Costco HVAC Replacement Cost in 2026
The Costco HVAC replacement cost in 2026 typically runs $4,000–$8,000 for an air conditioner replacement, $3,000–$7,000 for a furnace replacement, $6,000–$12,000 for a full AC-and-furnace system, and $7,000–$15,000 for a high-efficiency heat pump — equipment and standard installation included. Members then receive a Costco Shop Card worth roughly 10–15% of the project cost, which brings the effective net cost meaningfully below the headline quote.
Quick-answer table (typical 2026 Costco HVAC pricing):
| System type | Typical quote | Typical Shop Card (10–15%) | Effective net cost |
|---|---|---|---|
| Air conditioner replacement | $4,000–$8,000 | $400–$1,200 | $3,600–$6,800 |
| Furnace replacement | $3,000–$7,000 | $300–$1,050 | $2,700–$5,950 |
| Full system (AC + furnace) | $6,000–$12,000 | $600–$1,800 | $5,400–$10,200 |
| Heat pump system | $7,000–$15,000 | $700–$2,250 | $6,300–$12,750 |
| Ductless mini-split (per zone) | $3,000–$6,000 | $300–$900 | $2,700–$5,100 |
A quick note on how to read these: Costco doesn’t install anything itself. The program routes you to a local, pre-screened Lennox dealer who performs the in-home assessment and installation. Your quote comes from that dealer — Costco’s role is vetting, program pricing, and the Shop Card reward. This guide explains exactly how the program works, what each system costs, and whether the Costco route beats getting your own quotes.
How the Costco HVAC Program Works
Costco partners exclusively with Lennox for its US home HVAC program. When you request a consultation — online through the Costco Services site or at the services kiosk in your local warehouse — Costco forwards your request to the authorized Lennox dealer serving your area. Here’s the step-by-step process:
| Step | What happens | Timeline |
|---|---|---|
| 1. Request a consultation | Submit your details online or at the warehouse kiosk | Same day |
| 2. Dealer contacts you | The local Lennox dealer calls to schedule | 1–2 days |
| 3. In-home assessment | Technician measures your home, inspects ductwork, discusses needs | ~1–2 hours |
| 4. Itemized quote | You receive a detailed quote for equipment + installation | A few days |
| 5. Installation | Certified technicians remove the old system and install the new one | Usually one full day |
| 6. Costco Shop Card | Shop Card for 10–15% of the project cost is mailed to you | 2–4 weeks after completion |
Two things worth knowing. First, because Lennox is a premium brand, the headline quote often looks higher than a quote from an independent contractor installing a budget brand like Goodman. The Shop Card closes much of that gap — a $10,000 system with a 10% Shop Card nets out at $9,000, before you consider the extended warranty options Costco members can access. Second, the dealer — not Costco — sets the quote, so prices vary by region, home size, and installation complexity just like any HVAC bid.
Costco HVAC Replacement Cost by System Type
Air conditioner replacement through the program typically runs $4,000–$8,000 depending on tonnage and SEER2 rating. A 2-ton 14.3 SEER2 unit for a smaller home lands at the bottom of that range; a 4–5 ton 18 SEER2 unit for a large home pushes toward the top. Standard installation — condenser pad, lineset connection, electrical hookup, startup and testing — is included; extensive ductwork modification is extra.
Furnace replacement runs $3,000–$7,000, driven by BTU capacity and AFUE efficiency. An 80% AFUE single-stage furnace for a modest home is at the low end; a 96%+ AFUE two-stage or variable-speed Lennox furnace runs toward $4,500–$7,500 installed. Venting changes (for example, switching from a conventional to a high-efficiency condensing furnace) add cost.
Full system replacement — furnace plus AC together — runs $6,000–$12,000 for most homes, though larger homes or premium equipment can push past $15,000. This is where the program’s math usually works best: the combined job carries the biggest Shop Card (a 10% card on a $12,000 job is $1,200 back), and you’re replacing everything at once instead of paying for two separate installations. Our furnace and AC replacement cost guide breaks down what drives these totals independent of the Costco channel.
