Greater London · London and the South East
Thermal imaging roof survey in Penge, Greater London
An experienced roof surveyor for thermal roof surveys in Penge. More than 20 years and over 5,000 surveys across London and South East England.
- Leaks far from where the stain appears
- Thin or uneven insulation in the roof
- Areas of a flat roof that may hold water
When you need someone else
Without opening up the roof, some things stay hidden, so a survey has limits:
- Insulation values or heat loss calculations
- The condition of timbers we can’t see
- Whether the deck or roof structure is strong enough
If in doubt, call 07833 053749 or drop us an email and we will recommend the right survey before booking. What a survey covers and does not.
Roofs we survey in Penge
- Loft conversions
- Pitched roof slopes
- Flat roofs
- Commercial roofs
- Ceilings below the roof
- Insulated roof spaces
Thermal roof survey in Penge: what you get
Our Premium Survey, from £400, brings together a full roof inspection and thermal imaging. You also get a drone inspection where applicable, structural analysis and a report on the same day. There is an in-person consultation as well, plus a follow-up 12 months later. To book, just phone 07833 053749 or email us with the address and what you’ve noticed. Larger commercial roofs are quoted for their size. If you’re worried about stains that keep coming back and wet areas near outlets and upstands, we can find out what’s behind it, on loft conversions, commercial roofs and insulated roof spaces alike.
In London’s terraces and conversions, roofs are packed close together, so privacy and neighbours matter as much as the view. Images are taken to show the roof we are surveying, with care for neighbours’ privacy, in Penge as anywhere. Tell us about the building and access when booking. Steep slopes, tall chimneys and rear additions are where the extra view helps most.
The report records the roof as we found it on the day. That makes it useful now and a handy reference later.
- Location
- Penge (SE20, SE19, SE26)
- Region
- Greater London
- Cost
- From £400 inc. VAT
- Your report
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Call
- 07833 053749
- Updated
- 27 October 2026
How it works
There isn’t much for you to do on the day. Show us any stains, drips or problem areas you know about, and we’ll get on with the inspection. The survey itself takes about one to two hours for most homes, plus time to check any thermal findings with moisture readings. From the street, a London terrace usually shows only its front slope or parapet, so in Penge we work round the house, using the street, the windows, the loft and any safe vantage point behind it. Shared stairs or a basement flat? Let us know who holds the keys.
- First we go over the roof, the problem you’ve noticed and the conditions forecast for the visit.
- We look at the roof from the ground, from windows and from the roof itself where it’s safe.
- A thermal camera records how the surface temperature varies across the roof.
- We check the patterns that stand out with moisture readings where there is safe access.
- You get a report with thermal images, photos and our recommendations.
Before we arrive
- Move anything stored under the loft hatch
- Check pets are kept safely away
- Dig out any old roof reports or invoices
Getting a price
A quick phone call is usually the easiest start: phone 07833 053749 or drop us an email. You’ll have a price before anything is arranged.
Advice
Can I check my roof myself?
During heavy rain, look at the gutters from ground level or a window. Water spilling over the edge can point to a blockage or a sagging run.
A lot can be seen from the ground. With binoculars, look for slipped or missing slates and tiles, gaps along the ridge and leaning chimneys. Please don’t climb up for a closer look.
Leave it or get it looked at?
Before replacing a large flat roof, it helps to know how much of it is actually wet. Thermal imaging, checked with moisture readings, gives a clearer picture before you commit. 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.
All our prices include VAT. Prices start from £400, including VAT. You will know the price for the job before booking.
Why us?
- Packages from £150, including VAT
- Drones and thermal imaging where applicable
- Plain-English reports with photos
- Customer satisfaction of 98%
Read what a roof survey costs and what we found on two real jobs.
Different roofs, different checks
Single-ply and EPDM roofs
Because these membranes are thin, patterns from below frequently show. Reflections from shiny surfaces can affect readings, which we allow for.
Parapets, valleys and junctions
Problems where roof slopes and walls meet are often hidden. A careful visual inspection goes alongside the images.
Airspace, weather and Penge roofs
Where the drone is part of the survey, the flight is checked against the Drone Safety Map first. Inner London’s Victorian and Edwardian terraces frequently have Welsh slate roofs. A butterfly roof with a central valley gutter, tucked behind a parapet wall, is common on these houses. In a house like that, shared stacks, party-wall upstands and lead flashings all need looking at as far as they can be seen. Steep or complicated roofs are often hard to see from ground level, which is where photos from the air and thermal images help.
If you look after a building such as Harris Primary Academy Crystal Palace, a view from above covers a wide roof far faster than walking it. Shop and office owners around Whitgift Centre may find that large commercial roofs are often easiest to see from the air or with a thermal camera.
Penge is about 1 mile west of Beckenham, in Greater London. We carry out thermal roof surveys in Penge for houses, flats, blocks and commercial buildings, with a written report and photographs every time. Across Greater London, we cover Penge and the places around it. London is in our area too.
We survey roofs across SE20, SE19 and SE26 for thermal roof surveys and the streets around it. Streets in the area include High Street, Anerley Station Road and Station Road, all of which we cover. With the A234 close by, Penge is easy for us to reach. Other places close to Penge include 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).
Landmarks near Penge
Around Penge, our work takes us to homes and buildings near Crystal Palace School, Crooked Billet pub and Crystal Palace Dinosaurs. There’s a railway station in Penge itself: Penge West station. A little further out are St Christopher's Hospice (0.5 miles north) and Crystal Palace Museum (0.8 miles north-west). Green spaces nearby include Dulwich Upper Wood and Knight's Hill.
FAQs for Penge
Is my home in Penge listed or in a conservation area?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
Are there drone restrictions around Penge?
It depends on the exact address and the weather on the day. Across London there are restriction zones around Heathrow, London City and London Heliport, plus restricted areas over Hyde Park, the City of London and the Isle of Dogs. Each address is checked against all of them before the drone goes up. Every flight is checked against the Drone Safety Map first. The flight also waits for calm, dry weather.
Can you use a thermal camera on a sloping roof?
It can show heat loss and some damp, but it has more limits there. We explain what the images can and cannot tell you, and we check them with a visual inspection and moisture readings.
Is it the same as a RICS Level 2 or Level 3 survey?
No. Our survey looks at the roof, not the whole building. If you need a full building survey, you’ll need a RICS survey as well.
Is this an asbestos survey?
No. We can flag materials that might contain asbestos, but only a specialist asbestos surveyor can confirm it. It may be present in buildings built or refurbished before 2000.
Do I have to be there for the survey?
If the survey includes the loft or the inside of the building, someone needs to let us in. Access is agreed with you when you book.
Can you survey at the weekend?
We survey on any day from Monday to Sunday, during the day, which suits people who work during the week. Let us know your preferred days when you book.
What we are asked to look at in Penge
Once a leak has been fixed, people often ask whether the roof is still wet. A thermal survey with moisture readings can show whether wet areas remain when the conditions on the day are suitable.
It is worth booking a survey if you’ve seen:
- Damp where roofs meet walls and chimneys
- Water that travels before it shows
- Damp around roof outlets and upstands
- Damp that repairs haven’t cured
Parking in Penge, as in most of London, takes a little planning: let us know about parking bays, permits or a driveway when booking.
Questions to ask before booking
- Whether VAT is in the quoted price
- Whether the inside of the roof is included
- Whether you can ask questions once you have the report
- What the report includes, and whether it has photos