96
ExceptionalSt. Louis, Missouri
HVAC & Plumbing Pros in St. Louis, MO
142 businesses serve St. Louis. Compare them by Registry Score — reputation, digital presence and reach — with owner-confirmed records listed first.
- Pros
- 142
- Avg. score
- 53.1
- Featured
- 6
Featured · 2026
Featured in St. Louis
88
Exceptional88
ExceptionalSt. Louis, MO 63132 4.8(502 reviews)
HVACHeatingA/C
82
Strong77
Strong77
StrongShowing 1–2 of 2
55
EstablishedSt. Louis, MO 63146 4.1(10 reviews)
HVACRefrigeration
41
DevelopingSt. Louis, MO 63144 4.0(9 reviews)
HVACRefrigeration
St. Louis at a glance
- How many HVAC and plumbing companies are in St. Louis, MO?
- The ProComfort Registry lists 142 heating, cooling and plumbing businesses serving St. Louis: 137 offering HVAC and 10 offering plumbing (some do both).
- What is the average Registry Score in St. Louis?
- Rated companies in St. Louis average 53.1 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 St. Louis for 2026?
- ProComfort Registry features SmartHouse Heating and Cooling, 1St Global Air Duct Cleaning, Averill Heating & Air Conditioning, Seliga Heating and Cooling, Swifty's Heating and Cooling, Welsch Heating & Cooling in St. Louis. Featured companies are selected editorially from public reviews and track record; listings and rankings are never sold.
- How are St. Louis companies ranked?
- By Registry Score, with records confirmed by their owners listed first. See https://procomfortregistry.online/methodology for how the score is calculated.