Hampshire · London and the South East
Four Marks Thermal Roof Survey
Find out what’s going on with the roof before you decide what to do next. Thermal roof surveys in Four Marks, with photographs and a clear written report.
- Cold areas below the roof
- Areas of a flat roof that may hold water
- Wet areas near outlets and upstands
How a thermal roof survey works in Four Marks
Thermal imaging is part of our Premium Survey, which starts from £400. You also get a drone inspection where it applies, structural analysis and a report on the same day. An in-person consultation and a 12-month follow-up are included too. To book, just ring 07833 053749 or send us an email with the address and what you’ve noticed. Larger commercial roofs are quoted for their size. We survey pitched roof slopes, flat roofs and loft conversions, and the problems we are asked to look at most are missing or slipped insulation and damp that repairs haven’t cured.
Older cottages and houses around Four Marks may have little insulation, and some have extensions with their own roofs. A thermal image can show where heat is escaping or where moisture may be trapped, and drone photos show the roof surfaces themselves. Anything that looks like moisture is checked with a meter. Results depend on the weather, so the visit is planned around the forecast.
With the Standard Survey, you also get moisture detection, a structural check and a follow-up consultation. The Premium Survey goes further, with thermal imaging, drone inspection where applicable, structural analysis and an in-person consultation.
- Location
- Four Marks (GU34)
- Region
- Hampshire
- Prices
- From £400 inc. VAT
- Your report
- Written, with photos, emailed to you
- When we survey
- Monday to Sunday, daytime
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
What affects the cost of thermal roof surveys
A few things affect what a survey costs:
- Commercial roofs and larger buildings
- Whether thermal imaging or a drone is needed
- Height and safe access
- Extensions, dormers and garages with roofs of their own
Thermal roof survey starts from £400, including VAT. What you pay depends on how big and how high the roof is, how it can safely be seen and the package you choose.
What we need to know
When you call or email, these details help:
- Any photos you have, taken from ground level or a window
- What made you get in touch
- Where water is showing inside, if it is
- Whether there’s a loft hatch, a shared roof or tricky access
Our phone lines are open seven days a week, including Saturdays and Sundays. To book or ask a question, phone 07833 053749 or email us.
Places near Four Marks
Also in Four Marks
What happens if roof problems are left?
Once insulation under a membrane is wet, it tends to stay wet. In time, it stops insulating properly and can damage the deck. Finding the wet areas sooner keeps the work smaller. Arranging work in a smaller place like Four Marks is easier with notice than in an emergency. A survey gives you that notice.
Our price is from £400, including VAT. Packages run from Basic at £150 through Standard at £250 to Premium at £400, including VAT.
Why book with us
- Drones and thermal imaging where applicable
- Two decades and more of roof surveys
- Package prices that include VAT
- Drone flown under a CAA Flyer ID and Operator ID
Questions from Four Marks
How do I find out if my home in Four Marks is listed?
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.
Will you come out to Four Marks?
Yes, Four Marks is covered. Our area covers London and the South East, from towns to the smallest villages. The journey is planned ahead, so it helps to know about access.
Will you fly a drone over my roof?
Yes, where it is applicable. Flights depend on the weather on the day and airspace rules. We’re a CAA-registered drone operator.
How experienced are you?
More than 5,000 surveys over 20+ years, across London and South East England.
Will the camera show exactly where the water is?
Not directly. It shows temperature, and wet materials frequently behave differently from dry ones. We confirm what it suggests with moisture readings.
How do I book a survey in Four Marks?
To arrange a survey, ring 07833 053749 or drop us an email with the address, the type of property and what’s prompted the survey. We will confirm the price and find a day that suits.
Does thermal imaging work on slate and tile roofs?
It can help, but the results are frequently less clear than on a flat roof. The air space under slates and tiles can hide patterns, so we combine it with an inspection from the loft where there’s safe access.
