Your HVAC system runs hard. When it fails, the discomfort is immediate. HVAC Repair CO's licensed technicians reach Corunna fast, carrying the most common replacement parts on every truck so most repairs close on the first visit.
Who We Are
HVAC Repair CO has been showing up across Corunna, IN when heating and cooling systems fail — not with a sales pitch, but with tools, parts, and the know-how to actually solve the problem. Our technicians are NATE-certified, background-checked, and trained on every major brand: Carrier, Trane, Lennox, Rheem, York, Goodman, and more.
Whether you're dealing with a unit that won't turn on, refrigerant levels that keep dropping, or a system that's been struggling through multiple repair visits, HVAC Repair CO takes a diagnostic-first approach. We figure out the root cause, not just the symptom, before we recommend any work.
Don't Ignore These
Your system will tell you when something's wrong. Here's what to listen and look for — and what each symptom typically means.
If your AC is running but pushing warm air, the most common culprits are low refrigerant charge, a failed compressor, or a seized reversing valve. Each requires a licensed technician to diagnose and correct.
Short-cycling wears out your compressor faster than almost any other operating condition. Common causes include an oversized unit, a dirty evaporator coil, refrigerant issues, or a faulty thermostat — a tech can narrow it down in one visit.
A well-maintained HVAC system runs quietly. Any new or persistent noise — grinding, squealing, or metallic clanking — deserves immediate attention before a minor issue becomes a major failure.
A sudden jump in electricity bills without a change in usage patterns almost always means your system is losing efficiency — dirty coils, low refrigerant, clogged filters, or a struggling compressor all cause the unit to run longer cycles and burn more power.
Ice on refrigerant lines or the evaporator coil indicates airflow restriction or refrigerant undercharge. Oily residue near line sets or connections signals a refrigerant leak — which is both an environmental issue and a system killer.
Inconsistent temperatures across Corunna homes usually trace back to duct leakage, improperly balanced dampers, a failing zone controller, or a unit that's the wrong size for the load. A proper load calculation and duct inspection can identify the cause.
What We Do
One call to HVAC Repair CO handles repairs, installations, maintenance, and indoor air quality — so you're not managing three different contractors for one building.
HVAC emergencies don't follow office hours. A compressor that seizes at 11 p.m., a heat exchanger that cracks in February, or a refrigerant leak discovered on a holiday weekend — these can't wait until Monday. HVAC Repair CO dispatches within the hour on confirmed emergency calls, with a fully stocked truck and a licensed technician who can handle the repair, not just diagnose and reschedule.
Equipment selection is one piece of the installation puzzle. Duct sizing, refrigerant line routing, electrical service, thermostat calibration, and commissioning are where most installations either succeed or quietly fail. Our installation crews are the same technicians who run our service calls — they understand what goes wrong in the field and build against it from the start.
Our maintenance agreements prioritize your system in our schedule, lock in your rate, and include priority emergency dispatch — because maintenance customers who know their system is serviced regularly are also the first ones we want to reach when something goes sideways. The math is simple: a tune-up costs less than one repair call.
Commercial properties in Corunna face IAQ challenges at scale — higher occupancy, more CO₂ buildup, stricter ASHRAE ventilation requirements. We assess, spec, and install commercial-grade IAQ solutions that integrate directly with your existing air handling equipment.
A commercial HVAC failure isn't just uncomfortable — it closes operations, violates health codes, and costs money every hour it's unresolved. HVAC Repair CO's commercial technicians are trained on rooftop package units, split systems, variable air volume (VAV) systems, chilled-water systems, and commercial kitchen refrigeration across all major manufacturers including Daikin, York, Trane, Carrier, and Lennox.
Simple Process
No automated phone trees, no week-long scheduling windows, no surprise costs after the work is done. Here's exactly how a HVAC Repair CO service call runs.
Our dispatchers are trained to ask the right questions upfront so the technician arrives with the likely parts already on the truck — cutting your repair time significantly.
The nearest available licensed technician gets routed to you. You'll get an arrival window — typically one to two hours on standard calls, often under one hour on confirmed emergencies in Corunna.
