BMS maintenance contractsfor London buildings —PPM, SLA and remote monitoring.
Planned Preventive Maintenance contracts with defined SLAs, 24/7 phone response, 2-hour on-site attendance for critical clients, and remote monitoring — so problems are resolved before they become site visits.
BMS Maintenance, explainedwithout the marketing gloss.
BMS maintenance is a contracted programme of planned service visits, remote monitoring, reactive call-out and post-incident review — with defined SLAs and written reports — that keeps a Building Management System delivering the outcomes it was designed to deliver.
Facilities managers, healthcare estates, landlords, managing agents and end-clients responsible for commercial, healthcare, data-centre, retail, leisure, industrial and residential buildings across London and the South East.
Any building whose BMS is more than a year old, running under a lease or occupancy where downtime matters, subject to insurance or regulatory audit, or on the wrong side of a warranty cliff-edge from the original installer.
Without a maintenance contract, a BMS drifts. Sensors go out of calibration, overrides accumulate, back-ups age, alarms stop being answered, and energy consumption creeps quietly upward. A maintenance contract makes the drift someone else's problem.
Rapid call-out support when you need it — and a system kept quietly on-song between visits.
From planned maintenance and reactive support to optimisation, upgrades and lifecycle management, our experienced engineers ensure your BMS remains reliable, efficient and ready to support your building operations.
Regular preventative maintenance keeps your BMS operating reliably and reduces the risk of unexpected faults or performance issues. Our PPM programmes include scheduled inspections, system health checks and verification of key control functions to ensure your building systems continue to operate safely and efficiently. Routine servicing helps identify potential issues early, minimising disruption and extending the lifespan of your BMS infrastructure.
When issues arise, fast and accurate fault diagnosis is critical to restoring system performance. Our engineers provide responsive troubleshooting and support to identify the root cause of system faults, communication failures or control issues within the BMS network. Using a structured diagnostic approach, we resolve problems quickly while ensuring the underlying cause is properly addressed to prevent recurring issues.
Many BMS installations operate below their full potential. Through detailed system review and optimisation, we help ensure your building systems run as efficiently as possible. We assess control strategies, schedules and setpoints to identify opportunities to improve performance, reduce energy consumption and enhance occupant comfort — delivering significant improvements in system efficiency while helping buildings meet sustainability and operational goals.
For critical systems, rapid response can be essential. Our call-out service provides access to experienced BMS engineers who can respond quickly to urgent system issues, helping restore operation and minimise disruption. Whether the issue relates to HVAC control, plant operation or network communication, we work to resolve faults quickly and safely.
As buildings evolve, BMS systems often require upgrades or modernisation to remain effective. We support clients throughout the lifecycle of their BMS infrastructure, from incremental system improvements to larger upgrade programmes — controller upgrades, system expansions, graphics updates and integration with newer technologies — ensuring your BMS continues to support the long-term needs of your building.
A well-maintained BMS is essential for maintaining comfort, efficiency and operational reliability across your building systems. Our experienced engineers provide ongoing support to help ensure your system continues to operate effectively today and into the future.
What happens whenthis gets left alone.
The gap between a serviced BMS and an unmaintained one is measured in energy, downtime and audit exposure.
- Uncorrected sensor drift and stuck valves quietly add thousands of pounds per year to HVAC energy bills.
- Ageing back-ups turn any supervisor failure into a rebuild-from-scratch job.
- Unresolved alarm floods desensitise operators — the alarms that matter get missed.
- No formal SLA means no accountability when the plant does fail — response times slip into days.
- No documented service record means no evidence at insurance, landlord or regulatory audit.
- ×Assuming the mechanical PPM contractor 'covers the BMS too' — they generally don't touch the controls front-end.
- ×Choosing a maintenance provider on price without an SLA in writing.
- ×No remote access to the system — every diagnostic requires a site visit.
- ×No post-incident review after major faults — the same fault reappears in three months.
How we deliverbms maintenance.
- Step 01Site audit
We audit the existing BMS, plant inventory, back-up state, alarm history and prior service records before any contract is written.
- Step 02Contract & SLA design
PPM frequency, response times, deliverables, remote-monitoring scope and reporting cadence agreed in writing.
