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TRUSTED BY SAINT JOHNS, FL HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.3k+
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Saint Johns

Avatar for Cool-R-Us, Inc.
Cool-R-Us, Inc.
4.8(
348
)

Serving Saint Johns, FL and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Technician arrived on time. Professional and friendly. Answered all questions, and made suggestions on ways to help keep our old Trane HVAC system in good operating condition. Very pleased with first-time experience with Cool-R-Us."
AC SYSTEM INSTALLED ON CHANGE OUT
AC SYSTEM INSTALLED ON CHANGE OUT
AC SYSTEM INSTALLED ON CHANGE OUT
AC SYSTEM INSTALLED ON CHANGE OUT
AC SYSTEM INSTALLED ON CHANGE OUT

+2

Response time6 hrs
Recommended by98%of homeowners
Avatar for David Gray Heating & Air
David Gray Heating & Air
4.5(
141
)

Serving Saint Johns, FL and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"David Gray installed my heat pump sometime ago. I have always signed up for the maintenance packet. A guy came out and found a non-working part. It seemed to be working properly but wasn't. Kevin found the nonworking part. Then William installed the part and I see a difference in the comfort level. They ordered the part and within 48 hours had it installed. I have 10 year parts and labor so this cost me nothing. Kevin saved me a ton of money. I am impressed with their customer service and have used them for over 17 years now. Kevin found the problem and William completed the repair. Teamwork! Thanks fellas! I - and my family - appreciate all your good work!"
AC Installation
AC Installation
AC Installation
AC Installation
AC Installation

+13

58 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Five Star Heating and Air, LLC
Five Star Heating and Air, LLC
4.9(
86
)

Serving Saint Johns, FL and surrounding areas

Approved

In business since 2007

Credit card accepted

Offers commercial services

"5 Star Heating and Air is a phenomenal company!!!! Brandon represents the name of his company; he’s a “5-STAR” young man who truly knows the business of Heating and Air Conditioning!!!! I am extremely pleased with their response time to my initial call, the timely manner in their performance of the repair issues that needed to be done...and, most importantly, their professionalism they demonstrated at my home. I would highly recommend this company....so much so that I would do a commercial for their company!!! Their company is well-named, “5 Stars!!!!”"
Evap cleaning
Evap cleaning
Evap cleaning
Equipment and install
Equipment and install

+29

Response time7 hrs
4 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for E-Z Air HVAC, INC.
E-Z Air HVAC, INC.
5.0(
11
)

Serving Saint Johns, FL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Elmer came out within less than an hour from the time of quote. He charged exactly what he said he would and was transparent about prices prior to making fixes. He replaces the capacitor and then turns out the outdoor motor fan was broken, he went out of his was to get us a preowned part the same day to save us some money. No one loves spending the extra money, but overall the experience was pleasant. He was professional, timely, and our AC is now up and running."
Rheem 2 ton
3 neighbors recently requested a quote
Avatar for Measday's Heating & Air
Measday's Heating & Air
5.0(
21
)

Serving Saint Johns, FL and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Our AC unit quit working last May. We met & received bids from several franchises in Jacksonville, but were not satisfied. After meeting with Thomas Measday we decided to support his local small business. Thomas & team are honest, professional and took time to explain and answer all our questions. They took under 5 hours to install a complete new system!! It’s been a year and we are completely satisfied. We highly recommend Measday as they are a 5 star company."
Bryant AH Install
Bryant Condenser Install
Trane AH Install
Trane Condenser Install
Goodman AH Install (Attic1)

+8

Response time2 hrs
28 neighbors recently requested a quote
Recommended by94%of homeowners
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Showing 1-10 of 313
Heating and Air Conditioning questions, answered by experts

On a summer day, expect your AC to run between 12 and 16 hours. However, this time frame depends on just how hot it is outside and the comfortable temperature you’re hoping to maintain indoors. Assuming the size of your AC is appropriate for the space you’re trying to cool, it shouldn’t be a problem for it to work this many hours.

Yes, having mismatched evaporator and condenser coils in your AC system can lead to serious issues. For instance, it can result in higher monthly energy costs as the system runs longer to compensate for the mismatch. This mismatch can also put extra stress on the system, compromising its efficiency and longevity. 

Along with that, mismatched coils can lead to higher temperatures and humidity levels in the home. What’s more, using coils of different sizes may violate the manufacturer's warranty, as they are designed to work synergistically, and any mismatch could lead to repairs and system failure.

The length of an AC cycle depends on the settings in your thermostat and the unit you have. Central AC doesn't constantly run at full blast the way that a window unit does. A cooling cycle in most homes is 15 to 20 minutes. Then, the unit stays off for seven to 10 minutes to circulate the cold air in the house before the cycle repeats. It should repeat two or three times per hour. A short cycle lasts less than 10 minutes and then turns off.

AC capacitors have a wide lifespan, ranging from five to 20 years, with an average of about 10 years. Many capacitors will last for the entire life of the air conditioning unit, and most homeowners only need to replace one once. A capacitor should only be replaced if an HVAC professional diagnoses a problem with it. Premature failure can be caused by overheating, power surges, or short circuits. You can help extend the life of your AC capacitor by scheduling regular AC maintenance each year.

Yes, a dirty evaporator coil can freeze up. Dirty evaporator coils can’t absorb or transfer heat properly. The dirt and grime restrict airflow, which is needed to move heat throughout the system properly. Your air conditioning unit could freeze over, or it can cause your heat pump to freeze.

The Saint Johns, FL homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.