Surrey · London and the South East
St John's Flat Roof Survey
We carry out flat roof surveys in St John's and the rest of Surrey. Surveys run on weekdays, Saturdays and Sundays.
- Upstands pulling away from walls
- Damaged trims at the roof edge
- Standing water left after rain
Flat roof survey in St John's
A flat roof survey looks at the covering, the edges, the outlets and the details where the roof meets walls and rooflights. We cover felt, mastic asphalt, EPDM rubber, GRP fibreglass and single-ply roofs. It suits a small roof over an extension or garage as well as a large one over flats, offices or units. You get a report with photographs and our recommendations. Typical surveys look at blocked or damaged outlets and pools of water lying on the roof, across EPDM rubber, upstands and outlets and single-ply membranes.
Outbuildings, garden rooms and garages in places like St John's often have flat roofs of their own. They’re easy to forget, but water through a garage roof can spoil whatever is stored inside. If you want them looked at too, mention them when you book, along with the main flat roof. Smaller roofs use the same coverings as bigger ones, from felt to rubber and GRP, and age in the same way.
You receive the findings by email, easy to pass on to a roofer, an agent or an insurer. Basic reports come within 48 hours, Standard within 24–48 hours and Premium on the day.
- Where
- St John's (GU21, GU22)
- Wider area
- Surrey
- Cost
- From £150 inc. VAT
- Report
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Why act early in St John's
Caught early, a split or open seam in a flat roof is often a small repair. Left alone, water can soak the insulation and the deck, and the job grows. Surveying it now tells you where you stand. Homes in smaller places like St John's can face more weather, so a loose ridge or verge soon lets rain in. Each storm lifts it a little further.
Simple, low roofs take less time to survey than tall or complicated ones, and the package matters as well. We will give you the figure before anything is booked.
Why book us in St John's
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
- Satisfaction rate of 98%
- Thermal imaging and drone inspection where they help
- Independent findings on the roof’s condition
Read how roof surveys are priced and what we found on two real jobs.
What you can safely check yourself
If you have a loft with safe access, take a look inside. Take a torch and only step on boards or joists, checking for stains, damp wood or chinks of daylight.
Your own check is a good start, but it isn’t a survey. From the ground, valleys, flashings and the backs of chimneys are often out of sight.
Also near St John's
What else we do in St John's
What we do, step by step
The visit normally starts outside and finishes in the loft: first the slopes, edges and gutters from every safe viewpoint, then the loft space where it can be reached. In total, it takes about one to two hours for an extension, garage or dormer roof, and around 3–4 hours for a commercial flat roof. A visit to St John's is planned like any other: the time, the access and where to park are agreed in advance. Weekday and weekend visits are both possible. If there are outbuildings or garages you want looked at, mention them.
- First we go through the roof, what’s beneath it and any problems so far.
- We check the roof from ground level, windows and the roof where it 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.
Preparing for the visit
- Keep pets in another room
- If the roof is shared, arrange access with whoever manages the building
- Jot down any questions you want answered
Getting a price
A quick phone call is typically the easiest start: ring 07833 053749 or drop us an email and we’ll ask a few questions about the roof. You will have a price before anything is arranged.
Related advice
Your questions about flat roof surveys in St John's
Is St John's within the area you cover?
Yes, St John's is covered. Our area covers London and South East England, from towns to the smallest villages. The journey is planned ahead, so it is useful to know about access.
How do I find out if my home in St John's is listed?
Your council is the best source, with Historic England’s list for listed buildings. A change of roofing material may need consent in either case.
Does the report include photographs?
Yes. Photographs are part of every report, so you can see exactly what each finding refers to.
What does ponding on a flat roof mean?
Standing water on a flat roof deserves a closer look. It can point to blocked outlets, poor falls or a deck that is sagging, and it wears the covering faster. Our survey notes the ponding and what seems to be causing it.
Which days do you carry out surveys?
We survey on any day from Monday to Sunday, during the day. Let us know your preferred days when booking.
Does the survey cover asbestos?
We don’t test for asbestos. Where a roof has materials that might contain asbestos, like old cement sheeting, the report flags them and recommend a specialist asbestos surveyor.
Can you find where water is getting through my flat roof?
We check the whole roof, since water can travel before it shows inside. Splits, open laps, upstands, outlets and rooflights are all checked. Where nothing visible explains the leak, the report says what to try next.
Flat roof surveys in St John's: local notes
Older houses across Surrey frequently have handmade clay tiles, and many have tile-hanging. Horsham stone slab roofs survive on some old buildings in Surrey. Mixed in with those pitched roofs are plenty of flat ones, over rear extensions, dormers, garages and shops. If your home is older, it is worth knowing whether it’s listed or in a conservation area before planning roof work. Listed building consent covers changes to a listed building’s special interest, and an Article 4 direction can bring extra controls in a conservation area.
The streets around a church such as St John's Church are often among the oldest in a place, and if you own one of the older houses nearby, the joins between later flat roofs and the old walls are where problems typically start. For businesses in and around places like The Peacocks, flat roofs over shops and units are easy to forget until water comes through a ceiling. Landlords with a home close to Woking station may find that the flat roof over a let home is worth a look before it becomes a tenant complaint.
St John's is about 1 mile west of Woking, in Surrey. We survey roofs in St John's and the rest of Surrey. We cover towns and villages across Surrey.
We survey roofs across the GU21 and GU22 postcode area for flat roof surveys and the streets around it. Streets in the area include Pond Road, Copse Road and Raglan Road, and we cover them all. Main roads around St John's include the A324. Other places close to St John's include Goldsworth Park (1 mile north-east), Woking (1 mile east), Westfield (2 miles south-east), Horsell (2 miles north-east) and Mimbridge (2 miles north). Further out, we also cover Guildford (5 miles south), Camberley (6 miles west), Epsom (14 miles east), Farnham (11 miles south-west), Ewell (15 miles east) and Egham (8 miles north).
Around St John's
Locally, jobs take us to homes and businesses close to Hoe Valley School, The Oaktree School and Royal Oak pub. The closest station to St John's is Woking station, roughly 1.6 miles east. A little further out are Brookwood Hospital (1 mile west) and The Peacocks (1.6 miles east). Not far away are Brookwood Lye.
Roof by roof
Single-ply membranes
On single-ply roofs, the welds between sheets are the key detail. We look at seams, corners and the joints around outlets and upstands.
GRP fibreglass
GRP can crack if the deck beneath flexes or if the resin was laid too thin. Our report notes cracks and any sign that the deck is flexing.
What we can’t see
Some things cannot be seen without opening up the roof, and that sets some limits:
- Parts of the roof that are not safe to walk on or view
- A promise that the roof won’t leak in future
- Whether the deck or joists are strong enough
Not sure which survey suits your roof? You can call 07833 053749 or send us an email and we will tell you. What our survey covers.
What this survey covers
- EPDM rubber
- Upstands and outlets
- Mastic asphalt
- Felt flat roofs
- Single-ply membranes
- GRP fibreglass
Practical tips
Here are a few things we’d tell any owner, before and after a survey:
- Book a survey every few years
- Limit foot traffic on the covering
- Treat rooflights and old sheeting as fragile
- Keep outlets clear of leaves and moss
Landlords, owners and managing agents can keep the report as a dated record of the roof. It is useful when planning upkeep and setting budgets, and it makes changes easy to spot at the next survey.
Keep outlets, gutters and hoppers clear, especially after the leaves fall. Water that can drain away does far less harm than water that sits.