HVAC Installation Chicago, IL

HVAC Installation in Chicago, IL — AC, Furnace & Heat Pump

Chicago is in IECC climate zone 5A, a cold climate with humid summers, so most homes need dependable heating in winter and cooling in summer. Whether you need a central AC replacement, a furnace replacement, or a cold-climate heat pump that handles both seasons, HVAC Install Hub connects Chicago homeowners and businesses with local HVAC contractors.

Replacing a furnace or air conditioner before it fails leaves time to compare quotes and arrange the City of Chicago permit. A system that breaks down in mid-winter or mid-summer leaves fewer options.

We are a referral and lead-generation service. We do not perform HVAC work directly. When you submit a quote request, we connect you with local HVAC contractors in the Chicago area at no cost to you.

HVAC Services Available in Chicago

• AC installation and central air conditioning replacement
• Gas, electric, and oil furnace installation and replacement
• Air-source heat pump installation — heating and cooling in one system
• Ductless mini-split installation for additions, garages, and zone control
• Commercial HVAC — rooftop units, VRF systems, and packaged commercial installs
• Ductwork installation, replacement, and sealing to fix rooms a new unit alone will not

How It Works in Chicago

Submit a free quote request with your service type and Chicago address. We connect your request with HVAC contractors who serve Chicago, so you can discuss your project and get a no-obligation estimate. You choose the contractor and timeline — there is no cost to use our referral service.

Installing HVAC in Chicago: What Is Local

Last reviewed October 22, 2026 · How we research

Chicago is in IECC climate zone 5A, the cold, moist zone, so a home's system has to heat through Chicago winters and cool through humid summers. ComEd delivers the city's electricity, and Peoples Gas delivers natural gas to more than 898,000 customers in Chicago, so switching from a gas furnace to a heat pump moves your heating from one utility bill to the other. The City of Chicago says complete replacement of a heating, cooling or ventilation appliance generally requires a building permit. The Department of Buildings handles most HVAC replacements through its Express Permit Program, which covers replacing equipment with equipment that does the same job, including a change of energy source, and a new heat pump or air conditioner serving a single unit when it is based on a load calculation. Replacement equipment must meet the efficiency requirements in section R403 of the Chicago Energy Transformation Code, recorded on the City's Form 408EX. Rooftop or truss-mounted equipment also needs a structural evaluation letter.

• Climate: IECC climate zone 5A (cold, moist)
• Utilities: ComEd delivers electricity; Peoples Gas delivers natural gas to more than 898,000 customers in the city
• The City of Chicago says complete replacement of a heating, cooling or ventilation appliance generally requires a building permit
• The Express Permit Program covers replacing HVAC equipment with equipment that does the same job, including a change of energy source
• Replacement equipment must meet the efficiency requirements in section R403 of the Chicago Energy Transformation Code, recorded on the City's Form 408EX
• Equipment on a rooftop or attached to a truss needs a structural evaluation letter from an Illinois architect or structural engineer
• Permits: Department of Buildings, Express Permit Program (mechanical / HVAC work)

Weighing a heat pump against a furnace in Illinois? Our heat pump vs gas furnace cost by state compares what each delivered heat for in Illinois in 2024, and our guides to heat pump installation and furnace installation cover what each job involves. Our calculator turns Illinois energy prices into a yearly heating estimate, and how to size a heat pump, AC or furnace explains the load calculation behind a quote.

Sources: Illinois Smart Energy Design Assistance Center: navigating energy codes (Chicago, climate zone 5A) · ComEd news release: northern Illinois service territory · Peoples Gas: service area · City of Chicago: work that does not need a building permit · City of Chicago: Express Permit Program, mechanical (HVAC) work · City of Chicago: Form 408EX, energy and water efficiency certification

Furnace Installation and Heat Pumps in Chicago

Furnace installation in Chicago starts with the City permit. As of October 2026, the Department of Buildings' Express Permit Program covers replacing a furnace with equipment that does the same job and allows a change of energy source. Peoples Gas delivers natural gas in the city and ComEd delivers electricity, so the choice between a new gas furnace and a heat pump is also a choice between the two utilities. On the City's Express Permit energy form, new heating and cooling equipment in residential buildings up to four stories is to be sized with ACCA Manual S from an ACCA Manual J load calculation, and replacement equipment must meet section R403 of the Chicago Energy Transformation Code. For a heat pump expected to carry a Chicago winter, ENERGY STAR's cold-climate criteria set a coefficient of performance of at least 1.75 at 5°F and heating capacity at 5°F of at least 70% of the capacity at 47°F. Some homes keep a gas furnace for the coldest weather alongside a heat pump, a pairing known as dual fuel.

