Hertfordshire · London and the South East
Flat roof survey in Thorley, Hertfordshire
Find out the condition of the flat roof at your property in Thorley from an independent roof surveyor. We visit on weekdays and at weekends.
- Pools of water lying on the roof
- Raised blisters across the surface
- Damaged trims at the roof edge
Flat roof surveys for homes and businesses in Thorley
Each type of flat roof has its own weak points. Built-up felt tends to blister and crack, asphalt crazes and splits, EPDM can lift at its laps, and GRP can crack at board joints and edge trims. Single-ply PVC and TPO roofs are checked at their welds, edges and fixings. Knowing what you have and how it is doing helps you plan what comes next. Typical surveys look at damaged trims at the roof edge and leaks around rooflights, across felt flat roofs, single-ply membranes and GRP fibreglass.
Older buildings in small places like Thorley may be listed or in a conservation area, which can shape what a new flat roof may look like. Check with the council before planning any change of material. Finding out what state the roof is in gives you the facts to plan with. Listed building consent is needed for changes that affect a listed building’s special interest.
The Standard Survey adds 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.

- Place
- Thorley (CM23)
- Wider area
- Hertfordshire
- Cost
- From £150 inc. VAT
- Report
- A written report with photos, by email
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Common roof problems in Thorley
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.
Common reasons to book include:
- Cracked or split membrane
- Standing water left after rain
- Upstands pulling away from walls
- Blistering in felt or asphalt
If you own a rental within reach of Bishops Stortford station, a flat roof over a rented flat is easy to forget until the tenant reports a leak.
Questions to ask before booking
- Which viewpoints they use to see the roof
- When you’ll get the report
- What experience they bring
- Is VAT included in the price?
Why it is worth a survey now in Thorley
Most flat roofs are out of sight, so they’re easy to forget. Owners frequently learn the roof is at the end of its life only when it leaks. Regular surveys mean it won’t come as a surprise. In a place like Thorley, a barn or garage roof left to fail puts whatever is inside at risk. A quick look before winter can save a lot.
Every price we give includes VAT, and the written report is part of the package. Flat roof survey starts from £150, including VAT. Size, height and access decide where your roof falls.
Why us?
- Surveys on any day of the week
- Package prices that include VAT
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
- A written report with photographs
Take a look at what a roof survey costs and what we found on two real jobs.
Before and after the survey
From years of surveys, a few habits stand out as worth the effort:
- Have the roof looked at again after a severe storm
- Make sure new fixings through the roof are properly sealed
- Check ceilings under the roof for damp patches
- File the paperwork for the roof and any repairs
Questions about the findings are always welcome. Standard Surveys come with a follow-up consultation, and Premium Surveys with an in-person one, so you can talk the findings through.
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.
How we price flat roof surveys
What a survey costs depends on the time and equipment it needs. The main factors are:
- Any need for thermal images or a drone flight
- The package you choose: Basic, Standard or Premium
- The shape of the roof and its details
- Extra roofs, like extensions, dormers or garages
Simple, low roofs take less time to survey than tall or complicated ones, and the package you pick makes a difference too. We will give you the figure before anything is booked.
What we need to know
A little information up front helps. Please include:
- Pictures of the roof from a safe spot, if you have them
- What kind of property and roof it is
- Any marks or damp showing indoors
- Anything about access we should know
We survey roofs on any day of the week. To find a date that works for you, phone 07833 053749 or drop us an email with the address and the days you’d prefer.
Thorley questions
Is Thorley within the area you cover?
Yes, Thorley is on our map. A small place gets exactly the same survey as a big one, with the route planned beforehand.
Do you carry out roof surveys in Thorley?
Yes, Thorley is one of the places we work. The survey and report are the same in Thorley as anywhere else, and visits run on weekdays and weekends.
Do you carry professional indemnity insurance?
We hold professional indemnity and public liability insurance.
