Greater London · London and the South East
North Harrow Flat Roof Survey
Independent flat roof surveys in North Harrow. More than 5,000 surveys completed across London and South East England.
- Outlets that hold water back
- Dips that suggest the deck is deflecting
- Splits and cracks in the covering
What we do, step by step
Where it is relevant and can be reached safely, the roof space is checked as well as the outside. Inside, we look for staining, damp, gaps and signs of movement, as far as the space allows. All in, the survey usually takes about one to two hours for an extension, garage or dormer roof, and around 3–4 hours for a commercial flat roof. Many London properties are flats or terraces with no side access, so rear slopes are viewed from windows, the loft or, where a flight is allowed, by drone. Mention any building rules, key holders or managing agents as you book.
- You let us know about the roof, its covering if you know it, and any leaks.
- We check the roof from wherever it can safely be seen.
- The covering, falls, upstands, outlets, edge trims and rooflights are checked and photographed.
- We check the rooms or spaces under the roof for staining where we can reach them.
- We send a written report with photos, the defects we found and what we recommend.
Before we arrive
- Gather any invoices or paperwork from past roof work
- Note where any stains or damp appear
- Keep pets out of the way during the survey
Booking a survey
Not sure which survey you need? The easiest way is to call 07833 053749 or use the contact form and describe the roof and what’s worrying you. We will talk you through the options and what they cost.
Advice
Flat roof survey in North Harrow: what you get
Offices, shops, industrial units and blocks of flats often sit under large flat roofs. On a roof like this, a survey shows where the covering is wearing, where water is ponding and which outlets need attention. We record the condition with photographs so work can be planned and budgeted. We quote commercial roofs on their size and how they’re reached, so it helps if you phone 07833 053749 or use the contact form with the address and a rough idea of the roof area. If you’re worried about pools of water lying on the roof and blisters and bubbles in the covering, we can find out what’s behind it, on felt flat roofs, single-ply membranes and EPDM rubber alike.
Water getting through a flat roof in London can travel under the covering and appear some way from the hole. Upstands against parapets, outlets and the edge where flat meets pitched are common entry points. In a converted house in North Harrow, the roof above may belong to the building rather than one flat.
The report doesn’t just list problems. It explains what we found, why it matters and what we recommend, so you can decide what to do next.
- Where
- North Harrow (HA2, HA1, HA5)
- Wider area
- Greater London
- Prices
- From £150 inc. VAT
- Your report
- Written, with photos, emailed to you
- When we survey
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Updated
- 27 October 2026
Roof by roof
Rooflights and upstands
We don’t walk on rooflights or fragile sheeting, and we treat older rooflights as fragile. We view them from safe positions and photograph what we see.
Felt and built-up roofs
The edges and upstands of a felt roof are typically where trouble starts. We check each one and photograph any that have split or pulled away.
DIY checks: what’s safe
What you cannot do safely is get up close. Roofs are fragile and slippery, and a fall can be serious. That’s where a survey comes in, using safe viewpoints and a drone where it applies.
A lot can be seen from the ground. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Never climb onto the roof to look.
When to book a survey in North Harrow
A flat roof lies open to sun, rain and frost, and water drains off it slowly. In time, the covering dries out, cracks and loosens at its edges and laps. Most people book a survey after a leak, before buying, or when they think the roof is getting old.
Most people get in touch when they’ve noticed one of these:
- Outlets choked with leaves and silt
- Loose or cracked edge trims
- Signs of deflection in the roof deck
- Upstands pulling away from walls
Shop and office owners around St. George's Shopping Centre may find that flat roofs over shops and units are easy to forget until water comes through a ceiling.
Before you book anyone
- Their report turnaround times
- Whether the roof space is looked at, where there is one
- Their track record with similar roofs
- Whether VAT is in the quoted price
North Harrow questions
How do I find out if my home in North Harrow is listed?
The council and Historic England’s list are the places to check. Either can affect what roof work is allowed, so it is worth checking before planning any.
Do you carry out roof surveys in North Harrow?
Yes, North Harrow is within the area we cover. We survey roofs across London and South East England. Just ring 07833 053749 or drop us an email and let us know about the property, and we’ll talk through which survey suits.
Which days do you carry out surveys?
We carry out surveys on any day of the week. To find a day that suits you, call 07833 053749 or send us an email.
How do I arrange a flat roof survey in North Harrow?
Simply ring 07833 053749 or use the contact form. After a few questions, we confirm the price and fix a day.
Will I get photos?
Yes. We photograph the roof as we go, and the report uses them to show each finding.
What’s in the report?
Written findings with photos, covering the condition of the flat roof, the defects we found and what we recommend. The Standard Survey adds moisture detection and a structural check, and the Premium Survey adds thermal imaging, drone inspection where applicable and structural analysis.
Will this cover the whole house?
No. It is a closer look at the flat roof, not a survey of the whole property. It works alongside a RICS home survey, not instead of one, and it isn’t a structural engineer’s report.
What else we do in North Harrow
Landlords, agents and block managers in North Harrow
Managing agents and residents’ management companies use roof surveys to plan maintenance. Recommendations are set out with the most urgent first where relevant, which helps when budgeting.
Landlords, agents and building managers in North Harrow and across Greater London can book any of our surveys. For a price for a let property or a block, phone 07833 053749 or send us an email.
Local flat roofs in North Harrow
Outer London has lots of 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. Historic houses such as Headstone Manor, about 0.8 miles north-east, show how far back building in the area around North Harrow goes. If your home is one of the older ones, expect a mix of original materials and later repairs on the roof.
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. If you live in an older home near Church of St Alban, the flat roofs on later extensions tend to wear out long before the main roof.
North Harrow is about 1 mile north-west of Harrow, in Greater London. We survey roofs in North Harrow and the rest of Greater London, as part of our work across London and South East England. North Harrow is one of the towns and villages in Greater London where we work. You can also see our page for London.
We cover every part of HA2, HA1 and HA5 for flat roof surveys. You will find streets like The Avenue, Pinner Road and Durham Road. We also cover the places around North Harrow: Rayners Lane (1 mile south-west), Harrow (1 mile south-east), Roxbourne (1 mile south-west), Eastcote (1 mile west) and Greenhill (1 mile east). Larger places within reach include London (13 miles south-east), City of Westminster (10 miles south-east), Marylebone (10 miles south-east), Kensington (9 miles south-east), St Pancras (11 miles east) and Shoreditch (13 miles east).
Landmarks near North Harrow
In North Harrow, that means homes and buildings near Nower Hill High School, Heathfield School and Headstone Manor Recreation Ground, among other places. North Harrow’s nearest station is Harrow-on-the-Hill station, about 1.2 miles east. A little further out are St. George's Shopping Centre (1 mile east) and Hilfield Castle (5 miles north). Not far away are Northala Fields and Islip Manor Meadows.
Before and after the survey
A few practical points come up again and again on our surveys. They’re worth knowing whatever the roof:
- Clear roof outlets and gutters each autumn
- Note where water lies after a downpour
- Keep people off the roof unless they need to be there
- Have the roof looked at again after a severe storm
If anything in the report is not clear, just ask us. The Standard Survey includes a follow-up consultation and the Premium Survey an in-person consultation, so you can talk the findings through.
Book a survey every few years, and again after new fixings, units or rooflights go in. You’ll spot changes early and have a record to look back on.