside, we look for signs of water under the roof where we can reach.
- The roof is inspected from every safe viewpoint, without walking on fragile surfaces.
- We record every defect with a photo and its likely cause.
- You get a report setting out the condition and our recommendations, in order of urgency.
Getting ready for the survey
- Show us where any leaks or stains appear
- Find any records of previous roof work
- Have keys ready for side gates, garages or roof access doors
Arrange a survey
Prices start from £150, including VAT. The exact figure depends on the roof and the package, and you can ring 07833 053749 or email us to find out.
Related advice
Flat and commercial roofs around Penge
Many homes in inner London are Victorian and Edwardian terraces, often with Welsh slate roofs. From the street you may see only a parapet, with a butterfly roof and a valley gutter behind it draining to the back. If your home in Penge is one of them, lead flashings, party-wall upstands and shared chimney stacks are part of the picture too. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. The wider area around Penge has a long history of building, with Kingswood House about 1.4 miles north-west. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and a listed home or one in a conservation area may need consent for changes of material.
For landlords with property near Penge West station, the flat roof over a let home is worth a look before it becomes a tenant complaint. Penge is in London, so parking needs planning: let us know about permits, visitor bays or off-street space when booking, as a space near the door can’t be promised. For an older house near a landmark like Church of St John the Evangelist, any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof.
Penge is about 1 mile west of Beckenham, in Greater London. Roofs in Penge get the same thorough look as anywhere else in Greater London. We cover towns and villages across Greater London, large and small. Our London page covers surveys nearby.
We cover every part of the SE20, SE19 and SE26 postcode area for flat roof surveys and the streets around it. You’ll find streets such as High Street, Anerley Station Road and Station Road, all of which we cover. Penge is on the A234, so it’s easy for us to get to. 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). Larger places within reach include 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).
Near you in Penge
Typical jobs here are in homes near Crystal Palace School, Crooked Billet pub and Crystal Palace Dinosaurs. There’s a railway station in Penge itself: 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). The countryside around Penge includes Dulwich Upper Wood and Knight's Hill.
Why act early in Penge
Caught early, a split or open seam in a flat roof is frequently a small repair. Left alone, water can soak the insulation and the deck, and the job grows. Surveying it now tells you where you stand. Work on a London roof is rarely simple to arrange, with parking, neighbours and access all to think about. That’s a good reason to find problems early, while there is time to plan, rather than in a rush after a leak.
Flat roof survey starts from £150, including VAT. What you pay depends on the size and height of the roof, how it can be seen safely and the package you choose.
Why book with us
- Professional indemnity and public liability insurance
- CAA-registered drone operator (Flyer ID and Operator ID)
- Clear package prices, with VAT included
- An independent look at the roof
See our cost guide or two real surveys.
Before and after the survey
These tips come from what we see on roofs every week, before and after a survey:
- Ask whoever fits equipment on the roof to make good the covering
- Note the date and type of any roof work
- Check from a window for ponding after heavy rain
- Watch the ceilings below the flat roof for stains
You can use the report to ask roofers to quote for the same work. With each roofer working from the same list, comparing quotes is simpler. You stay in control of who does the work and when.
After heavy rain, look at the roof from an upstairs window if you can. Water still lying a day or two later is worth getting looked at.
What else we do in Penge
What you can safely check yourself
A DIY look is useful, but it isn’t a survey. From the ground, valleys, flashings and the backs of chimneys are often out of sight.
Look up at the roof after a storm, from ground level: pieces of tile or slate on the ground, a gap in the ridge or a lifted flashing are all worth noting. Don’t go up yourself.
What affects the cost of flat roof surveys
To price your survey, we look at:
- If the survey needs thermal imaging or a drone
- Height and safe access
- Whether it’s a home or a commercial building
- The roof’s overall size
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.
Helping us price your survey
What helps most when you contact us:
- Pictures of the roof from a safe spot, if you have them
- Whether there is a loft hatch, a shared roof or tricky access
- Where any leaks, stains or damp patches show inside
- When you need the report by
Once you know what you need, phone 07833 053749 or drop us an email. From there it’s a case of choosing a package, agreeing the price and fixing a day.