City of London · London and the South East
Flat roof survey in City of London
Not sure what state the flat roof is in? We carry out flat roof surveys in City of London, with plain-English findings.
- Splits, cracks and crazing
- Edge trims that have lifted or split
- Gaps at upstands and abutments
How a flat roof survey works in City of London
Each flat roof is looked at from the safest viewpoints we have: on the roof where it is safe, from windows and higher ground, and from the rooms below where we can reach them. We do not walk on fragile rooflights or fragile roof sheeting. If part of the roof can’t be seen or reached safely, the report says so, so the limits of the survey are clear. We survey EPDM rubber, GRP fibreglass and upstands and outlets, and common reasons people get in touch are splits and cracks in the covering and gaps at upstands and abutments.
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. Which one is on a roof in City of London shapes how it’s checked. Many older flat roofs are felt or asphalt, and many newer ones EPDM rubber or GRP.
The Standard Survey adds moisture detection, a structural check and a follow-up consultation. The Premium Survey adds thermal imaging, drone inspection where applicable, structural analysis and an in-person consultation.
- Where
- City of London (EC4V, EC1A, EC2M, EC2Y)
- Region
- City of London
- Prices
- From £150 inc. VAT
- Report
- Emailed report with photos and recommendations
- Appointments
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Why it is worth a survey now in City of London
Waiting for a stain inside means the water has already got through the layers. We can pick up worn covering and failing details sooner, while there is still time to plan the work. In City of London, as in much of London, water from a roof defect can reach a neighbour’s home as easily as yours: failed flashings and blocked valley gutters can send water into more than one home. Finding it early keeps the work smaller.
Flat roof survey starts from £150, including VAT. The final price depends on the size and height of the roof, how it can safely be seen and the package you choose.
What you get with us
- Prices that include VAT
- Drone and thermal imaging surveys available
- Weekday and weekend surveys
- Over 5,000 surveys carried out
Take a look at what a roof survey costs or two real surveys.
Tips from our surveys
You do not need to be a roofer to help. What helps most:
- Limit foot traffic on the covering
- Never stand on rooflights or fragile sheeting
- Look for standing water a day after rain
- Watch the ceilings below the flat roof for stains
If you are buying, the report gives you something specific to take back to the seller or agent. You might ask for work to be done before completion, or discuss the price, depending on the findings.
Clear leaves and silt from outlets and gutters, above all in autumn. Water that can drain away does far less harm than water that sits.
How the survey changes by roof type
EPDM rubber
Rubber roofs can shrink back from their edges or lift where the adhesive has failed. Any we find are noted and photographed.
Mastic asphalt
Asphalt roofs are common on older flats, walkways and commercial buildings. The survey checks for crazing, cracking, blistering and splits where the asphalt turns up the walls.
Flat and commercial roofs around City of London
The wider area around City of London has a long history of building, with Mansion House about 0.2 miles south-east. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs. Inner London’s Victorian and Edwardian terraces frequently have Welsh slate roofs. Behind many of their parapets sit butterfly roofs and valley gutters that can’t be seen from the pavement. Shared chimney stacks, party-wall upstands and lead work come with this kind of house. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
A roof leak in a hotel or guest house around City of London means lost rooms as well as repairs, so it pays to find faults before guests do. If you look after a shop, office or commercial unit, for example near Gabriel's Wharf, outlets and upstands on commercial flat roofs are the places to check before trouble starts.
City of London is about 1 mile north of London. We carry out flat roof surveys in City of London for houses, flats, blocks and commercial buildings, with a written report and photographs every time.
All of EC4V, EC1A, EC2M and EC2Y is covered for flat roof surveys, from the main roads to the quietest streets. We cover properties on Aldermanbury Square, Monkwell Square and Paternoster Square and the roads around them. City of London is on the A1 and A3, which makes it straightforward to reach. Neighbouring places we cover for flat roof surveys include Barbican Estate (1 mile north), Bishopsgate (1 mile east), Finsbury (1 mile north), Aldgate (1 mile east) and St Luke's (1 mile north).
Local landmarks in City of London
In City of London, that means homes and buildings near St Mary-at-Hill, Prior Weston Primary School and Children's Centre and Golden Fleece pub and the streets around them. Other local landmarks include Central Foundation Boys' School (0.8 miles north), Barts Health Archives (less than half a mile north-west) and St Alphage Garden (within half a mile north). There is a railway station in City of London itself: London Cannon Street station. Well-known places in the area include Gabriel's Wharf (0.8 miles south-west) and London Mithraeum (within half a mile south). Green spaces nearby include St. James's Park Lake and Barnsbury Wood.
DIY checks: what’s safe
Watch the gutters in a downpour, from a window or the ground. Water spilling over the edge can be a sign of a blockage or a gutter that has dropped.
Your own check is a good start, but it is not a survey. From the ground, valleys, flashings and the backs of chimneys are frequently out of sight.
Nearby places to City of London
More services for City of London
City of London questions
Is parking a problem for a survey in City of London?
London parking needs a little planning, so let us know about permits, bays or a driveway as you book. The visit is then planned around what’s available.
Is my home in City of London listed or in a conservation area?
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.
Do I have to be there for the survey?
Not necessarily. An outside-only look can be arranged beforehand, but the loft and any rooms with damp need someone to let us in.
What happens next?
You receive the written report by email, with photographs and recommendations. It’s yours to share with a seller, insurer, roofer or managing agent, whichever applies.
How much does a flat roof survey cost in City of London?
Our price is from £150, including VAT. Our Basic Survey starts from £150, the Standard Survey from £250 and the Premium Survey from £400, all with VAT included.
Do you go up onto the roof?
It depends on what’s safe: the roof itself where that is safe, plus windows, vantage points and the rooms below. Fragile rooflights and fragile sheets are never walked on.
Which flat roof coverings do you cover?
We cover the main flat roof coverings: felt, asphalt, EPDM, GRP and single-ply. The report names the covering and explains its condition.
How it works
It helps to start with what’s prompted the survey: buying, a leak, storm damage, new work or just wanting to know where things stand. It helps us focus on what matters most to you. The visit usually takes about 1–2 hours for a house, and more on a big or complicated roof. From the street, a London terrace normally shows only its front slope or parapet, so in City of London 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 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.
- The roof is inspected from every safe viewpoint, without walking 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
- Check the loft hatch can be reached
- Unlock side gates and any roof access doors
- Let us know about parking near the property
Booking a survey
Getting a price is simple: just phone 07833 053749 or email us, let us know about the property and we’ll explain which survey suits. The price is agreed up front.
Advice
Common roof problems in City of London
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. Coverings that have hardened with age tend to suffer most.
Problems we come across frequently include:
- Failed upstands where the roof meets a wall
- Cracked or split membrane
- Ponding water that does not drain away
- Edge trims that have lifted or split
Landlords with a home close to London Cannon Street station may find that flat roofs over rear additions and dormers in rented property are worth checking between tenancies.
Questions to ask before you book
- When you will get the report
- Will the report include photos?
- What the survey will not cover
- Is there a chance to talk the report through?