Commercial Boiler Maintenance London

Our commercial boiler maintenance is structured to ensure safe operation, optimal efficiency, and regulatory compliance. Each service visit follows a thorough process tailored to your plant room configuration and equipment condition.

Core Boiler Service Tasks

We carry out detailed inspections and servicing of commercial boilers and associated systems:

• Visual inspection of commercial boilers – Identifying signs of wear, leaks, or corrosion on accessible components

• Combustion and safety control checks – Testing flame failure devices, gas valves, and safety interlocks

• Burner assembly and filter cleaning – Removing carbon build-up and debris to maintain combustion efficiency

• Expansion vessel and pressurisation checks – Verifying vessel pressure and charging levels for correct operation

• System pressure and temperature checks – Monitoring for anomalies that indicate inefficiencies or faults

• Control system testing – Confirming the response of thermostats, zone valves, and timers

• Service reporting – Providing detailed records, including observations, adjustments, and recommendations

Wider Plant Room Maintenance

We maintain a full range of commercial heating and hot water systems:

• Boilers and water heaters – Burner checks, ignition testing, flue inspection, and leak detection

• Calorifiers – Temperature checks, inspection for scale and flow issues, safety valve testing

• Pressurisation units – Vessel pressure testing, control diagnostics, and pump performance checks

• Dosing pots and water treatment – Visual inspection, inhibitor top-ups, and leak assessment

• Pumps, valves, gauges and sensors – Functional testing and condition reporting

• Gas interlocks and control panels – Safety circuit testing, compliance checks, and BMS integration

Our planned maintenance contracts are structured to meet the operational needs and compliance requirements of your building. Visit schedules are based on system type, usage, and risk profile.

Typical Contract Inclusions

• Monthly inspections – Routine visual checks to identify wear or potential failure

• Quarterly system checks – Testing circulation, sensors, and pump performance

• 6-month boiler servicing – Including safety testing and manufacturer-recommended procedures

• Annual water sampling and Legionella analysis – Supporting health and safety compliance

• Logbook management – Ensuring accurate service records and audit readiness

Initial servicing is recommended at contract start to establish a performance baseline. Any faults identified during this visit can be quoted for separately.

Water Hygiene and Legionella Compliance

As part of your heating maintenance contract, we can also provide domestic water system servicing:

• Water sampling from tanks and outlets

• Legionella and potable water testing

• Annual tank cleaning and disinfection

• Compliance logbook supply and updates

These services help meet your obligations under ACoP L8 and relevant HSE guidance for water system safety.

Our maintenance services are designed for organisations responsible for keeping heating systems in safe and efficient working order. We support clients across both single and multi-site properties with planned, compliant boiler maintenance.

• Facilities managers – We provide scheduled boiler servicing to maintain system performance and meet legal responsibilities.
• Property management companies – We help ensure reliable heating across multiple sites through routine checks and servicing.
• Landlords – We assist with preventative maintenance to reduce faults and preserve system warranties.
• School and care home operators – We carry out term-time or scheduled visits to keep systems running safely in sensitive environments.
• Building services contractors – We provide maintenance support as part of wider service agreements or subcontracted packages.

We provide preventative maintenance programmes tailored to each site’s plant configuration, access, and compliance requirements. Contracts often include scheduled inspections, full system servicing, and minor parts replacement.

• Residential estate – Central London
  Monthly boiler inspections and bi-annual service of condensing boilers, Lowara pumps, buffer vessels, and control panels. System documentation and maintenance history were updated after every visit.
  Annual contract value: £13,000

• Secondary school – South London
  Quarterly service visits across term time covering boilers, expansion vessels, controls, and gas safety systems. Burners were cleaned and settings adjusted to maintain safe combustion levels.
  Annual contract value: £8,000

• Care facility – North London
  A tailored annual maintenance plan for communal hot water and heating systems. Visits included safety valve checks, pressurisation unit service, filter cleaning, and condition reporting to support capital planning.
  Annual contract value: £9,000

Routine maintenance plays a key role in maintaining boiler efficiency and preventing energy losses. Scale build-up, poor combustion, and blocked filters can all lead to higher fuel use and reduced performance. Our maintenance checks include combustion analysis, cleaning, and system pressure testing to keep boilers operating within their design efficiency. By maintaining correct burner settings and water quality, we help reduce emissions and extend equipment life, which supports lower environmental impact and operating costs.

We provide scheduled commercial boiler maintenance services for a wide range of buildings across London, including schools, care homes, apartment blocks, and offices. Our engineers are Gas Safe registered and follow manufacturer-approved servicing methods. With a focus on preventative care, we help clients reduce unplanned downtime, improve efficiency, and remain compliant with maintenance obligations. Our service history documentation also supports insurance and regulatory inspections.

Our commercial boiler maintenance services are delivered in line with Gas Safe requirements and boiler manufacturer servicing guidelines. We help clients meet their obligations under workplace safety regulations and local authority inspection frameworks. Engineers carry out maintenance using calibrated equipment, and detailed service records are issued after each visit to support audit and compliance checks. Where required, we advise on remedial works to ensure ongoing system safety.