Before and after the survey
Getting the most from a thermal roof survey starts before we arrive and carries on afterwards. Tips:
- Don’t climb onto the roof to look for leaks yourself
- Tell us where and when you’ve seen damp or stains
- Do not switch the heating off ahead of the visit
- Check outlets after heavy rain
We note the weather and surface conditions, and how they may have affected the results. It helps you judge how firm each finding is.
Check that loft insulation is laid evenly and hasn’t been pushed aside. Insulation is often moved when people work in the loft space.
Signs you need a thermal roof survey in Four Marks
Building owners and managing agents use thermal surveys to plan work on larger flat roofs. It can suggest which areas may be wet and which seem dry, so we know where to take moisture readings.
Most people get in touch after spotting something like this:
- Cold areas below the roof
- Possible trapped moisture under a flat roof covering
- Heat escaping through the roof
- Damp around roof outlets and upstands
Take a building like Four Marks Church of England Primary School: a drone or thermal camera can show a large roof in a single visit.
Questions to ask before booking
- What exactly goes into their report
- Whether the loft is part of the inspection
- How much experience they have with roofs like yours
- How long the report takes to arrive
Flying and imaging in Four Marks
If your survey includes the drone, we check the Drone Safety Map for restrictions before flying. Some Hampshire villages still have thatched roofs. Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles. Where a roof is steep, tall or hard to see from the ground, drone photos and thermal images add detail.
Historic houses like Bentworth Hall, about 2.7 miles north, show how far back building around Four Marks goes. For older roofs nearby, a look from the air or with a thermal camera is a hands-off way to check condition. If yours is one of the older homes in the streets near Church of the Good Shepherd, tall stacks and steep slopes are easier to judge with close-up aerial photos than from the pavement.
Four Marks is about 4 miles south-west of Alton, in Hampshire. We provide thermal roof surveys for homes and businesses in Four Marks and nearby. Our Hampshire coverage includes Four Marks and the places around it. Our Southampton page covers surveys nearby.
We cover every part of GU34 for thermal roof surveys and the streets around it. That includes homes and businesses on Read's Field, River Close and Chalk Close. We also cover Medstead (1 mile north), Soldridge (1 mile west), South Town (2 miles north-west), New Copse (2 miles north) and Hattingley (2 miles north-west). We also work in nearby towns like Basingstoke (11 miles north), Winchester (12 miles west), Fleet (15 miles north-east), Horndean (14 miles south), Alton (4 miles north-east) and Petersfield (9 miles south-east).
Local landmarks in Four Marks
Four Marks’s nearest station is Alton station, about 4.6 miles north-east. Nearby you will also find Barton Castle (3.5 miles north-west) and Alton Community Hospital (3.3 miles north-east). Open spaces near Four Marks include Red Hill.
How the survey works
There isn’t much for you to do on the day. Point out anything you’ve noticed, like stains, drips or loose pieces, and we’ll take it from there. The survey itself takes roughly 1–2 hours for most houses; commercial roofs usually need 3–4 hours. Being in a smaller place like Four Marks doesn’t change how the visit works: outside, inside and from any safe vantage point, in that order. It helps to show us anything you’ve already noticed.
- First we go over the roof, the problem you’ve noticed and the conditions forecast for the visit.
- The roof is inspected visually from safe viewpoints.
- Thermal images are taken to show differences in surface temperature.
- Areas that look unusual on the camera are checked with moisture readings where possible.
- You get a report with thermal images, photos and our recommendations.
How to prepare
- Check we can get to the back of the property
- Let us know about parking near the property
- If it is not your property yet, arrange access through the agent
Book a survey
For a price for thermal roof surveys in Four Marks, call 07833 053749 or use the contact form. The address, the type of property and what you’d like to know help us price the survey accurately.
Related advice
Landlords, agents and block managers in Four Marks
Buyers’ agents can book surveys on behalf of their clients. Reports are emailed, so they’re easy to pass on, photos included.
Roof problems in a rented home affect tenants as well as the building. A survey shows what needs attention, so you can plan the work.