Hertfordshire · London and the South East
Flat roof survey in Tonwell, Hertfordshire
Not sure what state the flat roof is in? We carry out flat roof surveys in Tonwell and across Hertfordshire.
- Standing water left after rain
- Cracked or split membrane
- Raised blisters across the surface
Flat roof surveys for homes and businesses in Tonwell
Water through a flat roof does not always come in where the stain is. It may start at a split, a lifted seam or a failed upstand well away from the damp patch. That’s why we check every detail across the roof, not only the area above the stain, with photographs of anything that could be letting water in. Whoever carries out the work then has a clear starting point. If you are worried about edge trims that have lifted or split and blocked or damaged outlets, we can find out what’s behind it.
Flat roofs on exposed homes in small places like Tonwell take more wind and rain, so edges, upstands and laps take a beating. Felt roofs, which often last around 15–20 years, typically show it first. Rubber and GRP last longer, though trims and joints still need a look. On an exposed roof, the edges tend to go first.
The report does not just list problems. It explains what we found, why it matters and what we recommend, so you can decide what to do next.

- Where
- Tonwell (SG12)
- Region
- Hertfordshire
- Prices
- From £150 inc. VAT
- Report
- Emailed report with photos and recommendations
- Survey days
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Flat roofs in Tonwell
About 4.6 miles north-west lies Aston Bury, a reminder of how long the area around Tonwell has been built on. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs. Older houses in the South East often have slate or clay tile roofs, while many later estates have concrete tiles. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere.
For site and facilities teams at buildings such as Tonwell St Mary's Church of England Primary School, ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Tonwell is about 2 miles north-west of Ware, in Hertfordshire. Bookings from Tonwell are handled just like any other: a call or an email, a price, then a date. Tonwell is one of the places in Hertfordshire we cover. London is in our area too.
Every address in SG12 is within our area for flat roof surveys. You will find streets like Ware Road, Temple Lane and Bourne Honour, all of which we cover. Nearby, we also carry out flat roof surveys in Chapmore End (1 mile south), Sacombe (1 mile north), Thundridge (2 miles east), Wadesmill (2 miles east) and Sacombe Green (2 miles north). We also work in nearby towns such as Stevenage (7 miles north-west), St Albans (13 miles south-west), Bishop's Stortford (10 miles east), Welwyn Garden City (6 miles south-west), Harpenden (12 miles west) and Hitchin (12 miles north-west).
Landmarks near Tonwell
Locally, jobs take us to homes and businesses close to Robin Hood & Little John pub and Chauncy School, among other places. The nearest railway station is Ware station, roughly 2.5 miles south-east. Other landmarks nearby include Hertford County Hospital (3 miles south) and Barrowfield (2.7 miles south). Green spaces nearby include King's Meads.
How the survey changes by roof type
EPDM rubber
EPDM frequently lasts 30 to 50 years, but it relies on its seams, trims and upstands being well finished. Those details are where we focus.
Rooflights and upstands
We do not walk on rooflights or fragile sheeting, and we treat older rooflights as fragile. They’re inspected from safe positions and recorded with photographs.
Also near Tonwell
More services for Tonwell
Signs you need a flat roof survey in Tonwell
People go onto flat roofs for all sorts of reasons: cleaning windows, fitting aerials or air conditioning, or clearing gutters. Each visit can damage a covering not made for regular foot traffic. Fixings added through the covering often start leaks too.
Here are some of the things we see frequently:
- A sagging deck under the covering
- Outlets choked with leaves and silt
- Failed seals around rooflight kerbs
- Splits, cracks and crazing
Landlords with a home close to Ware station may find that flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Before booking any roof surveyor
- Whether VAT is added on top
- What exactly goes into their report
- Are they insured for the work?
- How they’ll see the roof: from the ground, the loft, the roof or by drone
What you can safely check yourself
It helps to keep a record: when leaks happen, ground-level photos and any past roof work. Share it with us when booking.
Watch the gutters in a downpour, from a window or the ground. Overflowing water can be a sign of a blockage or a gutter that has dropped.
FAQs for Tonwell
Does a conservation area affect roof work in Tonwell?
We cannot confirm that for you, but Historic England’s list and your council can. Both listing and conservation areas can limit changes of roofing material, and councils can also use Article 4 directions.
Is Tonwell within the area you cover?
Yes, Tonwell is on our map. Villages and rural addresses get the same survey as a town house, with the route planned beforehand.
Will you walk on the flat roof?
Where it is safe, the roof is inspected from the roof itself. If not, we use safe viewpoints and look inside, and the report says if any part couldn’t be seen. Fragile surfaces are never walked on.
Can you survey any kind of flat roof?
We cover the main flat roof coverings: felt, asphalt, EPDM, GRP and single-ply. We record what the covering is and how it is holding up.
Can you find where water is getting through my flat roof?
We check the whole roof, since water can travel before it shows inside. Every split, lap, upstand, outlet and rooflight we can see is looked at. If the cause can’t be seen, we’ll say so and suggest what would help.
Will you fly a drone over my roof?
Yes, where it is applicable. Whether we can fly on the day depends on the weather and the airspace rules. We’re a CAA-registered drone operator.
How many years has my flat roof got left?
A precise figure is not something we give, because it depends on upkeep, weather and how the roof was laid. We describe the condition and say which work is urgent and which can wait.
Leave it or get it looked at?
Most flat roofs are out of sight, so they’re easy to forget. Many owners only find out a roof is worn out when water comes through. Regular surveys mean it will not come as a surprise. For older village homes like those around Tonwell, the right replacement materials aren’t always easy to find quickly. Spotting a problem early leaves room to find them.
Simple, low roofs take less time to survey than tall or complicated ones, and the package you pick makes a difference too. The price is always agreed first.
What you get with us
- Thermal imaging and drones used where they help
- More than 5,000 surveys completed
- 20+ years’ experience
- 98% of clients satisfied
Take a look at what a roof survey costs and our case studies.
How it works
Time on site depends on the size and shape of the roof, but as a rough guide the survey takes between one and two hours on an ordinary house, though large, tall or awkward roofs take more time. You are welcome to ask questions while we are there. Older rural homes like those around Tonwell can have a main roof, lower lean-to roofs and outbuildings all joined together. Each part is looked at from wherever it can safely be seen, and anything we can’t see is noted.
- You send us the address and, for commercial roofs, an idea of the roof’s size.
- Inside, we look for signs of water under the roof where we can reach.
- We view the roof from safe positions and never walk on fragile surfaces.
- We record every defect with a photo and its likely cause.
- The report explains the condition and recommends what to do first.
Preparing for the visit
- Point out any leaks or damp patches
- Have any questions written down, so nothing gets missed
- Make sure pets are kept safely away
How to book
You can call us seven days a week, including Saturdays and Sundays. To book or ask a question, phone 07833 053749 or send us an email.
Advice
Landlord and commercial surveys in Tonwell
Landlords and agents in Tonwell book surveys as well as householders. The report gives you a dated record of the flat roof, with photos.
A roof problem in a let property affects your tenants as well as the building. A survey shows what needs attention, so you can plan the work with less disruption.