Greater London · London and the South East
Flat roof survey in Pinner, Greater London
Flat roof surveys in Pinner from an independent, experienced roof surveyor. Over 5,000 surveys and 20+ years behind us.
- Ponding water that doesn’t drain away
- Failed seals around rooflight kerbs
- Loose or cracked edge trims
Flat roof surveys in Pinner: local notes
Outer London has a good many Victorian and Edwardian terraces with slate roofs, but also a great many interwar semis, often with hipped roofs in clay or concrete tiles. Bay roofs, hip ridges and dormers from later loft conversions are the details that set these houses apart. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. The wider area around Pinner has a long history of building, with Headstone Manor about 1.5 miles east. Older homes in the wider area often have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years.
Take an older house close to Christian Science 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. Anyone responsible for a site like West Lodge Primary School will know that large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Pinner is about 1 mile north-east of Ruislip, in Greater London. We survey roofs in Pinner and the rest of Greater London. Our Greater London coverage includes Pinner and the places around it. We also survey roofs in London.
Here we cover the HA5 postcode area for flat roof surveys. You’ll find streets such as Love Lane, Tudor Road and Marsh Road. We also cover the places around Pinner: Pinner Green (1 mile north-west), Eastcote (1 mile south), North Harrow (1 mile south-east), Roxbourne (1 mile south) and Rayners Lane (2 miles south-east). Within a short drive, we also cover London (14 miles south-east), City of Westminster (12 miles south-east), Marylebone (12 miles south-east), Kensington (10 miles south-east), St Pancras (13 miles east) and Shoreditch (14 miles east).
Landmarks near Pinner
In Pinner, that means homes and buildings near Pinner High School, Heathfield School and The Oddfellows Arms. The nearest railway station is Hatch End station, about 1.4 miles north-east of the centre. Other landmarks nearby include Northwood and Pinner Cottage Hospital (1.3 miles north-west) and St. George's Shopping Centre (2.3 miles east). For a walk, there’s Horse Shoe Bay and Northala Fields.
About our flat roof survey in Pinner
We inspect a flat roof from wherever it can safely be seen: from the roof itself where that’s safe, from windows and nearby vantage points, and from inside where there is access. 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 you know exactly what was covered. We are often asked to look into pools of water lying on the roof and damaged trims at the roof edge, across mastic asphalt, single-ply membranes and upstands and outlets.
Commercial and residential blocks across London often have big flat roofs with plant, rooflights and access walkways. Each pipe, upstand and fixing through the covering is a possible weak point. In Pinner, 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.
With the Standard Survey, you also get moisture detection, a structural check and a follow-up consultation. The Premium Survey goes further, with thermal imaging, drone inspection where it applies, structural analysis and an in-person consultation.
- Where
- Pinner (HA5)
- Wider area
- Greater London
- Prices
- From £150 inc. VAT
- Your report
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Cover
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Tips that help
There is plenty you can do without going near the roof. Here’s what helps most:
- Limit foot traffic on the covering
- Keep clear of rooflights and fragile roof sheets
- Have the roof looked at again after a severe storm
- Note any new marks on ceilings beneath the roof
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. Water still lying a day or two later is worth getting looked at.
What you can safely check yourself
A lot can be seen from ground level. With binoculars, look for slipped or missing slates and tiles, gaps along the ridge and leaning chimneys. Never climb onto the roof to look.
Inside, the loft is a good place to look, with care. Use a torch and stay on the joists or boards, and look for staining, damp timber or daylight coming through.
How the survey works
It helps to start with what’s prompted the survey: a purchase, a leak, a storm, new work or simply peace of mind. It helps us focus on what matters most to you. The visit typically takes about 1–2 hours on an ordinary house, and longer for a large or complex roof. Surveys in Pinner can be booked for any day of the week. London parking is often by permit or pay-and-display, so it helps to know what’s near you, and to clear a path to the loft hatch. A back bedroom window can be the best vantage point for a rear addition, so we may ask to use one.
- First we go through the roof, what’s beneath it and any problems so far.
- The roof is viewed from safe positions, including the roof itself where that is safe.
- We check the covering for splits, blisters, ponding and wear.
- Upstands, outlets, edge trims and rooflights are checked and photographed.
- The report, with photographs and recommendations, comes to you by email.
Before we arrive
- If you’re buying, check with the agent that we can get in
- Check we can get to the back of the property
- Make a note of anything you’d like us to look at
Getting a price
If you are buying, it helps to book soon after your offer is accepted, so you have the findings in time to act on them before you exchange. Otherwise, simply call 07833 053749 or email us whenever suits you.
Related advice
Prices for flat roof surveys in Pinner
Not every roof costs the same to survey, and it comes down to:
- Any need for thermal images or a drone flight
- How many separate roofs there are, such as extensions, dormers and garages
- Whether you choose the Basic, Standard or Premium Survey
- Commercial roofs and larger buildings
Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. The price is confirmed before you book.
Helping us price your survey
To price your survey accurately, we will ask about:
- Dates you’re working to, such as exchange
- What kind of property and roof it is
- Pictures from the garden or a window, if you have them
- Any stains, drips or damp patches you’ve seen indoors
Unsure which package suits your roof? The easiest way is to call 07833 053749 or drop us an email and describe the roof and what’s worrying you. We’ll talk you through the options and what they cost.
Towns and villages near Pinner
What else we do in Pinner
Why it is worth a survey now in Pinner
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. The report sets out what we found, so you can make that decision with a roofer. Blocked gutters and hoppers on London houses overflow and soak brickwork, which can lead to damp inside. A blocked outlet ignored for a winter or two can mean damp walls inside.
One thing that affects the price is the package: Basic from £150, Standard from £250 or Premium from £400, all inc. VAT. The roof’s size, height and access matter as well.
Why book us in Pinner
- Prices that include VAT
- Thermal imaging and drone inspection where they help
- Independent findings on the roof’s condition
- We hold a CAA Flyer ID and Operator ID
Common roof problems in Pinner
Flat roofs swing between hot and cold more than most parts of a building. 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.
Signs worth acting on include:
- Signs of deflection in the roof deck
- Blocked or damaged outlets
- Damaged trims at the roof edge
- Water getting in at rooflights
Shop and office owners around St. George's Shopping Centre may find that outlets and upstands on commercial flat roofs are the places to check before trouble starts.
Before you book anyone
- Whether the loft is part of the inspection
- Which limits apply to the survey
- Their insurance cover
- Whether VAT is added on top
FAQs for Pinner
Will parking be an issue for a roof survey in Pinner?
Typically it is manageable with a little notice. Tell us what parking is available nearby, and the visit is planned around it.
Does a conservation area affect roof work in Pinner?
We cannot confirm that for you, but Historic England’s list and your council can. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
What if it rains on the day?
It depends on the weather and the survey. In strong wind or heavy rain, a drone can’t fly and access may not be safe, so we’d move the date with you.
Is it a structural engineer’s report?
No. We note visible signs such as sagging or deflection, but we’re not structural engineers and do not carry out calculations. Where an engineer is needed, we say so in the report.
Will the survey show why my flat roof is leaking?
We check the covering and every detail where leaks commonly start, recording anything that could let water through. Where the source is not obvious, a roof leak investigation or electronic leak detection may be the next step.
What will the report tell me?
It works through the roof part by part, in writing and with photos, and ends with what we recommend. Points are put in order of urgency where relevant.
What do I do with the report?
The report comes by email, and what you do next is up to you: use it with a seller, an insurer, a roofer or a managing agent.