This business is Trusted — customers consistently rate it 4.9★ across 1,412 reviews, indicating reliable, quality service.
Strong long-term review history with 1,412 reviews and a 4.9★ average signals reliable, consistent service.
Monday: Open 24 hours
Tuesday: Open 24 hours
Wednesday: Open 24 hours
Thursday: Open 24 hours
Friday: Open 24 hours
Saturday: Open 24 hours
Sunday: Open 24 hours
Customers frequently praise quality installations, energy-efficient recommendations, and responsive follow-up.
Scheduling during peak season (summer/winter) can take time — book ahead.
Homeowners looking for a trusted HVAC provider for installs or repairs.
Review Rank Score (0–100) blends a Bayesian-adjusted rating, review volume, recent sentiment, and rating consistency. It's a predictive reputation estimate — not a replica of Google or Yelp's ranking.
I've used Oasis multiple times and each time their service has been excellent. I've used them to replace an A/C and electric furnace in my condo, replacing the gas furnace in my house, and most recently replacing the A/C in my house. I've also used them for regular system checks and diagnostics. What really sets Oasis apart is the personal accountability from the top down. The owner, Mike, has personally stopped by to make sure everything was handled right, and he genuinely goes above and beyond to meet your needs. The best example was when my A/C went out right at the start of a Chicago heat wave. Instead of putting me on a long waiting list like other companies would, Mike helped expedite a fast replacement to get the house cool again right away. Between handling the condo, the house, and dealing with unexpected breakdowns, they have never let me down. They even seamlessly followed all the strict rules and scheduling requirements set by my condo association. Their prices are very reasonable, they are always punctual, they don’t try to upsell you on things you don't need, and they leave the place clean. Finding an HVAC contractor in the city you can actually trust is tough, but Oasis has absolutely earned my repeat business.
Oasis was really professional and friendly. They came by for maintenance on our AC units and immediately realized we were low on coolant. They topped us up and didn’t charge for the full amount they used. And their member program is a great deal. You get a discount on maintenance by signing up for reminders, no annual or monthly fee. You get a benefit for something you should probably have anyway, reminders for annual servicing. Will definitely use again!
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The Oasis team is impressive! Online scheduling was a breeze and we had an appointment all squared away first thing the next morning. The AC tech was very knowledgeable and courteous and was able to come up with a solution and a quote very quickly. We’ve also had a great experience when dealing with a faulty tankless water heater. Would recommend without reservation!
Really happy with my experience with Oasis. Great communication and response with scheduling. I had a full hvac replacement and my specific install team of Fernando, Amir, and Joel were great. They arrived on time, professional, respectful, and took the time to answer all of my questions. They explained everything clearly, which made me feel confident throughout the installation. They also set up my new Nest thermostat wiring and walked me through the complete set up & capabilities. They made sure everything was working properly before they left.
Oasis installed a new furnace and AC for us, and were great throughout the process. Mike came out same-day to do an inspection and give us an estimate, and Fernando and Nayim came out the next day and did the install in a very efficient manner, talking us through the process as they went. We are very satisfied with the level of service they provided.