Buckinghamshire · London and the South East
Ashendon Flat Roof Survey
Flat roof surveys for homes and businesses in Ashendon. More than 5,000 surveys completed across London and South East England.
- Signs of deflection in the roof deck
- Splits and cracks in the covering
- Loose or cracked edge trims
About our flat roof survey in Ashendon
Every flat roof covering tends to fail in its own way. Built-up felt tends to blister and crack, asphalt crazes and splits, EPDM can lift at its laps, and GRP can crack at board joints and edge trims. Single-ply PVC and TPO roofs are checked at their welds, edges and fixings. Once you know the covering and its condition, planning the next step is far easier. We are often asked to look into blistering in felt or asphalt and splits and cracks in the covering, on upstands and outlets, felt flat roofs and EPDM rubber.
Flat roofs on exposed homes in small places like Ashendon take more wind and rain, so edges, upstands and laps take a beating. Felt roofs, which frequently last around 15–20 years, usually show it first. Rubber and GRP last longer, though trims and joints still need a look. On an exposed roof, the edges tend to go first.
Every survey ends with a written report, with photos, sent by email. It explains the condition of the flat roof, the defects we found and what we recommend.

- Where
- Ashendon (HP18)
- Wider area
- Buckinghamshire
- 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
- Page updated
- 27 October 2026
Your questions about flat roof surveys in Ashendon
Is Ashendon within the area you cover?
Yes, smaller places are covered as well as towns. Our area covers London and the South East. Let us know about access, parking and anything unusual about getting there as you book.
Do you carry out roof surveys in Ashendon?
Yes, Ashendon is within the area we cover. We cover the whole of London and South East England. Just phone 07833 053749 or email us and let us know about the property.
How do you inspect a flat roof?
Only where it’s safe to do so. If not, we use safe viewpoints and look inside, and the report says if any part couldn’t be seen. Fragile surfaces are never walked on.
Do you look for flat roof leaks?
The survey covers the covering and all the details where leaks normally begin, and photograph anything that could be letting water in. If the source is hidden, we may suggest a leak investigation or electronic leak detection.
Can you survey any kind of flat roof?
Felt, mastic asphalt, EPDM rubber, GRP fibreglass and single-ply membranes are all part of the work. The report names the covering and explains its condition.
How many surveys have you done?
Over 5,000 surveys so far, across 20+ years of surveying roofs, and 98% of customers are satisfied.
Do you need to get into the loft?
Yes, where the survey calls for it and there is safe access. We look for staining, damp, daylight and signs of movement.
What affects the cost of flat roof surveys
A few things affect what a survey costs:
- The height of the building and how the roof can be seen safely
- Basic, Standard or Premium
- Whether thermal imaging or a drone is needed
- Extra roofs, like extensions, dormers or garages
There are three survey packages: the Basic Survey from £150, the Standard Survey from £250 and the Premium Survey from £400, with VAT included. The price for your roof depends on its size, access and what you’d like to know.
What we need to know
You do not need to know any roofing terms. It’s enough to tell us:
- What made you get in touch
- Your timetable, such as an exchange date
- Anything about access we should know
- Any stains, drips or damp patches you’ve seen indoors
If you have photos of the roof, send them over. Pictures from the ground or a window are fine. To send them or to book, ring 07833 053749 or drop us an email.
Different roofs, different checks
GRP fibreglass
GRP roofs are laid as a resin and glass-fibre layer over boards. The survey checks for cracking at board joints, at the edge trims and where the roof meets walls.
Felt and built-up roofs
Built-up felt is one of the most common flat roof coverings on extensions, garages and dormers. We look for blistering, cracking, split laps and worn mineral surfacing.
DIY checks: what’s safe
A DIY look is useful, but it isn’t a survey. You will not see flashings, valleys or the backs of chimneys properly from ground level, and those are details a survey looks at closely.
