Call 24/7 for emergency service 888.333.8888

Greenwood - HVAC Technician

Your local One Hour Heating & Air Conditioning has been serving the The Lakelands & surrounding area since 1986. We promise prompt and professional service to all of our customers. "Always on time, or you don’t pay a dime."™ We look forward to solving all your heating and air conditioning repair, installation and service needs. Call us now to schedule an appointment.
1121 Reynolds Avenue Greenwood, South Carolina 29649 License Number: M 106587
Available 24/7

    John and Dianne Collins are the proud owners of Carolina Air's One Hour Heating & Air Conditioning® offering professional services in a timely manner for homeowners in Greenwood and the surounding Lakelands area.
  • Awards and Affiliations

    • One Hour Heating and Air Conditioning was voted "The Best Heating & Air Conditioning Company" in Greenwood and The Lakelands area voted in by readers of The Index Journal.

    • One Hour Heating and Air Conditioning was voted "The Best Heating & Air Conditoning Company" in Clinton, SC by readers of The Clinton Chronicle.


Dianne Collins

Dianne Collins - Owner

Dianne Collins is proud to be a local for 55 years. Dianne started working with John in 1994 after spending 22 years working at Moore Business Forms of Greenwood. Dianne's love and enthusiasm for One Hour Heating and Air grows each day based on the devotion, care and concern John shows all his customers and the same for his employees. How can you not love to come to work every day in a business like this one?

Angie Young

Angie Young - Customer Care Manager

Angie Young joined our team in May 1999 and serves as our Customer Service Representative and Service Manager. She lives in Coronaca with husband Danny and their 2 girls, Amber and Ashlyn

Barron Craig

Barron Craig - Technician

Barron Craig joined our One Hour team in October 2002. He started with our install crew many years ago and now is a part of our top technical team. Barron's home is in Bradley with his wife BG and their 3 children.

Bert Gates

Bert Gates - Technician

Bert Gates joined the One Hour team in October 2007. Bert works diligently with our install crew, as they focus on the most professional installation possible. Bert and his wife Lori live in Greenwood. They have a daugher.


Brad - Technician

Brad joined the One Hour team in October 2001. He has over 10 years technical experience and specializes in trouble shooting. Brad is a McCormick native and currently lives in Greenwood.

Eddie Reyes

Eddie Reyes - Technician

Eddie Reyes joined the One Hour Team in July 2003.You can also find Eddie working with our Benjamin Franklin Team, assisting our company whenever needed he is definately one of our assets. Eddie and wife, Brandi, live in Greenwood. They have 2 children, Eddie Jr and Sophia.

Jeremy Howard

Jeremy Howard - HVAC - Installation Technician

Jeremy Howard joined our One Hour Team in July 2010, he his a HVAC installer. Together Bert & Jeremy are responsible for many satisfied customers after completion of a new system install in their home. Jeremy and wife Olivia reside in Ninety Six with their 3 children.

John Collins

John Collins - Owner

John Collins was born and raised in Greenwood. He started a career in mechanics with his father, Red Collins, at his father's business Greenwood Auto Parts. After the loss of his father, John started a new career in the heating and air conditioning field. For 26 years John has been offering exceptional customer service for homeowners. Referral is a big part of our new client growth. John has contributed back to the community through various organizations some of which include: The American Cancer Society, Red Cross and The Humane Society.

Mike Fingar

Mike Fingar - Technician

Mike Fingar is our newest member of the One Hour Team, joining in 2011. He is originally from New York and now resides in Greenwood, South Carolina. We are excited and pleased to welcome our newest recruit.

Spencer Reeves

Spencer Reeves - Technician

Spencer Reeves joined the One Hour team in July 2006. Spencer and his wife, Samantha, live in Ninety Six. They have a daughter, Natalie. Spencer was deployed for a year in 2011 serving our country over seas, we are very happy to announce he returned safely in 2012 and has since returned work and is a valued team member of our.


    Estimates are FREE on replacing your air conditioner and/or furnace. Please call us for an appointment. (Scheduled at your convenience) Service Agreements are available. Call the office and become a Comfort Club Member today. With this agreement we offer: professional cleaning and rejuvenation of your system to as close to factory fresh condition as possible. Also any service repairs will be discounted 15% off normal pricing.


    • Air Conditioners
    • Air Handlers
    • Ductwork
    • Furnaces
    • Heat Pumps
    • Indoor Air Quality
    • Maintenance Agreements
    • Thermostats
    • 24 HR / 7 Days A Week
    • Call for all your Heating & Cooling needs.
    • Free Estimates for New Unit Replacement

    • Abbeville
    • Bradley / Troy
    • Calhoun Falls
    • Clinton
    • Cross Hill
    • Donalds
    • Due West
    • Greenwood
    • Joanna
    • Laurens
    • McCormick
    • Mountville
    • Ninety Six
    • The Lakelands
    • Ware Shoals
    • Waterloo

    We're sorry, but looks like we don't have any special offers listed for your location at this time.  Please call your local One Hour Heating & Air Conditioning at 888.333.8888 to see if any new offers are available for you!

  • Maintenance Program

    The One Hour Heating & Air Conditioning® maintenance agreement, Comfort Club™, provides you with regular system checks. 

    A Comfort Club™ agreement will keep your system running at its peak.


A family of home services:

Strong partnerships and a national support system.

Independently owned and operated.