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Hail Damage to HVAC Units: What to Check After a Hailstorm

Last updated October 25, 2026

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The short answer

Start with a Visual Inspection

Begin by examining the exterior of your HVAC unit. Look for dents, dings, or punctures on the metal casing, and check if the protective grille is bent or broken. Hail can also dent the condenser coils, which are the thin metal fins on the sides of the unit.

Pay attention to the fan blades. If they are bent or chipped, the unit may vibrate or make unusual noises when running. Also, check for any loose or disconnected wires, and look for signs of refrigerant oil on the ground or around the unit, which could indicate a leak.

Check the Fins and Coils

The condenser fins are delicate and can easily be flattened by hail. When fins are bent, airflow is restricted, which makes the system work harder and less efficiently. You can often see the damage clearly by looking at the fins from different angles.

If you notice many bent fins, you can carefully straighten them with a fin comb, available at hardware stores. However, if the fins are severely crushed or the coils themselves are punctured, that is a job for a professional. Refrigerant leaks are hazardous and require specialized equipment to fix.

  • Look for dents on the casing and grille
  • Check fan blades for chips or bends
  • Inspect condenser fins for flattening
  • Look for oily spots or refrigerant stains
  • Examine wiring for damage or disconnection
  • Note any unusual noises when the unit runs

Test the System Carefully

After a visual check, you can turn the system back on and listen for odd sounds like rattling, grinding, or clicking. Also, feel the air coming from the vents. If it is not as cool as usual, that could indicate a refrigerant issue or reduced airflow from damaged fins.

Watch the unit while it runs. If you see sparks, smell burning, or notice the circuit breaker trips, turn the system off right away. These are signs of electrical damage that need a professional's attention. Do not attempt to repair electrical components yourself.

If you live in Kirkland, keeping a record of the hail event and any damage you find can be helpful for insurance purposes. Take photos and notes before any repairs are made.

When to Call a Professional

Some hail damage is obvious, but other issues are not visible to the untrained eye. A qualified HVAC professional can perform a thorough inspection, including checking refrigerant pressure, testing electrical connections, and verifying the overall integrity of the system. They have the tools to detect hidden problems.

If you notice any of the following, call a pro: refrigerant leaks, cracked or broken components, electrical issues, or if the unit is not cooling effectively. Also, if the unit was hit by large hail, a professional inspection is wise even if everything looks fine on the surface. This can prevent a complete breakdown later.

A water damage inspection service can also help if the hail caused water intrusion into your home or attic. They can assess any resulting moisture issues.

  • Refrigerant leaks or hissing sounds
  • Bent or broken fan blades
  • Cracked or shattered casing panels
  • Electrical shorts or tripping breakers
  • Reduced cooling performance
  • Visible water stains near the unit

Document the Damage for Insurance

Before you call for repairs, document the damage thoroughly. Take clear photos of every dent, bent fin, and cracked panel. Write down the date and time of the hailstorm, and note any other damage to your property, such as roof or siding issues. This information is useful when you file a claim.

Your insurance company will assess the damage and decide what is covered. Policies vary, and your insurer decides what is covered. Be prepared to provide your documentation and any repair estimates. If you are unsure about your coverage, check your policy or ask your agent.

For immediate water damage concerns, such as a leaky roof or broken window, a water damage inspection can help identify the extent of the problem and prevent mold growth.

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Phones are answered 24/7 for Kirkland and nearby communities.

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Frequently asked questions

Can hail damage cause my HVAC unit to leak water?

Yes, hail can damage the condensate drain line or the pan, causing water to leak. Also, if the unit's casing is punctured, rain can enter and cause internal water damage. Check for puddles around the unit and address any leaks promptly to avoid secondary damage.

Will my homeowner's insurance cover hail damage to my HVAC unit?

Typically, hail damage is covered under homeowner's insurance, but it depends on your specific policy and deductible. Policies vary, and your insurer decides what is covered. Document the damage and contact your insurance company to start a claim. They will guide you through the process.

How long does it take to repair hail-damaged HVAC units?

The repair time depends on the extent of the damage. Minor fin straightening might take an hour, while replacing coils or fan motors can take several hours. If parts need to be ordered, it may take longer. A professional can give you a better timeline after inspecting the unit.

Call Now (425) 406-3256