Watch the gutters in a downpour, from a window or the ground. Overflowing water can point to a blockage or a sagging run.
What we’re asked to look at in Ashendon
The surface of a flat roof heats up and cools down far more than the rooms below. This constant movement works at laps, seams and board joints, which can open splits and cracks over the years. Coverings that have hardened with age tend to suffer most.
A survey makes sense if you’ve noticed:
- Ponding water that doesn’t drain away
- Outlets choked with leaves and silt
- Raised blisters across the surface
- Leaks around rooflights
Landlords with a home close to Haddenham & Thame Parkway station may find that flat roofs over rear additions and dormers in rented property are worth checking between tenancies.
Choosing a roof surveyor
- Their drone registration, if they fly one
- How long they’ve been surveying roofs
- Which viewpoints they use to see the roof
- Whether you get a written report with photos
Flat roofs in Ashendon
The wider area around Ashendon has a long history of building, with Waddesdon Manor about 2.3 miles north-east. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and the council can say whether a home is in a conservation area. A number of Buckinghamshire villages keep thatched roofs on their older buildings. Older houses in the South East frequently have slate or clay tile roofs, while many later estates have concrete tiles. Next to the main roofs there is usually a flat roof somewhere, whether on an extension, a garage or a commercial unit.
Take an older house close to Parish Church of St Mary the Virgin: flat-roofed rear additions and dormers added over the years are worth checking.
Ashendon is about 5 miles north of Thame, in Buckinghamshire. We cover Ashendon and the rest of Buckinghamshire. Ashendon is one of the towns and villages in Buckinghamshire where we work. There is also a page for Oxford.
Here we cover the HP18 postcode area for flat roof surveys. We offer flat roof surveys to properties on Main Street, Lower End and The Close and the roads around them. If you’re just outside Ashendon, we cover Nether Winchendon (2 miles south-east), Westcott (2 miles north-east), Upper Winchendon (2 miles east), Waddesdon (3 miles north-east) and Wormstone (3 miles north-east). Within a short drive, we also cover Aylesbury (7 miles east), Buckingham (12 miles north), Elmhurst (7 miles east), Southcourt (7 miles east), Princes Risborough (9 miles south-east) and Haydon Hill (6 miles east).
Landmarks near Ashendon
Ashendon’s nearest station is Haddenham & Thame Parkway station, roughly 3.9 miles south-east. A little further out are Dinton Castle (4.1 miles south-east) and St John's Hospital (4.6 miles east). The countryside around Ashendon includes Snakemoor.
Landlords, agents and block managers in Ashendon
Where a roof is shared: we need access agreed with whoever owns or manages the building. Tell us about it when you book and we’ll plan the survey around it.
Letting agents often book on a landlord’s behalf, and the report can go to both. Access is agreed with the tenant ahead of time.
Towns and villages near Ashendon
More services for Ashendon
What we do, step by step
When we arrive, we begin with a quick chat about the roof and anything that is worrying you. After that, we check everything we can see safely. The survey normally takes roughly 1–2 hours on an ordinary house, and about three to four hours for a commercial roof. In a small place like Ashendon, access is normally the main thing to plan. Let us know about outbuildings, past repairs and any leaks you’ve noticed. Visits can be on weekdays, Saturdays or Sundays.
- First you give us the address, what the roof covers and any leaks you’ve noticed.
- We view the roof from the ground, from windows and from the roof where it is safe to do so.
- Every part of the roof we can see is looked at: covering, falls, upstands, outlets, trims and rooflights.
- Where there’s safe access, we look at the ceilings and spaces below for signs of water.
- We send a written report with photos, the defects we found and what we recommend.
Before the survey
- If the roof is shared, arrange access with whoever manages the building
- Leave a clear route to the loft
- Keep pets out of the way during the survey
How to book
Getting a price is simple: just ring 07833 053749 or send us an email and give us a few details about the property and we will point you to the right survey. We confirm the price before anything is booked.