On-time arrival
GoodIn top 20%
Proven in 270+ Chicago-Naperville reviews
Get expert plumbing & HVAC help fast from a trusted local team. We are Oasis Heating and Cooling, serving homes across Chicago-Naperville-Elgin. Family owned since 1997, we back our work with clear communication, fair options, and no hard upsells. We cover Chicago, Evanston, Skokie, Des Plaines & Oak Park with same-day service when available. Need a repair, tune-up, or replacement? We also offer financing and free second opinions on installs. Call or book online today for a free estimate.
Explore our professional services and get the help you need to keep your home comfortable, safe, and running smoothly.
Why choose us
Need HVAC repair too? The Satisfaction Guarantee covers every project, from HVAC maintenance to heating and water heater work.
In top 20%
Proven in 270+ Chicago-Naperville reviews
Grades compare Oasis Heating and Cooling with Chicago-Naperville home service pros, based on homeowner reviews and the jobs they mention. Good means the top 25% of Chicago-Naperville home service pros.
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Coupons & specials
HVAC Financing Available. 60 Month Financing with Approved Credit.
60 Month Financing with Approved Credit.
Oasis Executive Program - Only $20.00 per month/per system
Only $20.00 per month/per system
Sign up for one of our Energy Savings Programs Today
Up to a $298 savings!
Oasis Executive Program
Sign up for one of our Energy Savings Programs Today
Free annual refrigerant charge (up to 2lbs)
Free annual refrigerant charge (up to 2lbs)
Sign up for one of our Energy Savings Programs Today
20% savings on future repairs
20% savings on future repairs
Sign up for one of our Energy Savings Programs Today
Reviews
1,504 reviews
Customers mention
Based on all customer reviews.
Great job descaling my tankless water heater!
Quick and responsive service and very friendly! Highly recommend Hector!
Excellent Service Highly Recommend Hani!Hani from Oasis came out to perform maintenance on my furnace, and I can honestly say he was one of the best HVAC technicians I've ever dealt with. His knowledge, professionalism, and attention to detail were outstanding!For over four years, I've been dealing with an unusual smell coming from my HVAC system whenever the heat or AC was running. Several technicians have looked at it over the years, but no one could give me a clear explanation of what might be causing it.Hani was the first technician to take the time to thoroughly explain the potential causes, walk me through the system, and discuss possible solutions. His depth of knowledge was impressive, and he explained everything in a way that was easy to understand.After four years of unanswered questions, I finally have a much better understanding of the issue, thanks to Hani. His professionalism and customer service were truly exceptional.I can't recommend Hani highly enough!** I'll definitely be using Oasis again, and I'll specifically be requesting Hani for any future HVAC service. An excellent technician and an outstanding experience from start to finish!
Quick and responsive service! Highly recommend Joseph!
excellent service.. Efficient, very professional and cordius. Hector and Joseph were great.
Read real customer experiences and discover what makes our team a trusted choice for home services.
Got questions?
Find answers to common home service questions and get the information you need to move forward with confidence.
To clear a badly clogged drain with standing water, remove the standing water, loosen the blockage safely, and restore flow without using caustic chemicals. Most severe clogs come from hair, grease, or wipes packed near the trap or the first section of pipe, not deep in the sewer. If several fixtures back up at once or there’s sewage in the drain, treat it as urgent because the main line may be blocked. Our plumbers handle this work around Hinsdale regularly and can escalate to sewer cleaning or repair when a simple clearing won’t hold.
Try these steps in order:
Stop immediately if you hear gurgling from nearby fixtures or smell sewage.
Updated: 2026-10-24
Need help in Hinsdale, IL? Call (773) 320-5395 or book online.
24-hour AC repair cost is only confirmed after an on-site diagnosis, because price depends on the exact fault and any after-hours labor. The biggest driver is how long the fix takes; parts and refrigerant needs also influence total cost. Many late-night no-cool calls come down to a single electrical fault rather than a major failure. We provide transparent pricing with 24-7-365 emergency availability, and we regularly handle urgent visits throughout the River Forest area.
Cost factors your technician will assess:
If the repair is minor, fix it; if failures repeat or the compressor is involved, discuss replacement options to stop sinking money into downtime. Turn the system off if the breaker trips or the outdoor unit ices over to prevent further damage.
Updated: 2026-10-24
Need help in River Forest, IL? Call (773) 320-5395 or book online.
Trenchless sewer line replacement is priced per foot based on site conditions, and the exact cost is confirmed after a camera inspection and written quote. The work scope, required setup, and any spot repairs drive most of the price. We regularly complete trenchless projects in the Deerfield area, so we plan around mature trees, irrigation, and tight setbacks. Short, complex jobs can carry a higher effective per‑foot rate than long straight runs, and a brief open trench may still be needed if the pipe has collapsed.
Your quote typically factors in:
Same- or next-day scheduling and 24/7 emergency response are available. Schedule a camera inspection to lock in an exact per‑foot price before work begins.
Updated: 2026-10-24
Need help in Deerfield, IL? Call (773) 320-5395 or book online.
Furnace replacement cost for most homeowners is confirmed after an on-site evaluation because price depends on equipment size, efficiency, and installation conditions. The biggest swing usually comes from matching the new furnace to your existing ductwork and venting while meeting current code. If a heat exchanger is cracked or the unit has recurring breakdowns, replacement is typically the smarter long-term choice. In our experience, venting changes and a new gas shutoff can move a bid more than the furnace itself. We regularly handle replacements in the North Shore, including Winnetka homes. Financing is available: 60 Month Financing with Approved Credit.
What drives price most:
Schedule an in-home assessment to receive a firm, written quote before you decide.
Updated: 2026-10-24
Need help in Winnetka, IL? Call (773) 320-5395 or book online.
Plumbing maintenance for a typical home includes routine inspections, cleaning, and small adjustments that keep water supply, drains, and fixtures working safely and efficiently. Most tasks aim to catch minor leaks, slow drains, and water-heater sediment before they turn into costly emergencies. Technicians in the Chicago area also pay attention to freeze risks, hard water scale, and older shutoff valves often found in vintage buildings. Seasonal Maintenance Plans are available for ongoing care.
Common tasks a visit can cover:
Know your main water shutoff location and use it if a leak suddenly worsens.
Updated: 2026-10-24
Need help in Chicago, IL? Call (773) 320-5395 or book online.