Nusret Steakhouse, Knightsbridge
101 Knightsbridge, London SW1X
Completed October 2026
Post-fire gas safety inspection: kitchen supply line checked for tightness and integrity.
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Same-Day Certificates Available
Commercial Gas Safety
Certificates Sorted For You
Same-day commercial gas safety certificates from £150 + VAT across London & the M25, by Gas Safe registered engineers.
We arrange Gas Safe registered engineers to inspect, test and certify commercial gas appliances — for restaurants, offices, landlords and multi-site operators across London and the UK.
Tell us what you need, get a fast quote, and we'll send the right engineer — with your CP42, CP17 or CP44 certificate issued the same day.
Gas Safe Registered
Same-Day Certificates
Fully Insured
London & Home Counties
Google5/5 (547 reviews)
Gas Safe Registered
5000+ Jobs Completed
Officially RegisteredReg. No. 197564Two trades, one visit
Gas Safe + F-Gas registered — combine your gas certificate with AC service or refrigeration repair in the same call-out.
Air Conditioning Installers
Supply and install split, multi-split and VRV systems for offices, shops and restaurants.
View installers →Commercial Refrigeration Repair
Fast repairs for walk-in fridges, freezers, display cabinets and cold rooms.
View refrigeration repair →Air Conditioning Service
Annual F-Gas checks, filter cleans and leak testing to keep systems compliant.
View AC service →Specialist services
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Gas Safe Registered
Every engineer holds a valid Gas Safe registration
Same-Day Certificates
Issued on the spot — no delays, no follow-ups
London-Wide Coverage
All boroughs plus the Home Counties
Open 7 Days a Week
Early mornings, evenings, and weekends
F-Gas Certified Engineers
REFCOM F-Gas registered for AC & refrigeration
TM44 Accredited Assessors
Air-conditioning energy assessment compliant
Refrigerant Handling Category I
Qualified to recover, charge and leak-test refrigerant
Official Gas Safe Register
The Only Legally Recognised Gas Safety Record
Every certificate we issue is the official Gas Safe Register document — the only proof of compliance recognised by HSE, insurers, councils and landlords across the UK.
- Issued by Gas Safe registered engineers only
- Covers all appliances, flues and pipework
- Accepted by HSE, councils & insurers nationwide
- Digital and paper copies provided same day
What Is a Commercial Gas Safety Certificate?
A commercial gas safety certificate is a legal document that proves every gas appliance, fitting, and flue in your business premises has been inspected and found safe by a Gas Safe registered engineer. Under the Gas Safety (Installation and Use) Regulations 1998, all commercial premises using gas must hold a valid certificate.
The certificate covers boilers, water heaters, ovens, grills, fryers, warm air heaters, and any other gas-fired equipment on your premises. After a thorough inspection, the engineer records their findings and issues the appropriate certificate — such as a CP42 for commercial catering, CP17 for new installations, or CP44 for mobile catering units.
Who Needs a Commercial Gas Safety Certificate?
- Restaurants, cafes, pubs, and takeaways with commercial cooking equipment
- Hotels, B&Bs, and serviced apartments with gas-fed heating or hot water
- Offices, shops, and warehouses with gas boilers or space heaters
- Schools, hospitals, care homes, and public buildings
- Food trucks and mobile catering trailers using LPG
- Holiday parks, marinas, and leisure accommodation
What Happens During the Inspection?
Our Gas Safe registered engineer will check every gas appliance for safe operation, inspect the pipework for leaks, test flue performance and ventilation, and verify the gas meter isolation valve. Each appliance is tested under load and at standing pressure. If everything passes, you receive your certificate on the spot. If a fault is found, the engineer will explain the issue and provide a quote for remedial work. Read more about our inspection process and guarantees.
For maintenance planning and the difference between servicing and safety checks, read our commercial gas servicing frequency guide.
Our Services
Every type of commercial gas certificate — issued same-day by Gas Safe registered engineers.
Commercial Gas Safety Certificates
Full inspection and certification for offices, shops, warehouses, and commercial premises with gas-fed heating or hot water systems.