Flat-rate means the price you approve is the price you pay. No hourly meter running while they're digging for the right part. No surprise labor additions at the end.
You sign off only when the system is running to your satisfaction. We leave the site clean, and our work carries a written labor warranty.
Why HVAC Repair CO
We're not asking for your trust based on marketing language. We're asking you to measure us against these specifics — and hold us to them.
We don't send apprentices solo or dispatch people who aren't certified. When a HVAC Repair CO truck pulls up, the person getting out of it is qualified to diagnose and fix the system — not just describe what's wrong and quote a replacement.
Hourly billing in HVAC has one predictable outcome: longer jobs cost more, and the customer has no visibility into what drives the total. We moved to flat-rate pricing for exactly this reason. You get a single number for the repair before the wrench turns — and that number doesn't change based on how long it takes.
The most common frustration in HVAC service: technician diagnoses the problem, then has to leave and come back two days later with the part. We stock every truck with the components that fail most often — capacitors, contactors, motor run capacitors, fan motors, pressure switches, blower wheels, thermostat controls, and common refrigerant supplies.
If a repair we complete fails again within the warranty period due to our workmanship, we come back and correct it at no charge. This is in writing on every invoice — not a verbal assurance you can't enforce.
Our business runs on repeat calls and referrals, not one-time replacement sales. That changes how we think about every recommendation we make in Corunna homes.
One account relationship, one billing contact, one service history for all your properties across IN.
Our Commitment
We also guarantee the diagnostic accuracy of every service call. If we recommend a repair and after completing it the root cause turns out to be something different, we don't bill you for the additional correction — that's our diagnostic error, not yours.
This guarantee isn't a policy designed to be hard to invoke. It's a standard we hold ourselves to because our reputation in Corunna depends on it. Call us, describe what's happening, and we'll make it right.
Call +1-844-611-2875What Customers Say
My AC went out on one of the hottest nights of the year. HVAC Repair CO had someone here by midnight and the unit was back up and running before 2 a.m. The price matched what I was quoted on the phone — no additions at the end. Genuinely impressive response.
★★★★★
I was quoted $8,000 for a new system by two different companies. HVAC Repair CO found a failed TXV valve and refrigerant leak. Fixed both, recharged the system, and it's been running strong. The tech explained everything and showed me the readings before and after. Night and day from what I'd been told elsewhere.
★★★★★
Running a multi-unit building, HVAC downtime directly impacts tenant satisfaction. HVAC Repair CO's maintenance plan cut our reactive calls significantly — and when something does come up, they prioritize our properties. Responsive, professional, and they know the units by now.
★★★★★
Had HVAC Repair CO install a new Carrier two-stage system last fall. The installer ran a Manual J calculation and told me my old unit had actually been oversized — which explained the short-cycling I'd dealt with for years. The new system is properly sized, humidity control is noticeably better, and my electricity bill dropped about 18% compared to the same months last year.
★★★★★
Commercial refrigeration failing on a Saturday with a full weekend of bookings ahead — HVAC Repair CO sent someone with actual commercial experience. He diagnosed a TXV failure and refrigerant undercharge, corrected both, and we never had to close. Will absolutely keep them on call.
★★★★★
Switched to HVAC Repair CO for our building maintenance after going through three other contractors who kept missing things on inspection. The difference is that their techs actually document what they find and follow up on it. We finally have a maintenance partner, not just a service vendor.
One call handles everything — diagnosis, repair, or installation. HVAC Repair CO dispatches across Corunna and surrounding areas, 24 hours a day.
Call +1-844-611-2875 — Available 24/7Common Questions
Where We Work
HVAC Repair CO serves Corunna and the broader Corunna, IN service area with the same technician pool and dispatch operation. Wherever you are in our coverage zone, you reach the same live dispatcher and get the same flat-rate, licensed service.
We cover residential and commercial properties across Corunna — from single-family repairs to multi-tenant commercial maintenance contracts. Same phone number, same dispatch team, same quality standard.
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