The front rooms stay comfortable while the back bedrooms run warm all afternoon, even with a newer outdoor unit.
Why it happens here: Many homes around downtown Summerdale date from the early 1900s, long before central air. Ducts were added later through hot attics and crawlspaces, often with small returns and leaky joints, and a year-round household keeps the system running hard from April to October.
What the contractor does: A contractor tests airflow room by room before quoting a repair or an AC replacement, so you fix the ducts before paying for a bigger unit.