View details →Catering & Kitchen Gas Certificates
Dedicated inspections for professional kitchens — restaurants, cafes, takeaways, hotels, schools, and hospitals with commercial cooking equipment.
View details →Mobile & LPG Catering Certificates
Specialist LPG certification for food trucks, market stalls, catering trailers, and any mobile unit that relies on bottled gas for cooking.
View details →Air Conditioning & Refrigeration
F-Gas certified AC service, refrigeration repair, and air conditioning installation — booked alongside your gas certificate in one visit.
View details →Customer Reviews
What our clients say about our gas safety services
5.0
547 reviews on Google
J
James P.
3 weeks agoBooked a commercial gas safety certificate for our restaurant kitchen. The engineer arrived on time, tested all five appliances, and handed us the certificate before he left. Couldn't ask for more.
S
Sarah K.
1 month agoNeeded an urgent CP42 certificate for an Environmental Health inspection the next day. They sent an engineer the same evening and we had everything sorted by morning. Lifesaver.
D
David M.
2 months agoWe manage several commercial properties across London and use these guys for all our annual gas safety certificates. Reliable, competitively priced, and always flexible on timing.
P
Priya R.
3 months agoHad our mobile catering trailer inspected for a CP44 certificate ahead of festival season. The engineer was thorough, explained every check, and the price was exactly as quoted.
Commercial Gas Safety Certificate Prices
All prices are exclusive of VAT. No call-out fees, no hidden extras.
Commercial Gas Safety Certificate (1 appliance)
£150
A single boiler in an office building.
Commercial Gas Safety Certificate (2 appliances)
£175
A boiler and cooker in a nursery kitchen.
Commercial Gas Safety Certificate (3 appliances)
£200
A boiler, cooker, and grill in a restaurant.
Commercial Gas Safety Certificate (4 appliances)
£225
Grill, cooker, water heater, and boiler in a hotel.
| Service | Price (ex VAT) |
|---|---|
| Commercial Gas Safety Certificate (1 appliance) | £150 + VAT |
| Commercial Gas Safety Certificate (2 appliances) | £175 + VAT |
| Commercial Gas Safety Certificate (3 appliances) | £200 + VAT |
| Commercial Gas Safety Certificate (4 appliances) | £225 + VAT |
Types of Commercial Gas Safety Certificate
Select a certificate to view the full inspection checklist, legal requirements, and pricing.
CP2
Leisure & Holiday Accommodation
Motorhomes, caravans, boats, holiday parks, and marinas.
View checklist & details →
CP15Plant Commissioning
New commercial boilers, warm air heaters, and industrial plant.
View checklist & details →
CP16Pipework Testing & Purging
New or modified commercial gas pipework systems.
View checklist & details →
CP17Installation Certificates
Every new commercial gas appliance installation.
View checklist & details →
CP42Commercial Catering
Restaurants, cafes, takeaways, hotels, pubs, and canteens.
View checklist & details →
CP44Mobile Catering & LPG
Food trucks, market stalls, and catering trailers.
View checklist & details →
Commercial Gas Safety Certificate Inspection Process
Our Gas Safety Inspection Process
1
Thorough Visual Assessment
Our engineer examines every gas appliance, pipe run, and fitting for wear, corrosion, or non-compliant installation before any testing begins.
2
Pipework Integrity Testing
We pressurise the gas pipework downstream of the meter and monitor for any drop, confirming no leaks exist within your installation.
3
Flue & Ventilation Checks
We verify that all flues draw correctly and combustion gases are safely evacuated, protecting your premises from carbon monoxide build-up.
4
Combustion Performance Analysis
Using calibrated flue-gas analysers, we measure CO, CO₂, and O₂ concentrations to confirm each appliance burns efficiently and within safe limits.
5
On-the-Spot Certification
Once every check passes, your Gas Safe registered engineer issues the relevant certificate immediately — no waiting, no follow-up visits.
Scope of the Inspection — From the Meter Onwards
Downstream of the Gas Meter Only
By regulation, our engineers inspect and test the gas installation from the outlet of the gas meter onwards. Everything upstream — the service pipe and the meter itself — falls under the gas transporter's responsibility.
Included in the inspection:
- ✓ All internal gas pipework from the meter to each appliance
- ✓ Every connected gas appliance (boilers, cookers, heaters, etc.)
