Why Northeast Florida homeowners call Langston’s
You get the owner
Not a dispatcher, not a rotating crew. The person who diagnoses it is the person accountable for it.
Price before the work
Flat-rate repair pricing approved by you before a single part comes off the truck.
Licensed & insured in Florida
Florida Certified Mechanical Contractor CMC1251311, EPA 608 Universal certified, insured on every job.
Local, across 8 counties
Jacksonville-based, covering eight Northeast Florida counties — not a franchise routing your call out of state.
01
Cooling
Ten months of the year, this is the system holding your house together. It gets treated accordingly.
AC Repair
Warm air, short cycling, water on the floor — diagnosed and priced before any wrench turns.
See what is includedAC Installation & Replacement
Load-calculated sizing, a written quote with the model numbers on it, and an install that actually gets commissioned.
See what is includedDuctless Mini-Splits
Garages, additions, Florida rooms, and that one bedroom that has never been comfortable.
See what is included02
Heating
Equipment that sits idle almost all year and then gets asked to run flat out. That is exactly why it fails on the first cold night.
03
Air Quality
In Northeast Florida, how a house feels is a humidity question far more often than a temperature one.
04
Refrigeration
Light commercial refrigeration serviced by the same person, under the same license, with no subcontractor in the middle.
05
Plans & Portfolios
Scheduled service for homeowners who would rather not meet me in an emergency, and for managers running multiple doors.
Service area
Eight counties. One person accountable in all of them.
Coverage runs across Duval, Clay, St. Johns, Nassau, Baker, Bradford, Putnam, Flagler. Response times are stated honestly by market — same-day where it is realistic, scheduled where it is not. You will never be told a window that cannot be kept.
Jacksonville
Duval County
Jacksonville is the largest city by land area in the lower 48, which is exactly why 'we serve Jacksonville' means little on its own. This is the home market, and the neighborhood pages below go deeper.
View Jacksonville pageWestside
Duval County
The Westside is home turf, which puts most addresses here inside a short drive and makes same-day calls realistic rather than aspirational.
View Westside pageOrange Park
Clay County
Orange Park is close enough for same-day work and old enough that whole neighborhoods are reaching end of life at the same time.
View Orange Park pageSt. Augustine
St. Johns County
St. Augustine runs from historic-district homes with almost no room to work to new construction out west. Both get the same diagnostic standard.
View St. Augustine pageFernandina Beach
Nassau County
Fernandina Beach combines a historic downtown with island salt exposure — the two hardest conditions for HVAC equipment, in one place.
View Fernandina Beach pagePalm Coast
Flagler County
Palm Coast is scheduled work rather than drop-everything work — you get a real appointment window instead of a promise nobody can keep.
View Palm Coast page