St Johns, FL
HVAC Pros in St Johns, FL
5 HVAC providers cover St Johns. st-johns County homeowners typically upgrade every 12–18 years in this climate. Duke Energy Florida rebates up to $800 available.
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Quick facts
- AreaSt Johns
- StateFL
- Providers5
- Climate zone2A-Hot-Humid
- Heating degree days1,600
- Recommended systemac focused
Why HVAC matters in St Johns
St Johns sits in IECC climate zone 2A-Hot-Humid with average January temperatures of 55°F and July highs around 82°F. With 2,800 cooling degree days, air conditioning is critical during summer months.
FL (St. Johns County) falls in IECC 2A-Hot-Humid. HDD 1600 / CDD 2800 per NOAA 1991–2020 state averages drive a ac focused HVAC strategy. Climate data is zone-level; consult a contractor for site-specific load calcs.
About St Johns HVAC
5 HVAC providers list active service in St Johns — a small but workable shortlist. Getting three quotes is realistic if you plan a week out. st-johns County pricing tends to track the regional median, with premium brands and efficiency tiers driving the range.
St Johns averages July highs near 82°F and 2,800 cooling degree days, which puts AC compressors under load for 4–6 months a year. Oversized or poorly-sized equipment fails early in this duty cycle. Homeowners in St Johns should expect seasonal pricing swings — spring and fall are the value windows for installs. Duke Energy Florida's Duke Energy FL Heat Pump Rebate currently offers up to $800 toward a qualifying system, which meaningfully shifts the cost-of-ownership math.
Top local providers
Request quotes →- Griffin ServiceTop ratedinstallationrepairinspectionemergency
What customers say “Had my hot water heater flushed. Jimmy let me know he was coming and the company also called to let know he was on his…”
- Whitleys Heating and Air LLCTop rated
What customers say “About a year ago, another HVAC company (that the previous homeowners had a service contract with) sent out a friendly,…”
- installationrepairinspection
What customers say “J is the superhero every homeowner wishes they had on speed dial. He did not just fix our AC; he caught a major error…”
- 365 Solutions AC Repair and PlumbingTop ratedinstallationrepairemergency
What customers say “Dave arrived within the time window promised. He was very courteous and knowledgeable and had my problem fixed quickly.…”
What customers say “Cold in my house. My HVAC was feeling it too (see popsicle pic). After multiple visits troubleshooting, Matt and Chris…”
What St Johns homeowners say
“Dave arrived within the time window promised. He was very courteous and knowledgeable and had my problem fixed quickly. I particularly appreciated him explaining the problem, what he found and how he fixed it. Thanks to Dave and 365 for quickly gett…”
“About a year ago, another HVAC company (that the previous homeowners had a service contract with) sent out a friendly, apparently knowlegeable tech who determined that we should replace one of our A/C units, and perhaps both, as the price was better…”
“J is the superhero every homeowner wishes they had on speed dial. He did not just fix our AC; he caught a major error that another technician, who is no longer with the company, completely missed. I am convinced J has x-ray vision, because he spotted…”
Local pricing snapshot
Repairs typically run $150–$600. Full system replacements range from $4k for a basic furnace to $12k+ for a premium heat pump. Prices vary by system type, efficiency, and whether ductwork modifications are needed.
Available rebates in St Johns
- Duke Energy Florida: Duke Energy FL Heat Pump Rebate — $200–$800 for heat pump
- Duke Energy Florida: Duke Energy FL Smart Thermostat Rebate — $75–$125 for thermostat
Federal 25C tax-credit savings are not counted for current projects because IRS guidance says the credit expired for property placed in service after December 31, 2025. See full cost breakdown →
Nearby service areas
Florida hub →Explore more Florida markets from the state hub.
Popular comparisons in St Johns
- Griffin Service vs Whitleys Heating and Air LLC4.8★ vs 5.0★
- Griffin Service vs Chills On Wheels Heating & Air Contractors, Inc.4.8★ vs 4.9★
- Whitleys Heating and Air LLC vs Chills On Wheels Heating & Air Contractors, Inc.5.0★ vs 4.9★
- Whitleys Heating and Air LLC vs 365 Solutions AC Repair and Plumbing5.0★ vs 5.0★
- Chills On Wheels Heating & Air Contractors, Inc. vs 365 Solutions AC Repair and Plumbing4.9★ vs 5.0★
- Chills On Wheels Heating & Air Contractors, Inc. vs St. Johns Heating and Air Conditioning4.9★ vs 5.0★
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Frequently Asked Questions
How important is air conditioning in St Johns?
Very. With 2800 cooling degree days and summer highs regularly exceeding 82°F, AC is essential in St Johns. Central AC or a heat pump (which provides both heating and cooling) is strongly recommended. Budget $3,500-$7,000 for a quality cooling system installation.
What HVAC rebates are available in St Johns?
St Johns homeowners can stack multiple incentives: Duke Energy Florida offers up to $800 for heat pump installations. Add the federal 25C tax credit ($2,000), and total savings can reach $2,800+. Ask your installer to itemize which rebates apply to your specific project.
How much does HVAC work cost in St Johns?
In St Johns, typical costs range from $150-$600 for repairs, $4,000-$8,000 for a standard furnace or AC replacement, and $6,000-$14,000 for a heat pump system. After available rebates, heat pump installations often net out to $4,000-$9,000. Get 2-3 written quotes to compare — prices vary significantly between contractors.
How do I verify a HVAC contractor is licensed in Florida?
Florida HVAC contractors need a Class A (unlimited) or Class B (under 25 tons cooling / 500K BTU heating) Air Conditioning license from the Florida DBPR Construction Industry Licensing Board, or a Mechanical Contractor license for broader work. Verify at myfloridalicense.com — confirm an active status, the $10,000 performance bond, and current general-liability and workers' comp coverage. County-level registered licenses also exist but are not valid statewide.
Licensing verified weekly. Reviews refreshed within the last 30 days.
Licensing data: Florida Department of Business and Professional Regulation (DBPR), Construction Industry Licensing Board · Company data: verified business records + Google Business profile
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