FAQ

Frequently Asked Questions

We might just have the answer you seek. However, If we don’t have what you’re looking for below, we encourage you to reach out. We always look forward to being of assistance to you, your home, or your business!

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Do You Service All Brand Manufacturers?

At AirMax Heating & Air, we proudly work with all systems and most major manufacturers. However, if you have a rarer brand, you can always call us or send us an email to confirm that we can help you.

Do You Have A Discount For New Customers?

Yes! If you're new here, we'd like to welcome you to the AirMax family with $20 off your first service call. To claim, simply fill out any of our contact or request service forms, or give us a call and let us know you'd like to take advantage of this discount.

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Should I Hire a Professional Contractor? (vs. DIY)

It’s easy for Charleston, SC, homeowners to think they can tackle HVAC repairs or installations by themselves instead of hiring professional contractors. However, attempting DIY repairs can be costly and dangerous. Most HVAC warranties become void when amateur homeowners tamper with their machines. Additionally, HVAC systems contain harmful gas that could lead to a fire, a gas leakage, or even sudden combustion.

Do You Serve My Neighborhood?

We are excited to serve Charleston, SC, and neighboring communities. The communities we primarily serve include Charleston, Wando, Mt. Pleasant, Awendaw. If you’re unsure of whether we service your neighborhood or not, please check out our areas we serve page or give us a call.

Areas We Serve

Are You Hiring?

We are hiring! We’re always looking to bring qualified, passionate technicians and customer service representatives to our team. Simply call us or visit our careers page to inquire about available positions.

What Does HVAC Stand For?

HVAC stands for heating, ventilation, and air conditioning. HVAC is a general term that encompasses all of your home's heating and cooling systems. Whether you use a furnace, a geothermal heat pump, or a ductless air system, all of this refers to your HVAC system.

What Is a SEER Rating?

SEER stands for Seasonal Energy Efficiency Ratio, which can help you identify your AC’s ratio of cooling output during each season.

Are HVAC Air Filters All the Same?

Unfortunately no, not all HVAC air filters are the same. Filters vary greatly in quality, depending on the brand you purchase. We recommend aiming for a MERV rating between 5 and 7.

How Often Should I Replace My HVAC Air Filters?

On average, most homeowners should replace HVAC filters once every thirty days. However, the actual number depends greatly on various factors, such as whether you have pets, are currently in an allergy season, and so forth.

What HVAC System Manufacturer Would You Recommend?

Currently, our market is flooded with various brands and companies, not all of which have the same quality. We recommend using Carrier, as they craft the most dependable, quality HVAC systems. We also recommend AirMax Heating & Air service, whose team in Charleston works with all systems and most manufacturers, and Mitsubishi Electric, American Standard, and Rheem.

Replace or Repair My Broken AC Unit?

Deciding if you should replace or repair a broken AC unit can be challenging. If your repairs cost more than half of the initial cost of your AC unit, it may be time to replace it. Additionally, AC units typically have a lifespan of about 15 years. If your AC unit is getting up there in age, it may be smart to replace it.

What Are Ductless/Mini Split HVAC Systems?

Ductless mini split HVAC systems are heating and cooling units that can operate without an air duct network. These systems are very powerful and can be convenient solutions for smaller homes that don't have existing air duct systems.

AC Drain Pan Full of Water?

If you notice your AC drain pan is full of water, it is likely due to a clogged drainpipe. If you live in Charleston, SC, make sure to call our experts to fix your AC right away!

Help! My AC Is Frozen!

Sometimes when you have clogged air filters, clogged condensate lines, or a damaged blower fan, your AC unit can freeze and stop working. When this happens, we can come out to get it back up and running.

Contact AirMax

What Is Dual-Zone Air Conditioning?

Dual-zone air conditioning means that different rooms (or zones) in your home are set to different temperatures, resulting in an optimally moderated temperature in your home. Dual-zone air conditioning is especially helpful if you have rooms in your home that are cooler or hotter than others.

Should I Zone My House?

A zoning system allows each room of the home to have its own temperature. If you decide to zone your house, you should take into consideration room size, function, and how hot or cold each family member prefers.

Can Outdoor Conditions Prevent My Cooling System from Operating Effectively?

Unfortunately, outdoor conditions can prevent your cooling system from operating effectively. When debris, dust, dirt, and other outdoor items dirty your cooling system, it can prevent your HVAC unit from operating. This is why it’s so important to have your system routinely serviced and cleaned by a professional, like AirMax Heating & Air.

Are Heat Pumps More Efficient?

Generally speaking, yes, heat pumps are more efficient than gas furnaces. In many areas, heat pumps are over 100% efficient.

Why Is My Throat Dry While in My House?

Your throat may be dry if the air in your home is dry. For this, homeowners can purchase a humidifier to add more moisture to their air.

Why Is My House Humid?

A number of factors can impact a home's humidity levels, including outdoor humidity levels, showering, cooking, and cracks in your plumbing system. Additionally, a poor ventilation system could be causing the humidity.

What Are the Benefits/Disadvantages of Humidification?

When used properly, a humidifier can help alleviate scratchy throat and dry skin, and it can even help reduce cold and flu symptoms. However, when overused, humidifiers can worsen respiratory problems.

Should I Have a Home Dehumidifier?

You may want to purchase a dehumidifier if you or a family member suffers from COPD or other respiratory issues. Dehumidifying your air can help control dust, mold, and other allergens. Additionally, a dehumidifier may help keep your home cooler if you live in a humid environment.

How Can I Improve My Indoor Air Quality?

Perhaps the best way to improve your indoor air quality is to clean and replace your HVAC filters. When your heater is turned on, it sucks debris out of your air and into your filter. When your filter is clean, it collects this debris at a much better rate. Additionally, your team at AirMax can install UV lights and air filtration systems in your home.

Are Air Filtration Systems Worth It?

Absolutely! For the best air filtration system and HVAC maintenance, call Airmax Heating & Air. Air Filtration systems improve your home's indoor air quality, and aids in maintaining a healthy home for you and your family.

HVAC vs. Furnace: What's the Difference?

A furnace is the heating element that focuses on heating only. Your HVAC encompasses all of your heating, ventilation, and cooling systems.


How Can AirMax Help?

Let us know how we can help you below. A member of our team will call to schedule a time. Getting started with us is that simple, really.
We look forward to serving you, neighbor!

Cody was very knowledgeable and efficient. He spotted prior installation issues from another vendor as well as fixing the leak in our coil. Great service!Jay T.
AirMAX Heating & Air in Charleston

HVAC in Charleston

AirMax is your go-to heating & air experts in Charleston, SC.


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AirMAX Heating & Air
We Are Your Family-Owned and Operated HVAC Service Provider

Our Team of Professionals Serve Charleston, SC & Surrounding Communities

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Our team is professionally trained, local, and ready to serve you in Charleston, SC, and surrounding communities.

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