CALL YOUR TRUSTED LOCAL EXPERTSSM
Free Furnace Estimates & Furnace Sales in Chicago
Get Up To $4,000 Off + 0% Financing for 72 Months
on New Furnace & Comfort Systems!
Just Announced: New Tax Credits and Manufacturer Rebates up to $4,000!
Plus 0% Financing for 72 Months with Approved Credit!
- New Furnace from $39 per month
- Furnace & A/C combos from $57 per month
We'll beat any competitor's estimate by up to $1000, GUARANTEED!

SCHEDULE YOUR FREE ESTIMATE Today!




What’s Included in a Free Furnace Estimate?
When you schedule your free furnace estimate, a licensed Four Seasons technician will arrive at your home ready to evaluate your heating needs. We assess your current system, home size, energy preferences, budget, and comfort goals—then recommend options tailored to your requirements. No pressure, no gimmicks, just expert, straightforward pricing and guidance from Chicago’s top-rated HVAC team. Learn more about our furnace services and the associated expenses by reading our comprehensive guide on furnace replacement costs.
Save More with Our Chicago Furnace Sales
If you are searching for the best furnace sale in Chicago, you’ve found it with Four Seasons. Not only do we include solid guarantees with our HVAC services, but we also offer unbeatable values with up to $4,000 off new comfort systems and our HVAC zero percent financing for six years! You can also save even more with our exclusive online coupons for impressive seasonal discounts, furnace specials, sales, and specific product discounts, such as Lennox gas furnace clearance sales (we are Chicago’s top-rated Lennox dealer).
Our full-scale furnace services will have your house feeling like a home again, no matter what it requires. Not to mention, our seasonal furnace specials and new furnace sales for Chicago residents make it easier than ever to stay warm for less, whether your unit requires annual maintenance, you are replacing an older furnace and upgrading to a high-efficiency model, or your not-so-old furnace requires repairs.
Four Seasons’ financing is affordable, our services are fast, and our discounts are steep—that’s why Chicago homeowners have trusted us for decades to provide reliable HVAC, electrical, and plumbing services.
Experience The Four Seasons Difference
- Your Free Estimate: Our friendly and experienced comfort consultant will provide a FREE in-home assessment and estimate to help you find the best air conditioner or comfort system for your home and budget.
- Expert Installation: Our licensed, background-checked, and fully insured installers undergo continual education at our in-house training center to ensure they’re ready for even the most complex installations.
- Superior Products: We partner with only the most proven and trusted manufacturers to provide you with the best comfort system that will last for years to come. We will discuss options, then install your chosen equipment from top-rated brands like Lennox.
- Industry Leading Guarantees: All of our work is backed by industry-leading guarantees for added peace of mind. Our company has also been awarded the BBB Torch Award, celebrating our tradition of trust and appreciation from customers over the years, along with our thousands of positive Google reviews.
- Phenomenal Customer Service: Our in-house customer service team is here for you 24/7, before, during, and after your installation. We will even call you afterward to ensure a job well done!
- $1000 Price Match Guarantee: Found a lower furnace estimate? We'll beat any competitor's estimate by up to $1000, GUARANTEED. Including so-called "buy one, get one" offers.
Furnace Sale & Service FAQs
We Beat Any Competitive Quote
We beat any competitive quote by up to $1,000
Same Day Service,
GUARANTEED!
Our technicians are available 24/7, including nights, weekends, and holidays—at no extra charge and we guarantee same day service!
100% Satisfaction Guaranteed
We won't stop until you are 100% satisfied.
No Lemon Guarantee
We will replace your entire furnace NO CHARGE if your heat exchanger fails within 25 years of the installation date. Annual maintenance must be performed.
I called to get a estimate. They came out the next day to do the estimate. And on the following day they did install. They techs were fast and knew exactly how to get the install done correctly. Made sure everything was running perfectly and that I was satisfied before they left. Everything was installed exactly as the salesman described. So far I very happy with my new Lennox furnace and central air system.
- Electon N