Heat pump systems run $7,000–$15,000 through the program. Heat pumps are Lennox’s strength in the Costco lineup, and they’re worth a serious look if you’re replacing both heating and cooling — one system does both jobs, and federal tax credits can take up to $2,000 off the net cost for qualifying high-efficiency models. The U.S. Department of Energy’s heat pump guide explains how efficiency ratings translate into real operating costs.
Ductless mini-splits run $3,000–$6,000 per zone. They’re the right answer for additions, converted garages, and homes without ductwork — and the Costco program does cover them through participating dealers, though availability varies by region.
Costco Shop Card: How the Reward Actually Works
The Shop Card is the program’s headline benefit, so here’s the fine print:
| Detail | How it works |
|---|---|
| Value | Typically 10–15% of the total project cost (promotions vary by season) |
| Timing | Mailed 2–4 weeks after installation is complete and paid for |
| Where it works | Any Costco warehouse or costco.com — groceries, gas, everything |
| Stacking | Executive members also earn the annual 2% reward on the purchase |
| Restrictions | It’s a gift card, not cash; it doesn’t reduce the financed amount |
The Executive membership stacking is genuinely valuable and often overlooked: on a $10,000 system with a 10% Shop Card ($1,000) plus 2% Executive reward ($200), you’re getting $1,200 back — an effective 12% discount on top of whatever the dealer’s quote was. If you’re already an Executive member, that’s free money; if you’re not, the HVAC purchase alone can justify the membership upgrade for the year.
Costco vs Independent Contractor: Honest Comparison
| Factor | Costco HVAC program | Independent contractor |
|---|---|---|
| Typical full-system quote | $6,000–$12,000 (before Shop Card) | $7,500–$12,000 |
| Effective net (after Shop Card) | $5,400–$10,200 | $7,500–$12,000 |
| Brand choice | Lennox only | Any brand the contractor carries |
| Contractor vetting | Pre-screened by Costco | You vet (check license, reviews, insurance) |
| Quotes to compare | One program quote (+ your own comparisons) | Get 3+ yourself |
| Warranty | Standard Lennox + extended options for members | Varies by contractor and brand |
| Sales pressure | Consultation is free, no obligation | Varies — some contractors are pushy |
| Flexibility | Fixed process, limited customization | Fully flexible scope and equipment |
The honest verdict: the Costco route is a strong default for members who want a vetted contractor and a straightforward process without shopping the market hard. But the program is not a substitute for comparing quotes. An independent contractor installing a mid-tier brand can sometimes beat the net Costco price — especially if you time the purchase for the off-season, when independents discount aggressively. The smart move: get the Costco consultation and two independent quotes, then compare net-of-Shop-Card pricing line by line.
What Costco HVAC Quotes Usually Include — and Don’t
Included in a standard quote: equipment, standard installation labor, removal and disposal of the old system, basic electrical connections, thermostat (often a smart thermostat upgrade is offered), system startup and commissioning, and the manufacturer’s warranty registration.
Common extras that inflate the bill: ductwork modifications ($1,000–$5,000+), electrical panel or circuit upgrades ($500–$2,000), permits (usually passed through at cost, $50–$300), asbestos or old-insulation remediation if discovered, and structural work to accommodate a relocated unit. The new HVAC system cost guide for a 2,000 sq ft home shows how these add-ons stack onto a standard replacement.
DIY vs Hiring a Pro
| Factor | DIY | Costco program / licensed pro |
|---|---|---|
| Cost | Equipment only ($2,500–$7,000) | $6,000–$12,000 quote, $5,400–$10,200 net after Shop Card |
| Legal | Illegal without EPA 608 certification for refrigerant work | Licensed, insured, permitted |
| Warranty | Usually voided | Full Lennox warranty + extended options |
| Shop Card | Not available | 10–15% back on the project |
| Best for | Thermostats and filters | Every full replacement |
The Shop Card alone settles this one: you can’t earn it on a DIY install, and the legal and warranty issues with DIY HVAC make it a non-starter anyway.
