Rates increased to the highest level in five months, pushing down home-purchase applications.
About one-fifth of U.S. homeowners have a mortgage with less than 3% interest.
Home purchase applications fell by the most since mid-February.
Households headed by people 18 to 39 saw the smallest gains in dollar terms.
“The goal is to make sure we stay on the path,” he said.
Solid labor-market data may hide the pain of those in recent cuts in sectors like housing, technology and human resources.
The increase was a respite from a two-year downturn caused by higher borrowing costs.
Seniors' labor participation rate is expected to rise as the rates of most other age groups stall or decline.
Economists say the strike might raise the inflation rate.
Private equity firms are now rolling up household services businesses.