Indianapolis homeowners face a true four-season HVAC challenge. Winter lows drop to zero, summer highs reach the low 90s with noticeable humidity, and your heating system runs five or more months out of the year. That heating-dominated climate (IECC Zone 5A) means furnace performance is the top priority for most households, though your AC gets a solid workout from June through August. This guide covers installed HVAC costs specific to the Indianapolis metro, AES Indiana and CenterPoint Energy rebate details, Marion County permit requirements, and the Indiana Energy Saver program.
TL;DR: Most Indianapolis homeowners pay $5,200–$14,800 for a complete HVAC replacement. Indianapolis is IECC Climate Zone 5A (cold winters down to 0 degrees F, warm humid summers to 91 degrees F). AES Indiana offers rebates up to $575 on a qualifying heat pump, and CenterPoint Energy offers $200–$300 on a high-efficiency gas furnace. A mechanical permit is required through the Marion County Department of Business and Neighborhood Services. Heat pumps with gas backup (dual fuel) are gaining popularity in the metro’s climate. Get your personalized estimate.
How Much Does HVAC Replacement Cost in Indianapolis?
Indianapolis HVAC labor costs run close to the national average, which keeps installed prices in line with what you see in most Midwest metros (including nearby Columbus, Ohio). The biggest cost driver is the type of system you choose and the efficiency rating. A basic single-stage AC paired with a gas furnace starts around $5,200 for a smaller home, while a high-efficiency variable-speed heat pump system in a larger home can reach $14,800 before rebates.
| System Type | Home Size | Installed Cost (before rebates) |
|---|---|---|
| Single-stage AC + gas furnace | 1,000–1,500 sq ft | $5,200–$8,200 |
| Two-stage AC + gas furnace | 1,500–2,000 sq ft | $7,500–$10,800 |
| Variable-speed AC + gas furnace | 2,000–2,500 sq ft | $10,200–$13,800 |
| Heat pump (replaces both AC and furnace) | 1,000–2,000 sq ft | $7,000–$12,200 |
| Dual fuel heat pump + gas furnace backup | 1,500–2,500 sq ft | $9,500–$14,800 |
| Ductless mini-split (single zone) | 400–800 sq ft | $2,400–$4,800 |
These are complete installed costs including equipment, labor, permits, and system startup. After utility rebates, you can subtract up to $575 from AES Indiana for a qualifying heat pump and up to $300 from CenterPoint Energy for a high-efficiency furnace. See our complete HVAC replacement cost guide for national context and system-type breakdowns.
What Drives HVAC Costs in Indianapolis?
Several factors specific to the Indianapolis metro affect your installed price compared to other Midwest cities.
Heating-Dominated Climate (Zone 5A)
Indianapolis logs roughly 5,500 heating degree days and only 1,100 cooling degree days annually. That ratio means your furnace or heat pump heating mode does the heavy lifting from November through March, with below-freezing stretches that can last weeks. The ASHRAE 99% winter design temperature is 0 degrees F, so your heating equipment needs to handle genuinely cold conditions. A 95%+ AFUE gas furnace is the standard recommendation for Zone 5A, and upgrading from an 80% AFUE unit to a 96% AFUE unit can cut your winter gas bill by 15–20%. Summer humidity is moderate compared to southern Indiana, but your AC still runs steadily from late May through September. Learn how efficiency ratings affect replacement cost when choosing between SEER2 tiers.
Older Homes and Ductwork Considerations
The Indianapolis metro has a large stock of homes built between the 1940s and 1970s, particularly in neighborhoods like Broad Ripple, Meridian-Kessler, and Irvington. These older homes often have original ductwork that may be undersized, leaky, or poorly insulated. If your existing ducts need sealing or minor modifications during the replacement, expect to add $500–$2,000 to the project. AES Indiana offers a $300 rebate on Aeroseal advanced duct sealing for electric-heat homes. If you are converting from an older gas-only system to a heat pump, you may also need an electrical panel upgrade ($1,500–$3,000), since many older homes have 100-amp panels that cannot support a heat pump’s power draw. Check our cost by home size guide for sizing context.
Contractor Market and Timing
Indianapolis has a large and competitive HVAC contractor market, with national chains like Service Experts and regional firms like Peterman Brothers alongside dozens of independent shops. That competition helps keep labor rates near the national average. To qualify for AES Indiana rebates, you must use a member of their Quality Contractor Network (QCN). CenterPoint Energy also works with participating contractors for instant rebate discounts. Booking your replacement in spring (March through May) or early fall (September through October) typically yields better pricing and shorter wait times than mid-summer or mid-winter emergency replacements.
What AES Indiana and CenterPoint Rebates Are Available?
Indianapolis homeowners can stack rebates from two utilities plus the state program. AES Indiana covers electric equipment (AC, heat pumps), and CenterPoint Energy covers gas equipment (furnaces, boilers).
AES Indiana Electric Rebates
AES Indiana offers tiered rebates based on the efficiency rating of your new equipment. You must work with a Quality Contractor Network member to qualify. Rebates are applied as an instant discount on your invoice or mailed as a check within 4-6 weeks.
