Jacksonville • Keystone Heights • Middleburg • Orange Park

Call Now: (904) 231-8873 | Text Steve Open 24/7

Jacksonville Florida Ac Repair And Hvac Services

A/C Repair Company in Keystone Heights Reliable Air Conditioning Service Across Northeast Florida

Licensed HVAC repair, maintenance, and installation for Jacksonville, Keystone Heights, Middleburg, Orange Park, and nearby Northeast Florida communities.

Steve Kiener

Owner & Licensed HVAC Contractor

License #CAC1824922

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Request HVAC Service

Need AC Repair, Maintenance, or a New System Estimate?

Licensed HVAC Contractor CAC1824922

Request service online for AC repair, heating repair, HVAC maintenance, emergency service, or a free estimate for system replacement and installation.

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    Free Estimates
    System replacement and new installation

    Free Second Opinions
    Available for repairs over $1,000

    24/7 Service
    Emergency HVAC service available

    Our HVAC Services

    Air Conditioning, Heating, Maintenance,
    and Installation Services

    Kiener’s Heating & Air Conditioning provides local HVAC service for homeowners in Jacksonville, Keystone Heights, Middleburg, Orange Park, and nearby Northeast Florida communities. Steve can repair and service all makes and models, including Carrier, Trane, Bryant, Lennox, Goodman, Rheem, Mitsubishi, and more, while giving homeowners clear guidance instead of rushed recommendations.

    Ac Repair Services

    AC Repair

    Fast troubleshooting for cooling problems, weak airflow, warm air, short cycling, frozen coils, electrical issues, and systems that stop working when Florida heat is at its worst.

    Learn More about AC Repair
    Hvac Maintenance Services

    HVAC Maintenance

    Preventive maintenance helps protect system performance, reduce breakdown risk, improve airflow, and create opportunities for maintenance agreements.

    Learn More about HVAC Maintenance
    Hvac Installation Service

    System Replacement

    Free estimates are available for system replacement and new HVAC installation, including properly sized equipment for your home and comfort needs.

    Learn More about System Replacement
    Heating Repair Service

    Heating Repair

    Heating and furnace repair services are available when cooler weather arrives and your system needs safe, reliable service.

    Learn More about Heating Repair
    Dehumidifiers Service

    Dehumidifiers

    Humidity control can make a major difference in Florida homes, especially when indoor comfort feels sticky even while the AC is running.

    Learn More about Dehumidifiers
    Reliable Heating And Air Conditioning

    Experienced HVAC Service

    Reliable Heating and Air Conditioning Help From a Licensed HVAC Contractor

    Steve Kiener brings more than a decade of HVAC experience to every service call, with hands-on knowledge in maintenance, service, installation, and licensed contracting.

    His full-system approach helps Kiener’s Heating & Air Conditioning provide clear answers for AC repair, HVAC service, second opinions, and comfort concerns. If your system stops cooling, struggles to keep up, or you received a high repair quote, Steve can inspect the equipment and review practical options for all makes and models.

    Full-System Experience

    Experience across maintenance, service, installation, diagnostics, and troubleshooting

    All Makes and Models

    Service for Carrier, Trane, Bryant, Lennox, Goodman, Rheem, and more brands

    Emergency Air Conditioning Repair In Northeast Florida

    24/7 HVAC Service

    Need Emergency AC Repair in Northeast Florida?

    When your AC stops working, indoor temperatures can climb quickly. Kiener’s Heating & Air Conditioning provides 24/7 HVAC service for urgent cooling problems and can repair and service all makes and models. Steve looks at the full system, explains the likely cause, and helps homeowners understand whether repair, maintenance, or replacement should be considered.

    Simple Service Process

    How Kiener’s Makes HVAC Service Easier

    From the first request to the final recommendation, Kiener’s keeps HVAC service clear, practical, and easy to understand. You get a straightforward process, honest communication, and guidance that helps you make the right decision for your home.

    01

    Request Service

    Call or submit the form with your service address, contact information, and the HVAC issue you are dealing with.

    02

    System Diagnosis

    The system is checked for airflow restrictions, electrical concerns, thermostat problems, refrigerant issues, or failing parts.

    03

    Clear Options

    You receive straightforward repair, maintenance, or replacement guidance without pressure or confusing explanations.

    04

    Comfort Restored

    The goal is reliable comfort, better performance, and a system ready for Northeast Florida heat, humidity, and changing weather.

    Maintenance Agreements

    Routine HVAC Maintenance Helps Prevent Bigger Problems

    Routine HVAC maintenance gives homeowners a better understanding of how their system is performing before peak cooling or heating season. Regular service can help keep equipment cleaner, identify wear early, and reduce the chance of avoidable comfort problems.

