Reading · London and the South East
Flat roof survey in Sonning, Reading
Flat roof surveys across Sonning, backed by more than 20 years’ experience. Every survey ends with a written report and photographs.
- Dips that suggest the deck is deflecting
- Blisters and bubbles in the covering
- Splits, cracks and crazing
How a flat roof survey works in Sonning
A flat roof leak frequently travels before it shows on the ceiling. It can run along the deck from a split, an open lap or a failed upstand some distance away. That is why we check every detail across the roof, not only the area above the stain, and photograph anything that could let water in. A roofer can then start from a clear picture of the problem. If you’ve noticed a sagging deck under the covering and cracked or split membrane, a survey will tell you what’s going on, on EPDM rubber, mastic asphalt and GRP fibreglass alike.
Older buildings in small places like Sonning may be listed or in a conservation area, which can shape what a new flat roof may look like. Check with the council before planning any change of material. Knowing the roof’s condition is the starting point. Listed building consent is needed for changes that affect a listed building’s special interest.
The report is yours to share with whoever needs it: your solicitor, the seller, your insurer, a roofer or the building’s managing agent, whichever applies.
- Where
- Sonning (RG4)
- Region
- Reading
- Cost
- From £150 inc. VAT
- Your report
- Emailed report with photos and recommendations
- Survey days
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Updated
- 27 October 2026
Sonning: your questions answered
Is Sonning in the area you cover?
We do. Every survey there gets the same written report with photographs.
Is my home in Sonning listed or in a conservation area?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. It matters most if you’re planning to re-roof in a different material.
Can you survey a flat roof on an office or unit?
Yes. We survey flat roofs on commercial buildings as well as homes. A commercial roof usually takes about 3 to 4 hours on site, longer if it’s large or complex, and larger roofs are quoted for their size.
Can you give me structural calculations?
No. Visible signs such as deflection or sagging are recorded, but calculations and an engineer’s opinion are outside what we do. The report will say if you need an engineer.
How many years has my flat roof got left?
A precise figure is not something we give, 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.
Will you fly a drone over my roof?
Where it helps and it’s safe, yes. Flights depend on the weather on the day and airspace rules. We hold a CAA Flyer ID and Operator ID.
Will you walk on the flat roof?
Only where it’s safe to do so. Otherwise we use windows, vantage points and the spaces below, and the report says if any part couldn’t be seen. We don’t walk on fragile rooflights or sheeting.
Roof by roof
Single-ply membranes
Single-ply PVC and TPO membranes are common on commercial roofs and newer buildings. We check the welded laps, the edges, the fixings and any punctures.
GRP fibreglass
A well-laid GRP roof often lasts up to about 30 years. Cracking where boards meet or where the deck moves is a common early sign of trouble.
What we can’t see
We only report what can safely be seen on the day, so some things are outside what a survey can do:
- A fixed date for when the roof will need replacing
- What’s under the membrane without opening it up
- Fragile surfaces, which we don’t walk on
If you are not sure which survey you need, ring 07833 053749 or email us and we’ll give you a straight answer before booking. The full list of what we check.
What we check
- Single-ply membranes
- GRP fibreglass
- Mastic asphalt
- Felt flat roofs
- Upstands and outlets
- EPDM rubber
Tips that help
There’s plenty you can do without going near the roof. Here’s what helps most:
- Keep people off the roof unless they need to be there
- Ask whoever fits equipment on the roof to make good the covering
- Look for standing water a day after rain
- Treat rooflights and old sheeting as fragile
After the visit, we write up the report with photos of what we found. It covers the type of covering, its condition and each defect, with our recommendations. Basic reports arrive within 48 hours, Standard reports in 24 to 48 hours and Premium reports the same day.
Have the roof surveyed every few years, and after any work that goes through it. That catches changes early and builds up a record of the roof.
Common roof problems in Sonning
Flat roofs swing between hot and cold more than most parts of a building. 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.
It’s worth booking a survey if you’ve seen:
- Leaks around rooflights
- Upstands pulling away from walls
- Raised blisters across the surface
- Dips that suggest the deck is deflecting
If you look after a building like Sonning Church of England Primary School, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
What to check before booking
- Which limits apply to the survey
- Whether the roof space is looked at, where there is one
- Which viewpoints they use to see the roof
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
What a flat roof survey looks like in Sonning
In this part of the South East, older roofs are mostly slate or clay tile and many newer ones concrete tile, with flat-roofed extensions, dormers and garages common everywhere. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. Listing and conservation areas can both shape what roof work is allowed on an older home. The council is the place to check, along with Historic England’s list, before anyone quotes for re-roofing.
Take an older house close to St Andrew's Church: flat-roofed rear additions and dormers added over the years are worth checking. If you run a business near The Oracle, a flat roof over a business is out of sight and out of mind until it leaks.
Sonning is about 1 mile north-west of Woodley, in Reading. We survey roofs in Sonning across London and South East England. Our Reading coverage includes Sonning.
Surveys in RG4 are booked the same way as anywhere else. You’ll find streets such as High Street, Parkway Drive and Pound Lane, and we cover them all. Main roads around Sonning include the B478 and B4446, which makes travel easy. Neighbouring places we cover for flat roof surveys include Play Hatch (1 mile north-west), Dunsden Green (2 miles north-west), Newtown (2 miles south-west), Caversham Park Village (2 miles north-west) and Littlestead Green (2 miles north-west). Further out, we also cover Caversham (3 miles west), Norcot (5 miles west), West Reading (4 miles west), Tilehurst Within (5 miles west), Shinfield (5 miles south-west) and Arborfield Garrison (6 miles south).
What’s near Sonning
We work in homes and buildings around Ali's Pond Local Nature Reserve, Bull Inn and Waingels College. The nearest railway station is Twyford station, about 1.9 miles east of the centre. Well-known places in the area include Berkshire Medical Heritage Centre Museum (2.5 miles south-west) and Royal Berkshire Hospital (2.6 miles south-west). For a walk, there is Sonning Hill and South Lake.
How it works
We photograph the roof as we go, so you can see in the report what we found and where. We take close-ups from wherever is safe. A typical visit takes about one to two hours on an ordinary house; commercial roofs usually need 3–4 hours. Cottages and farmhouses around Sonning often have roofs at several levels, with lean-tos and outbuildings attached. Each part is looked at from wherever it can be seen safely.
- We agree the roof to be surveyed, its use and any leaks you know about.
- The roof is viewed from safe positions, including the roof itself where that is safe.
- The covering is checked for wear, splits, blisters and standing water.
- Upstands, outlets, edge trims and rooflights are checked and photographed.
- A written report with photos and recommendations is emailed to you.
Before the survey
- For a flat or shared roof, check access with the building owner or managing agent
- Let us know about parking near the property
- Jot down any questions you want answered
How to book
Most bookings start with a short call: phone 07833 053749 or email us and we will ask a few questions about the roof. The price is agreed before a date is set.
Advice
Places near Sonning
Also in Sonning
What you can safely check yourself
Watch the gutters in a downpour, from a window or the ground. Overflowing water can be a sign of a blockage or a gutter that has dropped.
Fresh stains on ceilings or walls after rain are worth noting. Take a photo and write down when you saw it.