Surrey · London and the South East
Sunbury-on-Thames Flat Roof Survey
Surveys of flat roofs on homes, extensions and commercial buildings across Sunbury-on-Thames, using drones and thermal imaging where applicable. Get in touch for a price.
- Dips that suggest the deck is deflecting
- Gaps at upstands and abutments
- Splits and cracks in the covering
Why act early in Sunbury-on-Thames
Flat roofs cannot usually be seen from the street, so they’re frequently overlooked. Many owners only find out a roof is worn out when water comes through. Regular surveys mean it won’t come as a surprise. On homes in Sunbury-on-Thames, the joint between an extension and the house is where a slow leak tends to start. A few wet winters later, it can mean new plaster and decorating as well as roof work.
Prices quoted always include VAT, and the written report is part of the package. Our price is from £150, including VAT. Where your roof sits in the range depends on its size, height and access.
What you get with us
- An independent view of the roof
- Over 20 years’ experience
- Drone flown under a CAA Flyer ID and Operator ID
- Over 5,000 surveys carried out
Read what a roof survey costs or two real surveys.
Flat roof survey in Sunbury-on-Thames
A flat roof survey looks at the covering, the edges, the outlets and the details where the roof meets walls and rooflights. Felt, asphalt, EPDM, GRP and single-ply PVC or TPO roofs are all part of the work. It suits a small roof over an extension or garage as well as a large one over flats, offices or units. You get a photo-illustrated written report and our recommendations. If you are worried about pools of water lying on the roof and upstands pulling away from walls, a survey will tell you what’s going on, on mastic asphalt, GRP fibreglass and EPDM rubber alike.
In a town like Sunbury-on-Thames, flat roofs are common on rear extensions, garages, porches and dormers. Older ones are often felt, which frequently lasts around 15–20 years, while newer ones may be EPDM rubber or GRP fibreglass. The usual warning signs are standing water, splits and edges coming away. Water that sits for days after rain is often the first sign a flat roof needs attention.
The report works through the roof section by section, from the main slopes down to the gutters and outlets, each with a short note and a photo. You will see the good as well as the bad.
- Location
- Sunbury-on-Thames (TW16)
- Region
- Surrey
- Price
- From £150 inc. VAT
- Report
- A written report with photos, by email
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
Also near Sunbury-on-Thames
Other services in Sunbury-on-Thames
Local flat roofs in Sunbury-on-Thames
Handmade clay tiles and tile-hung walls are typical of Surrey’s older houses. Some old buildings in Surrey and Sussex have Horsham stone slab roofs. Next to the main roofs there’s normally a flat roof somewhere, whether on an extension, a garage or a commercial unit. Historic houses such as Hampton Court Palace, about 3.5 miles east, show how far back building in the area around Sunbury-on-Thames goes. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and any change of roofing material on a listed home needs checking with the council first.
If you let a flat or house near Sunbury station, a flat roof over a rented flat is easy to forget until the tenant reports a leak. For site and facilities teams at buildings such as St Ignatius RC Primary School, a large flat roof with a good many outlets and rooflights has many places where a membrane can fail.
Sunbury-on-Thames is about 7 miles south of Hayes, in Surrey. We survey roofs in Sunbury-on-Thames and the rest of Surrey, as part of our work across London and the South East. Sunbury-on-Thames is one of the towns and villages in Surrey we cover. Guildford is in our area too.
All of TW16 is within our area for flat roof surveys, from the main roads to the quietest streets. Whether your property is on Station Road, The Ridings and Ravenscourt or anywhere close by, we can survey it. Sunbury-on-Thames sits on or near the A244 and A308. Neighbouring places we cover for flat roof surveys include Upper Halliford (1 mile south-west), Charlton (1 mile west), Ashford Common (1 mile north-west), Hounslow (1 mile north) and Littleton Common (1 mile west). Within a short drive, we also cover Guildford (13 miles south-west), Woking (10 miles south-west), Camberley (15 miles south-west), Epsom (8 miles south-east), Ewell (8 miles south-east) and Egham (6 miles west).
Around Sunbury-on-Thames
Locally, jobs take us to homes and businesses close to Sunbury Manor School, The Three Fishes Public House and Sunbury Park and the streets around them. There is a railway station in Sunbury-on-Thames itself: Sunbury station. Well-known places in the area include Kempton Steam Museum (1 mile north-east) and No. 2 New Zealand General Hospital (2 miles south). For a walk, there’s St Ann's Hill and Kempton Park Reservoirs.
