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Air Leaks


The manufacturing industry has dismissed compressed air as a low-cost commodity for some time, fortunately, this view is changing. Recent studies have shown that compressed air is not free, it’s not even cheap. As of April 2016, it would transpire that compressed air accounts for 10% of the UK’s industry electricity consumption.

Whether your business is large or small, if you use compressed air (or gas) there is a high probability that you are losing money. 

The potential cost to your business is huge. Keep your energy bills down with Thermal Savings UK’s Leak Detection Services.


Larger ‘audible’ leaks are often discovered and repaired quickly before they become costly. Smaller ‘inaudible’ leaks can cost as much as £700 per year. As 95% of all leaks are inaudible it is not surprising that many go undetected and cost so much in wasted energy.

Thermal Savings UK uses a specialist ultrasonic sound detection system to quickly detect leaks across all areas; compressed air generation, treatment, distribution, and process usage. Markers are placed next to the uncovered leaks so that the leaks are easy to locate and repair by your maintenance teams. Our leak detection experts will operate while your production line is in full operation, meaning that there is zero disruption to your business.


The survey report will be prepared offsite and will detail the leak locations, estimated leak costs and estimated annual savings (in £’s and CO2). A Thermal Savings UK survey will also highlight low-cost repair methods that can be implemented immediately.

How to Calculate Air Leak value:

  1. How long is the Compressed Air running for i.e. machine operation hours
  2. Assess energy bill to ascertain kWh (typically 9-12p/ Kwh)
  3. Pressure of the compression system (psi or bar). Often displayed on the compressor itself.
  4. Leak sound level in dB (decibels). This is measured by the ultrasonic sound detection gun.

The sound volume of the leak in DB, combined with the known pressure of the compression system allows the auditor to make a good estimate of the leak in Cubic feet.

Using the known energy cost for the production of a Cubic ft of air, as well as the running time of the compressor itself allows the auditor to make accurate cost/ loss calculations.


Leak repairs are usually simple and cost effective, with many companies choosing to address the problem of air and gas leaks in-house. All Air Leak Survey findings are put into a detailed report, to be passed over to on-site maintenance teams. Often maintenance repairs will include the tightening of jubilee clips, loose joints, or a few small hardware repairs. 

For large users of compressed air Thermal Savings UK have been able to generate savings in excess of £50,000! With potential energy and cost savings of this magnitude available, the cost of the survey and the subsequent repairs are insignificant. We operate on a ‘NO LEAK, NO FEE’ basis so smaller users of compressed air can be sure to make savings too; if there are no savings to be made, you won’t get billed.

Call us today to find out how much wasted air is costing your business.

Based in Poole, Thermal Savings UK has teamed up with Dorset’s leading business support organisation (The DCCI) and has been providing Air Leak Surveys for users of compression systems all over the south coast with dramatic results. Working in conjunction with the DCCI Thermal Savings UK provide their Air Leak Survey at a discounted cost to DCCI members.


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