CGS HVAC
hvac
Serving Germantown, WI
From Google Business Profile
3.6
16 Google reviews
Hours
| Monday | 8:30 AM–5 PM |
| Tuesday | 8:30 AM–5 PM |
| Wednesday | 9 AM–5 PM |
| Thursday | 12:30 AM–5 PM |
| Friday | 8:30 AM–5 PM |
| Saturday | Closed |
| Sunday | 8:30 AM–5 PM |
Google categories: Heating contractor
View on Google Maps →Last checked October 25, 2026.
More from Google Business Profile
Listed features
- Accessibility
- Wheelchair accessible parking lot
Photos on Google: 2
Recent Google reviews (excerpts)
Written by Google users, not by EdgeLocal. EdgeLocal has not verified them and does not show reviewer names.
5 out of 5 stars · Feb 2026 · Owner replied
Three weeks ago, my wife and returned from a getaway only to find out that we were without heat. I called Clark, my HVAC expert for the last 25-30 years, and he promptly came over, assessed the problem and came up with a temporary fix to…
5 out of 5 stars · Feb 2025 · Owner replied
Lost power to the furnace and had no heat. Called CGS as they originally installed it back in 1992, as i found out. 30+ year old furnace final winter. He recommended replacement and was able to install the following day. Clark provided us…
5 out of 5 stars · Sep 2023 · Owner replied
CGS has been working on our hvac home matters for many years. Very affordable. Always on time. Excellent workmanship. Gives options for repair, replacement or service. Professional, ethical and sensitive. Community oriented. Wouldn't think…
The owner replied to 3 of the 5 most recent reviews Google showed.
From Google Business Profile, last checked October 25, 2026.
About hvac contractors in Germantown
HVAC contractors install, service and repair furnaces, air conditioners, heat pumps and ductwork. HVAC contractors replace furnaces and central air conditioners, install heat pumps and ductless mini-splits, perform seasonal tune-ups, seal and balance ductwork, add humidifiers and air filtration, and respond to no-heat emergencies.
Typical cost: $5,500–$14,000 for a furnace or central AC replacement. See the full cost guide
Typical U.S. ranges from industry sources (2024–25); not EdgeLocal data. Your quote will vary with scope, materials and location.
Questions to ask this contractor
- Ask for a load calculation: A Manual J calculation sizes equipment for your actual home.
- Compare equipment line by line: Match model numbers, efficiency ratings and warranty terms across quotes.
- Verify mechanical licensing: Iowa and several neighboring states license HVAC/mechanical work.