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Video · AC Replacement

When to Replace an AC Unit: One Homeowner Finally Said Yes

When to replace an AC unit: once it's past about 12 to 15 years and repairs keep coming. Here the homeowner finally said yes, and a tech is on her floor cutting the sheet metal that joins new to old.

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Licensed and insuredVirginia Class A contractor #2705192276

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Our own HVAC installersA dedicated heating and cooling team, separate from our plumbers

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What you’re seeing in this video

The homeowner, in a grey sweatshirt and black vest, turns to the camera and asks how you replace your AC. The answer cuts to the floor, where a tech in a black beanie and hoodie works a sheet of metal with red tin snips.

He's building a transition, a custom-cut sheet metal piece that connects the new indoor equipment to ductwork sized for the old one. New equipment rarely matches the old opening exactly, so this part gets measured and made on site.

Job footageSwiftPro
Topic
AC Replacement
Length
0:20
Posted
July 29, 2026
Shot by
The SwiftPro crew, Northern Virginia

Why it matters in your house

  • Holding off on an old AC usually means it picks the date for you, often in July when installers are booked out. Deciding in spring or fall gives you the choice.
  • A shop-made transition with sealed seams is a sign of a careful install. Gaps, or flex jammed into a mismatched opening, leak air you paid to cool.
  • If you've been patching the same unit for a few summers, ask for a repair-versus-replace comparison with real numbers. A good tech will answer it straight.

Is it better to replace an AC before it breaks?

Usually, yes. Replacing on your own schedule means you get to compare options and pick an install date, instead of taking whatever's open during a heat wave. If your unit is past 12 to 15 years and needed a repair last summer, getting a price now just gives you options, and you can still wait if the numbers say to.

Want it done at your place? See AC Replacement at SwiftPro or call (703) 997-9757.

More videos from the SwiftPro crew

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See all 234 SwiftPro videos

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SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
Virginia Class A contractor license #2705192276

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