To get your home standby generator ready for a Texas freeze: schedule annual service before winter, confirm your fuel supply, keep the unit clear of ice and debris, test it under load, and make sure a cold-weather kit is installed if you’re in a hard-freeze area. Do it before the forecast turns — not when the storm is already here.
1. Service it before winter
A freeze is the worst time to discover a problem. An annual service (oil, filters, battery, full operational test) makes sure your generator will actually start and carry the load when the grid goes down. See our Generac maintenance schedule.
2. Check your fuel
On natural gas, confirm the line and pressure are good. On propane, top off the tank — a multi-day freeze can run through more fuel than you expect, and deliveries slow down during storms. Size your supply for several days of winter running.
3. Protect the battery (the #1 cause of no-starts)
Cold weather is hard on batteries, and a dead battery is the most common reason a generator fails to start. If you’re in an area that sees hard freezes, make sure a cold-weather kit (battery warmer) is installed and the battery is healthy going into winter.
4. Keep it clear
Snow, ice, and debris can block airflow and exhaust. Keep the area around the unit clear so it can run safely throughout a storm.
5. Test under load
Let it run a full self-test (or have us test it under load) so you know it powers what you need — heat, water, and essentials. Confirm it’s sized for your heating system; if you’re unsure, check what size generator you need.
Frequently asked questions
Do standby generators work in freezing weather?
Yes — they’re built for outdoor, year-round operation. In hard-freeze areas a cold-weather kit (battery warmer) helps ensure reliable cold starts.
Do I need a cold weather kit for my generator in Texas?
If your area sees hard freezes like 2021, a cold-weather kit is strongly recommended — it keeps the battery and engine warm enough for dependable starts.
When should I service my generator before winter?
Ideally in the fall, before the first freeze forecast, so any issues are fixed while parts and appointments are easy to get.
Want us to winter-ready your generator before the next freeze? Book a service visit — Texas Star Power, serving Houston and Montgomery County.