The original AC at this WaterColor home was installed when the neighborhood was new — a 22-year-old standard-efficiency split system that had been patched together with three capacitor replacements, a coil replacement, and one refrigerant top-off too many. The compressor was on borrowed time and the homeowner was tired of the seasonal panic.
We ran a fresh Manual J load calculation before quoting anything. The original system had been oversized by roughly a ton, which explained the short-cycling, the high humidity readings the homeowner had been fighting, and the uneven temperatures between the upstairs guest suite and the main living level. A right-sized, variable-speed system was going to do more than save energy — it was going to fix comfort problems the homeowner had assumed were just part of living in a 20-year-old house.
The install took two days. We replaced the air handler, condenser, and line set, sealed and re-insulated the supply trunk in the conditioned attic where original construction had let it deteriorate, and re-balanced the registers. The new system runs at variable capacity matched to actual load, which means longer, gentler runtimes and dramatically better dehumidification — critical on the coast.
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We handled the equipment documentation alongside the install — paperwork is part of the job, not an afterthought. If your residential AC replacement is in the 18- to 25-year window, compare high-efficiency options on their own merits: the former federal Section 25C credit is not available for equipment placed in service after December 31, 2025.