Is your HVAC system losing the battle against the 105-degree "Heat Dome"? Does your outdoor unit look buried in red clay dust while your OG&E bills skyrocket? Don't let a July breakdown turn your home into an oven.
Since 1999, Smith Brothers Heat and Air has been the OKC HVAC company that local families depend on for survival. Led by Duane Smith — an HVAC specialist with over 25 years of local experience — we provide the best HVAC services in OKC when the weather turns brutal.
Oklahoma weather is relentless. If you're seeing any of these warning signs, call Duane Smith immediately at 405-524-1366.
Likely a refrigerant leak, failed capacitor, or AC problem. Oklahoma's red dust clogs coils — this gets worse fast in 100° heat.
Grinding, clanging, or squealing indicates mechanical failure. A loud "boom" on startup means delayed ignition — a serious safety concern.
Your unit is likely "laboring" and needs an efficiency tune-up. A dirty system can waste 30–50% more energy before it finally fails.
Turn it OFF immediately. You likely have a restricted airflow issue — a clogged filter or failing TXV valve. Common in dusty OKC homes.
When your system fails during an Oklahoma heatwave or ice storm, you need the best emergency HVAC repair in OKC. We service all major brands — Trane, Lennox, Carrier, Rheem — with precision diagnostics to get your home comfortable again fast.
Duane Smith ensures every service truck is equipped to handle everything from electrical shorts to complex compressor rebuilds. We use:
If your unit is over 10–12 years old, it's likely costing you a fortune in wasted energy. Duane Smith is the heating & cooling contractor Oklahoma City trusts to engineer the perfect system.
We help OKC families find the perfect balance between upfront cost and long-term energy savings.
Oklahoma businesses can't afford downtime. We provide high-capacity commercial HVAC that keeps employees productive and customers comfortable.
As a provider of top-rated duct cleaning and HVAC service in OKC, we ensure your air is as clean as it is cool. Our preventative maintenance keeps your system running through the harshest "Cedar Fever" seasons and dusty Oklahoma windstorms.
Our #1 recommendation for the 405 area code. This system "zaps" viruses and causes Oklahoma red dust particles to clump together for easy filtration — installed directly into your existing HVAC system.
Explore IAQ Services →We perform a comprehensive 21-point check, including a chemical coil wash to remove Oklahoma's notorious "Red Dirt" buildup that suffocates your equipment and drives up your OG&E bill every month.
Book $89 Tune-Up →Among the many HVAC service contractors in OKC, we pride ourselves on providing the most accountable, transparent service in the metro.
Duane Smith has diagnosed and fixed every HVAC system mistake in the book — in Oklahoma's unique and extreme climate.
A fully credentialed Oklahoma Mechanical Contractor. Why hire a pro instead of risking a DIY mistake?
Technicians hold the highest industry certifications for technical skill and safe refrigerant handling — every job, every time.
Our office at 1724 Linwood Blvd means we are part of this community, maintaining a top reputation with the BBB.
Don't just take our word for it. Here's what your OKC neighbors are saying about our service.
"We've had them out several times over the years, from repairs to routine maintenance to replacing both AC and heating units. This time one of our units went out and they came out and troubleshot it. The job wasn't hard but required the additional help of a licensed electrician, and when they left they volunteered to speak with the electrician if he had any questions. That was just exceptional service that you don't see anymore. These guys are highly recommended."
"My original heat & air system finally died. So, who am I gonna call? Smith Brothers, that's who! The six-man crew arrived at 9am sharp and left at precisely 4:30pm — complete old unit removal and new equipment install in 7.5 hours flat. These fellas worked like clockwork. I'm not exaggerating when I say that not only were they an amazing ultra-professional HVAC team, but they also provided my wife and me with a 'life changing' experience. Go with Smith Brothers. You'll be glad you did!"
"Easy and straightforward to work with. Had a replacement HVAC system installed. Professional and honest, with no surprises, no delays. The process was smooth from beginning to end."
"My heater decided to act up right before the freeze. Smith Brothers was able to send someone out same day. They replaced my old thermostat and checked and changed my filters as well. Really fast and friendly service. Talked me through everything and explained the issues and cost."
Find answers to common questions about emergency HVAC repair, AC service, maintenance, installation, system sizing, commercial HVAC, and local service areas in Oklahoma City.
Smith Brothers provides 24/7 emergency HVAC service, 365 days a year including weekends and holidays. We typically dispatch within minutes and arrive in 1–2 hours across the OKC metro from our Linwood Blvd base. A real team member answers every call — no answering machines.
There is a slightly higher after-hours service call fee. However, parts pricing and labor rates remain the same. Duane Smith insists on transparent, upfront pricing — you approve all costs before any work begins. No hidden emergency surcharges.
For AC failure: close blinds, turn on fans, stay hydrated. For heating failure: close off unused rooms and use extra blankets. If you smell gas or your CO detector fires: evacuate immediately, call your gas company, then call us at 405-524-1366.
Very common during Oklahoma heatwaves. It usually means your system is "undersized" for 100°+ days, your coils are clogged with red dirt and can't exchange heat properly, or you have a slow refrigerant leak. Schedule a diagnostic — our $89 service call fee is waived if you move forward with the repair.
Our "Summer-Ready" 21-point tune-up is $89. This includes a chemical coil wash, capacitor health check, refrigerant pressure test, condensate drain flush, and a complete written report. It's the single best investment you can make before Oklahoma's summer heat arrives.
Duane Smith recommends a full AC tune-up every spring before the heat season begins. Because Oklahoma's Red Dirt buildup and Cedar Fever pollen are so aggressive, annual maintenance is essential to prevent premature equipment failure and high utility bills.
A residential central AC replacement typically starts at $6,800. High-efficiency variable-speed systems start at $9,500. Heat pumps and ductless mini-splits vary by zone count. Final pricing depends on your home's Manual J load calculation — we provide free on-site estimates. Call 405-524-1366.
If your system is under 10 years old and the repair cost is under 50% of replacement cost, repair is usually the smarter financial decision. Over 12 years old with rising energy bills and repeated breakdowns? Replacement typically pays for itself in energy savings within 5–7 years. Duane Smith will always give you an honest recommendation — see our Repair vs Replace Guide.
Never let a contractor "guess" your system size. Smith Brothers performs a full Manual J Load Calculation — measuring your windows, insulation R-value, ceiling heights, and square footage to engineer the exact system your OKC home needs. Oversized or undersized systems are the #1 cause of comfort problems and early equipment failure.
Yes. Smith Brothers serves both residential homeowners and commercial businesses across the OKC metro. Our commercial services include rooftop unit (RTU) installation, multi-zone commercial systems, property management partnerships, and 24/7 commercial emergency repair. See our Commercial HVAC page.
We serve all of Oklahoma City and surrounding communities including Edmond, Moore, Yukon, Norman, Midwest City, Mustang, Nichols Hills, Del City, The Village, and Bethany. If you're in the OKC metro area, we can help — call 405-524-1366 to confirm your location.
Yes. We install and service all major brands including Trane, Lennox, Carrier, Rheem, American Standard, and Goodman. Our service trucks carry factory-authorized OEM parts for most brands, enabling same-day repairs on the first visit in most cases.
Duane Smith and the team at Smith Brothers Heat and Air are ready to provide the expert HVAC service you deserve — 24 hours a day, 7 days a week.