What if it rains on the day?
Light rain doesn’t usually stop a survey, and it can even help show where water is getting in. Heavy rain or strong wind can ground a drone and make the roof unsafe, so if conditions are not right we will arrange another day with you.
How do I arrange a flat roof survey in Thorley?
Simply ring 07833 053749 or email us with the address. We will ask a few questions, confirm the price and agree a date.
How much does a flat roof survey cost in Thorley?
Prices start from £150, including VAT. Our Basic Survey starts from £150, the Standard Survey from £250 and the Premium Survey from £400, all inc. VAT.
Should I worry about standing water on my flat roof?
Standing water on a flat roof deserves a closer look. It often means a blocked outlet, poor falls or a dipping deck, and water that sits wears the covering sooner. Our survey notes the ponding and what seems to be causing it.
Towns and villages near Thorley
What else we do in Thorley
How the survey works
Photos are taken throughout the visit, so the report shows exactly what we saw. We take close-ups from wherever is safe, including by drone where it is applicable and the weather allows. A typical visit takes about 1–2 hours for a house, and more on a big or complicated roof. In a hamlet or village like Thorley, a postcode does not always lead to the right gate, so a few directions are welcome. The visit itself is the same as anywhere else.
- You send us the address and, for commercial roofs, an idea of the roof’s size.
- We check the rooms or spaces under the roof for staining where there is access.
- The roof is inspected from every safe viewpoint, without walking on fragile surfaces.
- We record every defect with a photo and its likely cause.
- You get a report setting out the condition and our recommendations, in order of urgency.
How to prepare
- Buyers: confirm access with the estate agent or seller
- Leave side gates unlocked
- Check pets are kept safely away
Booking a survey
If you are buying, it’s useful to book soon after your offer is accepted, so there’s time to use the report before exchange. Otherwise, simply call 07833 053749 or send us an email whenever suits you.
Read more
What a flat roof survey looks like in Thorley
The wider area around Thorley has a long history of building, with Much Hadham Palace about 2.9 miles west. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and a listed home or one in a conservation area may need consent for changes of material. Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles, and flat-roofed additions turn up almost everywhere. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
Take a building like Richard Whittington Primary School: schools and public buildings often have big flat roofs, and their outlets and upstands need regular checks. If you live in an older home near Parish Church of St James the Great, the flat roofs on later extensions tend to wear out long before the main roof.
Thorley is about 1 mile south-west of Bishop's Stortford, in Hertfordshire. Houses, flats, blocks and commercial buildings in Thorley can all book flat roof surveys, with a written report and photographs every time. Across Hertfordshire, we cover Thorley and the places around it. For surveys nearby, see our Chelmsford page.
Here we cover the CM23 postcode area for flat roof surveys. If you’re just outside Thorley, we cover Thorley Street (1 mile east), Spellbrook (1 mile south-east), Bishop's Stortford (1 mile north-east), Little Hallingbury (2 miles south-east) and Allen's Green (2 miles south-west). Within a short drive, we also cover Stevenage (14 miles west), Welwyn Garden City (15 miles west), Hoddesdon (9 miles south-west), Cheshunt (13 miles south-west), Hertford (10 miles west) and Ware (8 miles west).
What’s near Thorley
Locally, jobs take us to homes and businesses close to Coach And Horses Public House and The Bishop's Stortford High School. Thorley’s nearest station is Bishops Stortford station, about 1.5 miles north-east of the centre. A little further out are Bishops Stortford Local History Museum (2.4 miles north) and Moated mound (3 miles north-west). The countryside around Thorley includes Portingbury Hills and Thorley Wash nature reserve.
Checking the roof from ground level
Inside, the loft is a good place to look, with care. Use a torch and stay on the joists or boards, checking for stains, damp wood or chinks of daylight.
Keep a simple record: when leaks happen, ground-level photos and any past roof work. Send it with your enquiry and it will help the survey.