O'Connor Heating & Cooling
O'Connor Heating & Cooling is a HVAC provider serving Sioux City, IA. Rated 4.3★ with 60 Google reviews. See services, review signals, and request a quote.
HVACSioux City, IA
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Company overview
- TradeHVAC
- Service areaSioux City, IA
- Google rating4.3★ (60 reviews)
- Phone(712) 490-7827
- Address3812 Floyd Blvd, Sioux City, IA 51108, USA
Photos
Photos from O'Connor Heating & Cooling
What customers say
“I would like to give a very big shout out to O’Connor Heating & Cooling and their incredible team. Having worked in property management for several years, I’ve been fortunate to learn quite a bit abou…”
“O'Connor Is amazing! They've helped us twice with our AC and Furnace- once in the summer and once in the winter. Our unit is on the way out and we are just trying to keep it going as long as possible.…”
“These people have a complete disregard for life during the winter. Whoever was flying down 75 in their plow truck almost hit a car because they think they have to do 65mph in the snow. I would never h…”
“Had these guys come out to my parents house in leeds. Told my parents they needed a new unit , that theirs was really old and unfixable. . They were about to pull the trigger and buy a 5000$ unit fr…”
“We have used O'Connor for over 15 years. Every time I have called, they have been nice, professional, fast, and very good at diagnosing and fixing the problem. We have called over holiday weekends, du…”
Key highlights
Strengths
Things to ask
- Confirm availability for your area and timeline
- Ask about warranty terms on parts and labor
- Request a written estimate before work begins
- Ask about payment plans or financing
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Frequently Asked Questions
What services does O'Connor Heating & Cooling offer?
O'Connor Heating & Cooling provides: HVAC diagnosis, repairs, and full system installs. They serve residential and commercial customers in Sioux City, IA.
What is O'Connor Heating & Cooling's rating?
O'Connor Heating & Cooling has a 4.3 out of 5 star rating based on 60 Google reviews.
Is this company licensed in Iowa?
All listed providers have a verified Iowa contractor license at time of publication. You can verify on the Iowa Division of Labor — Plumbing and Mechanical Systems Board (statewide mechanical journeyman/contractor license for plumbing, hydronic, and HVAC-R work) lookup at https://plb.iowa.gov/license-search.
Does O'Connor Heating & Cooling offer emergency service?
Contact them directly to ask about emergency availability and after-hours service.
How do I request a quote?
Use the CTA below to submit your ZIP. You can message this company alongside two or three other local pros for easy comparison.
Licensing verified 2026-04-23. Reviews refreshed 2026-04-23.
Licensing data: Iowa Division of Labor — Plumbing and Mechanical Systems Board (statewide mechanical journeyman/contractor license for plumbing, hydronic, and HVAC-R work) · Company data: verified business records + Google Business profile
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