Top 7 HVAC companies in Duval, Florida
Bayesian-adjusted ratings place these seven companies highest among those listed for Duval County. Numbers come from public directories collected in August 2026.

The top two firms share identical raw ratings and 24/7 signals but separate on review volume. Installed costs run lower than national averages while extreme humidity makes latent-load sizing the critical specification.
Duval County sits in climate zone 2A with 3,600 cooling degree days against only 500 heating degree days. Equipment choice therefore centers on dehumidification performance rather than heating capacity. Public listings supply the data for the ranking that follows. Review volume determines how far each raw score is adjusted toward the national mean of 4.764. The resulting shortlist identifies seven firms that surface at the top of directory searches for the county.
The shortlist
Measday's Heating & Air
Measday's Heating & Air operates from 15740 Dusty Rd, Jacksonville, FL 32234 and lists as a general contractor with published 24/7 availability. Its phone number is (904) 891-3208. The firm recorded 75 reviews at a raw rating of 5. The Bayesian adjustment pulled that score to 4.993 because the review count remains modest relative to the national mean. A public website supplies one of the tie-breaker signals. These numbers cannot reveal whether the firm maintains a dedicated service fleet or subcontracts after-hours work.
Einstein Heating & Air Conditioning
Einstein Heating & Air Conditioning is located at 11425 McCormick Rd Ste 115R, Jacksonville, FL 32225. It also appears as a general contractor with 24/7 coverage and can be reached at (904) 999-9990. Seventy-one reviews produced a raw 5 that adjusted downward to 4.99. The modest review total keeps the score close to the mean despite the perfect raw rating. A listed website adds another ranking signal. The data set offers no information on parts inventory or typical wait times for non-emergency calls.
Utmost Air Conditioning and Heating Repair
Utmost Air Conditioning and Heating Repair sits at 1454 Classic Oak Rd W, Jacksonville, FL 32225. Its listing category is Services and it does not advertise 24/7 hours. The contact number is (904) 294-3885. Fifty-five reviews at a raw 5 adjusted to 4.957. The larger review count moves the score farther from the national mean than the two leaders. A public website is the sole tie-breaker listed. The figures give no indication of how the firm handles peak-summer scheduling.
FrostMasters AC Repair Jacksonville
FrostMasters AC Repair Jacksonville lists its address as 800 Forest St Suite 288, Jacksonville, FL 32204. It operates under a Services category yet publishes 24/7 availability and answers at (904) 867-7895. Fifteen reviews produced a raw 5 that adjusted to 4.903. The small sample size leaves the adjusted score closer to the mean than firms with more reviews. A website and 24/7 listing both count as signals. Review depth remains too low to assess consistency across seasons.
ECOOLING LLC
ECOOLING LLC is based at 8527 Alton Ave, Jacksonville, FL 32211 and appears as a general contractor with 24/7 availability. Reach them at (347) 281-2331. Ten reviews at a raw 5 adjusted to 4.883. Limited review volume keeps the score nearer the national mean. Both a website and 24/7 status serve as tie-breakers. The numbers supply no detail on coastal-coil options or typical job duration.
Jacksonville Air Conditioning & Heating
Jacksonville Air Conditioning & Heating is at 9401 Atlantic Blvd, Jacksonville, FL 32225. It lists as a general contractor without 24/7 coverage and can be called at (904) 253-8848. Thirty-two reviews at 4.9 produced an adjusted score of 4.834 that sits slightly above the raw rating because the score was pulled upward toward the mean. No additional ranking signals appear. The review count is still small enough that year-to-year variation cannot be judged from these data alone.
A Comfortable Environment Inc.
A Comfortable Environment Inc. operates from 2071 Emerson St Ste 3, Jacksonville, FL 32207. It lists as a general contractor without 24/7 hours and answers at (904) 906-5705. Forty-four reviews at 4.8 adjusted upward to 4.825. The adjustment moves the score closer to the national mean because the raw rating sits below that mean. A public website is the only listed signal. The sample size leaves open questions about performance on complex latent-load jobs.
How to choose
License class, equipment sizing approach, and documented hurricane tie-downs matter more than marketing claims. Verify any contractor through the DBPR online lookup before signing a contract. Ask specifically how the proposed unit will manage the county's extreme latent load rather than simply matching sensible capacity. Request references from recent installations performed during peak summer months.
