Repair Services
HVAC repair that gets you comfortable again.
From single-family homes to local businesses, our NATE-certified technicians diagnose and fix heating and cooling systems fast — including furnaces, air conditioners, heat pumps, and rooftop units.
Since 1952
Years in business
24 / 7
Emergency service
Flandreau & Brookings
SD locations
NATE-certified
Technicians
Residential HVAC Repair
Your home's comfort is our priority. We repair all makes and models of furnaces, air conditioners, and heat pumps — and we don't leave until the job is done right.
- Furnace repair & ignition troubleshooting
- Air conditioner & heat pump repair
- Thermostat replacement & wiring
- Ductwork inspection, sealing & balancing
- Refrigerant leak detection & recharge
- Same-day and 24/7 emergency service
Commercial HVAC Repair
We keep businesses, offices, retail spaces, and multi-unit properties running. Our team handles larger systems with the efficiency and expertise your operation demands.
- Rooftop unit (RTU) repair & service
- Packaged system & split-system repair
- Commercial refrigeration & controls
- Ventilation & make-up air troubleshooting
- Zoning, dampers, and building automation
- Emergency repair & priority service agreements
How it works
Repair done right, step by step
Diagnose
We arrive with the right tools, run a full diagnostic, and explain what's wrong before any work starts.
Quote
You'll get an upfront, written estimate with parts and labor clearly itemized — no hidden fees.
Repair
Our NATE-certified technician completes the repair using quality parts, then tests the system thoroughly.
Follow-up
We make sure you're satisfied, answer your questions, and leave the workspace cleaner than we found it.
Troubleshooting
Common HVAC problems we fix
No heat
Furnace won't start, short cycles, or blows cold air.
No cool
AC runs but won't cool, or the outdoor unit won't come on.
Strange noises
Banging, squealing, rattling, or grinding from the system.
Uneven temperatures
Some rooms too hot or too cold throughout the building.
Brands we service
Experienced with the brands you trust
Why Ekern
The difference a local team makes
Licensed & insured
Master plumbers and NATE-trained HVAC technicians. Permits pulled, code-compliant, warranty-backed.
Upfront pricing
You approve the price before we start. No surprise add-ons, no after-hours scare tactics.
24/7 emergency service
Burst pipes and dead furnaces don't keep business hours. Neither do we.
Service area
Eastern South Dakota, served locally.
With offices in Flandreau and Brookings, our technicians live and work in the communities they serve. Most calls arrive within 15 miles of a crew member.
- Flandreau, SD
- Brookings, SD
- Moody & Brookings counties
- Surrounding eastern SD communities
Reviews
What customers say about our repair work
"Furnace quit at 11pm in February with a newborn in the house. Ekern had a tech at our door before 7am and a new high-efficiency unit running by noon. Calm, professional, fair price."
Sarah M. — Brookings, SD
"Used them for a water heater last year and a full AC replacement this spring. They show up when they say, leave the place cleaner than they found it, and stand behind the work."
Dave K. — Flandreau, SD
"Got three quotes for a new furnace and AC. Ekern wasn't the cheapest, but their walkthrough was the most thorough and the install was flawless. Worth every dollar."
Janelle T. — Brookings, SD
FAQ
Questions about HVAC repair
How fast can you get here for an HVAC emergency?+
We offer 24/7 emergency repair. For Flandreau, Brookings, and nearby communities, we usually have a technician on the way within the hour during business hours and prompt dispatch after hours.
Do you repair all brands of HVAC equipment?+
Yes. Our technicians are trained to diagnose and repair all major residential and commercial brands, including Lennox, Carrier, Trane, Goodman, Mitsubishi, Rheem, and many more.
Should I repair or replace my furnace or AC?+
It depends on age, repair frequency, and efficiency. If your system is over 12-15 years old and needs a major repair, replacement often saves money long term. We'll give you an honest recommendation.
Do you service commercial rooftop units?+
Yes. We repair and service RTUs, packaged systems, split systems, controls, zoning, and ventilation for offices, retail, multi-unit, and light industrial properties.
Are your technicians certified?+
Yes. Our HVAC technicians are NATE-certified and experienced with both residential and commercial systems. We also carry full licensing and insurance.
Ready when you are
HVAC problem right now?
Call for 24/7 emergency repair, or request service online and we'll get back fast.