HVAC Repair in St. Louis, MO
Honest Same-Day HVAC Repair, No Sales Pitch Attached
At Martin-Jetco Heating and Air Conditioning, we pair prompt repairs with straightforward recommendations and no unnecessary sales pitch. Our family-owned company has served St. Louis homes and businesses since 1964, and we offer same-day service when heating or cooling equipment stops working.
Every technician is licensed and NATE-certified, meaning their heating and cooling knowledge has been verified by an independent industry program. We diagnose the problem, explain the options, and recommend only what the system actually needs. We’ve been named York Dealer of the Year multiple times, hold an A+ rating with the Better Business Bureau, and have earned more than 1,000 five-star Google reviews.
Call (636) 205-1631 or message us online now to request HVAC repair or emergency service in St. Louis.
Licensed & NATE-Certified St. Louis HVAC Technicians
We Have an A+ Rating From the Better Business Bureau
Repair Recommendations Based on Your System, Not a Sales Script
A repair visit shouldn’t become a sales presentation. Our technicians provide a diagnosis and repair quote during the same visit, giving you clear information before any work begins. Most repairs are resolved within 24 to 48 hours of the first call. Because we work with York, Goodman, Daikin, Carrier, and Trane, our recommendations aren’t tied to a single product line.
Our service model is built around efficient diagnosis and practical options:
- Equipped Service Trucks: Our technicians arrive with the tools and parts needed to complete most repairs in one trip.
- Multiple Equipment Brands: We service heating and cooling equipment across manufacturers without steering you toward one brand.
- Emergency Availability: We dispatch technicians for urgent calls during evenings, weekends, and holidays.
Signs Your Heating or Cooling System Needs Repair
Changes in sound, smell, runtime, or room temperature can all point to a developing mechanical or electrical problem. If you notice a persistent burning odor, shut the system down and call for professional service.
Common warning signs include:
- Banging, Clanking, or Screeching: These noises often indicate a loose component, worn blower bearing, or damaged fan belt that needs attention.
- Burning, Musty, or Chemical Odors: A burning smell can accompany an overheating motor or electrical issue. Musty odors may come from moisture or microbial growth around the evaporator coil or in ductwork, while a chemical smell can point to a refrigerant leak.
- Short Cycling: When the system starts and stops more frequently than normal, possible causes include a clogged filter, thermostat malfunction, or refrigerant issue, each of which puts extra strain on the compressor.
- Uneven Room Temperatures: Hot and cold spots are often associated with restricted ductwork airflow, low refrigerant, or an aging or improperly sized system.
- Higher Energy Bills: An unexplained increase without a change in usage habits can signal that the equipment is losing efficiency due to a developing problem.
What Happens When You Call for HVAC Repair
We start by listening to what you’ve noticed and discussing your options. A NATE-certified technician can then be dispatched to your property, often the same day, for residential or commercial service throughout St. Louis and St. Louis County.
A typical repair call includes:
- Initial Conversation: We gather details about the equipment, symptoms, and timing before dispatch so the technician arrives prepared.
- On-Site Diagnosis: Our technician inspects the system to identify the source of the problem, whether that’s a thermostat malfunction, refrigerant leak, electrical fault, compressor failure, or furnace heat exchanger concern.
- Repair Quote: We explain the findings and provide a quote before any work begins.
- Equipped Repair Visit: Our stocked service trucks let us resolve most issues in a single trip.
Restore Comfort With Same-Day Service
You’ll receive an honest repair-or-replace recommendation without pressure to purchase equipment or services you don’t need. Same-day appointments are available for many calls, and emergency service is available during evenings, weekends, and holidays.
Call (636) 205-1631 or message us online to schedule HVAC repair service in St. Louis, MO.
Why We're The Right Choice?
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Professional & Well Trained CrewOur team is licensed and well trained. You can rest assure that anyone working on your HVAC system is qualified and will work efficiently. That is a guarantee!
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Locally Owned & OperatedOur family has been serving the area since 1964. We care about the community and the people in it! We're proud of the reliable & honest relationship we've built for generations.
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Satisfaction GuaranteedWe're not happy unless you're happy! We stand behind our work and will never leave our customers in the dark. Providing peace of mind.
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Fully Stocked TrucksWe come prepared with all the tools and equipment needed in our fully stocked trucks to handle the job in one trip.
Our Client Reviews
We Treat Our Customers Like Family and It Shows!
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“It is a picture perfect installation, and the system is functioning fantastically!”- Karla
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We love Martin-Jetco! We had an issue with needing a new heat pump and AC only a year and a half after buying our house. and they walked through all our options and had a new system ready to install in matter of days! (In the middle of summer last year!) Then whenever we have user issues (In our case forgetting to change our filter promptly, which had minor repercussions!) they are always willing and able to help as soon as possible! Thanks Martin-Jetco- Laura G.
for being honest and believing in the golden rule! -
“Anthony never pushed us but was very honest about the system... ac and furnace. We decided that it made sense for us to put in new system. We feel very good about this decision. He even waived the charges for the cleaning of the system which is much apprec”- Maria P.
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We just had Jerry out for maintenance and to look at a problem we were having. He was so knowledgeable and educational about our system! I feel he helped empower me with knowledge of my equipment in my home. So very happy to have these services. We plan on staying with this company for- Annette N.H.
maintenance and any potential service calls. Even our neighbor uses them! -
I'm very happy with Martin-Jetco. I have had a lot of disappointing experiences with other HVAC people and I'm so happy I finally found someone who will take the time to do it right. They really went above and beyond to fix everything even though it was more complicated than the initial bid.- Angi N.
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AC went out and it was a bit of a puzzle as to why. Shout out to tech John DeClue who came out at 4:00 on a Friday and figured it out. Was a bad wire causing a short. Looked like a maybe a bad compressor, but he worked the problem and found the solution that saved me a lot of money! Martin-Jetco is a great company.- Ken M.
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“I love my new system, I’ve experienced both seasons and have been both toasty warm and chilly cool.”- Steven
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“We are preparing for an addition to our home. Unfortunately the AC units outside would have been in the way. Martin-Jetco came out and moved the unit to the new location. The technician did a wonderful quality job. He also was done within a few hours.”- Anthony B.
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“It was extremely easy to make an appointment with Martin Jetco Heating & Cooling. Kyle came to our home today to do a yearly heating inspection. He was very personable, sweet, and knowledgeable.”- Chris J.