• City of Chicago Express Permit Program, as of October 2026: replacing HVAC equipment with equipment that does the same job, including a change of energy source
• ENERGY STAR cold-climate heat pumps: coefficient of performance of at least 1.75 at 5°F, and at least 70% of their 47°F heating capacity at 5°F
• U.S. Department of Energy minimum for split-system heat pumps made from January 1, 2023: 14.3 SEER2 and 7.5 HSPF2; ENERGY STAR split systems need at least 15.2 SEER2 and 7.8 HSPF2, and 8.1 HSPF2 for its ducted cold-climate level

Sources: City of Chicago: Express Permit Program, mechanical (HVAC) work · City of Chicago: Form 408EX, energy and water efficiency certification · ENERGY STAR: air-source heat pump key product criteria (cold climate) · 10 CFR 430.32(c): central air conditioner and heat pump minimums · Peoples Gas: service area

Air Conditioning Installation in Chicago

Air conditioning installation in Chicago has to meet national efficiency and refrigerant rules as well as the City's code. Illinois is outside the U.S. Department of Energy's Southeast and Southwest regions, which have stricter levels, so the national minimum holds here: 13.4 SEER2 for split-system central air conditioners made from January 1, 2023, and 14.3 SEER2 for split-system heat pumps. Under the EPA's Technology Transitions rule, new residential air conditioning and heat pump systems are limited to refrigerants with a global warming potential of 700 or less from January 1, 2025, although a system whose components were all made or imported before that date can still be installed. The City's Express Permit Program covers a new heat pump or air conditioning system serving a single unit when it is based on a load calculation, and replacement equipment must meet section R403 of the Chicago Energy Transformation Code. A heat pump cools the same way an air conditioner does and also heats, so it is worth pricing alongside a central air conditioner.

• U.S. Department of Energy minimum in Illinois: 13.4 SEER2 for split-system central air conditioners made from January 1, 2023
• EPA Technology Transitions rule: refrigerant global warming potential of 700 or less for new residential systems from January 1, 2025
• Express Permit Program: a new heat pump or air conditioner serving a single unit, based on a load calculation

Sources: 10 CFR 430.32(c): central air conditioner and heat pump minimums · EPA: Technology Transitions HFC restrictions by sector · City of Chicago: Express Permit Program, mechanical (HVAC) work

What an HVAC Installation Involves

Last reviewed October 26, 2026 · How we research

Wherever you live, a complete HVAC installation follows the same sequence. Knowing it makes contractor quotes much easier to compare.

• 01Load calculation. The contractor sizes the system from your home's heat gain and loss with an ACCA Manual J load calculation, not from the size of the unit being replaced. ENERGY STAR tells homeowners to have their contractor verify system size this way, and the City of Chicago's Express Permit energy form calls for new heating and cooling equipment in residential buildings up to four stories to be sized with ACCA Manual S from a Manual J calculation. Our sizing guide explains what goes into that number. An oversized system short-cycles; an undersized one runs constantly.
• 02Equipment choice. Central AC with a gas furnace, a heat pump, a dual-fuel pairing of the two, or ductless mini-splits for homes without ducts. For split systems made from January 1, 2023, the U.S. Department of Energy minimum in Illinois is 13.4 SEER2 for a central air conditioner and 14.3 SEER2 with 7.5 HSPF2 for a heat pump. Our SEER2, EER2 and HSPF2 guide explains what those numbers mean when you compare models.
• 03Ductwork check. Existing ducts are inspected for size and leaks. Undersized or leaky ductwork limits any new system, however efficient. ENERGY STAR's list for a duct job includes inspecting the whole duct system, sealing leaks with mastic, metal tape or an aerosol-based sealant, and insulating ducts in attics, crawlspaces and garages to R-6 or higher.
• 04Permit. The City of Chicago says complete replacement of a heating, cooling or ventilation appliance generally requires a building permit. Its Express Permit Program covers replacing equipment with equipment that does the same job, including a change of energy source, and the new equipment must meet section R403 of the Chicago Energy Transformation Code, recorded on the City's Form 408EX. Ask each contractor who will pull the permit.
• 05Installation. Old equipment is removed and the new system set, connected, and wired. Ask for the expected schedule in writing; new ductwork or a multi-zone system takes longer than a like-for-like swap.
• 06Commissioning. Refrigerant charge, airflow, and thermostat operation are checked against the manufacturer's specifications before the final inspection. Where ducts were sealed, ENERGY STAR adds two checks: airflow after the repairs, and a combustion safety test so that no gas or oil appliance backdrafts.

When comparing quotes, check that each one names the load calculation, the exact equipment model numbers, permit fees, and removal of the old equipment. A lower price that leaves one of those out is usually not the cheaper job. For typical price ranges by system type, see our HVAC installation cost guide. If you are choosing between a heat pump and a gas furnace, our cost comparison by state shows what each delivered heat for in Illinois and every other state in 2024. If your air conditioner gives out in the middle of a heat wave, see what to do when your AC fails in a Chicago heat wave.

Sources: ENERGY STAR: air-source heat pumps (sizing with Manual J) · City of Chicago: Form 408EX, energy and water efficiency certification · 10 CFR 430.32(c): central air conditioner and heat pump minimums · ENERGY STAR: hire a professional contractor for duct improvement projects · City of Chicago: work that does not need a building permit · City of Chicago: Express Permit Program, mechanical (HVAC) work

HVAC Installation Cost in Chicago, IL

HVAC installation costs in Chicago depend on the system type and capacity, the condition of the ductwork, any venting or electrical changes, and the City of Chicago permit fee, so the reliable figure is a written quote for your home. When comparing quotes, check that each lists the equipment model numbers, the load calculation, the permit and removal of the old equipment.Request a free quote to get started.