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    Average homeowner rating
  • Verified reviews icon36
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Marion

Harold's AC Repair
4.9(
24
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceElectric Furnace / Forced Air Heating System - Repair+2 more

Serving Marion, SC and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

"Twice in 4-5 yrs. Harold responded later in the day of the call both times. Both times repairs were made immediately and were effective. Harold is my gi to HVAC guy"
Response time6 hrs
Response rate89%
11 neighbors recently requested a quote
Avatar for Duct Masters
Duct Masters
5.0(
56
)
Air Ducts & Vents - Clean

Serving Marion, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Very courteous and very respectful of property. Very careful not to damage anything. Thorough and knowledgeable concerning duct issues. Reasonable price. Highly recommend and would use again."
Duct and dryer vents
20x25 return duct
40 years of build up
40 years worth of dust gone
A young home on the coast

+4

Response time8 hrs
Response rate92%
52 neighbors recently requested a quote
Avatar for Swift Services Heating & Cooling, LLC
Swift Services Heating & Cooling, LLC
4.0(
64
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+10 more

Serving Marion, SC and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Emergency services offered

"The technician's (Tim and Chaun) that did the installing of my HVAC were courteous and professional. Tim made sure everything was working to his satisfaction before he left and told us he would check back in a day or so to make sure it was functioning properly. My wife and myself very pleased. I should also state two years ago we had a new HVAC installed by Swift and continually had problems with it. After many service calls with little luck correcting the issue, Swift installed a new unit. Five more stars to Swift for integrity!"
Response time10 hrs
69 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Bakers Residential Experts
Bakers Residential Experts
4.5(
15
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+18 more

Serving Marion, SC and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"My HVAC unit quit working with temperatures in the 90's. I made an appointment, and Bakers updated me via text so I would know precisely when the technician would arrive. The technician was professional, courteous, and knowledgeable. He found and resolved the HVAC issue in short order. Pricing is very reasonable. I recommend this company without reservation."
Split Heat Pump
Response time11 hrs
37 neighbors recently requested a quote
Recommended by90%of homeowners
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Heating and Air Conditioning questions, answered by experts

Not if you have a standard unit. Because portable AC units actually work to dehumidify the room, you’ll likely need to drain the unit from time to time—but you won’t have to put water into it. There is, however, another type of air conditioner called a swamp cooler that requires water to operate. If you have a swamp cooler, you may need to fill a reservoir with water and potentially ice. But a swamp cooler is different from a standard portable AC unit.

Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent common AC problems.

You should use a breathable, weather-resistant cover with ventilation. It can be a top cover or a full cover that has mesh to allow airflow. A full, non-breathable cover can cause moisture to build up, leading to rust, frozen parts, and corrosion. A full cover also attracts unwanted critters, such as mice, that can damage the wiring and your unit. If you need to protect your AC unit from falling icicles, choose a sturdy top cover or piece of wood that prevents icicles from damaging your unit.

If your HVAC system's capacity doesn't match the required CFM (Cubic Feet per Minute), imbalances can occur. An undersized system struggles to maintain desired temperatures, leading to discomfort. An oversized system might short-cycle, wasting energy and causing temperature fluctuations. Properly matching capacity to CFM ensures efficient and consistent heating, cooling, and home ventilation system performance.

To diagnose a bad HVAC or AC damper, assess the airflow from your vents. For a manual damper, close it, run your system, and check for airflow. If air is still coming through the vents, the damper is likely faulty and needs repair or replacement. For an automatic damper, turn on your HVAC system and monitor the airflow and room temperature. Signs of a problem include low airflow, a room that won't maintain its set temperature, or a drafty feeling. If you suspect a faulty automatic damper, you may need to hire a professional for repairs.

The Marion, SC 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.