Commercial Electrical Preventative Maintenance in Chatham-Kent

Postma provides commercial electrical maintenance across Chatham-Kent, Sarnia-Lambton and Windsor-Essex. Panel and connection inspection, emergency lighting testing with records retained, equipment circuit readings and panel documentation, on one schedule with your HVAC and plumbing. Call 519-354-9491.

Commercial Electrical Inspections and Maintenance Plans

Electrical systems fail differently from mechanical ones. There’s usually no noise, no leak and no drop in performance to warn you. A connection loosens over years of heating and cooling cycles, resistance builds, and the first symptom is often the failure itself.

That’s what electrical maintenance is for. It’s the one trade where scheduled inspection is less about extending equipment life and more about finding the faults that give no warning, and about holding the safety records a fire inspector or insurer will eventually ask to see.

What an Electrical Maintenance Visit Covers

Select a category to see the task list.

Panels & Distribution Visual inspection for heat damage, discolouration and corrosion Connection and termination torque verification Breaker condition and operation Panel schedule accuracy, with labelling corrected as we go Clearance around panels confirmed and obstructions flagged Grounding and bonding inspection Enclosure condition, covers and dead fronts secured	Life Safety Systems Emergency lighting function testing Battery pack condition and replacement Exit sign operation and illumination Test records completed and retained for inspection Coverage gaps flagged where the building layout has changed	Equipment Circuits Amp draw readings on major equipment against nameplate Voltage and, on three phase, imbalance checks Motor starter and contactor condition Disconnect operation and labelling Connections at equipment inspected and torqued Readings logged so trends are visible between visits
Lighting Failed and failing lamps and drivers identified and replaced Interior, exterior and parking lot lighting checked Sensors, timers and photocells verified against actual hours High bay fixtures inspected where lift access is already on site Group relamping recommendations rather than one at a time	Standby Power Generator exercise cycle confirmed to be running Battery and starting system condition Transfer switch inspection and operation Fluid levels and visible leaks noted Connections and terminations inspected	Devices & General Receptacles, switches and cover plates in service areas GFCI devices tested where installed Exterior and wet location devices and covers Exposed conduit, boxes and supports Extension cords and temporary wiring flagged for permanent circuits Deficiencies photographed and reported with recommendations

Why Electrical Maintenance Is Different

Reason	Why It Matters
Failures give no warning	A rooftop unit gets noisy before it dies and a pipe drips before it bursts. A loose termination does neither. It heats, degrades and eventually fails or ignites, and inspection is the only thing that finds it in between.
The consequence isn’t downtime	With most trades the worst case is an expensive repair. With electrical the worst case is a fire, an injury, or an insurance claim your carrier disputes because there are no maintenance records.
Life safety has testing requirements	Emergency and exit lighting must be tested and the records kept. Battery packs fail silently, and this is one of the first things a fire inspector asks to see. Buildings routinely discover a problem during an inspection rather than during a test.
Electrical problems look mechanical	Compressors and motors that keep failing early are often being fed a supply problem. Voltage imbalance on three phase equipment quietly shortens motor life and is rarely diagnosed, because the mechanical contractor replaces the motor and moves on.
Documentation has value on its own	A labelled panel schedule and a maintenance history speed up every future job, satisfy prequalification requirements, and are worth having when you’re refinancing, insuring or selling the building.

One agreement, three trades. Electrical inspection, emergency lighting testing and equipment circuit checks can sit on the same agreement as your HVAC and plumbing maintenance, on one schedule and one renewal date. For multi-site portfolios this is usually the reason customers consolidate with us.

Panel Labelling and Documentation

The least glamorous part of an electrical agreement is often the part customers get the most out of.

Most commercial panels are labelled once, at installation, and never updated. Twenty years of tenant changes, added equipment and renovations later, the schedule describes a building that no longer exists. That costs you on every job, because identifying circuits comes before any work can start, and it’s a genuine safety problem when someone needs to isolate a circuit in a hurry.

On buildings under agreement we correct panel schedules as we go, tag what we verify, and keep the record current rather than rebuilding it from scratch every time a contractor shows up. Over a couple of visits the building ends up with documentation it has not had in years.

How Electrical Agreements Are Priced

Factor	Why It Moves the Price
Number of panels	The base driver. Each panel is a separate inspection, and a building with a main plus six sub panels takes considerably longer than one with a single distribution point.
Emergency lighting count	Every unit and exit sign is individually tested and recorded. On large or multi-storey buildings this is often the biggest single line in the visit.
Equipment on the program	Major motors, refrigeration, production equipment and standby power each add readings and checks. Buildings with critical equipment usually want more of it covered rather than less.
Access and shutdown needs	Some inspection can be done live and some needs power off. Where a shutdown window is required, when it can happen affects the price more than the work itself does.
Condition on arrival	The first visit on an undocumented building takes longer than the ones after it, because identifying and labelling circuits is front loaded. It gets cheaper once the record exists.
Number of sites	Portfolios price better than single buildings, because travel and scheduling are consolidated and the compliance calendar is managed once across the group.

Electrical Maintenance FAQ

How often should commercial electrical systems be inspected?

Annually for most commercial buildings. Industrial sites, buildings with heavy motor loads, and anywhere with critical equipment usually warrant more frequent attention on the equipment circuits. Emergency lighting has its own testing requirements that are more frequent than annual.

Does the building need to lose power for a maintenance visit?

Not for most of it. Visual inspection, readings, emergency lighting testing and lighting work are done live. Some panel work requires a shutdown window, and where it does we schedule that around your hours rather than dropping power during business hours.

What do we get after each electrical inspection?

A report per site covering what was inspected, readings taken, work performed, and any deficiency found with a photo and a recommendation attached. Emergency lighting test records are retained so you can produce them when asked.

Are electrical repairs included in the maintenance agreement?

The agreement covers scheduled inspection and testing. Repairs found during a visit are quoted for approval before the work is done, other than small items we can resolve on the spot such as a failed lamp or a battery pack. Agreement customers receive priority dispatch and reduced after-hours rates.

Will you correct our panel labelling?

Yes, as part of the agreement. We correct schedules as circuits are verified and keep the record current rather than rebuilding it from scratch on every job. On buildings that have never been documented this usually takes a couple of visits to get right.

Do you test emergency and exit lighting?

Yes, including function testing, battery pack condition and replacement, and keeping the test records. It’s a life safety system with testing obligations, and battery packs fail without any visible sign.

Can electrical sit on the same agreement as HVAC and plumbing?

Yes, on one schedule, one renewal date and one invoice. It also means the same contractor sees both sides of a problem, which matters when a motor that keeps failing turns out to be a supply issue rather than a mechanical one.

How do we start an electrical maintenance agreement?

Call 519-354-9491 or email contact@postma.ca. We’ll walk the building, inventory the panels, emergency lighting and major equipment circuits, note what is already deficient, and come back with a scoped proposal and an annual price.

See all commercial electrical services, or our commercial electrical repair and emergency service for something that has already failed.

Other commercial electrical services: service and panel upgrades, repair and emergency service and lighting and EV charging.

Want an electrical maintenance proposal? Call 519-354-9491 or send us an address and building type. We'll inventory your panels, emergency lighting and major equipment circuits and come back with a scoped annual price. Electrical can sit on the same agreement as your HVAC and plumbing, with one renewal date. ECRA/ESA Licence #7015639.