Greater London · London and the South East
Flat Roof Survey in New Barnet
Surveys of flat roofs on homes, extensions and commercial buildings for New Barnet and the rest of Greater London. Surveys run on weekdays and at weekends.
- Blocked or damaged outlets
- Water getting in at rooflights
- Cracked or split membrane
About our flat roof survey in New Barnet
Each type of flat roof has its own weak points. Felt can blister and crack, asphalt can craze and split, EPDM seams and laps can lift, and GRP can crack where boards meet or at the trims. On PVC and TPO single-ply roofs, we look closely at the welded laps, edges and fixings. Knowing what you have and how it’s doing helps you plan what comes next. We survey upstands and outlets, EPDM rubber and single-ply membranes, and common reasons people get in touch are blistering in felt or asphalt and cracked or split membrane.
Offices, shops and blocks of flats across London often have large flat roofs with plant, rooflights and walkways. Each pipe, upstand and fixing through the covering is a possible weak point. In New Barnet, 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.
Report times depend on the survey you book: Basic within 48 hours, Standard in 24–48 hours and Premium the same day.
- Where
- New Barnet (EN5, EN4, N20)
- Wider area
- Greater London
- Prices
- From £150 inc. VAT
- Your report
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Flat roofs in New Barnet
About 3.8 miles north lies Wyllyotts Manor, a reminder of how long the area around New Barnet has been built on. Older homes in the wider area often have features worth a closer look, like 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. Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, frequently with hipped roofs of clay or concrete tiles. On a semi of that age, the small roofs over the bays, the hip tiles and any later dormer each need their own look. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere.
For landlords with property near New Barnet station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. Take an older house close to Holy Trinity Lyonsdown: later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear. For businesses in and around places like Spires Shopping Centre, a flat roof over a business is out of sight and out of mind until it leaks.
New Barnet is about 1 mile east of Barnet, in Greater London. Roofs in New Barnet get the same thorough look as anywhere else in Greater London. We cover towns and villages across Greater London, from the larger towns to small villages. Our London page covers surveys nearby.
Surveys in EN5, EN4 and N20 are booked the same way as anywhere else. Local streets include York Road, Park Road and Henry Road. Neighbouring places we cover for flat roof surveys include Barnet (1 mile west), Cockfosters (1 mile north-east), East Barnet (1 mile south-east), Underhill (1 mile west) and Whetstone (1 mile south). Within a short drive, we also cover London (11 miles south), City of Westminster (9 miles south), Marylebone (9 miles south), Kensington (10 miles south), St Pancras (8 miles south) and Shoreditch (9 miles south-east).
Around New Barnet
In New Barnet, that means homes and buildings near Trent School Cockfosters, East Barnet School and The Alexandra pub. There’s a railway station in New Barnet itself: New Barnet station. Well-known places in the area include Spires Shopping Centre (1.6 miles north-west) and Francis Skaryna Belarusian Library and Museum (2 miles south). Green spaces nearby include Greenhill Gardens and Darland's Lake.
For landlords and managing agents
If you own several properties, surveys can be booked for more than one address. To discuss a number of properties, ring 07833 053749 or email us with the addresses.
Businesses and commercial landlords can book us too. Larger roofs take longer, and they’re priced for the size.
Places near New Barnet
What else we do in New Barnet
Your questions about flat roof surveys in New Barnet
Is New Barnet in the area you cover?
Yes, New Barnet is one of the places we work. The survey and report are the same in New Barnet as anywhere else, and visits run on weekdays and weekends.
How do I find out if my home in New Barnet is listed?
The council and Historic England’s list are the places to check. It is worth checking before planning roof work, as both can affect what’s allowed.
Does the report include photos?
Yes. We photograph the roof as we go, and they go into the written report.
Can you find where water is getting through my flat roof?
The survey covers the covering and all the details where leaks normally begin, recording anything that could let water through. Where the source isn’t obvious, a roof leak investigation or electronic leak detection may be the next step.
How long is the visit?
That depends on the size and shape of the roof; most visits take about one to two hours for a small flat roof at home, and longer for a large commercial one. The report is sent afterwards by email.
What insurance do you have?
Every survey is covered by professional indemnity and public liability insurance.
Do I have to be there for the survey?
Someone needs to let us in if we are looking inside or in the loft. Access is agreed with you when you book.
What you can safely check yourself
Inside, the loft is a good place to look, with care. Take a torch and only step on boards or joists, and look for staining, damp timber or daylight coming through.
A lot can be seen from the ground. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Please do not climb up for a closer look.
Practical tips
Getting the most from a flat roof survey starts before we arrive and carries on afterwards. Tips:
- Never stand on rooflights or fragile sheeting
- Keep outlets clear of leaves and moss
- Make sure new fixings through the roof are properly sealed
- Check from a window for ponding after heavy rain
For landlords and building managers, the report is a dated record of the roof’s condition. It helps when planning maintenance budgets, and it makes changes easy to spot at the next survey.
Try not to let a flat roof become a walkway. If access is needed, boards or walkways help protect the covering, and to keep well clear of rooflights and fragile sheeting.
The survey, step by step
Photographs are taken throughout the visit, so you can see in the report what we found and where. We take close-ups from wherever is safe, including by drone where it’s applicable and the weather allows. Most surveys take about 1–2 hours for a small flat roof at home, and longer for a large commercial one. For a visit in New Barnet, parking and access are the things to plan: let us know about parking, the floor the property is on, any shared entrance and loft access. We then look at what can be seen safely from ground level, windows, the loft and, where it’s safe, the roof itself.
- We start with the details: the address, the roof’s use and any leaks or stains.
- The roof is inspected from safe viewpoints, and from the roof itself where that is safe.
- The covering, falls, upstands, outlets, edge trims and rooflights are checked and photographed.
- Where there’s safe access, we check the ceilings and spaces below for signs of water.
- We send a written report with photos, the defects we found and what we recommend.
How to prepare
- Note where any stains or damp appear
- Find any records of previous roof work
- Make sure pets are kept safely away
How to book
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, call 07833 053749 or email us.
Read more
Why it’s worth a survey now in New Barnet
Most flat roofs are out of sight, so they’re easy to forget. Owners often learn the roof is at the end of its life only when it leaks. Regular surveys mean it won’t come as a surprise. London’s older roofs frequently have bitumen felt underlay or none at all, so once the slates or flashings let water past, little stops it reaching ceilings. Left alone, that means wet timbers and plaster, which is a far bigger job than the roof fault itself.
Prices start from £150, including VAT. The final price depends on how big and how high the roof is, access and the package you choose.
Why us?
- Visits on any day of the week
- CAA-registered drone operator (Flyer ID and Operator ID)
- Independent findings on the roof’s condition
- Customer satisfaction of 98%
See our cost guide or two real surveys.
What affects the price in New Barnet
When we price a survey, we consider:
- The roof’s overall size
- Features like valleys, chimneys, dormers and parapets
- How many separate roofs there are, like extensions, dormers and garages
- How tall the building is and how easy the roof is to see
Bigger, taller and commercial roofs take more time to survey, so they’re priced to match. You’ll know the figure before booking.
Getting in touch
Getting the details right at the start saves time. It helps to include:
- The kind of building and roof involved
- What made you get in touch
- Whether there’s a loft hatch, a shared roof or tricky access
- The address and postcode of the property
We confirm the exact price before you book, so you know the cost up front. Prices start from £150, including VAT. For a price for your roof, call 07833 053749 or use the contact form.