Preventive Maintenance Schedules: Why PPM Saves Money & Prevents Emergencies

For commercial buildings, the difference between a steady maintenance budget and a run of expensive surprises often comes down to one choice: service equipment on a schedule, or wait for it to break. This guide is for estates managers, facilities teams and business owners responsible for gas boilers, plant rooms and heating systems. If you want to see what a programme looks like in practice, see our planned maintenance service.

What Is Planned Preventive Maintenance (PPM)?

PPM is a programme of inspections and servicing carried out at set intervals, rather than only when something goes wrong. A qualified engineer visits on a schedule to check condition, tune performance and replace wearing parts before they cause a breakdown.

For gas and heating plant, PPM typically covers commercial boilers, gas pipework, burners and controls, pumps and valves, pressurisation units, catering interlocks and ventilation, water treatment, and any building management system (BMS) that runs the heating.

PPM and the Law

The Gas Safety (Installation and Use) Regulations 1998 require employers and the self-employed to keep gas appliances, flues, pipework and safety devices at work in a safe condition. The regulations do not set a fixed timetable. HSE guidance says maintenance should follow the manufacturer's instructions, and treats an annual check by a Gas Safe registered engineer as a reasonable minimum.

Landlords of rented homes, including HMOs and student accommodation, must have an annual gas safety check and keep the records for at least two years. Other duties may also apply depending on your building, such as legionella control under HSE's ACOP L8, and the Pressure Systems Safety Regulations 2000 if you run steam boilers or other pressure systems.

A documented PPM programme is the most practical way to meet these duties and to show that you have.

Why Planned Maintenance Usually Costs Less

A planned visit is booked in advance, done in normal working hours, and uses parts ordered ahead. An emergency repair on the same equipment often involves:

• out-of-hours or urgent callout rates
• parts bought at short notice, sometimes with express delivery
• more than one visit to diagnose and fix the fault
• temporary heating or hot water hire while the plant is down
• the cost of the outage itself: closed areas, unhappy tenants or guests, lost production

Regular servicing also keeps plant running efficiently. Dirty heat exchangers, poorly set burners and drifting controls can quietly push up gas use, and they are exactly what a service visit picks up. Well maintained equipment also tends to last longer, which delays the cost of replacing it.

What a Sensible PPM Schedule Looks Like

Every schedule should be built around the manufacturer's instructions, how hard the equipment works, and how much disruption a failure would cause. A typical commercial gas and heating schedule includes:

• Annually: a full service of each commercial boiler, with combustion (flue gas) analysis, gas tightness checks and safety device testing, plus a gas safety inspection of the installation. Commercial kitchens get a catering inspection recorded on a CP42.
• Twice a year: heating performance checks, often timed before and after winter.
• Regularly through the year: controls, time schedules and BMS settings, pressurisation units, and catering interlocks, at intervals your engineer recommends for your site.
• As your risk assessment requires: water treatment and legionella checks, such as monthly temperature checks on sentinel outlets under HSG274.

Critical or heavily used plant, such as boilers serving care homes, student blocks or production lines, may justify more frequent visits. Lightly used or backup plant may need less.

Keep Good Records

Every visit should be logged with the date, the engineer's name and Gas Safe number, what was checked, any faults found, work done, parts replaced and when the next visit is due. Keep copies of gas safety records and any warning notices, and how they were put right.

Good records help with insurance claims, warranty claims, audits and any visit from the HSE or your local council. They also show trends, such as a boiler that keeps locking out, before they turn into a failure.

How to Work Out the Payback

You don't need an industry average to judge whether PPM is worth it. Use your own numbers:

• Step 1: add up last year's reactive spend on heating and gas: callouts, emergency repairs, hire equipment.
• Step 2: estimate the cost of each outage to your business, such as refunds, lost trading or overtime.
• Step 3: compare those with the quoted cost of a PPM contract for the same equipment.

If PPM prevents even one or two serious breakdowns a year, it often covers its own cost. Your engineer's service reports will also show which assets are close to the end of their life, so you can budget for replacements rather than paying for them in an emergency.

Common PPM Mistakes

• Cutting visits to save money. Savings disappear the first time a preventable failure needs an emergency callout.
• Using the wrong engineer. Gas work must be done by a Gas Safe registered engineer qualified for commercial appliances. Check the back of their ID card.
• Poor record keeping. If visits aren't recorded, you can't prove the work was done.
• Ignoring recommendations. Small issues flagged in a service report are cheapest to fix straight away.

How Adapt Gas Delivers PPM

Adapt Gas is a Gas Safe registered commercial gas and heating company based in Denton, Manchester. We build PPM schedules around your equipment and how you use it, carry out the servicing and gas safety inspections, and log each visit digitally against QR-tagged assets in Adapt Intelligence so your records are in one place. We also offer 24/7 emergency response if something fails between visits.

Find out more about our planned maintenance programmes or call us on 0161 526 5588.