What Boulder homeowners actually say.

Our furnace died Sunday at 9pm in January. I expected an after-hours fee and a wait — Marcus picked up himself, was at the house in 40 minutes, had heat back on before midnight. Flat invoice, no surprises.

Got a $14,000 replacement quote from another shop. Hearthstone came out, found a $90 sensor, replaced it, and we paid the diagnostic. They could've sold us a new system. They didn't.

Joined the HearthGuard plan after our first repair. Last spring's tune-up caught a slow refrigerant leak before summer hit. That's why we pay $34/mo.

We added a cold-climate heat pump to replace an aging gas furnace. Jordan walked us through the rebate paperwork, did the load calc honestly (no oversized 'better safe' upsell), and the install crew was meticulous. House feels better than ever.

First wildfire-smoke summer in our new house — Hearthstone retrofitted a MERV-13 filter system in two hours. We breathed normally inside while it was orange outside.

Our 1962 boiler started leaking on a Saturday morning. They had Priya out by noon — diagnosed a corroded relief valve, sourced the part locally, fixed it before dinner. Same flat rate as a Tuesday call.

Smart thermostat install I'd been putting off for a year. They came out, did it cleanly, set up the schedule with us, didn't try to add anything else. $189 in and out. The kind of small job most shops won't bother with.

CO test on a routine fall tune-up caught a cracked heat exchanger we had no idea about. Priya walked us through the safety implications, gave us the repair-vs-replace math in writing, and we made the call ourselves. Probably saved someone's life.

Needed a mini-split added to a converted sunroom. Got three quotes — Hearthstone wasn't the cheapest, but was the only one that explained why undersizing would void the warranty. We picked them. Two years in, zero issues.

My elderly father was nervous about strangers in the house. The tech (Priya) introduced herself at the door, showed her license, took her shoes off without being asked, explained every step. He's been a customer for two years now.

Pre-listing tune-up before we sold the house. Inspector flagged it as 'recently serviced by Hearthstone, full paperwork' and waved through the HVAC section. Closing on time mattered more than I expected.

We have three rentals plus our primary. HearthGuard multi-system plan saves us probably $2,000/year compared to what we used to pay piecemeal — and the priority dispatch means our tenants don't sit without heat.

I'm a single mom and my AC quit during the 95° week last July. They had me on the schedule the same day, the technician explained the repair in plain language, and there was no upsell pressure even though my unit is old. Felt respected, not sold to.