Hertfordshire · London and the South East
How Wood Thermal Roof Survey
Thermal imaging to find moisture and heat loss patterns in a roof in How Wood, using drones and thermal imaging where it applies. Call or email for a price.
- Possible trapped moisture under a flat roof covering
- Damp where roofs meet walls and chimneys
- Leaks far from where the stain appears
FAQs for How Wood
Do you carry out roof surveys in How Wood?
Yes, How Wood is one of the places we work. The survey and report are the same in How Wood as anywhere else, and visits run on weekdays and weekends.
Does a conservation area affect roof work in How Wood?
Your council is the best source, with Historic England’s list for listed buildings. Both listing and conservation areas can limit changes of roofing material.
Do you take photos of the roof?
Yes. Photos are part of every report, so you can see exactly what each finding refers to.
Does someone need to be in?
Not always. An outside-only look can be arranged beforehand, but anything inside needs someone there to give access.
Does this replace a RICS home 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.
What conditions are best for thermal imaging?
Conditions on the day have a big effect on what the camera can show. A dry surface, little wind and a sunny spell beforehand help most. We record the conditions in the report, so you know how much weight to give the images.
Are you structural engineers?
No. Our survey isn’t a structural engineer’s report. If we see signs that need an engineer’s opinion, we’ll recommend one.
About our thermal roof survey in How Wood
Thermal imaging is part of our Premium Survey, which starts from £400. It also includes a drone inspection where it applies, a structural analysis and a same-day report. There is an in-person consultation as well, plus a follow-up 12 months later. You can phone 07833 053749 or email us with the address and a note of what you’ve noticed. For big commercial roofs, we quote on size and access. If you’ve noticed areas losing heat at the eaves and junctions and damp that repairs haven’t cured, we can find out what’s behind it, whatever the roof.
Around How Wood, older homes can have thin loft insulation and later additions with roofs of their own. A thermal image can show where heat is escaping or where moisture may be trapped, and drone photos show the roof surfaces themselves. Findings are checked with moisture readings where needed. Results depend on the weather, so the visit is planned around the forecast.
The report works through the roof section by section, from the coverings down to the gutters, each with a short note and a photograph. You’ll see the good as well as the bad.

- Place
- How Wood (AL2)
- Region
- Hertfordshire
- Price
- From £400 inc. VAT
- Your report
- A written report with photos, by email
- When we survey
- Monday to Sunday, daytime
- Cover
- PI and public liability insurance
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
When to book a survey in How Wood
Once a leak has been fixed, people frequently ask whether the roof is still wet. Thermal images and moisture readings can suggest whether moisture is still trapped, given suitable conditions on the day.
Most people get in touch when they’ve noticed something like this:
- Areas losing heat at the eaves and junctions
- Damp around roof outlets and upstands
- Stains that keep coming back
- Water that travels before it shows
For site and facilities teams at buildings such as How Wood Primary and Nursery School, big roofs are where close-up aerial shots and thermal images show the most at once.
Questions to ask before you book
- Will they check the loft as well as the outside?
- What’s outside the scope of the survey
- How long they’ve been surveying roofs
- What insurance they carry
What happens if roof problems are left?
If a big flat roof may need replacing, knowing the wet areas first is useful. Images backed by moisture readings show where problems seem to be before you spend. Tradespeople may need to travel further to a smaller place like How Wood, so it helps to plan roof work rather than call someone out in a hurry. Knowing early gives you time to get the right people in.
The Premium Survey includes thermal imaging and drone inspection where it applies, from £400 including VAT. We can help you choose the package that fits what you want to find out.
Why book us in How Wood
- Surveys seven days a week
- Prices that include VAT
- 98% of clients satisfied
- Drones and thermal imaging where it applies
How we price thermal roof surveys
We confirm the price for your survey before you book. These are the things that affect it:
- Extensions, dormers and garages with roofs of their own
- Any need for thermal images or a drone flight
- The roof’s overall size
- Chimneys, valleys, parapets and other details
Prices quoted always include VAT, and the written report is part of the package. Thermal roof survey starts from £400, including VAT. Size, height and access decide where your roof falls.
