Hertfordshire · London and the South East
Thermal imaging roof survey in Bygrave, Hertfordshire
Thermal imaging to find moisture and heat loss patterns in a roof in Bygrave. We have completed more than 5,000 surveys across London and South East England.
- Stains that keep coming back
- Possible trapped moisture under a flat roof covering
- Missing or slipped insulation
Thermal roof surveys for homes and businesses in Bygrave
Our Premium Survey, from £400, brings together a full roof inspection and thermal imaging. You also get a drone inspection where it applies, structural analysis and a report on the same day. There’s an in-person consultation as well, plus a follow-up 12 months later. To book, just call 07833 053749 or drop us an email with the address and what you’ve noticed. Larger commercial roofs are quoted for their size. If you’ve noticed wet insulation beneath the membrane and damp around roof outlets and upstands, we can find out what’s behind it, whatever the roof.
Older buildings in small places like Bygrave may be listed or in a conservation area. Neither a drone survey nor a thermal survey involves any work on the roof, which suits a building where any change needs care, before anyone decides what work it needs. Changes that affect a listed building’s special interest need listed building consent, so check with the council first.
The report is written in plain words, so you don’t need to be a roofer to follow it. Photos show what each point refers to, and recommendations are put in order of urgency where relevant.
- Location
- Bygrave (SG7)
- Wider area
- Hertfordshire
- Price
- From £400 inc. VAT
- Your report
- Emailed report with photos and recommendations
- Appointments
- Monday to Sunday, daytime
- Insurance
- PI and public liability insurance
- Call
- 07833 053749
- Last updated
- 27 October 2026
DIY checks: what’s safe
What you can’t do safely is get up close. Slates, tiles, flat roofs and rooflights can give way, and a fall can be serious. That part is for a survey.
If you have a loft with safe access, take a look inside. Take a torch and only step on boards or joists, checking for stains, damp wood or chinks of daylight.
Flying and imaging in Bygrave
Hinxworth Place, about 2.9 miles north-west, is one of the historic houses in the wider area around Bygrave. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and the council can say whether a home is in a conservation area. Where the drone is part of the survey, we check the Drone Safety Map for restrictions before flying.
For site and facilities teams at buildings such as The Knights Templar School, big roofs are where close-up aerial shots and thermal images show the most at once. If your house is among the older ones in the streets near Church of St Margaret of Antioch, older roofs can be steep and hard to see from the street, which is where photos from the air and thermal images help.
Bygrave is about 3 miles north-east of Letchworth, in Hertfordshire. From houses to flats and shops in Bygrave, the roof can be surveyed on a weekday or at the weekend. We cover towns and villages across Hertfordshire. For surveys nearby, see our Milton Keynes page.
We cover every part of the SG7 postcode area for thermal roof surveys and the streets around it. We cover properties on Wedon Way and Ashwell Road. Neighbouring places we cover for thermal roof surveys include Newnham (2 miles north-west), Caldecote (2 miles north-west), Ashwell (3 miles north), Ashwell End (3 miles north) and Bury End (3 miles north). Larger places within reach include Stevenage (7 miles south), Welwyn Garden City (14 miles south), Harpenden (15 miles south-west), Hitchin (6 miles south-west), Hertford (15 miles south) and Letchworth (3 miles south-west).
Around Bygrave
The nearest railway station is Baldock station, about 1.3 miles south-west of the centre. Nearby you will also find Fairfield Hospital (3.6 miles west) and Stotfold Watermill & Nature Reserve (2.5 miles west). Not far away are Arlesey Old Moat and Glebe Meadows.
What we can’t see
A survey is a careful look at the roof, but it cannot do everything. The main limits are:
- What’s inside walls or under coverings, without opening up
- A structural engineer’s assessment
- Seeing water directly, as the camera shows temperature, not moisture
If you are not sure which survey you need, ring 07833 053749 or email us and we will give you a straight answer before booking. What a survey covers and doesn’t.
What this survey covers
- Pitched roof slopes
- Flat roofs
- Insulated roof spaces
- Commercial roofs
- Ceilings below the roof
- Loft conversions
What affects the cost of thermal roof surveys
Several things affect the price of a survey:
- The type of building, from a house to a block or an office
- The number of roofs, including extensions and garages
- How big the roof is
- The height of the building and how the roof can safely be seen
Every price we give includes VAT. Thermal roof survey starts from £400, including VAT. You will know the exact price before booking.
Booking your survey
When you call or email, these details help:
- Where the property is, with the postcode
- Why you want a survey: buying, a leak, a storm or new work
- How the loft is reached, if there is one
- Any marks or damp showing indoors
Buyers should book once an offer has been accepted, so there is time to use the report before exchange. For any other survey, just ring 07833 053749 or email us when you are ready.
How it works
Where it is relevant and can be reached safely, the loft space is checked as well as the outside. In the loft, the signs we look for are staining, damp, daylight and sagging. All in, the survey usually takes between one and two hours for most homes, plus time to check any thermal findings with moisture readings. Older rural homes like those around Bygrave can have a main roof, lower lean-to roofs and outbuildings all joined together. Each part is looked at from wherever it can safely be seen.
- 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.
- Moisture readings are used to check what the camera shows.
- You get the report the same day, with an in-person consultation to follow.
Getting ready for the survey
- Check the loft hatch can be reached
- If you are buying, check with the agent that we can get in
- Note where any stains or damp appear
How to book
To arrange a survey, ring 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 you book.
Related advice
Nearby places to Bygrave
What else we do in Bygrave
Why it’s worth a survey now in Bygrave
A poorly insulated roof loses heat year after year. The camera can point to gaps and thin areas in the insulation, so you know where to put things right. Matching old materials, such as handmade tiles or stone slates, can take time to source. That’s one more reason to find defects before they become urgent.
Prices start from £400, including VAT. Basic starts from £150, Standard from £250 and Premium from £400, VAT included, and we can help you choose.
Why book with us
- Thermal imaging and drone inspection where they help
- More than 5,000 surveys completed
- Packages from £150, with VAT included
- More than 20 years surveying roofs
See what a roof survey costs or what we found on two real jobs.
Surveys for landlords and agents in Bygrave
We survey roofs for letting agents and landlords as well as homeowners. A written report with photos gives you a clear record of the roof.
Where a roof is shared: access has to be agreed with whoever owns or manages the building. Mention it when you get in touch and we will plan the visit with that in mind.
FAQs for Bygrave
Is Bygrave in the area you cover?
Yes. Our area covers London and the South East, and Bygrave is part of that. You can call 07833 053749 or use the contact form with the address and some details.
Do you cover smaller places like Bygrave?
Yes, Bygrave is on our map. A small place gets exactly the same survey as a big one, with the route planned beforehand.
Which survey includes thermal imaging?
Our Premium Survey, from £400, includes thermal imaging. You also get an in-person consultation and a 12-month follow-up. Larger commercial roofs are quoted for their size.
What does a thermal roof survey show?
A thermal camera shows differences in surface temperature. The patterns can suggest wet insulation, gaps in insulation or heat escaping. Findings are checked with moisture readings.
Can you check my loft insulation with a thermal camera?
It can show temperature patterns that point to missing or thin insulation. It shows most clearly when it’s warm inside and cold outside. Where we can reach the loft safely, we check there too.
Will you go up on the roof?
Not unless it is safe. Most of what we need can be seen from safe viewpoints, the loft and, where applicable, a drone, and the report notes anything we couldn’t see.
How long will you be at the property?
It normally takes about 1–2 hours for most homes, plus time to check any thermal findings with moisture readings. The report follows by email.