    AC maintenance before heavy summer use

    Heating maintenance before cooler weather

    Better long-term system awareness

    Helpful recommendations before costly failure

    Learn About Maintenance
    Routine Hvac Maintenance In Northeast Florida

    Free Second Opinions

    Repairs Over $1,000

    When a repair quote feels high, homeowners can request a free second opinion before making a major decision.

    Heating And Air Conditioning Services In Jacksonville Florida

    Equipment Brands

    Major HVAC Manufacturers Serviced

    Kiener’s Heating & Air Conditioning can repair and service all makes and models, including Carrier, Trane, Bryant, Lennox, Rheem, Goodman, Mitsubishi, Daikin, and other major HVAC equipment brands.

    Trane logo
    Daikin logo
    Lennox logo
    Carrier logo
    Bryant logo
    Rheem logo
    Goodman logo
    Mitsubishi logo

    Why Choose Us

    Local HVAC Service Focused on Clear Answers and Dependable Comfort

    Kiener’s Heating & Air Conditioning is built around clear communication, full-system troubleshooting, and practical HVAC recommendations. Steve’s experience across service, maintenance, installation, and licensed contracting helps homeowners get answers from someone who understands more than one part of the job.

    Locally Owned and Operated

    Local HVAC service from Steve Kiener, a licensed contractor with experience across maintenance, service, installation, diagnostics, and customer communication.

    Free Installation Estimates

    Homeowners can request free estimates for system replacement and new HVAC installation before making a major decision.

    Repair Second Opinions

    Free second opinions are available for repairs over $1,000 so homeowners can better understand the issue, the options, and whether the quote makes sense.

    24/7 HVAC Service

    Emergency HVAC service is available for urgent heating and cooling issues that need quick attention.

    Kiener's Heating & Air Conditioning provides heating and cooling service for homeowners who need help with repairs, maintenance, replacement, indoor comfort concerns, and urgent HVAC problems. Our team helps with AC repair, heating repair, HVAC maintenance, system replacement, indoor air quality, dehumidifiers, and ductless mini split systems.

    Many homeowners contact us when their AC is not cooling, their system is running too often, their utility bills have changed, or they want a clearer opinion before spending money on a major HVAC repair. Whether you are looking for an HVAC company in Keystone Heights, AC service in Jacksonville, or heating and cooling help along the SR 21 corridor, Kiener's Heating & Air Conditioning can inspect the issue and explain the next step in plain language.

    You should call for AC repair if your air conditioner is blowing warm air, short cycling, freezing up, leaking water, making new noises, tripping the breaker, or struggling to keep your home comfortable. These problems can come from airflow restrictions, thermostat issues, electrical concerns, drainage problems, refrigerant-related issues, or worn parts inside the system.

    For homeowners searching for AC service in Keystone Heights FL, air conditioning repair in Keystone Heights FL, or AC repair near Jacksonville, Middleburg, Orange Park, Riverside, Lakeside, San Marco, or Avondale, Kiener's Heating & Air Conditioning can help diagnose the issue and talk through repair options before the problem gets worse. To request service, call (904) 231-8873 or schedule online.

    Yes. Kiener's Heating & Air Conditioning offers 24/7 emergency HVAC service for urgent heating and cooling problems. If your AC stops working during hot Northeast Florida weather, your system will not turn on, or your home becomes uncomfortable because of an HVAC issue, you can call (904) 231-8873 for help.

    Emergency HVAC service is especially important when a cooling problem affects comfort, safety, or daily routines. Our team can help with urgent AC repair, heating repair, electrical HVAC concerns, drainage issues, and system problems that need attention before a normal appointment window.

    Yes. Kiener's Heating & Air Conditioning provides free estimates for HVAC system replacement and new system installation. A free estimate can help if your current unit is older, unreliable, expensive to repair, or no longer keeping up with the heat and humidity in Northeast Florida.

    During the estimate process, the goal is to help you understand your options without rushing the decision. Homeowners often ask about replacement after repeated AC repairs, uneven cooling, rising energy bills, poor airflow, or a repair quote that makes a new system worth considering. You can call (904) 231-8873 or schedule online to get started.

    Yes. Kiener's Heating & Air Conditioning offers free second opinions for HVAC repair quotes over $1,000. This can be helpful if another company recommended an expensive repair, suggested replacing the system, or gave you an explanation that did not feel clear.

    A second opinion can help you understand whether the issue is urgent, whether the repair is reasonable, and whether system replacement should be part of the conversation. If you are comparing options for AC repair, HVAC repair, or air conditioning service in Keystone Heights, Jacksonville, Orange Park, Middleburg, Riverside, Lakeside, San Marco, Avondale, or nearby Northeast Florida areas, Kiener's Heating & Air Conditioning can review the situation and explain what makes the most sense.

    Kiener's Heating & Air Conditioning serves homeowners in Keystone Heights, Jacksonville, Middleburg, Orange Park, and nearby Northeast Florida communities. Service is also focused around the SR 21 corridor, where many homeowners need reliable AC repair, HVAC maintenance, heating repair, and system replacement support.

