Greater London · London and the South East
Flat roof survey in Greenhill, Greater London
Surveys of flat roofs on homes, extensions and commercial buildings in Greenhill, with drones and thermal imaging where they help. Call or email for a price.
- Standing water left after rain
- Blocked or damaged outlets
- Cracked or split membrane
What we are asked to look at in Greenhill
Buyers frequently book after their home survey suggests a closer look at a flat roof. Owners and managing agents use a survey to plan upkeep, or ahead of a sale or a new lease. In each case, the report gives a written, photographed record of the roof’s condition.
Signs worth acting on include:
- Failed seals around rooflight kerbs
- Upstands pulling away from walls
- Blocked or damaged outlets
- Cracked or split membrane
Controlled parking zones are common in London, so mention any permit rules for Greenhill, along with any off-street space.
What to check before booking
- Their report turnaround times
- Which viewpoints they use to see the roof
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- Their track record with similar roofs
Flat roof surveys for homes and businesses in Greenhill
A Basic Survey, from £150, covers a visual inspection, a condition report, photos and written recommendations. For moisture detection and a structural check, the Standard Survey starts from £250. On a flat roof, moisture readings can help show whether water has got under the covering. Bigger commercial roofs are priced on their size and access. We are often asked to look into edge trims that have lifted or split and outlets that hold water back, on GRP fibreglass, upstands and outlets and mastic asphalt.
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, each with its own weak points. Which one is on a roof in Greenhill shapes how it’s checked. Many older flat roofs are felt or asphalt, and many newer ones EPDM rubber or GRP.
Every survey ends with a written report, with photographs, emailed to you. It sets out the condition of the flat roof, any defects and our written recommendations.
- Place
- Greenhill (HA1, HA3, HA2)
- Wider area
- Greater London
- Cost
- From £150 inc. VAT
- Reports
- Written, with photos, emailed to you
- When we survey
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Page updated
- 27 October 2026
What happens on the day
The visit normally starts outside and finishes in the loft: outside views come first, then the roof space if there is safe access. All told, expect an hour or two for an extension, garage or dormer roof, and around 3–4 hours for a commercial flat roof. London terraces rarely offer a view of the whole roof from one spot, so in Greenhill we work round the house, using the street, the windows, the loft and any safe vantage point behind it. Shared stairs or a basement flat? Tell us who holds the keys.
- We agree the roof to be surveyed, its use and any leaks you know about.
- 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.
How to prepare
- Make sure we can get to the back of the property
- Note where any stains or damp appear
- Have any questions written down, so nothing gets missed
Book a survey
Every survey is priced before it is booked, so you know where you stand. Prices start from £150, including VAT. For a price for your roof, call 07833 053749 or email us.
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FAQs for Greenhill
Can parking be tricky for a visit in Greenhill?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Do you carry out roof surveys in Greenhill?
Yes, Greenhill is within the area we cover. We work right across London and the South East. You can ring 07833 053749 or email us with the address and some details, and we will talk through which survey suits.
Can you survey in bad weather?
Some surveys depend on the weather more than others. Drone flights need calm, dry weather, and thermal imaging works best with a dry roof, little wind and a sunny day beforehand. We’ll rearrange with you if the weather isn’t right.
How long have you been surveying roofs?
We have more than 20 years’ experience and have carried out more than 5,000 surveys across London and South East England.
What happens after the survey?
You will receive the report by email, and you decide the next step: raise it with a seller, send it to an insurer, brief a roofer or share it with a managing agent.
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 water that sits wears the covering sooner. We record where it sits and the likely cause.
Do you give a life expectancy for the roof?
We do not give a fixed number of years, because it depends on upkeep, weather and how the roof was laid. Our report describes the condition and what needs doing, and when.
What this survey can’t tell you
In fairness, there are limits to any roof survey:
- Whether the deck or joists are strong enough
- Parts of the roof that aren’t safe to walk on or view
- A promise that the roof won’t leak in future
If you are not sure which survey you need, call 07833 053749 or drop us an email and we’ll give you a straight answer. What a survey covers and does not.
Roof types and parts we check
- EPDM rubber
- Felt flat roofs
- Single-ply membranes
- Mastic asphalt
- Upstands and outlets
- GRP fibreglass
Flat roofs in Greenhill
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. On a semi of that age, the small roofs over the bays, the hip tiles and any later dormer each need their own look. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. The wider area around Greenhill has a long history of building, with Headstone Manor about 1.1 miles north-west. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and the council can say whether a home is in a conservation area.
If you let a flat or house near Harrow-on-the-Hill station, the flat roof over a let home is worth a look before it becomes a tenant complaint. For site and facilities teams at buildings like Saint Jerome Church of England Bilingual School, ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Greenhill is about 1 mile north-east of Harrow, in Greater London. From houses to flats and shops in Greenhill, we can survey the roof. Across Greater London, we cover Greenhill. There is also a page for London.
All of HA1, HA3 and HA2 is covered for flat roof surveys, from the main roads to the quietest streets. If you need a flat roof survey at a property on Lyon Road, Hill Road and Byron Road or anywhere close by, we can survey it. If you are just outside Greenhill, we cover Wealdstone (1 mile north), Northwick Park (1 mile south-east), Harrow (1 mile south-west), Kenton (1 mile east) and Roxeth (1 mile south-west). Larger places within reach include London (12 miles south-east), City of Westminster (9 miles south-east), Marylebone (9 miles south-east), Kensington (8 miles south-east), St Pancras (10 miles south-east) and Shoreditch (12 miles east).
Around Greenhill
Typical jobs here are in homes near Royal Oak pub, Northwick Park and Harrow High School, among other places. There’s a railway station in Greenhill itself: Harrow-on-the-Hill station. Nearby you’ll also find St. Anns (less than half a mile south-west) and Hilfield Castle (4.8 miles north). The countryside around Greenhill includes Masons Field and Northala Fields.
Why act early in Greenhill
Most flat roofs are out of sight, so they’re easy to forget. Owners frequently 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. In Greenhill, as in much of London, water from a roof defect can reach a neighbour’s home as easily as yours: a blocked parapet gutter or slipped slate can let water into the flat below or the house next door. Finding it early keeps the work smaller.
Every price we give includes VAT, and the written report is part of the package. Our price is from £150, including VAT. Size, height and access decide where your roof falls.
Why book with us
- Prices that include VAT
- Insured for professional indemnity and public liability
- Drones and thermal imaging where applicable
- Over 5,000 surveys carried out
Read our cost guide and what we found on two real jobs.
What a survey costs
The price reflects the time and kit the roof needs. The main factors are:
- How many separate roofs there are, like extensions, dormers and garages
- The shape of the roof and its details
- If the survey needs thermal imaging or a drone
- Commercial roofs and larger buildings
For a price for your roof in Greenhill, phone 07833 053749 or email us and let us know about the roof. We’ll confirm the figure before booking.
What we need to know
A little information up front helps. Please include:
- What made you get in touch
- Where water is showing inside, if it is
- The address and postcode of the property
- Anything about access we should know
Booking is simple: just call 07833 053749 or send us an email, let us know about the property and we will explain which survey suits. The price is agreed up front.
Also near Greenhill
More services for Greenhill
Surveys for landlords and agents in Greenhill
Landlords and letting agents in Greenhill book surveys as well as homeowners. The report gives you a dated record of the flat roof, with photos, useful for planning maintenance.
If you own several properties, you can book surveys for several addresses. To discuss a number of properties, phone 07833 053749 or drop us an email with the addresses.