- Step 03Remote monitoring set-up
Where remote access exists — or where we install it — a monitoring layer is configured for continuous visibility between visits.
- Step 04Planned visits
Scheduled PPM visits at the agreed cadence — full checks, tuning, back-ups and written reports.
- Step 05Reactive & call-out
24/7 phones, on-site within the contracted SLA — typically 2 hours for critical clients, 24 hours for standard reactive.
- Step 06Reporting & review
Monthly / quarterly / annual reporting to the client, with post-incident reviews after major faults to prevent recurrence.
What the right bms maintenanceactually gives you.
PPM frequency, response times and deliverables agreed in the contract — not left to goodwill.
Available for critical clients — including NHS estates — on top of 24/7 phones and 24-hour reactive response for non-critical.
Continuous visibility between visits so many problems are resolved before they become site visits.
Station, database and graphics backed up off-site as part of the contract — recovery is a restore, not a rebuild.
Written reports and audit trail — ready for insurance, landlord and regulatory review.
Phones answered by controls engineers, not a call-handling layer between you and the fix.
Detail thatbuyers ask about.
Maintenance contracts flex to fit sector, building criticality and procurement route:
All maintenance is carried out by controls engineers. Any electrical touches are covered by partner electricians (NICEIC/NAPIT/ECA/ECS/CSCS). Panels remain compliant with BS EN 61439. Cover: £20M PL, £10M EL, £10M PI. Products maintained across the Forest Rock supply chain (Tridium, Distech, ABB, Mitsubishi Electric, Phoenix Contact, iSMA Controlli, Janitza, Circutor, Thermokon, Eastron, SkySpark).
Residential maintenance contracts prioritise landlord-side plant reliability and quiet operation in occupied buildings; commercial and healthcare contracts drive tighter reporting, formal SLAs and evidence-grade documentation.
PPM contracts with 2-hour on-site SLA including out-of-hours — theatres, wards, pharmacies, plantrooms and interlocks.
Multi-tenant metering integrity, landlord/tenant graphics separation, lease-cycle audit readiness and quarterly reporting.
High-integrity alarming, redundancy audits, cooling-sequence proving and tight SLAs on any deviation.
Landlord dashboards, communal-plant reliability, resident comfort feedback and single-line reporting to the managing agent.
Short-term maintenance following a refurbishment — bedding in a new install before it moves to a long-term contract.
Bolt-on scope focused on M&T dashboards, sub-metering integrity and reporting on SkySpark / N4 Energy Manager.
BMS Maintenancequestions, answered.
Anything not covered here? Call us on 07500 040578.
BMS work is bespoke and project-based — pricing is quote on application, issued in writing after a site or specification review.
How are maintenance contracts priced?
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Priced per contract — driven by site size, plant inventory, visit frequency, SLA, remote-monitoring scope and reporting cadence. We don't publish 'from' prices; we quote on application.
What SLAs do you offer?
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SLAs are set per contract. Critical clients — including NHS estates — commonly run on 2-hour on-site response, including out-of-hours. Standard reactive is 24-hour response, on top of 24/7 phones.
Do you offer remote monitoring?
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Yes — remote monitoring and remote access are offered as part of maintenance contracts, so problems can be diagnosed and often resolved before they become site visits.
Can you take on a system you didn't install?
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Yes — most of our maintenance book is on systems we didn't originally install. We work across all major manufacturers and open protocols.
How often are PPM visits?
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Twice-yearly is the pragmatic minimum for a commercial building; quarterly for healthcare, data centres and complex mixed-use sites. Cadence is set in the contract.
Do you provide reporting?
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Yes — monthly, quarterly and annual reporting is available depending on the contract. Every visit closes with a written service report.
What warranty applies to remedial work?
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One-year workmanship warranty on remedial work carried out under the contract, alongside the underlying manufacturer warranties.
Do you back up our software?
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Yes — station, database and graphics are backed up off-site as standard under contract. Recovery from failure is a restore, not a rebuild.
Send us the spec.We'll come back with a fixed scope.
Every bms maintenance enquiry is scoped and quoted in writing — no 'from' prices, no hidden variations, no proprietary lock-in. Response within one working day, sooner for anything urgent.