❄️ Official Rankings
10 Best HVAC in Watertown, SD (October 2026)
We compared 10 hvac serving Watertown and Codington County, South Dakota, and ranked the top providers by verified reviews, ratings, and local reputation — 764 customer reviews in all.
The 10 listed below hold an average rating of 4.9 out of 5, led by Active Heating Inc. - Watertown. Updated for October 2026.
- HVAC ranked
- 10
- Average rating
- 4.9★
- Reviews analyzed
- 764
- Area code
- 605
⭐ 4.9 · 294 reviews
151 N Maple, Watertown, SD 57201
⭐ 4.9 · 264 reviews
110 8th Ave SE #3, Watertown, SD 57201
⭐ 5.0 · 58 reviews
1207 6th Ave NW #160, Watertown, SD 57201
⭐ 4.9 · 30 reviews
1121 19th St SE, Watertown, SD 57201
⭐ 4.8 · 47 reviews
1316 4th Ave SE, Watertown, SD 57201
⭐ 5.0 · 12 reviews
1120 5th St SE, Watertown, SD 57201
⭐ 4.6 · 16 reviews
607 4th St SW, Watertown, SD 57201
⭐ 5.0 · 3 reviews
206 9th Ave SE, Watertown, SD 57201
HVAC listed here serve Watertown, Codington County, and nearby ZIP codes including 57201.