Oasis Heating & Cooling

★★★★★ 4.7 / 5 (373)
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: 5736 N Western Ave, Chicago, IL 60659
: (773) 320-5395
: http://www.oasisheating.com/

Company Overview

Since 1997, Oasis Plumbing, Heating & Cooling, Inc. has been delivering exceptional HVAC services and expert installations to the residents of Chicago. We are excited to announce that we now provide plumbing services as well!

Before founding Oasis, Mike Causevic gained experience as an HVAC specialist at the Museum of Science and Industry and multiple independent contractor locations. Oasis was created by Mike to deliver high-quality repair and installation services alongside a friendly and honest approach. With the help of his fantastic office team and expert technicians, Mike's company has flourished since 1997. Oasis consistently provides top-tier services and excellent customer relations, as shown by our many satisfied clients.

You can rest easy knowing that your home will be comfortable and secure, with Oasis just a call away for any emergency repairs. Our policy is to avoid overtime fees and charges for emergency calls outside regular hours, as we believe in mutual respect. Our skilled technicians focus on your comfort, treating you with respect and ensuring you are fully satisfied. Let us transform your home into the peaceful oasis it deserves to be!

Alongside our top-notch service, we also: Repair and install all brands. Provide complimentary estimates for installations. Offer reliable assessments and pricing. Present affordable rates. Hold an A+ rating on the Better Business Bureau website. Oasis is also recognized as an American Standard Customer Care dealer.

We have significant experience managing large-scale projects, such as 50, 60, or even 100-unit apartment buildings. Choosing us means you can rely on our experience with big jobs to get it right, and our commitment to communication ensures you are always in the know. Our extensive experience allows us to complete buildings like this one quicker and more effectively than others.

Mike Causevic has led Oasis Plumbing, Heating & Cooling since its founding in 1994. Before starting Oasis, he worked as an HVAC specialist at the Museum of Science and Industry and for several independent HVAC contractors.

Dissatisfied with the level of customer service he encountered, Mike established Oasis to provide exceptional service at more affordable rates than his competitors. Since then, Oasis has flourished, with a legacy of hundreds of happy clients, a growing fleet of vehicles, an expanding team of skilled HVAC professionals, and a new office in north Chicago.

Business Services

  • Bathtub installation
  • Bathtub repair
  • Drain installation
  • Drain repair
  • Faucet installation
  • Faucet repair
  • Garbage disposal installation
  • Garbage disposal repair
  • Gas line installation
  • Gas line repair
  • Hot water recirculation pump installation
  • Hot water recirculation pump repair
  • HVAC installation or replacement
  • HVAC system repair
  • HVAC system maintenance
  • Plumbing inspection
  • Plumbing installation or replacement
  • Plumbing repair
  • Sewer installation
  • Sewer repair
  • Shower installation
  • Shower repair
  • Sink installation
  • Sink repair
  • Sump pump installation
  • Sump pump repair
  • Toilet installation
  • Toilet repair
  • Water heater installation
  • Water heater repair
  • Water pipe installation
  • Water pipe repair

Business Location & Hours



Mon:Open 24 hours
Tue:Open 24 hours
Wed:Open 24 hours
Thu:Open 24 hours
Fri:Open 24 hours
Sat:Open 24 hours
Sun:Open 24 hours

Recommended Customer Reviews

David F.
★★★★★

We've been using Oasis for all of our heating and cooling needs for several years now. They are incredible. This week I needed an old leaky toilet fixed and discovered Oasis also offers plumbing. Chris came here and explained the costs and risks of repairing the old toilet versus getting a new one. Most impressively, he correctly predicted that there might be problems when we removed the old toilet, based on how it was glued to the floor and the age of our home (100+ years). This ultimately turned into a bigger job than anyone anticipated, but Chris came out again (even though he had been sick and I could tell it was a slog just to be here). Despite spending nearly two full days in our house, Chris delivered the project exactly as he had predicted at a very reasonable cost. He's also an exceedingly nice and trustworthy person, as is everyone I have ever interacted with at the company.

