Hertfordshire · London and the South East
Roof leak investigation in Thorley Street, Hertfordshire
Roof leak investigations in Thorley Street from an independent, experienced roof surveyor. Over 5,000 surveys and 20+ years behind us.
- Wet patches high on an inside wall
- Wet patches on loft insulation
- Drips from nail tips in a cold loft
Should I look at the roof myself first?
During heavy rain, look at the gutters from ground level or a window. Overflowing water can be a sign of a blockage or a gutter that has dropped.
After strong wind, take a look from the pavement or garden: pieces of tile or slate on the ground, a gap in the ridge or a lifted flashing are all worth noting. Leave anything above ground level to a survey.
Roof leak investigation in Thorley Street
Our job is to find the likely source and tell you. You get a written report with photographs showing the likely entry point and the route the water is taking, plus recommendations on what needs attention. It gives any roofer a clear brief. We find and report the source, while the repair is a separate matter. Common reasons to book are water marks that spread in wet weather and water through the ceiling under a flat roof, across the roof space, flat roof details and chimney stacks.
Many homes in small places like Thorley Street face open ground, so storms hit ridges, verges and chimneys hard. Damp in old stone, brick or timber walls is slow to dry out, which makes finding the cause quickly worthwhile. A record with photos is useful if you need to show the damage to anyone else.
Report times depend on the survey you book: Basic within 48 hours, Standard in 24–48 hours and Premium the same day.
- Location
- Thorley Street (CM23)
- Wider area
- Hertfordshire
- Price
- From £150 inc. VAT
- Report
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Wind, rain and roofs in Thorley Street
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. The covering and its details give the first clues when tracing where water is coming from. With Much Hadham Palace about 3.6 miles west, Thorley Street sits in an area with a long building history. Older homes in the wider area frequently have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years.
For an older house near a landmark such as Parish Church of St James the Great, lead flashings, valleys and old chimneys are typical places for water to get in. Landlords with a home close to Bishops Stortford station may find that finding the cause of a leak fast keeps a tenant’s home dry and the work focused.
Thorley Street is about 1 mile south of Bishop's Stortford, in Hertfordshire. Whether the building in Thorley Street is a house, a flat or a commercial unit, we can survey the roof. Our area takes in places right across Hertfordshire. We also survey roofs in Chelmsford.
Surveys in CM23 are booked the same way as anywhere else. Nearby, we also carry out roof leak investigations in Thorley (1 mile west), Spellbrook (1 mile south), Little Hallingbury (1 mile south-east), Bishop's Stortford (1 mile north) and Gaston Green (1 mile south-east). We also work in nearby towns such as Stevenage (15 miles west), Hoddesdon (10 miles south-west), Cheshunt (13 miles south-west), Hertford (11 miles west), Ware (8 miles west) and Broxbourne (10 miles south-west).
Landmarks near Thorley Street
Typical jobs here are in homes near Coach And Horses Public House and The Bishop's Stortford High School, among other places. Thorley Street’s nearest station is Bishops Stortford station, about 1.2 miles north. A little further out are Moated mound (3.4 miles north-west) and Herts and Essex Hospital (1.3 miles north-east). For a walk, there is Thorley Wash nature reserve and Portingbury Hills.
What we look for on each type of roof
Chimney stacks
We look at the outside of the stack and the breast inside, not a flue, gas or sweep inspection.
Flat roof upstands and outlets
Outlets drain a flat roof. When one blocks, water ponds and finds any weak spot. Outlets and the area around them are checked.
FAQs for Thorley Street
Is my home in Thorley Street listed or in a conservation area?
Start with Historic England’s list for listing and your council for conservation areas. It’s worth checking before planning roof work, as both can affect what’s allowed.
Will you come out to Thorley Street?
Yes, we do. We survey roofs across London and the South East, from towns to the smallest villages. The journey is planned ahead, so it is useful to know about access.
How should I prepare for the leak investigation?
Make sure the loft can be reached. Have any photos of the leak ready, plus details of past repairs. In the meantime, catch the water and keep it clear of lights and sockets.
Can thermal imaging help find my roof leak?
We use thermal imaging where it helps, and it’s included in our Premium Survey. It picks up temperature patterns rather than water, so we confirm its findings with moisture readings.
Will you check the loft?
If there is a loft and safe access to it, yes. From inside, the underside of the roof often shows damp, staining or daylight that can’t be seen from outside.
How soon will I get the report?
That depends on the survey you book: the Basic Survey report arrives within 48 hours, the Standard Survey in 24 to 48 hours and the Premium Survey the same day. Reports are sent by email.
Can you survey at the weekend?
Surveys can be booked for any day of the week: Monday to Friday, Saturdays and Sundays. Just tell us the days that suit you.
Places near Thorley Street
Other services in Thorley Street
What happens on the day
We work from the outside in: first the slopes, edges and gutters from every safe viewpoint, then the loft space where it can be reached. All told, expect an hour or two for most houses, and longer for a large or complex roof. Somewhere like Thorley Street needs a little journey planning: let us know about lanes, gates and parking. On the day, we inspect everything that’s safely in view, inside and out.
- We help you choose the package that suits the leak.
- We agree a date, including weekends.
- We inspect inside and out, starting from the stain.
- Moisture detection and thermal imaging are used where your package includes them and they help.
- The report explains the likely entry point and what needs attention.
Preparing for the visit
- Move anything stored under the loft hatch
- Have any questions written down, so nothing gets missed
- Note where any stains or damp appear
How to book
Prices start from £150, including VAT. What you pay depends on the roof’s size, access and the package, and you can phone 07833 053749 or email us to find out.
Advice
Landlords, agents and block managers in Thorley Street
We survey roofs for landlords and agents as well as homeowners. A report with photographs gives you a clear record of the leaking roof, useful for planning maintenance.
Landlords, agents and building managers in Thorley Street and across Hertfordshire can book any of our surveys. For a price for a let property or a block, phone 07833 053749 or drop us an email.
What a survey costs
Prices vary from roof to roof, for these reasons:
- Height and safe access
- How complicated the roof is, with its valleys, chimneys and parapets
- Which survey package you book
- Whether thermal imaging or a drone is needed
Our price is from £150, including VAT. Basic starts from £150, Standard from £250 and Premium from £400, VAT included.
What to let us know when you contact us
There is no need for technical words. Just let us know:
- How the loft is reached, if there is one
- Pictures of the roof from a safe spot, if you have them
- What’s prompted the survey
- What kind of property and roof it is
A quick phone call is usually the easiest start: call 07833 053749 or send us an email, and we’ll ask about the building and what you need. You’ll have a price before anything is arranged.
Common roof problems in Thorley Street
Many leaks begin at a flashing. Lead or mortar closes the gap wherever a roof meets a wall, chimney or dormer. Once that seal cracks or lifts, water gets behind it, often well away from where it shows.
Signs worth acting on include:
- Damp ceilings under a flat roof
- Water that shows only in certain storms
- Wet patches high on an inside wall
- Damp on a chimney breast
Anyone responsible for a site like Thorley Hill Primary School will know that on a building that size, finding the source of a drip means looking well beyond the stain.
Choosing a roof surveyor
- Which limits apply to the survey
- Are they insured for the work?
- What follow-up you get after the report
- Whether VAT is in the quoted price