specialist-surveying | Thermal imaging
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Thermal imaging

Thermal Imaging


Thermal imaging is an engaging and indispensable tool for demonstrating where heat is being lost in your home. It can be used to track down the causes of cold rooms in your home, pinpoint sources of draughts and cold air infiltration and identify heat loss through patchy or missing insulation.




How does it work?


  1. We will book in a convenient time to visit you in your home – naturally this will depend on the time of year and forecast weather conditions.  Note that we may suggest rearranging for another date if the conditions turn out to be unsuitable.
  2.   When we arrive we’ll discuss in some detail the problems you have encountered with heat loss/draughts and any objectives you have.


How long does a survey take?


This depends to an extent on the size of your home, but also on how involved you want to be.  We strongly encourage you to follow us around on the survey – we will both learn more in the process, which will ultimately help us to help you.  We suggest you allow a minimum of 1 hour, and up to 2.5 hours if you have a lot of questions or a very large property.


What will you receive?


Usually within 7 days you will receive your thermal imaging report in PDF format, including copies of the images recorded, and our interpretation of what they are indicating.

What we look for during the survey


Insulation problems


Insulation is one of two main barriers to heat loss (the other being airtightness).  Where insulation is missing or patchy it opens the door to heat passing through that part of the wall (right), floor or ceiling.  Studies have shown that if 10% of insulation is missing, it typically reduces that part of the building’s ability to retain heat by a staggering 50%.  Unfortunately a poor standard of insulation is not usually obvious to the naked eye, and is often completely hidden within the building fabric.

Thermal imaging can quickly identify where heat is being lost as a result of poor workmanship, or well-meaning but counterproductive installation.  In the more extreme cases it can be used as evidence to help with rectifying substandard building work.











Draughts are not only uncomfortable, they are also usually an indication of heat being lost unnecessarily – after all that air has got to be going somewhere!  Unfortunately the source of draughts is not always obvious – for example cold air coming through floorboards and skirting tends to be quite diffuse; draughts through long hairline cracks also tend not to be noticed at all, particularly where cracks have developed slowly over time.  Doors, windows (right), old vents and fans are more obvious culprits, but even then some homeowners are blissfully ignorant of their impact.

The thermal imaging camera immediately picks up the cold traces that give away where cold air is entering the property, providing objective evidence as to where to focus your draughtproofing efforts.


Cold air infiltration 


Draughts and cold air infiltration are slightly different – cold air from outside can dramatically cool rooms down as it moves through the voids behind walls, above ceilings and below floors… without the cold air ever entering the living space itself.  Much of this depends on the design of the house, quality of construction and any extension work which has taken place over the years.  In almost every case, however, all the homeowner will know is that a particular room is cold and they can’t work out why.

Draughts and cold air infiltration are the most significant sources of heat loss in many homes.


Heating problems 


During our survey we can often uncover a plethora of problems with the heating, from air trapped in the system and unbalanced radiators to leaking underfloor heating and heat haemorrhaging from uninsulated pipework hidden in voids


Thermal Imaging Pricing


Please note that prices vary depending on the size and location of your property. Please contact us on 029 2115 4753 for a free, no obligation quote or alternatively please complete your contact details in the box and we will call you back.



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