Installed costs
Two public sources report different installed prices for a full system in Duval County. One source lists a typical cost of $8,800 with a range from $7,900 to $9,700. A separate 2025 invoice compilation shows an average of $16,536 and an upper quartile of $23,174. Labor is stated at $95 per hour. Permit fees range from $150 to $500. The two sources therefore disagree on the central tendency of total project cost. Both figures are lower than national averages for comparable equipment.
Local climate demands
Duval County falls in IECC zone 2A with extreme humidity as the dominant design driver. Cooling degree days reach 3,600 while heating degree days total only 500, producing a strongly cooling-dominant load profile. Summer design temperature is 91 °F and winter design is 50 °F. Equipment selection must prioritize latent capacity and dehumidification performance; oversizing remains the most common failure mode because it short-cycles the unit and leaves humidity uncontrolled. Heat pumps are well suited, with electric strips adequate for backup.
Licensing and permits
The Florida Construction Industry Licensing Board under the Department of Business and Professional Regulation issues CAC and CBC licenses at the state level. These classes authorize statewide air-conditioning work. Registered licenses are limited to local competency only. Insurance and bond minimums are not specified on the board's public pages. Permits for residential HVAC replacements are issued by the local jurisdiction, either the City of Jacksonville or Duval County building department, not by the state.
Available incentives
Florida's Home Energy Rebates program is approved but delayed, with a planned $8,000 heat-pump rebate. Utility programs through JEA and others offer $150 to $500, yet contractor networks are required. No residential federal HVAC tax credit exists for 2026. These modest incentives do not override the need to confirm proper license class, coastal corrosion protection, and latent-load sizing when selecting an installer.
Public data and the published ranking formula produced this shortlist. Actual workmanship and current capacity must be verified directly with each firm.
Advantages and drawbacks
- Four of seven firms publish 24/7 availability
- Majority hold general-contractor listings rather than services only
- Statewide CAC/CBC licenses allow work across Florida jurisdictions
- Only one firm carries more than 75 reviews
- No firm lists both specialist category and 24/7 availability together
- Ratepayer rebates remain weak compared with other states
Questions readers ask
Who are the top 7 HVAC companies in Duval, Florida?
Measday's Heating & Air ranks first, followed by Einstein Heating & Air Conditioning, Utmost Air Conditioning and Heating Repair, FrostMasters AC Repair Jacksonville, ECOOLING LLC, Jacksonville Air Conditioning & Heating, and A Comfortable Environment Inc.
How much does HVAC repair or installation cost in Duval, Florida?
Public listings show a typical full-system install at $8,800 with a range of $7,900 to $9,700. One 2025 invoice set reports an average of $16,536 and upper quartile of $23,174. Labor runs $95 per hour and permits cost $150 to $500.
What should you look for when hiring an HVAC contractor in Duval, Florida?
Check the firm's CAC or CBC license class through the DBPR lookup, confirm hurricane tie-down details for the condenser, and verify that the equipment selection addresses latent load rather than sensible capacity alone.
Are HVAC companies in Duval, Florida licensed and insured?
Florida issues CAC and CBC licenses statewide through the Construction Industry Licensing Board. Insurance requirements are not detailed on the board's public pages. Permits for residential changeouts are issued locally by the City of Jacksonville or Duval County.
How fast can you get an HVAC technician in Duval, Florida?
Four of the seven listed firms publish 24/7 availability, which indicates they accept after-hours calls. Actual response time still depends on current workload and the specific service requested.
Do you need a permit to replace a furnace or air conditioner in Duval, Florida?
Yes. Permits for HVAC replacements are required by the local jurisdiction, either the City of Jacksonville or Duval County building department, even though the contractor license itself is issued at the state level.
Sources
- AHRI Directory of Certified Product Performance ↗ AHRI
- ENERGY STAR Certified Heating and Cooling Equipment ↗ US EPA
- Appliance and Equipment Standards Program ↗ US Department of Energy
- Occupational Employment and Wages: HVAC Mechanics and Installers ↗ US Bureau of Labor Statistics
- Florida Construction Industry Licensing Board (CILB) — Department of Business and Professional Regulation (DBPR) ↗ Florida
- Duval County, Florida data profile ↗ US Census Bureau


