Greater London · London and the South East
Flat roof survey in Lisson Grove, Greater London
Find out the condition of the flat roof at your property in Lisson Grove. Visits run on weekdays and weekends, in the daytime.
- Outlets that hold water back
- Ponding water that does not drain away
- Failed upstands where the roof meets a wall
Flat roof survey in Lisson Grove: what you get
Our Basic Survey, from £150, gives you a visual inspection with photographs and written recommendations. The Standard Survey, from £250, adds moisture detection and a structural check. On a flat roof, moisture readings can help show whether water has got under the covering. Larger commercial roofs are quoted for their size. We are often asked to look into edge trims that have lifted or split and cracked or split membrane, across EPDM rubber, upstands and outlets and single-ply membranes.
Water getting through a flat roof in London can travel under the covering and appear some way from the hole. Outlets, upstands against parapet walls and joins with the main roof are frequent culprits. In a converted house in Lisson Grove, the roof above may belong to the building rather than one flat.
The report does not just list problems. It explains what we found, why it matters and what we recommend.
- Place
- Lisson Grove (NW8, W1H, W2)
- Wider area
- Greater London
- Price
- From £150 inc. VAT
- Report
- A written report with photos, by email
- Survey days
- Monday to Sunday, daytime
- Cover
- PI and public liability insurance
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
Signs you need a flat roof survey in Lisson Grove
Flat roofs often get walked on for other jobs: cleaning windows, fitting aerials or air conditioning, or clearing gutters. Each visit can damage a covering not made for regular foot traffic. New brackets and fixings through the roof are another common source of leaks.
Signs worth acting on include:
- Upstands pulling away from walls
- Standing water left after rain
- Blistering in felt or asphalt
- Splits, cracks and crazing
If you look after a building such as Gateway Academy, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Before booking anyone
- What exactly goes into their report
- Their report turnaround times
- What experience they bring
- Is there a chance to talk the report through?
How the survey works
We don’t take risks to get a closer look. Everything that can be seen safely is inspected, and if part of the roof cannot be seen, the report says so. Most visits take about one to two hours at most homes, and more on a big or complicated roof. In converted houses and mansion blocks, the loft hatch is frequently on a shared landing. If that applies to your building, it helps to agree access with the neighbours or the managing agent first. Otherwise, the visit in Lisson Grove runs like any other.
- 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.
- We view the roof from safe positions and never walk on fragile surfaces.
- We record every defect with a photo and its likely cause.
- You get a report setting out the condition and our recommendations, in order of urgency.
How to prepare
- Have any paperwork from past roof work to hand
- Make sure we can get to the back of the property
- Let us know about parking near the property
Booking a survey
If you have photos of the roof, send them over. Take them safely from the ground or a window; never climb up to get a better view. To get started, phone 07833 053749 or use the contact form.
Related advice
What a flat roof survey doesn’t cover
We only report whatever is safely visible on the day, so some things are outside what a survey can do:
- A promise that the roof will not leak in future
- Structural calculations, which need a structural engineer
- Testing older roof sheets for asbestos
If you’re not sure which survey you need, phone 07833 053749 or use the contact form and we will give you a straight answer before booking. What our survey covers.
What we check
- EPDM rubber
- Upstands and outlets
- Single-ply membranes
- Felt flat roofs
- GRP fibreglass
- Mastic asphalt
Common questions in Lisson Grove
Can you look at the flat roof of a hotel or office near Lisson Grove?
Yes, commercial buildings, hotels included, are part of the work. Roof access is agreed with the building manager or owner beforehand.
Can parking be tricky for a visit in Lisson Grove?
Parking in Lisson Grove, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Will you go up on the roof?
Not always. Some roofs are too steep or fragile to walk on safely. We use safe viewpoints, the roof space and a drone where it applies, and the report records anything we couldn’t see.
Does this replace a RICS home survey?
No. We’re experienced roof surveyors, and our survey covers the roof rather than the whole building. For the rest of the building, a RICS home survey is a separate job.
How soon will I get the report?
