Greater London · London and the South East
Flat Roof Survey in St James's
Flat roof surveys in St James's and the rest of Greater London. Surveys run on weekdays, Saturdays and Sundays.
- Splits, cracks and crazing
- Loose or cracked edge trims
- Blisters and bubbles in the covering
Flat roof survey in St James's
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 survey GRP fibreglass, mastic asphalt and single-ply membranes, and people most often book us about blocked or damaged outlets and ponding water that doesn’t drain away.
Offices, shops and blocks of flats across London often have large flat roofs with plant, rooflights and walkways. Every penetration and upstand is a place where a membrane can fail. In St James's, roof access is agreed with the building manager or owner beforehand. Plant bases, rooflights and cable entries are all places where water can get in.
Nothing in the report is left vague: where something needs attention, it says so plainly, along with how urgent it is.
- Where
- St James's (W1F, W1D, W1J)
- Region
- Greater London
- Cost
- From £150 inc. VAT
- Report
- A written report with photos, by email
- When we survey
- Monday to Sunday, daytime
- Insurance
- PI and public liability insurance
- Call
- 07833 053749
- Page updated
- 27 October 2026
Signs you need a flat roof survey in St James's
Flat roofs often get walked on for other jobs: cleaning windows, fitting aerials or air conditioning, or clearing gutters. A covering that wasn’t designed for foot traffic can crack or puncture. Fixings added through the covering often start leaks too.
Problems we come across often include:
- Gaps at upstands and abutments
- Blistering in felt or asphalt
- Edge trims that have lifted or split
- Splits and cracks in the covering
Hotels and guest houses near St James's cannot easily close rooms for a leak.
Before booking anyone
- What follow-up you get after the report
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- What the survey will not cover
- Whether VAT is added on top
What affects the cost of flat roof surveys
To price your survey, we check:
- Which survey package you book
- How tall the building is and how easy the roof is to see
- Extensions, dormers and garages with roofs of their own
- The use of thermal imaging or a drone
The Premium Survey includes thermal imaging and drone inspection where applicable, which starts from £400, including VAT. We can help you choose the package that fits what you want to find out.
What we need to know
When you call or email, these details help:
- Your postcode, so we can check access and travel
- When you need the report by
- Any photos you have, taken from the ground or a window
- Why you want a survey: buying, a leak, a storm or new work
Booking is simple: just ring 07833 053749 or use the contact form and give us some details about the property and we’ll explain which survey suits. The price is agreed up front.
Before and after the survey
You do not need to be a roofer to help. What helps most:
- Have the roof looked at again after a severe storm
- Check ceilings under the roof for damp patches
- Treat rooflights and old sheeting as fragile
- Look for standing water a day after rain
Many people send the report to two or three roofers for quotes. With each roofer working from the same list, comparing quotes is simpler. You stay in control of who does the work and when.
After heavy rain, look at the roof from an upstairs window if you can. If water is still there a day or two later, have it checked.
The survey, step by step
We look at the roof from outside and, where it’s relevant and there’s safe access, from inside the roof space too. Inside, we look for staining, damp, gaps and signs of movement. The whole visit normally takes about 1–2 hours for most houses, or half a day or so for a commercial building. For a visit in St James's, parking and access are the things to plan: let us know 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 everything that’s safely in view from ground level, windows, the loft and, where it’s safe, the roof itself.
- We start with the address and, on larger roofs, the roof area and access.
- Inside, we look for signs of water under the roof where we can reach.
- We view the roof from safe positions and never walk on fragile surfaces.
- Each defect is photographed and its likely cause noted.
- You get a report setting out the condition and our recommendations, in order of urgency.
Before the survey
- Have any paperwork from past roof work to hand
- Note where any stains or damp appear
- Make sure pets are kept safely away
Getting a price
A quick phone call is normally the easiest start: ring 07833 053749 or email us. The price is agreed before a date is set.
