Greater London · London and the South East
Flat roof survey in St Helier, Greater London
A careful look at the flat roof at your property in St Helier, and put it all in a photo-illustrated written report.
- Cracked or split membrane
- Signs of deflection in the roof deck
- Damaged trims at the roof edge
Flat roof survey in St Helier: what you get
A Basic Survey, from £150, covers a visual inspection, a condition report, photos and written recommendations. The Standard Survey, from £250, adds moisture detection and a structural check. Moisture readings are useful on flat roofs, where water can spread under the covering before it shows inside. Bigger commercial roofs are priced on their size and access. We survey mastic asphalt, upstands and outlets and GRP fibreglass, and the problems we are asked to look at most are standing water left after rain and loose or cracked edge trims.
Across London, flat roofs are everywhere, from back additions and dormers to roof terraces, blocks of flats and offices. Coverings range from felt and asphalt to EPDM rubber, GRP fibreglass and single-ply membranes, and each fails in its own way. In St Helier, as anywhere in London, the right approach depends on what the roof is made of. Older flat roofs are often felt or asphalt, newer ones rubber or GRP.
The report works through the roof section by section, from the main slopes down to the gutters and outlets, with a note and a photo for each point. It records what’s sound as well as what isn’t.
- Location
- St Helier (SM5, SM4, SM1)
- Wider area
- Greater London
- Prices
- From £150 inc. VAT
- Report
- A written report with photos, by email
- Appointments
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
When you need someone else
It’s a careful look at the flat roof, not the whole story. The main limits are:
- Whether the deck or joists are strong enough
- Hidden layers beneath the covering
- Whether old sheeting or boards contain asbestos
If in doubt, call 07833 053749 or email us and we’ll suggest the right survey. What a survey covers and doesn’t.
What we look at
- EPDM rubber
- Felt flat roofs
- GRP fibreglass
- Mastic asphalt
- Upstands and outlets
- Single-ply membranes
How we price flat roof surveys
Prices vary from roof to roof, for these reasons:
- How tall the building is and how easy the roof is to see
- The roof’s overall size
- The package you choose: Basic, Standard or Premium
- Extra roofs, like extensions, dormers or garages
Every price we give includes VAT. Prices start from £150, including VAT. You will know the exact price before booking.
Helping us price your survey
The more you tell us, the easier it is to price the survey. When you contact us, it’s useful to mention:
- Your postcode, so we can check access and travel
- Any marks or damp showing indoors
- The style of property, from a terrace to a block
- Access details, like a loft hatch or a shared roof
Booking is simple: just phone 07833 053749 or use the contact form, let us know about the property and we’ll point you to the right survey. The price is agreed up front.
Flat roof surveys around St Helier
Further from the centre, London’s housing takes in interwar semis with hipped roofs in clay or concrete tiles as well as slate-roofed terraces. Bay roofs, hip ridges and dormers from later loft conversions are the details that set these houses apart. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. With Nonsuch Mansion about 2.6 miles south-west, St Helier sits in an area with a long building history. 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 own a rental within reach of Sutton Common station, the flat roof over a let home is worth a look before it becomes a tenant complaint. For a London address like St Helier, it helps to know about controlled parking before the day.
St Helier is about 3 miles south-east of Wimbledon, in Greater London. In St Helier, as across Greater London, every roof gets the same careful survey. St Helier is one of the towns and villages in Greater London we cover for flat roof surveys. You can also see our page for London.
All of SM5, SM4 and SM1 is covered for flat roof surveys. Whether your property is on Kelso Road, Wrythe Lane and Whitby Road or anywhere close by, we can help. Nearby, we also carry out flat roof surveys in Rosehill (1 mile north-east), Benhilton (1 mile south-west), The Wrythe (1 mile south-east), Carshalton (1 mile south-east) and Sutton (1 mile south). Further out, we also cover London (9 miles north-east), City of Westminster (9 miles north), Marylebone (9 miles north), Kensington (8 miles north), St Pancras (10 miles north) and Shoreditch (11 miles north-east).