Paul M.
★★★★★

I hired this company to do a full furnace/AC replacement. In the quoting process, three things stood out to me: the friendliness of the employees, the competitiveness of the pricing, and the fact that they were the only company that properly sized the replacement unit (we were moving from an ancient unit to a high-efficiency unit, and other companies quoted me for a new furnace with equivalent BTUs, and none of them did manual J calcs to back that up). That final point was most important to me - even if Oasis had worse pricing, I wanted the job done right.

The installation had a couple minor errors, but they did not drag their feet about coming back to make everything right. To me, that displayed a high degree of professionalism and commitment to customer service. The installation seemed to go smoothly, and everyone was friendly throughout. They will be my choice for all future HVAC maintenance/needs.

Judson G.
★★★★★

We have had to rely on Oasis for a number of projects (heater/AC leak, hot water heater malfunction, external hose spigot gone rogue). Oasis has been unbelievable. Every. Single. Time. Hani, the AC/Heating dude is a delightful guy to work with. His knowledge, professionalism, and honesty all were so appreciated. The plumbing expert, Chris, also was a treat to work with. Same goes for the owner, who has always treated us fairly and who, in numerous visits, has yet to ask to exceed a quote, despite some projects proving more of a challenge than anticipated. Top-to-bottom, this is a ""go-to"" business.

Erik S.
★★★★★

We have hired Oasis a number of times for our buildings:

- install new boiler for radiator system
- install new furnace
- routine maintenance and smaller repairs on heating systems

Everyone we have dealt with was friendly and professional, and they have always delivered great results at reasonable prices.

Mitesh P.
★★★★★

Give this place a call first--they offer excellent phone consultations and are willing to use FaceTime to assess and potentially resolve the issue before coming on-site. I managed to fix my heating problem over FaceTime, saving me thousands of dollars.

Victoria N.
★★★★★

I have been using Oasis for years to service my furnace and AC and they replaced my unit several years ago. I am very pleased with the quality and service they provide. Mark serviced my furnace today. He was on time, professional, and knowledgeable. I highly recommend Mark and Oasis.

Louis S.
★★★★★

We consulted with Mike after having a not so great experience with other HVAC companies in the area and we couldn't be happier with the level of service Oasis has provided to us. Mike and his team really do go that extra mile to guide homeowners through the process and installation. Highly recommend Oasis for any all HVAC needs

Colin K.
★★★★★

Had boiler serviced, a gas valve replaced and jets cleaned - also had them replace a steam radiator valve. All repairs went off without a hitch, the team was professional, clean, and courteous, and the price was reasonable

Carl F.
★★★★★

Excellent Company, Great Service. I had a central AC unit crap out the night before a heat wave. I called at 10:30 at night - they answer the phone 24 hours - and chose not to have emergency service but Mike called me at 7:04 in the morning to schedule a time THAT SAME DAY to repair my unit. He came out at 9:30 am, diagnosed it right away, and brought the right part with him ""because it's usually this part"" to make a fast repair. Fast, simple, done. Plus Mike is about the nicest guy you can meet when you are stressed out about the potential of an unforeseen major repair.

Ayesha H.
★★★★★

Just prior to the heat dome starting, my air conditioner gave out. Oasis was able to send someone out the day after I called them. I could tell they were really busy. They called me the morning of to let me know they had a lot of appointments that day and they would be arriving a few hours late. They texted me when they were on the way and fixed the problem within 20 minutes. The guys they sent were polite, professional, and even found an issue with the other air conditioner that would have caused flooding if left uncorrected. I was nervous because I've been told so many things about my air conditioner needs to be replaced and it would cost thousands of dollars but Oasis said that that was unnecessary and that just the capacitor needed to be fixed. I appreciated the honesty and professionalism.

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