Jacksonville, FL
Call Mon–Sat, 8 AM–8 PM

904-467-1100

Monday-Saturday
8:00 am - 8:00 pm

Duval County service area

HVAC service in Jacksonville
One city on both banks of the St. Johns

Langston’s works out of a shop at 7202 Electra Dr S on the Westside and covers the whole consolidated city. Mr Gary, the licensed owner, does the diagnosis himself and puts the price in writing before any work.

★ 5.036 Google reviews
CMC1251311State-licensed mechanical contractor
EPA 608Universal certified
Written quotesBefore any work starts

Quick facts

Jacksonville at a glance

CountyDuval. The city and county governments merged in 1968.
Our shop7202 Electra Dr S, Westside, 32210
Typical housingEarly-1900s bungalows, postwar ranches and brand-new subdivisions
Local wear factorLong, humid summers, with most of the year’s rain from May to September

Local conditions

What Jacksonville homes put their AC through

Jacksonville covers more land than any other city in the contiguous United States, and since the 1968 consolidation nearly all of Duval County sits inside it. A service call here can mean a frame bungalow near downtown, a 1950s block ranch on the Westside, or a house still under construction on the Northside.

The climate is the common thread. Summers run long and humid, and roughly 52 inches of rain fall in a typical year, most of it between May and September. An air conditioner in this city spends as much effort pulling water out of the air as it does lowering the temperature, so a system with weak airflow or the wrong size leaves rooms sticky even when the thermostat looks right.

House age matters too. Central air did not become standard in new American homes until the late 1960s, so much of the older housing stock had ductwork added after the fact, routed wherever it would fit. Those retrofit duct systems are often where comfort complaints start.

In a customer’s words

What people say about Mr Gary

“Mr Gary is a one of a kind gem if you need air conditioning service or repairs he’s the guy to go to. Mr Gary is very thorough and persistent in locating the issue and is upfront and honest about his findings.” — Susan Hoyle, Google review

Langston’s holds a 5.0 rating from 36 Google reviews. Read more on the reviews page.

How a visit runs

Readings first, then a written quote

Every call starts with measurements shown to you on site, so the recommendation rests on numbers instead of a hunch. For a home, the $129 diagnostic disappears from the bill when you approve a recommended repair costing more than $250.

  • Refrigerant pressures, superheat and subcooling
  • Electrical load on the compressor and both fans
  • Static pressure across the duct system
  • A written quote before any work begins

Straight answers

Common questions

Do you cover all of Jacksonville?

Yes. Langston’s serves all of Duval County, including the Beaches and Baldwin, plus Clay, St. Johns, Nassau, Baker, Bradford, Putnam and Flagler counties.

What are your hours?

Langston’s is open 8 AM to 8 PM, Monday through Saturday, by phone at (904) 467-1100 or through online booking.

Who actually does the work?

Mr Gary, the owner and the Florida-certified mechanical contractor on the license (CMC1251311), diagnoses the problem and does the repair.

Do you offer any discounts?

Residential customers who are military, first responders or seniors get 10% off.

Get it measured, get it fixed, get a written price first.

Langston’s Heating & Air Conditioning · Licensed CMC1251311 · Mon–Sat 8 AM–8 PM

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