- Central AC (SEER2 15.2): $300
- Central AC (SEER2 16.15): $350
- Central AC (SEER2 17.1+): $400
- Air source heat pump (SEER2 15.2): $275
- Air source heat pump (SEER2 16.15): $375
- Air source heat pump (SEER2 17.1+): $575
- Mini-split heat pump (SEER2 15.2 to 23+): $100–$725
- Smart thermostat: $50
- Aeroseal duct sealing (electric heat only): $300
CenterPoint Energy Gas Furnace Rebates
If your home uses natural gas for heating, CenterPoint Energy Indiana offers rebates on high-efficiency furnaces and boilers. Applications must be postmarked within 60 days of installation.
- High-efficiency gas furnace (97%+ AFUE): $200–$300
- High-efficiency boiler: $300
- Smart thermostat: $30–$50
Indiana Energy Saver Program (HOMES and HEAR)
Indiana launched the Indiana Energy Saver Program in May 2025, funded by $182 million in federal IRA dollars. The program has two tracks. The Home Efficiency Rebates (HOMES) program is open to all Indiana homeowners and covers whole-home retrofits that achieve at least 20% energy savings, including HVAC system upgrades. The Home Appliance Rebates (HEAR) program targets low and moderate income households (below 150% of Area Median Income) and can provide up to $8,000 toward a heat pump system and up to $14,000 total for qualifying upgrades. Both programs apply the rebate as an upfront discount at the point of sale through a qualified contractor. You can apply at IndianaEnergySaver.com. These rebates can be stacked with AES Indiana and CenterPoint utility rebates. See our full guide to HVAC tax credits and rebates for additional details.
Do You Need a Permit to Replace HVAC in Indianapolis?
Yes. The Indianapolis/Marion County Department of Business and Neighborhood Services requires a mechanical permit for all HVAC replacement work. Permit fees are based on the total project valuation. For a typical residential HVAC replacement valued between $5,000 and $15,000, expect permit fees of approximately $100–$225. Your contractor handles the permit application and scheduling of inspections in most cases. Working without a permit can result in fines and complications if you sell your home. Learn more about what goes into an HVAC replacement estimate including permit costs.
Frequently Asked Questions
How much does a new furnace cost in Indianapolis?
A new gas furnace installed in Indianapolis typically costs $2,800–$6,500 depending on efficiency rating and capacity. A basic 80% AFUE single-stage furnace starts around $2,800, while a 96%+ AFUE two-stage or modulating furnace runs $4,500–$6,500. After the CenterPoint Energy rebate of $200–$300, your out-of-pocket drops accordingly. Most Indianapolis homes need a furnace rated for the 0 degree F winter design temperature, so contractors size based on a full Manual J load calculation. See our furnace replacement cost guide for a detailed national breakdown.
Should I switch to a heat pump in Indianapolis?
Heat pumps work in Indianapolis, but the climate favors a dual fuel setup. Modern cold-climate heat pumps can operate efficiently down to about 5-10 degrees F, but Indianapolis sees extended stretches at or below zero. A dual fuel system pairs a heat pump with a gas furnace backup, giving you electric heating efficiency for most of the winter and gas backup during the coldest days. This setup typically costs $9,500–$14,800 installed but qualifies for both the AES Indiana heat pump rebate (up to $575) and the CenterPoint furnace rebate ($200–$300). If your home is all-electric, a standalone heat pump with electric resistance backup is the standard option.
What AES Indiana rebates can I get for a new AC?
AES Indiana offers $300–$400 for a qualifying central air conditioner, tiered by SEER2 rating.
- Base tier (SEER2 15.2): $300 rebate
- Mid-tier (SEER2 16.15): $350 rebate
- High-efficiency (SEER2 17.1 or higher): $400 rebate
You must use a contractor from the AES Indiana Quality Contractor Network. Many QCN contractors apply the rebate as an instant discount on your invoice, so you pay the reduced amount upfront rather than waiting for a check.
How long does HVAC replacement take in Indianapolis?
A straightforward AC and furnace replacement in Indianapolis takes one day for most homes. If your project involves ductwork modifications, an electrical panel upgrade, or a system conversion (gas to heat pump), expect two to three days. Scheduling varies by season. During peak summer months (June through August), wait times for non-emergency installs can stretch to two or three weeks. Booking in spring or fall typically means a one-week turnaround from signed contract to installation day.
Can I stack utility rebates with the Indiana Energy Saver program?
Yes. The Indiana Energy Saver Program (HOMES and HEAR) can be combined with AES Indiana and CenterPoint Energy utility rebates, as long as the total rebate amount does not exceed the total project cost. For example, a qualifying heat pump installation could receive up to $575 from AES Indiana, plus a HOMES rebate through the state program, significantly reducing your out-of-pocket cost. Income-qualified households may also access HEAR rebates of up to $8,000 for a heat pump system. Apply first through IndianaEnergySaver.com, then submit your utility rebate application.
What is the best time of year to replace HVAC in Indianapolis?
March through May and September through October are the best windows. Contractors are less busy between the winter heating rush and the summer cooling rush, so you get faster scheduling and sometimes lower pricing. Indianapolis’s heating-dominated climate means furnace failures peak in December and January, when emergency replacements command premium pricing and wait times. Planning your replacement before the heating season starts gives you more contractor options and time to compare quotes.
If you live near the Ohio border, see our Cincinnati HVAC replacement cost guide for pricing in the tri-state metro area.