Greater London · London and the South East
Flat roof survey in Osterley, Greater London
Surveys of flat roofs on homes, extensions and commercial buildings in Osterley, using drones and thermal imaging where applicable. Call or email for a price.
- Upstands pulling away from walls
- Outlets that hold water back
- Failed seals around rooflight kerbs
Do you need a flat roof survey in Osterley?
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. Older coverings that have lost their flexibility are the most likely to suffer.
A survey can pick up problems such as:
- Failed seals around rooflight kerbs
- Standing water left after rain
- Failed upstands where the roof meets a wall
- Blisters and bubbles in the covering
For landlords with property near Isleworth station, flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Before booking anyone
- Which limits apply to the survey
- How they’ll see the roof: from the ground, the loft, the roof or by drone
- What the report includes, and whether it has photos
- Is VAT included in the price?
How a flat roof survey works in Osterley
If the house you are buying has a flat roof on an extension, dormer or garage, it is worth knowing its condition before exchange. Felt roofs often last around 15 to 20 years, while EPDM and GRP often last longer. We set out the type of covering, its condition and the defects we found, with a photo of every defect. That gives you facts to raise with the seller or agent. We are often asked to look into standing water left after rain and damaged trims at the roof edge, on mastic asphalt, GRP fibreglass and upstands and outlets.
London has a lot of flat roofs: rear additions, dormers, roof terraces and the roofs of blocks 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 Osterley, as anywhere in London, the right approach depends on what the roof is made of. Many older flat roofs are felt or asphalt, and many newer ones EPDM rubber or GRP.
After the visit, you get a report with photos, emailed to you. It sets out the condition of the flat roof, any defects and our written recommendations.
- Where
- Osterley (TW7, TW3, TW5)
- Region
- Greater London
- Prices
- From £150 inc. VAT
- Your report
- Emailed report with photos and recommendations
- Appointments
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Last updated
- 27 October 2026
Towns and villages near Osterley
Also in Osterley
Leave it or get it looked at?
A small split in a flat roof is usually a modest job when it is found early. Left alone, water can soak the insulation and the deck, and the job grows. A survey now shows which you’re dealing with. Many older London roofs have only old felt under the slates, or no underlay at all, so once the slates or flashings let water past, little stops it reaching ceilings. Left alone, that means wet timbers and plaster, which is a far bigger job than the roof fault itself.
Prices start from £150, including VAT. Basic starts from £150, Standard from £250 and Premium from £400, VAT included.
Why us?
- Visits on any day of the week
- 5,000+ roofs surveyed
- Prices that include VAT
- An independent look at the roof
Take a look at what a roof survey costs and what we found on two real jobs.
How the survey works
We’ll ask a few questions first, such as when any problem began and what work has been done before. Then the inspection itself takes roughly 1–2 hours for a small flat roof at home, and longer for a large commercial one. In a London area like Osterley, the main things to sort out are parking and access: let us know about permits, visitor bays or off-street space, which floor the property is on and how to get into the loft. On the day, the roof is looked at from ground level, from windows, from inside the loft space and from the roof where it’s safe.
- We start with the address and, on larger roofs, the roof area and access.
- 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.
- Each defect is photographed and its likely cause noted.
- The report explains the condition and recommends what to do first.
Before we arrive
- Show us where any leaks or stains appear
- Unlock side gates and any roof access doors
- Jot down any questions you want answered
Arrange a survey
You can call us seven days a week. To book or ask a question, ring 07833 053749 or use the contact form.
Related advice
Landlord and commercial surveys in Osterley
Landlords, agents and building managers in Osterley and across Greater London can book any of our surveys. For a price for a let property or a block, phone 07833 053749 or send us an email.
If the property is let, the agent or a tenant can let us in. Surveys run on weekdays, Saturdays and Sundays, which helps when tenants work during the week.
What we look for on each type of roof
Mastic asphalt
Mastic asphalt is a heavy, seamless covering often found on older blocks, balconies and commercial roofs. The survey checks for crazing, cracking, blistering and splits where the asphalt turns up the walls.
Rooflights and upstands
The joins around rooflights and at upstands are common leak points. We check how the covering is finished around each rooflight and upstand.
Prices for flat roof surveys in Osterley
Every roof is different, so prices are confirmed before you book. These are the things that affect it:
- Extensions, dormers and garages with roofs of their own
- Basic, Standard or Premium
- How tall the building is and how easy the roof is to see
- If the survey needs thermal imaging or a drone
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. The price is confirmed before booking.
What to tell us when you get in touch
To price your survey accurately, we’ll ask about:
- Any photos you have, taken from ground level or a window
- The reason for the survey, like buying, a leak or storm damage
- What kind of property and roof it is
- Any deadline, such as an exchange date
To get a price for flat roof surveys in Osterley, phone 07833 053749 or use the contact form. The address, the type of property and what you need to know help us price the survey accurately.
Flat and commercial roofs around Osterley
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. Mixed in with those pitched roofs are plenty of flat ones, over rear extensions, dormers, garages and shops. Historic houses like Osterley House, about 0.3 miles north, show how far back building in the area around Osterley goes. Older homes in the wider area often have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years, and the council can say whether a home is in a conservation area.
For an older house near a landmark such as St Mary's Church, any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof. For a London address like Osterley, it is useful to know about controlled parking before the day.
Osterley is about 1 mile north of Hounslow, in Greater London. We carry out flat roof surveys in Osterley for houses, flats, blocks and commercial buildings. We cover towns and villages across Greater London, from the larger towns to small villages. There is also a page for London.
Here we cover the TW7, TW3 and TW5 postcode area for flat roof surveys. We offer flat roof surveys to properties on Jersey Road, Church Road and Gresham Road. If you are just outside Osterley, we cover Spring Grove (1 mile south-east), Lampton (1 mile south-west), Norwood Green (1 mile north-west), Gillette Corner (1 mile east) and Woodlands (1 mile south). Larger places within reach include London (11 miles east), City of Westminster (9 miles east), Marylebone (9 miles east), Kensington (6 miles east), St Pancras (10 miles east) and Shoreditch (12 miles east).
Around Osterley
Locally, jobs take us to homes and businesses close to The Plough Public House, Spring Grove Primary School and Inwood Park. The closest station to Osterley is Isleworth station, roughly 0.9 miles south-east of the centre. A little further out are Museum of Army Music (2.1 miles south) and West Middlesex University Hospital (1.3 miles south-east). Not far away are Castlebar Hill and Garden Lake.
Common questions in Osterley
Is Osterley in the area you cover?
Yes, Osterley is within the area we cover. We cover the whole of London and South East England. You can ring 07833 053749 or email us with the address and some details, and we will talk through which survey suits.
Is parking a problem for a survey in Osterley?
Sometimes, yes. If Osterley has controlled parking where you are, a visitor permit is the easiest answer.
Are you insured?
We hold professional indemnity and public liability insurance.
Do you give a life expectancy for the roof?
A precise figure is not something we give, because it depends on upkeep, weather and how the roof was laid. Our report describes the condition and what needs doing, and when.
I live in a flat. Can you survey the roof?
Yes, once access has been agreed. The roof of a block or converted house is frequently shared, so we need permission from the freeholder or managing agent. We inspect only the parts we’re allowed to reach.
Does the report include photographs?
Yes. Photographs are part of every report, so you can see each point for yourself.
Will you walk on the flat roof?
Only where it is 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.