When your AC dies at 9 PM in an Alabama summer, you need someone who picks up. G & N Heating and Cooling is a Trane authorized dealer rooted in a North Alabama family with 50+ years in the HVAC trade. We answer the phone.
From a quick repair to a full Trane system installation — we handle everything your home needs to stay comfortable year-round. And when it's an emergency, we come to you.
Not cooling right? Making strange noises? We diagnose fast and fix it right. We carry common parts on the truck so most repairs get done the same day.
When your old system has hit its limit, we'll walk you through your options honestly. As a Trane authorized dealer, we can get you into a high-efficiency system that actually fits your home and budget.
Furnace not kicking on? Heat pump running but not heating? We troubleshoot and repair all heating systems before the cold weather makes life miserable.
Whether you're building a new home or upgrading an outdated system, we do the full installation right — proper sizing, clean ductwork connections, and a system that runs efficiently from day one.
Not every HVAC company earns the Trane dealer designation. It means we're trained to install, service, and warranty Trane systems properly — so if you're investing in a new unit, you're getting the right installation to back it up.
The Garrison name has been synonymous with North Alabama HVAC for over 50 years. G & N Heating and Cooling carries that legacy forward — the same family, the same values, and the same commitment to honest work and fair pricing that built the reputation in the first place.
We're based on WT Garrison Lane in Huntsville — yes, that's a family street — and we serve homeowners across the North Alabama region. When you call us, you're talking to someone who grew up in this trade, not someone reading a script.
Whether it's a routine tune-up or a middle-of-the-night emergency, we pick up the phone. That's not marketing — it's just how we operate.
"My AC went out on a Saturday evening. I called G & N and they were at my house within two hours. Had it fixed before bedtime. These guys are the real deal."
"We needed a full Trane system replacement. The team was professional, explained everything, and the house has never been more comfortable. Pricing was very fair."
"I've used the Garrison family for HVAC work for 20 years. G & N carries on that tradition — same honesty, same quality. Won't call anyone else."
For emergencies, call directly. For estimates or routine service, call or fill out the form and we'll get back to you the same day.