Getting in touch
Before you get in touch, it helps to have:
- Pictures of the roof from a safe spot, if you have them
- Where any leaks, stains or damp patches show inside
- Where the property is, with the postcode
- Any deadline, such as an exchange date
To book a survey, call 07833 053749 or use the contact form with the address and what you’d like to know about the roof. We’ll confirm the price before booking.
Before and after the survey
Here are a few things we’d tell any owner, before and after a survey:
- Ask us about the forecast if rain is expected
- Do not climb onto the roof to look for leaks yourself
- Keep the heating on as usual before a heat loss survey
- Photograph damp patches with the date
You also get an in-person consultation with a Premium Survey, giving you the chance to talk through the images and findings. There’s a 12-month follow-up too.
Deal with small splits and lifted seams promptly. Once water gets under a membrane, it can travel far before it appears inside.
What happens on the day
After the inspection, everything we found is written up in a report with photos, sent to you by email. As for time on site, it usually takes about 1–2 hours for a house, and longer for a large or complex roof. Some parts of a survey depend on the weather, so a visit to How Wood is booked with the forecast in mind: the parts that need calm, dry weather are planned around it.
- You let us know about the roof and any damp, leaks or cold rooms.
- The weather and surface conditions are recorded.
- We inspect the roof and take thermal images during the same visit.
- We back up the thermal patterns with moisture readings.
- You get the report the same day, with an in-person consultation to follow.
How to prepare
- Find any records of previous roof work
- If the roof is shared, arrange access with whoever manages the building
- Unlock side gates and any roof access doors
Booking a survey
When you’re ready to go ahead, ring 07833 053749 or drop us an email. We will suggest a package, agree the price and find a date, weekday or weekend.
Advice
Thermal roof surveys around How Wood
Historic houses like High Elms Manor, about 2.2 miles south-west, show how far back building in the area around How Wood goes. Older roofs in the wider area can hide decades of patch repairs, so the detail matters. Where the drone is part of the survey, we check the Drone Safety Map for restrictions before flying.
If you live in an older home near Church of the Holy Trinity, older roofs can be steep and hard to see from the street, which is where aerial photos and thermal images help. Shop and office owners around Village Arcade St Albans may find that big, flat commercial roofs are where aerial photos and thermal images help most.
How Wood is about 2 miles south-west of St Albans, in Hertfordshire. Houses, flats, blocks and commercial buildings in How Wood can all book thermal roof surveys, with a written report and photographs every time. Our area takes in places right across Hertfordshire, from the larger towns to small villages. There’s also a page for London.
We cover every part of the AL2 postcode area for thermal roof surveys and the streets around it. Local streets include Ringway Road, Alder Close and How Wood, and we cover them all. Other places close to How Wood include Park Street (1 mile north-east), Chiswell Green (1 mile north-west), Frogmore (1 mile east), Bricket Wood (1 mile south-west) and Colney Street (1 mile south-east). Further out, we also cover Watford (4 miles south-west), Hemel Hempstead (5 miles north-west), Stevenage (15 miles north-east), Welwyn Garden City (9 miles north-east), Harpenden (7 miles north) and Hoddesdon (15 miles east).
Around How Wood
In How Wood, that means homes and buildings near Marlborough Science Academy and The Falcon pub, among other places. How Wood has its own railway station: How Wood station. A little further out are Hilfield Castle (4.6 miles south) and Hypocaust Museum (2.1 miles north). Green spaces nearby include Broad Colney Lakes and Verulamium Lake.
Other services in How Wood
When you need someone else
This isn’t a RICS building survey, a structural engineer’s report or an asbestos survey. Other limits to bear in mind:
- Clear results when the conditions on the day are poor
- What’s inside walls or under coverings, without opening up
- Seeing water directly, as the camera shows temperature, not moisture
Not sure which survey suits your roof? You can call 07833 053749 or use the contact form and we will tell you. What a survey covers and does not.
Roof types and parts we check
- Flat roofs
- Pitched roof slopes
- Loft conversions
- Commercial roofs
- Insulated roof spaces
- Ceilings below the roof