Gas Tightness Test Certificate London
Specialists in gas tightness test certificate
Gas Tightness Test Certificate London — Pressure (tightness) test on your commercial gas pipework in the UK, performed to IGEM/UP/1 or IGEM/UP/1B procedures. Required after pipework changes or when leaks are suspected.
Officially RegisteredNeed your annual check booked? Get a commercial gas safety certificate from Gas Safe registered engineers, from £150 + VAT.
About Commercial Gas Tightness Test
Pressure (tightness) test on your commercial gas pipework in the UK, performed to IGEM/UP/1 or IGEM/UP/1B procedures. Required after pipework changes or when leaks are suspected.
What's Included in Commercial Gas Tightness Test
- Strength and tightness test to IGEM standards
- Let-by, tightness and stabilisation checks
- Documented test results for your records
- Re-test after remedial works included
Combine your gas work with AC or refrigeration — save a call-out
Gas Safe + REFCOM F-Gas registered engineers can handle both trades in the same visit. Add air conditioning or refrigeration work while we are already on site and avoid a second call-out fee.
Air Conditioning Installers
New split, multi-split and VRF installs for offices, shops and commercial premises.
View serviceCommercial AC Service
Planned servicing, F-Gas logbook updates and reactive repairs to keep cooling running.
View serviceCommercial Refrigeration Repair
Fast repairs for fridges, freezers, cold rooms and display cabinets.
View serviceHow Commercial Gas Tightness Test Works
- 1
Get in touch
Call or book online for commercial gas tightness test anywhere in the UK. We'll confirm scope and a fixed price.
- 2
Engineer attends
A Gas Safe registered commercial engineer attends at the agreed time, fully equipped and qualified for the work.
- 3
Work completed & certified
Work is completed to the relevant standard (IGEM, BS, manufacturer spec) and you receive the appropriate certificate or report on the day.
Commercial Gas Tightness Test: Quick Answer
We conduct commercial gas pipework tightness tests to IGEM/UP/1 or IGEM/UP/1B procedures in London and the M25 area, from £150 + VAT. This service is essential after pipework changes or when leaks are suspected. Our Gas Safe registered engineers offer same-day and next-day appointments, operating 7 days a week from 07:00–21:00, with fixed written quotes and no call-out fee.
Common Problems We Solve
Concerned about commercial gas pipework leaks.
Our Gas Safe registered engineers perform commercial gas tightness tests to IGEM/UP/1 or IGEM/UP/1B procedures to identify and address potential leaks. This ensures safety and compliance with UK regulations, providing peace of mind for your business. We offer same-day and next-day appointments for prompt service.
Need a tightness test after pipework modifications.
After any changes to your commercial gas pipework, a tightness test is crucial for safety and regulatory compliance. Our Gas Safe registered engineers can conduct this test swiftly and efficiently. We operate 7 days a week and provide fixed written quotes with no call-out fee.
Require a quick and reliable service for testing.
We understand the urgency of commercial gas safety. Our Gas Safe registered engineers are available 7 days a week, from 07:00–21:00, offering same-day and next-day appointments for commercial gas tightness tests. You receive a fixed written quote with no call-out fee, ensuring transparent and efficient service.
What People Ask About Commercial Gas Tightness Test
How long does a commercial gas tightness test take?
The duration of a commercial gas tightness test varies depending on the complexity and size of the pipework system being assessed. Our Gas Safe registered engineers conduct tests efficiently, ensuring thoroughness whilst aiming for minimal disruption to your operations. We offer same-day and next-day appointments.
What is the procedure for a commercial gas tightness test?
A commercial gas tightness test involves safely isolating sections of pipework and applying pressure to detect any drops that would indicate a leak. Our Gas Safe registered engineers perform these tests in strict accordance with IGEM/UP/1 or IGEM/UP/1B procedures, ensuring accurate and reliable results.
When is a commercial gas tightness test required?
A commercial gas tightness test is specifically required after any modifications or changes to commercial gas pipework, or if leaks are suspected. It is a critical safety measure to ensure the integrity of the system and prevent hazards. We can provide same-day service.
