Expert Furnace Installation & Replacement in Chicago
Whether you need a new furnace installed or an old system replaced, 999 Heating & Cooling delivers professional installation with top-rated equipment, proper sizing, and a warranty you can count on.
Why Choose 999 Heating & Cooling
- Free in-home estimates with no obligation
- Proper load calculation for correct system sizing
- Top-rated brands: Carrier, Lennox, Trane, and more
- Professional installation by licensed technicians
- Manufacturer and labor warranties included
- Financing options available
Is It Time to Replace Your Furnace?
Most furnaces last 15–20 years. If your system is aging, requiring frequent repairs, or driving up your energy bills, replacement is often the most cost-effective solution. A new high-efficiency furnace can reduce your heating costs by up to 30% compared to an older system.
Proper Sizing Matters
An oversized or undersized furnace will cycle inefficiently, wear out faster, and fail to keep your home comfortable. We perform a full Manual J load calculation on every installation to ensure your new system is perfectly sized for your home — not just a guess based on square footage.
Top Brands We Install
We install and service all major furnace brands including Carrier, Lennox, Trane, Rheem, Goodman, Bryant, American Standard, and York. We will recommend the best system for your home, budget, and efficiency goals — and we will never push you toward a brand that does not fit your needs.
What to Expect on Installation Day
Our installation crew arrives on time, protects your floors and work areas, removes and disposes of your old equipment, installs and tests the new system, and walks you through operation and maintenance before leaving. Most installations are completed in a single day.
Frequently Asked Questions
How long does a furnace installation take?
Most furnace replacements are completed in 4–8 hours. Complex installations involving ductwork modifications may take longer. We will give you a realistic timeline during your free estimate.
What size furnace do I need?
Furnace sizing depends on your home's square footage, insulation, ceiling height, window area, and local climate. We perform a proper Manual J load calculation — not a rough estimate — to ensure your new system is correctly sized.
Do you offer financing for furnace replacement?
Yes. We offer flexible financing options to help make a new furnace affordable. Ask about our current financing promotions when you call for your free estimate.
What warranty comes with a new furnace?
Most new furnaces come with a 10-year parts warranty from the manufacturer. We also provide a labor warranty on our installation work. Extended warranty options are available.
Other Services We Offer
Ready to Schedule Furnace Installation & Replacement?
Call us now or book online. We serve Chicagoland and surrounding areas.