Postal Annex Kingwood Expanded Hours for the Holidays!Postal Annex Kingwood Expanded Hours for the Holidays! Postal Annex Kingwood is expanding their hours for the holidays to help the community with all their postal, packaging, pick-up and delivery needs. Their extended hours begin on Monday, December 5th. Monday – Friday from 8am-7pm, Saturdays from 9pm-5pm and Sundays from 12pm-4pm. They will resume regular hours on Friday, December 23rd. Shop and send local. They are conveniently located 2261 Northpark Dr, Kingwood, TX 77339. Fun Fact – They are Kingwood.com Sponsors – You can check out their services at www.Kingwood.com/Pos talAnnexKingwood