Related advice
Towns and villages near St James's
Other services in St James's
What a flat roof survey does not cover
It helps to know what a survey won’t do before you book:
- A structural engineer’s assessment of the deck
- Hidden layers beneath the covering
- A fixed date for when the roof will need replacing
Not sure which survey suits your roof? You can call 07833 053749 or drop us an email and we’ll tell you. The full list of what we check.
What we look at
- Single-ply membranes
- Upstands and outlets
- Mastic asphalt
- EPDM rubber
- Felt flat roofs
- GRP fibreglass
FAQs for St James's
Do you look at commercial flat roofs near St James's, such as hotels?
Yes. As well as homes, we look at flat roofs on offices, hotels, blocks of flats and commercial units. Larger commercial roofs are quoted for the building, and roof access is agreed with you before the visit.
How do I find out if my home in St James's is listed?
For listing, use Historic England’s list; for conservation areas, ask the council. The answer matters most when a change of material is on the cards.
How much is a survey?
Flat roof survey starts from £150, including VAT. What you pay for your roof depends on its size, height, access and the package, and it’s agreed before booking.
What does the report include?
It explains what we saw, what it means and what we’d suggest, with photographs throughout. Anything we couldn’t see safely is noted too.
How long does the survey take?
Most surveys take an hour or two for a house, or half a day or so for a commercial building. The report follows by email.
Do you carry professional indemnity insurance?
We’re covered by professional indemnity and public liability insurance.
How soon will I get the report?
Each package has its own report time. Basic: within 48 hours. Standard: 24 to 48 hours. Premium: the same day. Mention any deadline when booking.
Flat and commercial roofs around St James's
Historic houses such as Marlborough House, about 0.3 miles south-west, show how far back building in the area around St James's goes. Older homes in the wider area frequently have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and a listed home or one in a conservation area may need consent for changes of material. There are several hotels within about a mile and a half of St James's, and hotels, like offices and blocks of flats, often have flat roofs. If you look after one, a leak through a flat roof can put a room out of use.
Take an older house close to St James’s Church: the flat roofs on later extensions tend to wear out long before the main roof. Landlords with a home close to London Charing Cross station may find that flat roofs over rear additions and dormers in rented property are worth checking between tenancies.
St James's is about 1 mile south-east of City of Westminster, in Greater London. Bookings from St James's are handled just like any other: get in touch, agree the price and pick a day. St James's is one of the places in Greater London where we work.
All of W1F, W1D and W1J is covered for flat roof surveys. We cover properties on Duck Lane, Bruton Lane and Bridle Lane. With the A4 and A400 close by, St James's is simple for us to get to. Other places close to St James's include Chinatown (1 mile north), Charing Cross (1 mile east), Soho (1 mile north), West End (1 mile north-east) and Burlington Estate (1 mile west). Within a short drive, we also cover Kensington (3 miles west), Shoreditch (3 miles north-east), Walthamstow (7 miles north-east), Hoxton (3 miles north-east), Whitechapel (3 miles east) and Hampstead (4 miles north-west).
Local landmarks in St James's
Around St James's, our work takes us to homes and buildings near LITE Regal International School, Tom Cribb pub and London Library and the streets around them. Nearby too are Harris Westminster Sixth Form (0.6 miles south) and St Anne's Churchyard (less than half a mile north). There’s a railway station in St James's itself: London Charing Cross station. A little further out are The Museum of Practical Geology (under half a mile north-west) and Montfichet's Tower (1.4 miles east). Not far away are St. James's Park Lake and Ludgate Hill.
Checking the roof from the ground
What you cannot do safely is get up close. Slates, tiles, flat roofs and rooflights can give way. That’s where a survey comes in, using safe viewpoints and a drone where applicable.
Look up at the roof after a storm, from ground level: broken slates or tiles in the garden, gaps along the ridge or loose lead are signs to note. Leave anything above ground level to a survey.