Essex · London and the South East
Thermal imaging roof survey in Mark Hall South, Essex
Wondering about the roof at a property in Mark Hall South? We carry out thermal roof surveys in Mark Hall South and across Essex, with plain-English findings.
- Cold spots on ceilings under the roof
- Stains that keep coming back
- Moisture around outlets and upstands
Thermal roof survey in Mark Hall South
Thermal imaging is a useful tool, but it has limits. It shows surface temperature, and things like sun, shade, reflections and wind all affect the readings. That is why we check findings with moisture readings and a close visual inspection. The report is clear about what the images show and what they don’t. Where something can’t be confirmed, we say what would help next. If you’ve noticed water getting in at parapets and stacks and patches of heat loss across the roof, we can find out what’s behind it, on loft conversions, ceilings below the roof and flat roofs alike.
Even in a smaller place like Mark Hall South, there may be airfields or restrictions nearby, so every drone flight starts with a check of the Drone Safety Map. Exposed sites can be windy, and a small drone cannot fly safely in strong wind, while thermal imaging also works best with little wind. Neighbours’ privacy is part of planning each flight, along with the airspace and the weather.
You receive the findings by email, ready to forward to whoever needs them. Turnaround is within 48 hours for Basic, 24–48 hours for Standard and same day for Premium.

- Place
- Mark Hall South (CM20, CM17, CM18)
- Region
- Essex
- Prices
- From £400 inc. VAT
- Report
- Emailed report with photos and recommendations
- When we survey
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
What you can safely check yourself
Watch the gutters in a downpour, from a window or the ground. Water spilling over the edge can point to a blockage or a sagging run.
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date.
Towns and villages near Mark Hall South
Other services in Mark Hall South
When you need someone else
Our findings are based on what we can see safely on the day, so some things are outside what a survey can do:
- Proving moisture from the images alone
- Readings unaffected by sun, shade or reflections
- An energy rating for the building
If in doubt, call 07833 053749 or send us an email and we will point you to the right survey. What our survey covers.
Roofs we survey in Mark Hall South
- Commercial roofs
- Ceilings below the roof
- Flat roofs
- Loft conversions
- Pitched roof slopes
- Insulated roof spaces
What happens on the day
Every visit follows the same pattern: we hear what you’ve seen, look at the roof from every safe viewpoint, take photos as we go and record our findings for the written report. It usually takes about 1–2 hours for most homes, plus time to check any thermal findings with moisture readings. For a survey in Mark Hall South, we agree the time, the access and parking before the day. Weekday and weekend visits are both possible. Tell us about any garages, outbuildings or extensions you want included.
- You let us know about the roof and any damp, leaks or cold rooms.
- The weather and surface conditions are recorded.
- A full inspection and thermal imaging are carried out together.
- We back up the thermal patterns with moisture readings.
- The Premium report reaches you the same day, and we go through it with you in person.
Preparing for the visit
- Keep pets inside or away from the areas we’re looking at
- Show us where any leaks or stains appear
- Have any questions written down, so nothing gets missed
Booking a survey
A quick phone call is normally the easiest start: ring 07833 053749 or use the contact form, and we will ask about the building and what you need. You’ll have a price before anything is arranged.
Related advice
Drones, thermal imaging and Mark Hall South roofs
If the drone is used for your survey, we check the Drone Safety Map for restrictions before flying. Harlow, which Mark Hall South is part of, is one of England’s post-war new towns. Homes from the post-war decades are common in the new towns, many with low-pitched roofs in concrete tiles and flat-roofed garages or porches. Low-pitched roofs can be hard to see from the street, which is where a drone or thermal camera helps.
Take a building like Cooks Spinney Primary Academy and Nursery: thermal images can show where wet insulation sits under a big flat roof.
Mark Hall South is about 1 mile north-east of Harlow, in Essex. In Mark Hall South, as across Essex, every roof gets the same careful survey. Across Essex, we cover Mark Hall South and the places around it. We also survey roofs in Chelmsford.
