London's commercial refrigeration, gas and AC contractor. F-Gas / REFCOM certified, Gas Safe registered. Multi-site facilities-management contracts a speciality. Same-day emergency response across London.
Gas Safe registered · 919290 F F-Gas / REFCOM Category 1 D Daikin Business Partner T TrustATrader Approved · Checkatrade listed Walk-in cold rooms, kitchen refrigeration, cellar cooling, comms-room cooling. R448A retrofits. F-Gas certified.
Explore refrigerationCommercial Gas Safety Records (CP42), not the residential CP12 that half the SERP gets wrong. Tightness testing, plant rooms. From £150 + VAT.
Book a CP42Walk-ins, ice machines, kitchen refrigeration, cellar cooling. Same-day emergency response across London hospitality. Friday-night calls handled.
HospitalityServer-room cooling, office AC, multi-floor systems. ASHRAE-compliant, N+1 redundancy planning. Up to ~50kW; not data-centre scale.
Offices & commsPlanning a refrigerant retrofit? 90 seconds to scope the right replacement gas, the changes the job needs, and an indicative cost band.
Open the advisorPlanned preventative maintenance. Quarterly, biannual or annual. Multi-site portfolios welcome. Documented response SLAs and F-Gas logs.
See PPM offerFamily-run since 2011. Every engineer who arrives on your site is Gas Safe registered. Stewat leads the team (License 919290 · Registration 5608537) and is F-Gas / REFCOM certified for the commercial refrigeration work. We don't sub-contract our core trades. Refrigeration, gas, AC and electrics are all delivered by our own team.
Sector, area, scope and outcome.
Refrigerant retrofit programme across 3 units. HP switch replacements, filter dryer renewals, compressor swap on Unit 2.
Commercial gas cooker labelled Danger but still in use. Multiple leaking valve taps, undersized pipework. Cooker isolated and labelled under the Gas Safety Regulations.
Heavily contaminated condenser coil, seized fan motor. Cleaned, freed, tested back to operation. Underlying location issue documented for relocation.
Yes. Around three quarters of our work is multi-site: facilities management contracts, hospitality groups, studio networks. We run quarterly, biannual or annual planned maintenance and respond to emergencies the same day where the diary allows.
CP12 is the landlord domestic Gas Safety Record. CP42 is the commercial Gas Safety Record. They're different forms covering different installations. We issue CP42 records for commercial premises (offices, restaurants, studios, multi-site portfolios). From £150 + VAT per site. Free 30-second checker.
For London commercial customers, same-day where we can, typically within 4–6 hours during working hours. Our 24/7 emergency line covers nights, weekends and bank holidays.
Yes. Stewat is F-Gas / REFCOM certified and routinely handles R407C systems and R448A retrofits. We document refrigerant logs and provide retrofit guidance where appropriate. Free retrofit advisor.
Twickenham (HQ), Richmond, Teddington, central London (City, Old Street, Eastcheap), south-west London (Putney, Clapham), plus parts of Kent and Essex where we have long-running customers. See our coverage map for detail.
Family-run since 2011. Gas Safe registered engineers, F-Gas / REFCOM certified. Same-day London response on most weekdays. Multi-site contracts welcome.
