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Claim This BusinessOasis Plumbing, Heating & Cooling has maintained a presence in Chicago's mechanical systems industry for nearly three decades. Founded in the mid-1990s, this multi-trade contractor now holds a 4.9-star rating compiled from 1,091 verified customer reviews, a volume that places them among the most-reviewed HVAC operations serving the metropolitan area. Their technicians operate across three core disciplines: residential heating and cooling, indoor air quality solutions, and plumbing services ranging from leak detection to complete water heater installations. The company maintains 24-hour availability including weekends and holidays, with emergency response capability documented across multiple reviewer accounts. Service coverage extends to multiple collar communities including Skokie, Elmhurst, Lombard, Addison, Wilmette, and Villa Park, positioning the operation as a regional provider rather than a neighborhood-only contractor.
What distinguishes Oasis from competitors operating in the same service territory centers on their brand partnerships and financial incentive programs. As an American Standard dealer, the company installs equipment manufactured in the United States, a detail several reviewers explicitly reference when describing their installation experience. The company promotes a $500 manufacturer rebate on qualifying furnace or air conditioner replacements, coupled with access to federal tax credit programs for energy-efficient equipment upgrades. Their website references a 100% satisfaction guarantee on workmanship, a policy that addresses homeowner concerns about installation quality after contracts are signed. The maintenance program structure offers scheduled service agreements designed to extend equipment lifespan rather than relying solely on emergency repair calls, a contrast to contractors who primarily profit from reactive service calls.
Customer stories drawn from verified reviews reveal consistent patterns in technician conduct and service responsiveness. Multiple reviewers specifically name Naem, describing his arrival within two hours of calling on a frigid winter day, with diagnostic work completing in under thirty minutes. Another account credits Danny with overseeing a complex dual furnace and zoning system installation, with the team returning repeatedly until the homeowner achieved desired comfort levels. A father-and-son technician team identified as The Amirs receive recognition for precise installation timing and equipment sizing that matched the customer's specific needs. Reviewers who left five-star ratings frequently mention scheduling flexibility, 7:00 AM appointments that allowed working homeowners to avoid missing employment hours, same-day weekend service during heat wave conditions, and the owner Mike working directly with customers on pricing and project scope.
The overwhelming majority of 1,091 reviews carry five-star ratings, with named technicians appearing across multiple accounts: Naem referenced for same-day emergency response, Danny highlighted for complex installations, and The Amirs noted for punctual arrival and equipment sizing. A single one-star review cites incomplete repairs, while positive feedback consistently emphasizes diagnostic skill and pricing transparency.
| Sunday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| ThursdayToday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Diagnose and replace gas furnaces including variable-speed models, with same-day emergency service available.
AC repair, installation, and maintenance for residential systems, including rooftop units for commercial properties.
Installation and repair of residential and light commercial boiler equipment.
Mini-split and heat pump systems for zoned comfort without ductwork, including hybrid heating options.
Leak detection, drain cleaning, pipe repair, faucet fixtures, and sewer line services.
Electric, gas, and tankless water heater supply and installation including gas line connections.
Dehumidifiers, humidifiers, duct cleaning, and REME HALO air purification systems.
Scheduled seasonal service agreements designed to prevent emergency repairs and extend equipment lifespan.