Commercial Water Heater Service
Service and repair of commercial gas water heaters in the UK — Rinnai, Andrews, Lochinvar and similar continuous-flow and storage water heaters.
Officially RegisteredNeed your annual check booked? Get a commercial gas safety certificate from Gas Safe registered engineers, from £150 + VAT.
About Commercial Water Heater Service
Service and repair of commercial gas water heaters in the UK — Rinnai, Andrews, Lochinvar and similar continuous-flow and storage water heaters.
What's Included in Commercial Water Heater Service
- Burner, flue & DHW checks
- Combustion analysis
- Descale & service report
- All major brands supported
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 Water Heater Service Works
- 1
Get in touch
Call or book online for commercial water heater service 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 Water Heater Service: Quick Answer
We offer service and repair for commercial gas water heaters including Rinnai, Andrews, and Lochinvar in London and the M25 area. Our Gas Safe engineers provide same-day or next-day appointments, seven days a week from 07:00–21:00. Prices for commercial water heater service start from £160 + VAT.
Common Problems We Solve
Commercial gas water heater breakdown
Our Gas Safe registered engineers are available seven days a week, 07:00–21:00, covering London and the M25. We offer same-day and next-day appointments to quickly diagnose and repair commercial gas water heaters, ensuring your business operations can continue smoothly.
Urgent water heater service needed
For urgent issues with your commercial gas water heater, we provide same-day and next-day appointments across London and the M25. Our engineers are Gas Safe registered and work 07:00–21:00 every day to address your needs promptly and efficiently.
Requirement for gas safety certificates
We issue CP15 non-domestic boilers/heating certificates on the day digitally, ensuring compliance with UK law. Our Gas Safe engineers conduct thorough checks of your commercial gas water heaters, providing fixed written quotes with no call-out fee.
Uncertainty about service costs
We offer fixed written quotes for all commercial gas water heater services, with no call-out fee. This transparency ensures you know the exact cost upfront, helping you manage your budget effectively without any hidden charges or surprises.
What People Ask About Commercial Water Heater Service
Can a commercial gas water heater be serviced?
Yes, commercial gas water heaters such as Rinnai, Andrews, and Lochinvar can and should be serviced regularly. Our Gas Safe registered engineers perform service and repair in London and the M25, ensuring safe and efficient operation. UK law requires commercial gas appliances to be checked at least every 12 months.
What types of commercial water heaters do you service?
We service and repair a variety of commercial gas water heaters, including continuous-flow and storage models from manufacturers like Rinnai, Andrews, and Lochinvar. Our Gas Safe engineers are experienced with numerous similar commercial gas water heating systems in London and the M25 area.
How quickly can you attend to a commercial water heater service?
We offer same-day and next-day appointments for commercial gas water heater service and repair. Our Gas Safe registered engineers are available seven days a week, 07:00–21:00, covering London and the M25 to respond to your needs promptly.
What is the cost of commercial water heater service?
Service for commercial gas water heaters starts from £160 + VAT. We provide fixed written quotes with no call-out fee, ensuring transparency. Gas certificates for multiple appliances have additional charges, for example, 1 appliance is £150 ex VAT.
Do you provide gas safety certificates after servicing?
Yes, our Gas Safe engineers issue certificates digitally on the day of service for commercial gas water heaters. This includes CP15 non-domestic boilers/heating certificates, ensuring compliance with the Gas Safety (Installation and Use) Regulations 1998.
Where do you offer commercial water heater service?
We provide commercial gas water heater service and repair across London and the entire M25 area. This includes counties such as Kent, Surrey, Essex, Hertfordshire, Berkshire, and Buckinghamshire, ensuring widespread coverage for your business needs.
What are your operating hours for commercial water heater services?
Our commercial water heater service is available seven days a week, from 07:00 to 21:00. This extended availability allows us to accommodate your business schedule and address any urgent requirements efficiently within London and the M25.
Key Terms
- Gas Safe registered engineers
- London
- M25
- Rinnai
- Andrews
- Lochinvar
- Gas Safety (Installation and Use) Regulations 1998
- CP15 non-domestic boilers/heating certificate
- Kent
- Surrey
FAQs about Commercial Water Heater Service
How much does commercial water heater service 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 water heater service?+
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 water heater service 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.
Do commercial properties need a Gas Safety Certificate?+
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.
Do you need a Gas Safety Certificate for commercial properties?+
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.
Does a commercial property need a Gas Safety Certificate?+
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.
How long does a commercial gas safety certificate last?+
Most commercial gas safety certificates are valid for 12 months from the date of issue, after which re-inspection is required.
Commercial Equipment Brands We Work On
Browse brand-specific service information for equipment related to this commercial gas service.
Other Commercial Gas Services Often Booked With Commercial Water Heater Service
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.
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.
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.
FAQs about related services
Can I book related commercial gas services with my commercial water heater service in the UK?+
Yes — when our engineer attends in the UK for commercial water heater service, 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 water heater service 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 water heater service plus any additional commercial gas works at your the UK premises.
Commercial Gas Safety Certificates We Issue Alongside Commercial Water Heater Service
Every CP-series certificate below can be completed on the same visit as your commercial water heater service.
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 water heater service 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 water heater service?+
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 Water Heater Service?
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