O & W Heating and Cooling and Furnace, boiler, water heater install & repair
Milwaukee, WI Mini-Split Installation
Overview
O & W states same-day emergency response for heating and cooling calls. The website notes a six-year labor warranty. O & W lists Milwaukee and nearby suburbs among its service area. The site emphasizes water heater, furnace, boiler, and AC repair services.
Residential heating and cooling repairs in Milwaukee, with emphasis on water heaters and furnaces. Labor warranty of 6 years is noted in their content. Emergency response same-day is stated on the homepage. Value propositions list 24/7 emergency service (advertised).
Score breakdown
Composite of public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment of provider profile. See full methodology →
Pros
- High Google rating (4.9★ across 225+ reviews)
Service area
Guarantees & credentials
- 6 year warranty
- Satisfaction Guaranteed
Sourced from the provider's own website. We surface these as published; we do not independently verify each license or warranty.
Contact & hours
Frequently asked questions
What are the pros of O & W Heating and Cooling and Furnace, boiler, water heater install & repair?
What is the Vouched Score for O & W Heating and Cooling and Furnace, boiler, water heater install & repair?
How can I contact O & W Heating and Cooling and Furnace, boiler, water heater install & repair?
What does mini split installation service typically cost when working with a Milwaukee, WI provider like O & W Heating and Cooling and Furnace, boiler, water heater install & repair?
Compare with nearby providers
| Provider | Vouched | Years | |
|---|---|---|---|
O & W Heating and Cooling and Furnace, boiler, water heater install & repair (this company) |
77/100 | 4.9★ (225+) | — |
Nimmer Heating & Air Conditioning, Inc. ⭐ Best for Whole-Home Mini-Split Installation · ⭐ Best Manufacturer-Authorized Installer · ⭐ Best for Commercial / VRF |
72/100 | 4.9★ (1,000+) | 40+ |
| 70/100 | 4.5★ (255+) | 54+ |
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Profile last updated July 26, 2026.