What regulations govern commercial gas tightness testing?
Commercial gas tightness testing is governed by UK legislation, including the Gas Safety (Installation and Use) Regulations 1998, and adheres to industry standards such as IGEM/UP/1 or IGEM/UP/1B. Our Gas Safe registered engineers ensure all work meets these stringent safety requirements.
What is the cost of a commercial gas tightness test?
The price for a commercial gas tightness test starts from £150 + VAT. This fixed written quote is provided upfront, with no call-out fee. Our transparent pricing ensures you know the cost before any work commences, delivered by Gas Safe registered engineers.
What is the permissible drop for a gas tightness test?
The permissible pressure drop during a gas tightness test is determined by specific industry standards, such as IGEM/UP/1 or IGEM/UP/1B, and depends on factors like pipe volume and test duration. Our Gas Safe registered engineers are trained to interpret these parameters accurately.
Can I get a commercial gas tightness test quickly?
Yes, we offer same-day and next-day appointments for commercial gas tightness tests to address urgent requirements. Our Gas Safe registered engineers operate 7 days a week, from 07:00–21:00, ensuring a rapid response across London and the M25 area for your business needs.
Key Terms
- Gas Safe registered engineers
- London
- M25
- IGEM/UP/1
- IGEM/UP/1B
- Gas Safety (Installation and Use) Regulations 1998
- commercial gas pipework
- Kent
- Surrey
- Essex
FAQs about Commercial Gas Tightness Test
How much does commercial gas tightness test cost in the UK?+
Pricing depends on the size of your premises, the number of appliances and any access requirements. We always provide a fixed written quote before any work starts in the UK.
Are your engineers Gas Safe registered for commercial gas tightness test?+
Yes. All of our engineers are Gas Safe registered for the relevant commercial categories (COMCAT 1–5, CODNCO1, CORT1) and carry the right qualifications for commercial gas tightness test in the UK.
How quickly can you attend in the UK?+
For most the UK jobs we can attend the same day or next day. For emergencies we offer a 24/7 call-out service across the UK and surrounding areas.
Do you provide a certificate or report on completion?+
Yes — every job is completed with the correct documentation, whether that is a CP-series certificate, a tightness test record, a service report or an interlock commissioning certificate.
Do you cover commercial premises throughout the UK?+
Yes. We cover restaurants, pubs, hotels, schools, care homes, offices and industrial sites across the UK and the surrounding areas — including landlords, managing agents and facilities companies.
What is a tightness test on a commercial gas meter?+
It verifies that the system can maintain the correct gas pressure safely. Required by law, a gas-tightness test must be performed whenever gas systems are installed, modified, or repaired. It's also included in yearly gas safety checks for businesses that use gas-powered equipment.
Do you have to do a tightness test on a gas safety?+
Gas Safety (installation & use) Regulations 1998 GS(I&U)R Reg 35: These require employers, including schools, to conduct gas tightness testing to ensure that gas fittings & flues are maintained in a safe condition so as to prevent risk.
How is a gas tight integrity test performed?+
The test is carried out on the membrane immediately after its installation and prior to it being covered up by the ensuing construction processes. The area below the membrane is temporarily pressurised with a mixture of clean air and a specialist tracer gas which seeks out and identifies any leaks within the membrane.
How long is a commercial tightness test?+
b) Tightness test pressure between 20 and 21 mbar. ❖ 1 minute pressure and temperature stabilisation (may require longer for a stable reading to be achieved). ❖ 2 minute tightness test (where necessary adjust pressure to between 20 and 21 mbar before commencing test).
Other Commercial Gas Services Often Booked With Commercial Gas Tightness Test
Our Gas Safe engineers can carry out any of the works below in the same visit across the UK.
Commercial Boiler Service
Annual servicing of commercial boilers in the UK — combustion analysis, safety checks, and a full service report. Keeps your boiler efficient, compliant, and warranty-valid.
Commercial Boiler Installation
Specification, supply and installation of commercial boilers in the UK — from light commercial 30kW up to large cascade systems. Fully Gas Safe certified.
