We have run a January no-power dispatch log for four winters now. The pattern is consistent. Most of the calls trace back to something that was already visible in October - a generator battery that did not get its annual swap, a heat trace GFCI that had been tripping all summer, a service mast leaning at an angle that should have been corrected before the ice came. The pre-winter electrical inspection is the cheapest service call any homeowner books all year, because the work it prevents is the most expensive work we do.
What we actually cover
This is an hour on site for an average residential property, longer for cottages with detached boathouses or generators. The work is hands-on, not just visual - thermal scan, torque verification, function tests. Six stations:
1. The service entrance
- Service mast plumb check - any visible lean means the splice at the weatherhead is stressed.
- Weatherhead gasket and conductor sheath - cracked or chewed insulation entering the weatherhead is a Hydro One coordination call.
- Meter base - looking for rust streaking, glass-face arc damage, or moisture inside the meter pan.
- Service-entrance cable - any visible jacket damage in the run from meter to panel.
2. The panel
- Dead front off (qualified work only) and a thermal scan across the bus, the main lugs, and every breaker landing. Hot spots that should not be hot are where panel fires start.
- Torque check on the main lugs and the highest-load breaker terminations. Aluminum service-entrance landings especially - these creep over years and need re-torquing.
- Visual inspection for any breaker discoloration, soot, melted insulation at the landings, or rodent evidence inside the panel.
- GFCI and AFCI test on every protected breaker - press TEST, confirm trip, reset.
- Panel cover back on, panel legend verified against actual circuits.
3. The generator (if equipped)
This is the station that prevents the most expensive January calls. We covered the failure modes in detail in our generator fall prep 2027 post; for the pre-winter visit:
- Battery load test under cranking conditions. A battery that reads 12.6V at rest can still fail under crank. Most cold-snap no-starts trace back here.
- Oil level and oil age. Synthetic 5W-30 if the unit will see -25°C. If the oil is 18 months old, swap it.
- Air filter inspection. Mouse damage to the filter element is common on Muskoka installs.
- Manual start, run for 10 minutes under load. Listen for governor hunting, exhaust irregularity, any abnormal sound.
- Exercise cycle setting verified in the controller - and the cycle confirmed actually running on the schedule.
- Transfer switch test under live load - kill the utility breaker, confirm transfer time, generator picks up, transfer back.
4. Surge protection
- Type 2 surge protector at the panel - status LED check. The 2024-vintage units we installed have a green LED that goes amber or red as the MOV stack degrades. A used-up surge protector still passes current; it just no longer protects.
- Type 1 protector at the meter (if installed) - similar status check.
- Strike counter on units that have one - a count meaningfully above zero in a year tells you the protector did its job.
5. Heat trace and exterior circuits
- GFCI TEST and reset on every exterior receptacle and every heat trace circuit. End-of-life GFCIs found here.
- Insulation resistance test on heat trace cable runs that have been in service more than five years - covered in detail in our heat trace replacement cycle post.
- Outdoor receptacle covers - in-use covers intact, gaskets present, no water inside the box.
- Walk the exterior lighting - any failed driver, any cracked fixture, any anodized aluminum that has finally finished rusting through.
6. Detectors and life-safety
- TEST button on every smoke and CO detector.
- Manufacture date check on every detector - 10 years for smoke, 7-10 for CO depending on the model. Past-date detectors get replaced.
- Battery swap on any non-sealed unit.
- Interconnect verification on hardwired interconnected systems - press TEST on one, confirm every other detector in the home sounds.
What we typically find
Across an average pre-winter visit, the findings break down roughly:
- Always: at least one detector past its service date.
- Usually: a GFCI at an exterior or heat-trace circuit that will not reset properly.
- Often: a generator battery on its last winter, or oil that has aged out.
- Occasionally: a panel landing torque value off-spec - especially on aluminum mains.
- Rarely but consequentially: a service mast that has shifted, a heat trace cable that is functionally dead, or a panel hotspot that would have started a fire in February.
The "rarely but consequentially" category is what justifies the visit. The other findings are routine maintenance. The big one is why we do the thermal scan.
What this is not
It is not an ESA Certificate of Inspection. It is a documented working inspection by an LEC with photos and a written report. Insurers usually accept it for renewal-cycle documentation; if your insurer specifically requires a CoI we pull a permit and an ESA inspector follows. For most homeowners and cottage owners the working inspection is what they actually need.
It is also not a guarantee against winter problems. A panel hotspot that develops in December was not detectable in October. A tree that comes down on the service drop in February was not foreseeable. The pre-winter inspection narrows the surface, it does not eliminate it.
Timing - why October
Booking this in early October versus late November is the difference between fixing what we find before the freeze versus fixing it after it has already failed once. The generator battery we find on its last legs in October gets replaced the same week. The same battery found in late November after a no-start call gets replaced in conditions where the trucks are already running flat-out.
Cottage owners: this visit pairs naturally with the cottage closing checklist for properties that close in the fall, or as the second-to-last visit of the season for properties that stay occupied into winter.
When to call us
We do scheduled pre-winter electrical inspections across Huntsville, Bracebridge, Gravenhurst, Port Carling, and Baysville for cottages, and across the Golden Horseshoe for homes. Documented report, photos of any findings, and a written quote on any corrections beyond what we can do in the same visit. Book a pre-winter inspection before November fills up.