Serving Bailey's Crossroads and Fairfax County
The federal minimum efficiency standards for new AC equipment changed in 2023, and they vary by region. Virginia falls in the southern efficiency region, meaning new AC installations in Fairfax County must meet the 15 SEER2 minimum — not the 14 SEER2 that applies in northern states. Higher-efficiency equipment costs more upfront but reduces operating costs over the system's life. In Bailey's Crossroads's climate with its extended cooling season, the payback on higher SEER2 equipment comes faster than it would in a market with a shorter AC season.
Fairfax County's mixed-humid climate means both heating and cooling systems are load-bearing. An AC that underperforms in August and a furnace that struggles in January aren't unrelated problems — they're the result of the same deferred maintenance pattern that costs Bailey's Crossroads homeowners more over time.
The combination of 1,630 annual cooling degree days and 2,790 heating degree days means Bailey's Crossroads homeowners depend on both systems across the year. Fairfax County's housing stock, with a median construction year around 1978, contains a large inventory of equipment due for evaluation or replacement.