Greater London · London and the South East
Walworth Thermal Roof Survey
Get a clear view of the roof at a property in Walworth from an independent roof surveyor. We visit on weekdays and at weekends.
- Damp around chimneys and parapets
- Patches of heat loss across the roof
- Thin or uneven insulation in the roof
Thermal roof survey in Walworth: what you get
A thermal imaging roof survey uses a thermal camera to show differences in surface temperature across a roof. The patterns can suggest wet insulation, gaps in insulation or places where heat is getting out. It’s important to know that the camera shows temperature, not water, so findings are checked with moisture readings. It comes as part of our Premium Survey, from £400. Conditions on the day affect the results, and the report explains how. We survey commercial roofs, loft conversions and pitched roof slopes, and the problems we’re asked to look at most are heat escaping through the roof and thin or uneven insulation in the roof.
In London’s terraces and conversions, roofs are packed close together, so privacy and neighbours matter as much as the view. We take care to focus on the roof we have been asked to look at. Mention access, height and anything unusual about the building when you book. Steep slopes, tall chimneys and rear additions are where the extra view helps most.
You receive the findings by email, ready to forward to whoever needs them. Basic reports come within 48 hours, Standard within 24–48 hours and Premium on the day.
- Location
- Walworth (SE1P, SE17, SE1)
- Region
- Greater London
- Price
- From £400 inc. VAT
- Reports
- Emailed report with photos and recommendations
- Survey days
- Weekdays, Saturdays and Sundays
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
Tips that help
You don’t need to be a roofer to help. Here’s what helps most:
- Take photos of stains as they appear, so we can compare
- Leave the roof to people with safe access
- Use the report as a baseline for later checks
- Move stored items away from the loft hatch
Premium Surveys include an in-person consultation, so you can go through the images with us. There is a 12-month follow-up too.
Keep outlets and gutters clear so water drains off the roof quickly. The less water sits, the less can find its way beneath.
Towns and villages near Walworth
More services for Walworth
How the survey changes by roof type
Pitched slate and tile roofs
Even on pitched roofs, the camera can point to heat loss and some damp. We explain what can and can’t be read from them.
Parapets, valleys and junctions
Water often gets in where roofs meet walls, parapets or valley gutters. Thermal imaging can help show damp patterns around them.
Walworth: your questions answered
Will parking be an issue for a roof survey in Walworth?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
Is drone flying allowed in Walworth?
It depends on the exact address and the weather on the day. The flight restriction zone around London Heliport in Battersea comes within about 2 miles of Walworth. We check the exact boundary for the address before flying, and if the roof falls inside it, we ask for permission first. London’s airspace includes flight restriction zones around Heathrow, London City Airport and London Heliport, and restricted areas over Hyde Park, the City of London and the Isle of Dogs. Every London address is checked against them before a flight. The flight also waits for calm, dry weather.
How long have you been surveying roofs?
We’ve been surveying roofs for over 20 years and have completed over 5,000 surveys across London and South East England.
Will the camera show exactly where the water is?
Not directly. It shows temperature, and wet materials frequently behave differently from dry ones. We confirm what it suggests with moisture readings.
How do I arrange a thermal roof survey in Walworth?
The quickest way is to ring 07833 053749 or send us an email. Give us the address and some details about the roof, and we will take it from there. We survey on any day of the week.
Does thermal imaging work on slate and tile roofs?
It can help, but the results are frequently less clear than on a flat roof. The air space under slates and tiles can hide patterns, so we combine it with an inspection from the loft where there is safe access.
Can you give me structural calculations?
No. Visible signs like deflection or sagging are recorded, but we do not provide calculations or an engineer’s opinion. The report will say if you need an engineer.
Do you need a thermal roof survey in Walworth?
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, given suitable conditions on the day.