    We also help homeowners in and around Riverside, Lakeside, San Marco, Avondale, and surrounding areas when scheduling allows. If you are searching for an HVAC company in Keystone Heights FL, AC service in Orange Park FL, AC repair in Middleburg FL, or air conditioning service in Jacksonville FL, contact Kiener's Heating & Air Conditioning to see how we can help with your home’s heating and cooling needs.

    HVAC maintenance is important in Northeast Florida because air conditioners work through long stretches of heat, humidity, storms, pollen, and heavy seasonal use. Routine maintenance helps keep the system cleaner, gives a technician a chance to catch wear earlier, and can help reduce surprise comfort problems during the hottest parts of the year.

    Maintenance is also useful for homeowners who want fewer unexpected AC issues and a better understanding of their system’s condition. If you need AC maintenance in Keystone Heights, Jacksonville, Orange Park, Middleburg, Riverside, Lakeside, San Marco, Avondale, or nearby areas, Kiener's Heating & Air Conditioning can inspect key components, check airflow, review drainage concerns, and let you know if anything needs attention.

    Yes. Kiener's Heating & Air Conditioning can repair and service many major HVAC brands and system types. If your air conditioner, heat pump, furnace, mini split, or indoor comfort equipment is not working correctly, our team can inspect the system, explain the issue, and help you decide whether repair, maintenance, or replacement is the better path.

    Brand matters less than getting a clear diagnosis from an HVAC company that understands local homes and Northeast Florida weather. Whether you need AC repair in Jacksonville FL, HVAC service in Keystone Heights FL, or air conditioning maintenance in Orange Park, Middleburg, Riverside, Lakeside, San Marco, or Avondale, you can call (904) 231-8873 or schedule online.

    Service Areas

    HVAC Service Along SR 21, Jacksonville, Keystone Heights, and Nearby Communities

    Kiener’s Heating & Air Conditioning provides local HVAC service across Jacksonville, Keystone Heights, Middleburg, Orange Park, Lakeside, San Marco, Miramar, Springfield, Avondale, Riverside, Ortega, Murray Hill, and nearby Northeast Florida communities.

    Jacksonville Keystone Heights Middleburg Orange Park Lakeside Avondale Riverside San Marco

    Ready to Schedule?

    Need AC Repair or HVAC Maintenance?

    Request service online or call now to speak with Kiener’s Heating & Air Conditioning about AC repair, HVAC maintenance, all makes and models service, installation guidance, or a second opinion.

    Local HVAC Company

    AC Repair and HVAC Service That Comes to You

    When your home needs HVAC help, you want someone local who understands Florida heat, humidity, older systems, and the way equipment is used in Northeast Florida. Kiener’s Heating & Air Conditioning provides mobile HVAC service for homeowners in Jacksonville, Keystone Heights, Middleburg, Orange Park, and nearby communities.

    From quick AC diagnostics and drain line issues to maintenance visits, second opinions, and system replacement estimates, Steve arrives prepared to inspect the full system and explain what makes sense next. Kiener’s can repair and service all makes and models, including major HVAC brands found in homes throughout the area.

    Customer Reviews

    What Local Homeowners Say About Kiener’s Heating & Air Conditioning

    Read recent customer feedback about AC repair, HVAC service, maintenance, system replacement guidance, and the way Steve helps homeowners understand their options.

    When our AC stopped working on the weekend, Kiener's was the only company that called back with a real person, not an AI secretary. Mr Steve was very professional, got to us ASAP, &...

    Nathan G

    Steve Kiener did a great job with the maintenance today. He was very thorough and explained everything going on with our system.

    Kathy C

    Steve Kiener was very informative and explained everything very well. Will definitely keep this company in mind when we look to replace our AC unit.

    Rosalba W

    Steve Kiener took his time to complete the work, answered all my questions and went above and beyond.

    Linda P

    Steve Kiener did a great job for me today. He was very professional and his attention to detail was wonderful.

    David W

    Steve Kiener came out today and serviced our air conditioner. He very polite and took his time explaining everything to us. I would highly recommend. Thank you.

    Kevin S

    Our technician Steve Kiener did a wonderful and thorough inspection of our unit for our 6 month checkup. He took his time to clean the unit, inspect all wiring, etc.

    Elizabeth L

    Steve Kiener is an outstanding guy. He’s very personable and knowledgeable.

    Kathy J

    Steve Kiener is a very nice and helpful person.

    Iva K

    Steve Kiener explained everything very well today during the HVAC maintenance.

    Lisa D

    Steve Kiener did a great and professional job on my AC maintenance and advised me of my many options for upgrade as well. Thanks Steve!

    Debra J

    Steve Kiener was very thorough, friendly and helpful.

    Nancy S