- ✓ Isolation valves and emergency controls
- ✓ Flue systems, ventilation openings, and extraction
- ✓ Operating pressure at each appliance
Not included:
- ✗ The incoming supply pipe before the meter (gas transporter's asset)
- ✗ The gas meter itself (owned by your gas supplier)
- ✗ Any leak or fault on the supply side of the meter
Suspect a gas leak before the meter? Call the National Gas Emergency Service on 0800 111 999 immediately — it is free and available 24/7.
Understanding Inspection Outcomes
Every appliance inspected receives one of three classifications. Knowing what each means helps you respond quickly and keep your business running safely.
Satisfactory
The appliance meets all current standards and is safe to operate. Simply schedule your next annual check and continue trading with confidence.
At Risk (AR)
The appliance falls short of current standards but poses no immediate threat to life. Continued use is at the responsible person's discretion while remedial work is arranged promptly.
- • Ventilation below recommended levels
- • Minor flue joint deterioration
- • Overdue servicing or worn seals
- • Damaged flame supervision device
Immediately Dangerous (ID)
The appliance poses an immediate risk to life. The engineer must disconnect and isolate it on the spot. Reconnection is only permitted after a qualified repair and a fresh safety inspection.
- • Active gas leak detected
- • Blocked or severed flue
- • Dangerously high CO readings
- • Flame failure device bypassed
- • Critical ventilation deficiency
We also service the equipment we can't certify — fridges, freezers and AC. One call, one engineer team.
Commercial Gas Safety Certificate FAQs
What is a commercial gas safety certificate?
A commercial gas safety certificate is a legal document issued by a Gas Safe registered engineer after inspecting all gas appliances, pipework, and flues in a commercial premises. It confirms that everything meets current safety standards and is safe to use. See our price list for each certificate type.
Read moreHow often do I need a commercial gas safety certificate?
UK law requires commercial premises to have gas appliances inspected at least once every 12 months. Some insurers and local authorities may require more frequent checks. Read our full guide on gas safety certificate legislation.
Read moreHow much does a commercial gas safety certificate cost?
Our prices start at £150 + VAT for a single appliance, with discounts for multiple appliances. View our full pricing structure for exact costs based on your setup.
Read moreWhat areas do you cover?
We cover all London boroughs plus the Home Counties including Essex, Kent, Surrey, Hertfordshire, and Berkshire. Contact us to check availability in your area.
Read moreCommercial Gas Certificates Across London & the M25
We provide commercial gas safety certificates across London and the surrounding Home Counties — Surrey, Kent, Essex, Hertfordshire, Buckinghamshire, Berkshire, Sussex, Hampshire, Bedfordshire, Cambridgeshire, and Oxfordshire. Same-day service from Gas Safe registered engineers.
LondonWestminsterKensington & ChelseaSouthwarkTower HamletsLambethGreenwichHammersmith & FulhamSevenoaksCrawleyHorshamGuildfordMaidstoneChelmsfordWatfordReading
Book direct: commercial gas safe certificates Sevenoaks · commercial gas safe certificates Westminster · commercial gas safe certificates Reigate · commercial gas safe certificates Oxted · commercial gas safe certificates Horsham · commercial gas safe certificates Haywards Heath · commercial gas safe certificates East Grinstead · commercial gas safe certificates Brighton · commercial gas safe certificates Harrow
Recent projects
Keats Group Practice, Hampstead
1B Downshire Hill, London NW3
Completed May 2025
Annual commercial check; CP15 certificate issued for both appliances.
Read more →Ready to Book Your Commercial Gas Safety Certificate?
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
Commercial gas safety certificate: your questions answered
Commercial gas safety certificate starts from £150 + VAT, with a fixed written quote agreed before any work begins and no hidden fees.
How much does commercial gas safety certificate cost?
Commercial gas safety certificate starts from £150 + VAT, with a fixed written quote agreed before any work begins and no hidden fees.
Who carries out commercial gas safety certificate?
Commercial gas safety 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 commercial gas safety certificate?
We cover commercial gas safety 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 · gas tightness testing · commercial boiler servicing