Commercial Gas Isolation Valve Installation in Portsmouth

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 Portsmouth.

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 isolation valve installation in Portsmouth.

For most Portsmouth jobs we can attend the same day or next day. For emergencies we offer a 24/7 call-out service across Portsmouth and surrounding areas.

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.

Yes. We cover restaurants, pubs, hotels, schools, care homes, offices and industrial sites across Portsmouth and the surrounding areas — including landlords, managing agents and facilities companies.

A job is legally considered “non-domestic” or commercial if the gas appliance is rated above 70kW (kilowatts) net input. Appliances below this are generally domestic, though the location (e.g., a boiler in a shop vs. a house) can sometimes influence the necessary certification.

BS 6891 is the installation specification for low pressure natural gas pipework of up to 35mm (R 1¼”) in domestic premises. This standard applies to gas installation pipework where the nominal working pressure is 21 mbar.

Commercial Pipework Competent in the install & removal of gas pipework greater than 35mm (1 1/4") in diameter.

Yes, under the Gas Safety (Installation and Use) Regulations 1998, it is a legal obligation for commercial property owners and landlords to have a valid gas safety certificate in London if gas appliances are installed.