That depends on the survey you book: the Basic Survey report arrives within 48 hours, the Standard Survey in 24 to 48 hours and the Premium Survey the same day. Reports are sent by email.
How long will you be at the property?
That depends on the size and shape of the roof, but most surveys take an hour or two at a typical home, and longer for a large or complex roof. The report is sent afterwards by email.
Is Lisson Grove in your area?
Yes. We carry out flat roof surveys in Lisson Grove, and the service is the same as everywhere else we work.
How we price flat roof surveys
To price your survey, we look at:
- Whether thermal imaging or a drone is needed
- Commercial roofs and larger buildings
- The size of the roof
- The number of roofs, including extensions and garages
Bigger, taller and commercial roofs take more time to survey, so they’re priced to match. You’ll know the figure before booking.
What we need to know
A little information up front helps. It helps to include:
- The type of building and roof, such as pitched or flat
- When you need the report by
- Any stains, drips or damp patches you’ve seen indoors
- Whether there’s a loft hatch, a shared roof or tricky access
We survey roofs on any day of the week. To arrange a day that suits you, ring 07833 053749 or email us with the address and the days you’d prefer.
Leave it or get it looked at?
A survey can show whether a whole new roof is needed or whether the problems are in a few places. Sometimes a few details are to blame, and sometimes the covering has simply had its day. Our report gives you the evidence to discuss with a roofer. Behind a London parapet, a blocked gutter can sit full of water without anyone seeing it. By the time a ceiling stains, the timbers underneath may have been wet for a while.
Thermal imaging and drone inspection (where it applies) come with the Premium Survey, from £400 inc. VAT. We’ll tell you which package suits the questions you have.
Why us?
- Two decades and more of roof surveys
- Thermal imaging and drones used where they help
- Weekday and weekend surveys
- Package prices that include VAT
Read our cost guide and two real surveys.
Different roofs, different checks
Single-ply membranes
Single-ply membranes can be damaged by foot traffic and equipment on the roof. Any tears, punctures or loose membrane are recorded with photos.
Felt and built-up roofs
Built-up felt is one of the most common flat roof coverings on extensions, garages and dormers. We look for blistering, cracking, split laps and worn mineral surfacing.
Flat roof surveys around Lisson Grove
Welsh slate on Victorian and Edwardian terraces is a familiar sight across inner London. Many have butterfly roofs draining to a central valley gutter, with parapet walls and gutters hidden behind them. Lead flashings, party-wall upstands and shared chimney stacks are typical of these houses, if yours is one of them. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises. About 0.4 miles north-east lies Winfield House, a reminder of how long the area around Lisson Grove has been built on. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead.
If you own a rental within reach of London Marylebone station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. If you run a hotel or guest house in or near Lisson Grove, a roof problem can mean rooms out of use, so it is worth knowing the roof’s condition.
Lisson Grove is about 1 mile north-west of City of Westminster, in Greater London. In Lisson Grove, as across Greater London, every roof gets the same careful survey. We cover towns and villages across Greater London, large and small.
Surveys in NW8, W1H and W2 work the same way as everywhere else we cover. We offer flat roof surveys to properties on Hall Road, Park Road and Lodge Road. Being close to the A5 and A40, Lisson Grove is simple for us to get to. Neighbouring places we cover for flat roof surveys include Paddington Green (1 mile south-west), Paddington (1 mile south), Little Venice (1 mile south-west), Connaught Village (1 mile south) and St John's Wood (1 mile north). Larger places within reach include London (4 miles south-east), Shoreditch (4 miles east), Walthamstow (8 miles north-east), Hoxton (4 miles east), Whitechapel (4 miles east) and Ruislip (11 miles west).
Local landmarks in Lisson Grove
Around Lisson Grove, our work takes us to homes and buildings near RIBA Library, St John's Wood Art School and Regent's Park, among other places. Lisson Grove has its own railway station: London Marylebone station. A little further out are Montfichet's Tower (3 miles east) and Maida Vale Hospital for Nervous Diseases (0.5 miles west). Green spaces nearby include The Long Water and Greville Place nature reserve.