HVAC Service Fast
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Water Treatment in Missouri

23 local Water Treatment pros serving 12 cities across Missouri. Looking for water treatment in Missouri? HVAC Service Fast lists 23 local Water Treatment companies serving 12 cities — from Affton and Kansas City to St. Louis. Compare Google ratings, check license details and contact companies directly — no middleman, no fees. Missouri sees both hot summers (~80°F) and cold winters (~30°F), so equipment works year-round with little downtime. Typical jobs… Read more

Compare Water Treatment Companies in Missouri

Local contractors · pick a city to narrow down

Trionics Superior Water logo

Trionics Superior Water

4025 Old Hwy 94 S suite q, St Charles, MO 63304, USA

Water Treatment
5.0 (114) · via Google

Website

Hoffmann Brothers - Clayton, MO logo

Hoffmann Brothers - Clayton, MO

1025 Hanley Industrial Ct, Brentwood, MO 63144, USA

Heating Services Commercial HVAC Ductwork Services
4.9 (11,856) · via Google

Website

Plumbing Masters - St. Louis, MO logo

Plumbing Masters - St. Louis, MO

11012 Lin Valle Dr Ste K, St. Louis, MO 63123, USA

Heating Services Plumbing Services Water Heaters
4.9 (778) · via Google

Website

The Water Guys, LLC logo

The Water Guys, LLC

554 State Hwy 76, Exeter, MO 65647, USA

Water Treatment
4.9 (72) · via Google

Website

All Pro Water, LLC logo

All Pro Water, LLC

10 Strecker Rd Unit 4000, Ellisville, MO 63011, USA

Water Treatment
4.9 (71) · via Google

Website

About Water Treatment in Missouri

Looking for water treatment in Missouri? HVAC Service Fast lists 23 local Water Treatment companies serving 12 cities — from Affton and Kansas City to St. Louis. Compare Google ratings, check license details and contact companies directly — no middleman, no fees.

Missouri sees both hot summers (~80°F) and cold winters (~30°F), so equipment works year-round with little downtime. Typical jobs include water treatment, water softener installation, whole-house water filtration and seasonal maintenance.

Missouri has no statewide HVAC contractor license — licensing is handled at the city or county level. When comparing local pros, ask which municipal license they hold and whether the work needs a permit.

Water Treatment in Missouri — FAQ

How many Water Treatment companies are listed in Missouri?
HVAC Service Fast currently lists 23 Water Treatment companies across 12 cities in Missouri. Every profile shows the data we have on file — ratings from public sources, phone, address and, where available, license numbers.
How do I verify a Water Treatment contractor's license in Missouri?
Missouri does not issue a statewide HVAC license; cities and counties handle licensing locally. Ask the contractor which local license they hold and confirm it with your municipality.
How much does Water Treatment cost in Missouri?
Prices vary with job scope, equipment and local labor rates, so treat any flat number online with caution. Our free HVAC cost guide explains typical price factors, and requesting two or three quotes from the companies listed here is the fastest way to see real local pricing.
Which Missouri cities have the most Water Treatment pros?
The largest concentrations are in Affton, Kansas City, St. Louis, Gladstone, Kansas City. Use the city filter to narrow this page, or open a city page for the full local list.

Water Treatment by City in Missouri

Open a city page for the full local list of Water Treatment pros.