Gas Services

Gas Tightness Test & Purging


Gas Tightness Test & Purging

PHS Trades Team provides strength testing, tightness testing and direct purging of domestic and commercial natural gas installations. Our extensive range of gas services ensures your property is safe, compliant and meets industry regulations.

Each of our engineers is Gas Safe compliant and experienced working with commercial properties. Therefore, we approach every job with professionalism and use our experience to provide high-quality service.

Technician with Gas Leak Detector Performing Scheduled Check
VAC Worker with Natural Gas Detector

Tightness Testing

Gas Tightness testing ensures that gas pipework and installations are safe for use. The test is carried out in controlled conditions using calibrated equipment. Your engineer will monitor the water and electronic gauges for any pressure loss.

We advise that testing should be carried out annually alongside your Gas Safety Certificate. Often this is a requirement from your property insurance provider. Failing to do so may invalidate your policy.

Strength Testing

You will require a Strength Test for any new industrial and commercial gas pipework installations. Additionally, you will also need a strength test for extensions to existing commercial gas pipework installations.

Gas Leak Trace and Repair

Even if the tightness test is satisfactory, a smell of gas or the presence of gas detected will fail the test. In which case, we can provide tracing and repair services.

Trace and Repair Services – Hidden Gas Leak Detection

What to expect from our engineers


  • A high-skilled gas engineer will attend to your property.
  • Our engineer will carry out all testing at operating temperature. 
  • Isolate gas appliances and, where necessary, valves and regulators.
  • Determine the correct testing pressures to calibrate gauges.
  • Carry out the tightness test using gas, air or inert gas
  • Analyse and review the safety of the commercial pipework
  • Provide you with all relevant documentation

Gas Purging

Our commercial gas engineers work to the highest industry standards for direct or indirect purge. In addition, our experts approach every project with detailed planning and supervision. They will implement all site precautions to ensure a safe environment for your public, staff, and property.

When we carry out gas pipework de-commissions, the same level of expertise and quality are implemented, with all de-commissioned pipework left purged to air.

Get in touch with our Gas Engineers today

PHS Trades Team provides the complete works, from pipework sizing to appliance connection and commissioning. We can tailor any of our services to fit the needs of your business.

We can also provide scheduled or reactive out-of-hours and weekend work. Call us directly or use our online booking system for a fast response.

Gas Safe Registered

The Areas We Serve

Our service area is continually growing. Below are some areas we currently cater to. If you don’t see your location listed, please reach out – we might just be in your neighbourhood!

  • Essex
    • Basildon
    • Braintree
    • Brentwood
    • Chelmsford
    • Clacton
    • Colchester
    • Harlow
    • Rayleigh
    • Southend
    • Witham
  • Suffolk
  • London


Speak to a Gas Engineer