How to Get the Best Deal Through Costco
- Get the consultation in the off-season. Spring and fall pricing is 5–15% lower, and dealers have more time for a careful install — the Shop Card stacks on top of seasonal discounts.
- Ask about current Shop Card promotions. The percentage varies by promotion (10% vs 15% is a $500 difference on a $10,000 job) — ask what tier is running before you sign.
- Compare against two independent quotes. The program’s value is real, but you won’t know it’s the best deal unless you compare. Same equipment specs, itemized lines.
- Factor in the Executive 2% reward. If you’re not an Executive member, run the math: 2% of a $10,000 system is $200, which alone covers most of the membership upgrade.
- Ask about federal tax credits. Qualifying heat pumps and high-efficiency systems can earn up to $2,000 in federal credits — ENERGY STAR’s federal tax credit page lists what’s current. Credits stack with the Shop Card.
- Use the HVAC replacement cost calculator. Our HVAC replacement cost calculator gives you an independent budget range to sanity-check any quote — Costco’s or anyone else’s.
Frequently Asked Questions
How much does Costco charge to replace an HVAC system?
In 2026, Costco’s program typically quotes $4,000–$8,000 for AC replacement, $3,000–$7,000 for a furnace, $6,000–$12,000 for a full AC-and-furnace system, and $7,000–$15,000 for a heat pump. Members then receive a Costco Shop Card worth roughly 10–15% of the project cost, bringing effective net costs to about $3,600–$6,800, $2,700–$5,950, $5,400–$10,200, and $6,300–$12,750 respectively.
Is Costco HVAC cheaper than a regular contractor?
Often yes on a net basis, but not always. The headline quotes are set by the local Lennox dealer and can look higher than independent bids using budget brands. After the 10–15% Shop Card (plus 2% for Executive members), Costco’s net pricing is usually competitive — but independent contractors can win on price, especially in the off-season. Get the Costco quote and two independent quotes.
What brand does Costco use for HVAC?
Lennox, exclusively, in the US program. The work is performed by a local authorized Lennox dealer that Costco has pre-screened. If you want a different brand (Carrier, Trane, Goodman), you’ll need to go outside the program.
How long does a Costco HVAC installation take?
A typical replacement takes one full day. The in-home consultation takes 1–2 hours, the quote arrives within a few days, and the Shop Card is mailed 2–4 weeks after the completed installation.
Does the Costco HVAC program include ductwork?
Standard installation includes connecting to your existing ductwork, but ductwork modifications or replacement ($1,000–$5,000+) are extra and quoted separately by the dealer. If your ducts are old, leaky, or undersized, have them assessed during the consultation — bad ducts can waste 20–30% of a new system’s output.
The Bottom Line
Costco HVAC replacement costs $4,000–$8,000 for AC, $3,000–$7,000 for furnaces, $6,000–$12,000 for full systems, and $7,000–$15,000 for heat pumps — with a 10–15% Costco Shop Card (plus 2% for Executive members) bringing effective net costs notably lower. The program’s real value is a pre-screened Lennox dealer, a no-pressure process, and that Shop Card reward — not necessarily the lowest headline quote. Use it as your strong default: get the free consultation, then compare against two independent quotes and check your price against the HVAC cost calculators. Booked in the spring or fall off-season, the Costco route plus seasonal discounts is one of the cheapest ways to replace a system in 2026.
Prices are typical 2026 US ranges gathered from contractor pricing data and industry sources; Costco program pricing, Shop Card percentages, and promotions vary by region and season. Your actual cost depends on system size, efficiency tier, home layout, and installation complexity. Always get the dealer’s itemized quote in writing.
1 thought on “Costco HVAC Replacement Cost: 2026 Member Pricing Guide”