Catering Equipment Servicing
Service and repair of commercial catering appliances in the UK — ranges, ovens, fryers, grills, salamanders and steamers. Keeps CP42 certification valid year-round.
Commercial Gas Cooker Installation
Installation and certification of commercial gas cookers and ranges in the UK to current Gas Safety (Installation & Use) Regulations.
Gas Interlock System Installation
Supply, install and certify gas interlock systems in the UK commercial kitchens — a legal requirement under BS 6173 / DW172 wherever ventilation serves gas appliances.
Commercial Gas Pipework Installation
Design and installation of new commercial gas pipework in the UK — from meter alterations to full kitchen distribution runs. Fully tested, purged and certified.
FAQs about related services
Can I book related commercial gas services with my commercial gas tightness test in the UK?+
Yes — when our engineer attends in the UK for commercial gas tightness test, they can also carry out boiler servicing, gas tightness testing, interlock work, pipework or emergency repairs in the same visit, saving you a second call-out fee.
Do you cover all of the related services across the UK?+
Yes. Every service listed in the "related commercial gas services" section is delivered by our own Gas Safe registered commercial engineers throughout the UK and the surrounding areas — no subcontractors.
Will I get one combined quote for commercial gas tightness test and any related work in the UK?+
Yes. Tell us what you need when you book and we'll send a single fixed written quote covering commercial gas tightness test plus any additional commercial gas works at your the UK premises.
Commercial Gas Safety Certificates We Issue Alongside Commercial Gas Tightness Test
Every CP-series certificate below can be completed on the same visit as your commercial gas tightness test.
CP42 Commercial Catering certificate
Annual gas safety for restaurants, cafés, hotels & pubs.
CP44CP44 Mobile Catering & LPG certificate
For food trucks, trailers & market stalls.
CP17CP17 Installation Certificate certificate
Required for every new commercial gas appliance.
CP15CP15 Plant Commissioning certificate
Mandatory for new commercial boilers & heaters.
CP16CP16 Testing & Purging certificate
For new or modified commercial gas pipework.
CP2CP2 Leisure Industry certificate
Caravans, motorhomes, boats & holiday parks.
FAQs about gas safety certificates
Which gas safety certificates can I get alongside commercial gas tightness test in the UK?+
On the same visit in the UK we can issue CP42 (commercial catering), CP44 (mobile catering & LPG), CP17 (installation), CP15 (plant commissioning), CP16 (testing & purging) and CP2 (leisure industry) certificates wherever the work falls within scope.
Do landlords and managing agents in the UK need a CP-series certificate as well as commercial gas tightness test?+
In most cases, yes. Commercial landlords and managing agents in the UK have a legal duty under the Gas Safety (Installation and Use) Regulations 1998 to hold a current annual gas safety certificate for every commercial gas appliance, in addition to any one-off works.
Are the certificates issued in the UK accepted by insurers and Environmental Health?+
Yes. All certificates we issue in the UK are produced by Gas Safe registered commercial engineers and are accepted by insurers, Environmental Health Officers, the HSE, building control and managing agents.
Ready to Book Your Commercial Gas Tightness Test?
Secure your certificate today. Our Gas Safe registered engineers are available seven days a week with same-day service as standard.
Starting from £150 + VAT for 1 appliance • Same-day service available
Gas tightness test certificate: your questions answered
Gas tightness test certificate starts from £150 + VAT, with a fixed written quote agreed before any work begins and no hidden fees.
How much does gas tightness test certificate cost?
Gas tightness test certificate starts from £150 + VAT, with a fixed written quote agreed before any work begins and no hidden fees.
Who carries out gas tightness test certificate?
Gas tightness test certificate is carried out by our directly employed Gas Safe registered engineers, with written records issued after every visit.
Which areas do you cover for gas tightness test certificate?
We cover gas tightness test certificate in London and the M25, with same-day and next-day appointments available seven days a week, 07:00–21:00.
Related: commercial gas safety certificate prices · CP42 catering gas certificate · commercial boiler servicing · areas we cover