90
ExceptionalOFallon, Missouri
HVAC & Plumbing Pros in OFallon, MO
9 businesses serve OFallon. Compare them by Registry Score — reputation, digital presence and reach — with owner-confirmed records listed first.
- Pros
- 9
- Avg. score
- 63.9
- Featured
- 3
Featured · 2026
Featured in OFallon
74
Strong52
EstablishedShowing 1–9 of 9
90
ExceptionalOFallon, MO 63366 4.9(919 reviews)
HVACHeatingA/C
80
Strong77
Strong74
StrongOFallon, MO 63366 4.4(128 reviews)
HVACHeatingA/C
57
EstablishedOFallon, MO 63366 4.3(4 reviews)
HVACHeatingA/C
52
Established50
Established49
Developing46
DevelopingOFallon at a glance
- How many HVAC and plumbing companies are in OFallon, MO?
- The ProComfort Registry lists 9 heating, cooling and plumbing businesses serving OFallon: 9 offering HVAC and 0 offering plumbing (some do both).
- What is the average Registry Score in OFallon?
- Rated companies in OFallon average 63.9 out of 100. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.
- Which companies are featured in OFallon for 2026?
- ProComfort Registry features Swiss Air Heating & Cooling LLC, Reliable Heating & Cooling Inc., Air Rescue in OFallon. Featured companies are selected editorially from public reviews and track record; listings and rankings are never sold.
- How are OFallon companies ranked?
- By Registry Score, with records confirmed by their owners listed first. See https://procomfortregistry.online/methodology for how the score is calculated.