Heating and cooling, explained by a guy who's actually done the work.
I'm Mike. I've been in the HVAC trade for over 30 years — crawl spaces, attics, hundred-degree rooftops, all of it. These guides are the advice I give my own neighbors: what stuff really costs, when to repair and when to replace, and how to spot a bad quote before you sign it.
Mike Sullivan · HVAC contractor since 1993
If you already know you need work done, skip the reading. Answer a few quick taps and I'll match you with licensed installers that cover your ZIP — free, no strings.
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Start with these guides
How Much Does a New HVAC System Cost in 2026?
Real numbers, what drives the price, and why quotes vary so much.
Heat Pump vs. Furnace: Which One Is Right for Your Home?
I install both. Here's how I'd choose for my own house.
Why Is My AC Bill So High?
The 6 usual suspects — and the one most companies won't mention.
7 Signs Your Furnace Is on Its Way Out
Catch it in the fall, not at 2 a.m. in January.
HVAC Rebates in 2026: What's Actually Still Available
The federal tax credit is gone. Here's what's left — honestly.
How Long Does an HVAC Install Take?
Hour-by-hour, what a good crew does in your home.
Why listen to me?
Because I've got nothing to sell you here except good information. I started in this trade in 1993 sweeping the floor of my uncle's shop. I've run my own crews, trained apprentices, and quoted thousands of jobs. I've seen homeowners get treated fair, and I've seen them get taken for a ride.
These days, Nation Air Con is how I help folks outside my own service area: we check your job details and connect you with licensed local installers we'd trust with our own homes. The service is free to you. The installers pay us for the introduction — full disclosure here — and that never changes what you pay.
Need heating or cooling work?
Tell me about the job and I'll line up licensed local pros to quote it.
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