A system that's short-cycling, tripping breakers, or throwing an error code isn't something to fix by trial and error. Testing comes before parts get ordered, on every Corunna call.
Most calls we get for Hvac Repair trace back to a short list of failure points — a weak capacitor, a pitted contactor, a control board acting erratically. A proper meter check separates a cheap fix from an unnecessary expensive one, and we'd rather find the $150 answer.
Standards that hold on every call, no exceptions.
Licensing, EPA certification, and insurance travel with every technician we send — we don't outsource this work.
Because we stage trucks close to Corunna, most calls land a same-day or next-morning window instead of a week-long wait.
You approve a fixed price before we touch anything, and that price doesn't move once work begins, agreed to upfront.
Every truck carries manifold gauges, amp clamps, and combustion analyzers, so the fault gets measured, not assumed.
The repairs behind most of our service calls.
The first move is isolating exactly which of these failed: capacitor, contactor, thermostat call, or charge level.
Most no-start situations trace to a bad capacitor, and we confirm it with an actual meter reading before replacing anything.
High amp draw or a seized bearing on the blower motor shows up as weak airflow or a burning smell, and we test the windings before recommending replacement.
A miscalibrated thermostat or a glitchy control board can mimic a much bigger failure than it actually is, and we rule these out before quoting anything larger.
Electronic detectors and UV dye find the actual leak point, instead of just topping off refrigerant and hoping, because a top-off without finding the source only buys a few weeks.
Ignitor resistance, flame sensor microamp signal, and gas valve response all get tested before a furnace gets condemned, since a dirty flame sensor is a five-minute fix, not a new furnace.
What happens once you dial in.
Describe the symptom and we route the nearest available tech — no phone tree to navigate.
You get a fully equipped truck, on time — not a vague all-day estimate.
Full diagnostic first, flat-rate quote second, your approval before we touch anything.
Same-visit completion in most cases, covered by our warranty.
Unedited feedback from our Corunna customers.
Breaker kept popping every time the blower kicked on. Turned out to be a shorted wire nobody had caught in two prior visits from other companies.
— N. Okafor, homeowner
Appreciated getting a text with a two-hour window instead of the usual 'sometime this afternoon.' Tech was right on time.
— V. Delgado, property manager
System was cycling on and off every few minutes. They traced it to a thermostat wiring issue, not the compressor everyone assumed it was.
— L. Whitfield, homeowner
Third HVAC company we've tried for our small office building. First one to actually pull a service history instead of starting from zero each visit.
— C. Abernathy, office manager
What Corunna customers ask most.
Most calls get a same-day or next-morning slot, with a text update once the tech is en route, and dispatch texts you once the tech is moving.
There's a set diagnostic charge, disclosed when you book, and it's subtracted once you approve the fix.
Measurement comes before the quote, so you're never charged for an assumption.
No — the flat-rate quote holds unless new work is discovered and you approve it separately unless something new turns up and you sign off on it.
Gas and electric equipment are both covered equally.
We service whatever's already installed, regardless of who put it in.
Coverage extends through Corunna and the nearby zips listed here.
Call +1-844-611-2875