Landmarks near St Helier
Locally, jobs take us to homes and businesses close to Greenshaw High School, The Cricketers Inn and Merton College and the streets around them. The closest station to St Helier is Sutton Common station, roughly 0.8 miles south-west of the centre. Well-known places in the area include St Helier Hospital (less than half a mile south) and Chessington Castle Hill (5 miles west). The countryside around St Helier includes Bennett's Hole and Duppas Hill.
Why act early in St Helier
Most flat roofs are out of sight, so they’re easy to forget. Owners often learn the roof is at the end of its life only when it leaks. A survey every few years stops that from catching you out. A hidden valley or parapet gutter on a London house can hold water for weeks before anyone notices. When the stain finally shows, the damage underneath is frequently older than it looks.
For a price for your roof in St Helier, call 07833 053749 or email us with the address and some details. The price is agreed before a date is set.
Why choose Independent Roof Survey in St Helier
- Package prices that include VAT
- Photos and a written report every time
- An independent look at the roof
- Thermal imaging and drone inspection where they help
Read our cost guide and our case studies.
Your questions about flat roof surveys in St Helier
Will parking be an issue for a roof survey in St Helier?
Parking in St Helier, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.
Is my home in St Helier listed or in a conservation area?
The council and Historic England’s list are the places to check. It’s worth checking before planning roof work, as both can affect what’s allowed.
Do you work in St Helier?
Yes, we do. St Helier is part of the area we cover, and the service is the same as everywhere else we work.
What happens next?
The report arrives by email, with photos and clear recommendations. The Standard Survey includes a follow-up consultation, and the Premium Survey an in-person consultation, so you can talk the findings through.
Do you use drones?
Where it is applicable and safe, yes. We are a CAA-registered drone operator (Flyer ID and Operator ID), flying a sub-250g drone. Drone inspection is part of the Drone Roof Survey and the Premium Survey, where it applies.
Can you tell me how long my flat roof will last?
We do not put a figure on it. As a guide, felt often lasts around 15 to 20 years, EPDM frequently 30 to 50 and GRP up to about 30, but the report tells you how your roof is really doing.
Do you look for flat roof leaks?
Our survey looks across the whole roof, not only above the stain. Splits, open laps, upstands, outlets and rooflights are all checked. Where nothing visible explains the leak, the report says what to try next.
How it works
We do not take risks to get a closer look. Everything that can be seen safely is inspected, and if part of the roof can’t be seen, the report says so. Most visits take between one and two hours for an extension, garage or dormer roof, and around 3–4 hours for a commercial flat roof. In a London area like St Helier, the main things to sort out are parking and access: tell us about permits, visitor bays or off-street space, which floor the property is on and how to get into the loft. We then look at whatever is safely visible from ground level, windows, the loft and, where it’s safe, the roof itself.
- You send us the address and, for commercial roofs, an idea of the roof’s size.
- We check the rooms or spaces under the roof for staining where there’s access.
- The roof is inspected from every safe viewpoint, without walking on fragile surfaces.
- We record every defect with a photo and its likely cause.
- The report explains the condition and recommends what to do first.
Before the survey
- Leave a clear route to the loft
- Point out any leaks or damp patches
- Have any paperwork from past roof work to hand
Booking a survey
Most bookings start with a short call: call 07833 053749 or send us an email. You will have a price before anything is arranged.
Advice
Landlord and commercial surveys in St Helier
Letting agents often book on a landlord’s behalf, with the report sent to whoever needs it. We agree a time with the tenant beforehand.
We survey roofs for letting agents and landlords as well as homeowners. The report gives you a dated record of the flat roof, with photographs.
Towns and villages near St Helier
Other services in St Helier
Common roof problems in St Helier
Water that doesn’t drain sits on the roof and speeds up wear. Blocked outlets, poor falls and a sagging deck are the usual causes. Where trees are close by, leaves and silt can block an outlet within a single autumn.
Things that frequently lead to a survey include:
- A sagging deck under the covering
- Pools of water lying on the roof
- Water getting in at rooflights
- Outlets that hold water back
If you look after a shop, office or commercial unit, for example near Centrale Croydon, a flat roof over a business is out of sight and out of mind until it leaks.
Questions to ask before booking
- What they will not be able to tell you
- Whether the price includes VAT
- What insurance they carry
- Will the report include photos?