“AC was blowing warm air. Tech diagnosed a bad contactor plus a filthy condenser, fixed both in one visit, and never tried to sell me a whole new system. — Wallace”
Same day air conditioning repair in Wallace, furnace repair, heat pump service and 24/7 Emergency HVAC Services in Wallace. Licensed, insured technicians. Affordable heating repair. Upfront flat-rate pricing. No overtime fees, ever.

Citywide Express HVAC is the HVAC company Wallace homeowners call for emergency AC repair, furnace repair and heat pump service. From capacitors and contactors to compressors, coils and full system replacement, we cover every brand and every season for homes and small businesses throughout the Wallace area.
Serving Wallace and the surrounding South Dakota communities means knowing the local building stock: attic air handlers baking in summer heat, undersized returns in older homes, mini splits in new additions, and condensers packed with dust and debris. We diagnose for the conditions your system actually lives in.

Heat waves and cold snaps do not keep business hours. Our Wallace emergency line is staffed by a live dispatcher 24/7 for emergency AC repair, 24 hour heating repair and same day HVAC repair. Households with infants, seniors or medical needs are prioritized during extreme weather. Call (346) 756-8163 and we will tell you honestly whether you need a truck tonight or a morning appointment.

We handle residential HVAC repair for single-family homes, condos, townhomes, apartments, mobile homes and rentals in Wallace, plus light commercial rooftop units and split systems for offices, retail, restaurants and warehouses. Property managers and landlords can set up priority accounts with consolidated billing.
Besides Wallace, our technicians cover Tea, Trent, Union Center, Valley Springs, Vienna, Wall and surrounding neighborhoods across South Dakota.
Real feedback from homeowners and business owners we have kept comfortable.
“AC was blowing warm air. Tech diagnosed a bad contactor plus a filthy condenser, fixed both in one visit, and never tried to sell me a whole new system. — Wallace”
“We run a diner and a rooftop unit died mid-shift. They came out after hours and had us cooling before the dinner rush ended. Now on a maintenance contract. — Wallace”
“Smart thermostat install plus fixing wiring another company botched. They even programmed it around our utility's peak hours. — Wallace”
Talk to a live dispatcher now and get a licensed technician on the way — often the same day. Upfront flat-rate pricing before any work begins. No overtime charges nights, weekends or holidays.
☎ (346) 756-8163AC not cooling, blowing warm air, leaking water, tripping the breaker or making noise? We diagnose and repair every brand of central air, heat pump and mini split.
Repair bills stacking up? We size, quote and install high-efficiency systems with real load calculations and airflow testing — not guesswork.
No heat, cold air at the vents, a furnace that won't ignite, or a system that short cycles — we repair gas furnaces, electric heat, boilers, heat pumps and wall units.
Every gas and electric furnace brand serviced, with combustion and carbon monoxide safety testing included on every visit.
A properly installed furnace is quieter, safer and cheaper to run. We handle sizing, venting, ductwork, gas lines and permits.
Heat pumps run year-round, so they fail more often. We repair reversing valves, defrost boards, charge problems and auxiliary heat faults.
Heat waves and cold snaps don't keep business hours. Our dispatch line is staffed 24 hours a day, 7 days a week, holidays included.
Most emergency breakdowns we see were preventable. A 21-point seasonal tune-up keeps capacity high and utility bills low.
Ductless systems deliver room-by-room comfort with no duct losses — perfect for older homes, additions, garages and apartments.
A miswired thermostat can look exactly like a dead AC or furnace. We install, wire and program smart thermostats correctly the first time.
Leaky, dirty ducts waste up to 30% of the air you paid to heat and cool. Cleaning, sealing and filtration upgrades fix comfort problems fast.
Downtime costs money. We service rooftop package units, split systems and light commercial equipment on your schedule, including after hours.
If you searched any of these, you are in the right place — call (346) 756-8163.