It’s worth booking a survey if you’ve seen:
- Gaps in loft insulation
- Leaks far from where the stain appears
- Wet areas near outlets and upstands
- Possible trapped moisture under a flat roof covering
For a London address like Walworth, it’s useful to know about controlled parking before the day.
Choosing a roof surveyor
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- How long the report takes to arrive
- How long they’ve been surveying roofs
- What exactly goes into their report
Thermal roof surveys in Walworth: local notes
Close to the centre of London, a great many houses are Victorian or Edwardian terraces, many of them roofed in Welsh slate. Many have butterfly roofs draining to a central valley gutter, with parapet walls and gutters hidden behind them. In a house like that, shared stacks, party-wall upstands and lead flashings all need looking at as far as they can be seen. Older coverings on steep or tall roofs are hard to judge from below, so close-up aerial photos and thermal images help. The wider area around Walworth has a long history of building, with Mansion House about 1.6 miles north. Older homes in the wider area often have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and a listed home or one in a conservation area may need consent for changes of material.
A roof leak in a hotel or guest house around Walworth means lost rooms as well as repairs. If you live in an older home near Lady Margaret Church, older roofs can be steep and hard to see from the street, which is where photos from the air and thermal images help.
Walworth is about 1 mile south of London, in Greater London. If you are in Walworth, booking works exactly as it does anywhere else: a call or an email, a price, then a date. We cover towns and villages across Greater London, large and small.
We work across SE1P, SE17 and SE1 for thermal roof surveys. You will find streets such as Mina Road, Ash Avenue and Angel Lane, all of which we cover. We also cover the places around Walworth: London (1 mile north), Bermondsey (1 mile north-east), Camberwell (1 mile south), South Bermondsey (1 mile east) and Denmark Hill (2 miles south). Larger places within reach include City of Westminster (3 miles north-west), Marylebone (3 miles north-west), Kensington (5 miles west), St Pancras (3 miles north-west), Shoreditch (3 miles north) and Walthamstow (7 miles north-east).
Around Walworth
Around Walworth, our work takes us to homes and buildings near University Academy of Engineering South Bank, Nursery Row Park and Lord Nelson pub. Other local landmarks include Lambeth Palace Library (1.3 miles north-west) and St Saviour's and St Olave's Church of England School (under half a mile north). The nearest railway station is Elephant & Castle station, about 0.5 miles north-west. Nearby you’ll also find Gabriel's Wharf (1.5 miles north-west) and The Walworth Clinic (under half a mile west). Open spaces near Walworth include Bellenden Road Nature Garden and St. James's Park Lake.
Should I look at the roof myself first?
It helps to keep a record: dates of leaks, photos from ground level and any work done on the roof. Send it with your enquiry and it will help the survey.
The one thing to avoid is getting up close. Slates, tiles, flat roofs and rooflights can give way, and a fall can be serious. That’s where a survey comes in, using safe viewpoints and a drone where applicable.
What happens on the day
We’ll ask a few questions first, such as when any problem began and what work has been done before. The inspection then takes between one and two hours at a house, including the thermal images, and around 3–4 hours for a commercial roof. In a London conversion, the way into the roof space is often 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.
- We talk through the roof, any damp or leaks, and the weather expected on the day.
- We look at the roof from ground level, from windows and from the roof itself where it is safe.
- We take thermal images of the roof to pick up temperature patterns.
- We check the patterns that stand out with moisture readings where there’s safe access.
- You get a report with thermal images, photos and our recommendations.
Before we arrive
- Tell us where we can park nearby
- Clear the way to the loft hatch
- Jot down any questions you want answered
Book a survey
We confirm the price for your survey before booking, so you know the cost up front. Our price is from £400, including VAT. To book, ring 07833 053749 or email us.
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Rented homes, blocks and businesses
Letting agents frequently book on a landlord’s behalf. We agree a time with the tenant beforehand.
Letting agents can arrange access with tenants, at a time agreed ahead of time. Surveys run seven days a week, which helps when tenants work during the week.