What we are asked to look at in Sunbury-on-Thames
Flat roofs take the full force of the weather on a surface that drains slowly. In time, the covering dries out, cracks and loosens at its edges and laps. Most people book a survey after a leak, before buying, or when they think the roof is getting old.
It’s worth booking a survey if you’ve seen:
- Standing water left after rain
- Dips that suggest the deck is deflecting
- Upstands pulling away from walls
- Raised blisters across the surface
Take an older house close to St Saviour: flat-roofed rear additions and dormers added over the years are worth checking.
Choosing a roof surveyor
- How long the report takes to arrive
- Their insurance cover
- Which parts of the roof they’ll actually see
- Whether the price includes VAT
Sunbury-on-Thames: your questions answered
Does a conservation area affect roof work in Sunbury-on-Thames?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. It matters most if you are planning to re-roof in a different material.
Is Sunbury-on-Thames in the area you cover?
Yes, Sunbury-on-Thames is within the area we cover. We survey roofs across London and the South East. You can call 07833 053749 or use the contact form with the address and some details, and we’ll talk through which survey suits.
How soon will I get the report?
Each package has its own report time. Basic is within 48 hours, Standard is 24–48 hours and Premium is the same day. If you have a deadline, like an exchange date, tell us as you book.
Will you check the loft?
If it’s needed and safe to reach, yes. We look for staining, damp, daylight and signs of movement, as far as the space allows.
How many years has my flat roof got left?
We don’t give a fixed number of years, because it depends on upkeep, weather and how the roof was laid. We describe the condition and say which work is urgent and which can wait.
How long have you been surveying roofs?
Over 5,000 surveys so far, across 20+ years of surveying roofs, with 98% customer satisfaction.
Are you structural engineers?
No. Our survey isn’t a structural engineer’s report. We’ll recommend an engineer if we see signs that call for one.
What a flat roof survey does not cover
No survey can tell you everything, and it is better to know them up front. Keep these in mind:
- Whether old sheeting or boards contain asbestos
- A fixed date for when the roof will need replacing
- Hidden layers beneath the covering
If you’re not sure which survey you need, call 07833 053749 or use the contact form and we will give you a straight answer before booking. The full list of what we check.
Roof types and parts we check
- GRP fibreglass
- EPDM rubber
- Mastic asphalt
- Single-ply membranes
- Upstands and outlets
- Felt flat roofs
What happens on the day
The visit has one job: to look at the flat roof as closely as is safe and record what we find. Everything we note and photograph goes into the written report. The visit usually takes about one to two hours for most houses, while a commercial roof takes nearer three to four hours. Parking in a town like Sunbury-on-Thames is typically simple, but tell us if there’s a driveway or any restrictions. The inspection covers everything that’s safely in view from outside, from windows and from the loft space.
- You tell us about the roof, its covering if you know it, and any leaks.
- We check the roof from wherever it can safely be seen.
- Every part of the roof we can see is looked at: covering, falls, upstands, outlets, trims and rooflights.
- We check the rooms or spaces under the roof for staining where we can reach them.
- We send a written report with photos, the defects we found and what we recommend.
Before we arrive
- Let us know about any leaks, stains or damp patches you know of
- Keep pets out of the way during the survey
- Find any records of previous roof work
Arrange a survey
If you’re buying, it is useful to book soon after your offer is accepted, so you have the findings in time to act on them before you exchange. For any other survey, just phone 07833 053749 or send us an email when you’re ready.
Advice
Can I check my roof myself?
It is useful to keep a record: dates of leaks, photos from ground level and any work done on the roof. Share it with us as you book, as it helps us focus the survey.
A lot can be seen from ground level. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Please do not climb up for a closer look.
Prices for flat roof surveys in Sunbury-on-Thames
We confirm the exact price before booking. These are the things that affect it:
- Features like valleys, chimneys, dormers and parapets
- How tall the building is and how easy the roof is to see
- House, block, shop or office
- The number of roofs, including extensions and garages
The Premium Survey includes thermal imaging and drone inspection where applicable, from £400 with VAT included. We will tell you which package suits the questions you have.
Booking your survey
The more you let us know, the easier it is to price the survey. When you contact us, it’s useful to mention:
- The style of property, from a terrace to a block
- How the loft is reached, if there is one
- Pictures of the roof from a safe spot, if you have them
- Where water is showing inside, if it is
Photos help, if you have them. Pictures from the ground or a window are fine; never climb up to get a better view. To send them or to book, call 07833 053749 or email us.