Every address in CM20, CM17 and CM18 is covered for thermal roof surveys. We offer thermal roof surveys to properties on First Avenue, Mardyke Road and Momples Road and the roads around them. Main roads around Mark Hall South include the A414 and A1025. Nearby, we also carry out thermal roof surveys in Harlow (1 mile south-west), Mark Hall North (1 mile north-west), Latton (1 mile south-east), Netteswell (1 mile west) and Newhall (1 mile east). Further out, we also cover Brentwood (13 miles south-east), Loughton (9 miles south), Waltham Abbey (8 miles south-west), Great Dunmow (12 miles north-east), Epping (5 miles south) and Stansted Mountfitchet (10 miles north).
Local landmarks in Mark Hall South
Around Mark Hall South, our work takes us to homes and buildings near Fawbert and Barnard's School, Harlow Marsh and Purple Emperor pub, among other places. For rail, the closest station is Harlow Town station, about 1.2 miles north-west of the centre. Other landmarks nearby include Harlow Mill (1.2 miles north) and Princess Alexandra Hospital (1.4 miles west). For a walk, there’s Hunsdon Mead.
Useful tips for Mark Hall South property owners
A survey works best with a little help from you, before and after. Tips:
- Heat the home normally on the days before
- Do not climb onto the roof to look for leaks yourself
- Remember the conditions on the day affect the results
- Keep a record of when stains appear
You can pass the report to a roofer so they can see where the problem areas seem to be. Each thermal image is matched to a normal photo, so the areas are easy to locate.
Make sure loft insulation covers the whole area and hasn’t been disturbed. Insulation is often moved when people work in the loft space.
Mark Hall South questions
Is Mark Hall South in the area you cover?
Yes, Mark Hall South is within the area we cover. Our area covers London and South East England. You can ring 07833 053749 or email us with the address and some details.
Does a conservation area affect roof work in Mark Hall South?
Start with Historic England’s list for listing and your council for conservation areas. It is worth checking before planning roof work, as both can affect what’s allowed.
How long have you been surveying roofs?
We have been surveying roofs for over 20 years and have carried out more than 5,000 surveys across London and the South East.
Is it the same as a RICS Level 2 or Level 3 survey?
No. Our survey is a roof survey, not a RICS Level 2 or Level 3 survey of the whole building. It focuses on the roof and can sit alongside a RICS survey.
Can you survey a shared roof?
Yes, once access has been agreed. The roof of a block or converted house is often shared, so the building owner or managing agent needs to agree access. We can only inspect what we are given access to.
Do you use drones?
Where it is applicable and safe, yes. We fly a sub-250g drone and we’re a CAA-registered drone operator (Flyer ID and Operator ID). It’s included in the Drone Roof Survey and, where it applies, the Premium Survey.
What do I do with the report?
The report arrives by email. The Standard Survey includes a follow-up consultation, and the Premium Survey an in-person consultation, so you can talk the findings through.
Common roof problems in Mark Hall South
Cold rooms under a roof, or high heating bills, lead some people to ask about heat loss. Gaps in loft insulation and poorly insulated roof areas can show up on the camera, especially when it is warm inside and cold outside.
Things that frequently lead to a survey include:
- Stains that keep coming back
- Damp around chimneys and parapets
- Water that travels before it shows
- Gaps in loft insulation
If your home is one of the older ones in the streets near St Andrew's Methodist Church, thin or patchy insulation under an old roof often shows up clearly on a thermal image.
Before booking any roof surveyor
- Their insurance cover
- Whether VAT is in the quoted price
- Their track record with similar roofs
- Whether the inside of the roof is included
Different roofs, different checks
GRP fibreglass roofs
Cracks in GRP can let water into the boards beneath. We combine a visual check of cracks with the thermal images around them.
Pitched slate and tile roofs
On pitched roofs, slates and tiles over a ventilated space can mask what’s happening underneath. We back up what the camera shows with a look in the loft where we can.