Most home warranties cover HVAC systems — but coverage caps range from $1,500 to $6,500+ depending on the provider. Here’s exactly what’s covered and what isn’t.

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Yes, HVAC (heating, ventilation, and air conditioning) is one of the most consistently covered systems across nearly every home warranty provider. That’s for good reason: it’s also one of the most expensive systems in your home to repair or replace.

“Covered” doesn’t mean “covered without limits,” and the gap between providers on this specific question is bigger than almost any other coverage category. This guide breaks down exactly what’s typically included, what’s excluded, and — critically — how much providers actually cap their payout when your system needs a full replacement.

Coverage Ledger comparison tool.

What’s Typically Covered

Most home warranty plans that include HVAC coverage will pay for repair or replacement of:

• Central air conditioning units (compressor, condenser, evaporator coil)
• Furnaces and heating systems (gas, electric, oil)
• Heat pumps
• Ductwork, in many (not all) plans
• Thermostats, in many plans
• Blower motors and fan components

Coverage generally applies when a system fails from normal wear and tear — a compressor burning out after 12 years of use, for example — rather than from an external event like storm damage (that’s a homeowners insurance claim, not a home warranty claim; see Home Warranty vs Homeowners Insurance: What’s the Difference?).

What’s Usually Excluded

• Damage from lack of maintenance — most providers require proof of regular HVAC servicing and can deny a claim if you can’t show it
• Code violations and permit costs uncovered during a repair, unless you’ve specifically purchased a plan tier that includes this (Old Republic’s Deluxe/Elite tiers and AHS’s ShieldPlatinum both include it, for example)
• Freon/refrigerant leaks — several providers exclude this specifically or cap refrigerant replacement separately (Select Home Warranty caps this at $200/year, for instance, and excludes Freon leaks from broader coverage)
• Pre-existing conditions — a system that was already malfunctioning before your coverage began
• Window units and portable AC — typically excluded, since coverage generally applies to built-in/central systems
• Cosmetic issues that don’t affect function

The Number That Actually Matters: The Coverage Cap

This is where providers genuinely diverge, and it’s the single most important number to compare before assuming your HVAC system is “covered” in any meaningful sense. A full central AC replacement typically costs $4,500–$8,000 depending on your region and system size — so a low cap can leave you paying most of that bill yourself even with an approved claim.

Provider	HVAC Coverage Cap
Old Republic Home Protection	Up to $6,500/system
American Home Shield	$5,000/system
Choice Home Warranty	$3,000 combined for heating + AC
Select Home Warranty	$3,000/term
2-10 Home Buyers Warranty	$2,000 standard, $5,000 with Luxury Package upgrade
Liberty Home Guard	$2,000/item (standard cap)
Cinch Home Services	$1,500/claim — the lowest of major providers
AFC Home Club / First American	Reported as uncapped by some sources — confirm in writing, since at least one source notes AFC’s uncapped claims are still bounded by a broader annual aggregate limit

For the full interactive comparison across all nine providers, including a side-by-side view of exactly how much of a $6,000 replacement each company would actually cover, see our Coverage Ledger comparison tool.

Practical takeaway: if your HVAC system is more than 8–10 years old, run the math on your specific provider’s cap against a realistic replacement quote for your region before assuming a home warranty fully protects you. A $1,500 cap on a $6,000 replacement still leaves you $4,500 short — the warranty helped, but it didn’t solve the problem.

Does Coverage Differ for AC vs. Heating?

Usually not as separate coverage categories — most providers bundle central air and heating under one combined “HVAC” or “systems” coverage line, sometimes with a shared cap (Choice Home Warranty explicitly combines heating and AC under a single $3,000 limit, for example, rather than giving each system its own cap). A smaller number of plans separate them, so check your specific contract rather than assuming either structure.

Does a Home Warranty Cover a Full HVAC Replacement, or Just Repairs?

Both, generally — if a licensed technician determines a system can’t be reasonably repaired, most providers will authorize a replacement instead, up to your plan’s coverage cap. The catch is that a “comparable” replacement unit is what gets installed, not necessarily the same brand or efficiency tier you originally had, and anything above your cap comes out of your pocket.

How to Maximize Your HVAC Coverage

1. Keep maintenance records. Annual HVAC servicing receipts are your best defense against a “lack of maintenance” claim denial.
2. Compare caps, not just price, before choosing a provider — see Best Home Warranty Companies of 2026 (Ranked & Reviewed) for the full breakdown.
3. Ask specifically about Freon/refrigerant coverage if your system is older and uses a phased-out refrigerant type, since replacement parts and refrigerant costs have risen as older refrigerants are phased out.
4. Consider a top-tier plan if your HVAC system is aging — several providers (Old Republic Elite, AHS ShieldPlatinum) include a free annual tune-up, which can also help you avoid maintenance-related claim denials down the road.

Frequently Asked Questions

Does a home warranty cover a full AC replacement? Yes, if a technician determines repair isn’t feasible — but only up to your plan’s coverage cap, which ranges from $1,500 to $6,500+ depending on the provider. Anything above the cap is your responsibility.

Does a home warranty cover HVAC maintenance, like annual tune-ups? Not usually as standard coverage — routine maintenance is generally the homeowner’s responsibility. Some top-tier plans (like AHS ShieldPlatinum or Old Republic Elite) include a free annual tune-up as a plan perk, which is different from ongoing maintenance coverage.

Will a home warranty deny my HVAC claim if I didn’t have it serviced regularly? Possibly. Most providers can request proof of maintenance and may deny a claim tied to a lack of documented servicing — keeping receipts is a simple way to protect yourself.

Does a home warranty cover ductwork? Many plans do, but not all — confirm this specifically, since it’s a common exclusion or add-on-only item depending on the provider.

Which home warranty company has the best HVAC coverage? Based on published coverage caps, Old Republic Home Protection’s $6,500 limit is the highest among major providers with clearly published, verified caps — though it’s only available in about 24–25 states. AFC Home Club and First American report uncapped HVAC coverage by some sources, which would be even stronger if confirmed in writing for your specific plan.

Does a home warranty cover a broken thermostat? Usually yes, as part of standard HVAC system coverage, though smart thermostats with advanced features may have different coverage terms — check your specific contract.

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Related reading: Best Home Warranty Companies of 2026 (Ranked & Reviewed) · Does a Home Warranty Cover Water Heaters? · What’s Not Covered by a Home Warranty? Common Exclusions

Information in this article reflects publicly available coverage data as of mid-2026, compiled across multiple provider reviews on this site. Coverage terms, caps, and exclusions vary by provider, plan tier, and state — always confirm current details directly in your contract before relying on HVAC coverage for a specific repair.