Author Archives: Andrews Heating & Cooling

How Do I Keep My House Mold Free?

Mold growth in homes is most commonly found where water is, so on shower tiles and in air ducts, or in kitchen sinks. This fungus can also grow on walls or ceilings from leaks as a results of burst pipes or holes in the walls. While mold can be many different colors, it is always distinguished by its musty smell. Other symptoms that can indicate mildew growth in a home are poor indoor air quality resulting in inhabitants coughing or wheezing, irritated eyes or throats, or stuffy nasal passages. If you believe your have mold in your Rock Hill, SC home, call Andrews Heating & Cooling at 704-887-6143 for a mold test and removal.

What Temperature Should You Keep Your House To Prevent Mold?

Mold thrives in humid climates, so if your home is consistently hot and there is any chance of water or moisture in the air or on your walls, then spores will spread and the fungus will start to grow. To prevent this mildew from growing, keep your indoor air temperatures between 68 and 72 degrees Fahrenheit. This will not only prevent your home from getting too hot and making it uncomfortable for the occupants, but it will help to control the humidity in the home, as well.

hand scrubs mold on a wall

Your Indoor Air Quality and Health Are Affected With the Presence of Mold

Can humidifiers cause mold? While humidifiers are great at helping with problems related to dry air such as breathing problems, nosebleeds, and dry skin, it can further increase the chances of the breeding grounds of mildew if you are not careful. The humidity level in a home should not exceed 50 percent or else the indoor air quality gets compromised as the air begins to feel stuffy, thick, and hot. This type of insufferable air is what mold thrives on, and will spread like crazy once this atmosphere is created. Even if your humidity level stays below 50 percent, if you don’t regularly clean out your humidifiers, mold can grow there as well, and the humidifiers can then just blow the spores into the air.

How Do I Get Rid of Mold in My House?

To get rid of mold or mildew in your home, you will need bleach and ammonia to kill the fungi. If the fungi covers more than 10 square feet of a certain area, then professional mildew removal is needed as you might have black mold hidden behind your walls which requires much more serious chemicals and expertise to permanently remove. A mold inspection using a mold or mildew test can determine this for sure. Be sure not to mix the bleach and ammonia together as the fumes are toxic, but to alternate using the products. The way you deal with this fungus and remove it is:

  • Scrub the infested area with a mixture of water and laundry detergent, then let air dry.
  • Wash again with a mixture of water, and ¼ cup of bleach.
  • Don’t let the area dry before immediately scrubbing the surface with plain bleach.
  • Wait 20 minutes and scrub with bleach again. Wait another 20 minutes and scrub with bleach for a third time.
  • After another 20 minutes, wash the surface with an ammonia or borate-based detergent mixed with water to prevent the recurrence of mold. Do not rinse the borate mixture off.
  • Repeat on any areas you see the fungus growing.
  • Remove the cause of the fungus, such as repairing a burst pipe or replacing the ruined insulation that the mold grew on behind your walls. A basement waterproofing sealant can help to prevent any water from penetrating your walls and resulting in mildew growth.

What Prevents Mold Spores From Spreading?

How long does it take for mold to spread in walls? It only takes 24 to 48 hours for mold to germinate and start growing, with visible results of the fungus appearing anywhere from 18-21 days later. In order to keep the mold spores from germinating and spreading in that brief window of time, you need to act fast. As soon as you notice any moldy objects, isolate them and disinfect the area where you found them. While freezing does inactivate the mildew, it does not stop the spreading of the spores, it just kills the already-alive and spread ones.

The best way to keep these spores from spreading is to lower the humidity in your home to below 50 percent and cool down your home by lowering the temperature as well. Adjusting inside humidity can be tricky, but if the outside humidity is lower than the inside, try opening windows or turning on the air conditioning to help circulate fresh air. Installing dehumidifiers to suck the moisture out of the air can help, too.

Keep Your Home Safe With the Removal of Mildew

Not only is this fungus unsightly, but the fungus presents serious harm to human life when breathed in. if not taken care of, your health and home are severely weakened. If you have mold issues in your house and are having bad indoor air quality as a result, then you need to call Andrews Heating & Cooling at 704-887-6143 for dehumidifier installation to help remove mold in Rock Hill, SC today.

Is Your Heater Working as Well as It Could?


Your Heating System Needs To Work At All Times.

Your heating system should be working properly at all time. If it is not, you could be wasting valuable money from a system that is running all the time but not letting off hot air. This often happens when your HVAC system is not working properly and it will turn on and run for many hours without hot air being pushed out of it. Usually, air will come out but it will just be room temperature or even slightly cold. A central heating unit will do this in all rooms of the house. If it is just one room that is not getting hot air, the problem probably lies inside of that one area, not the entire place. When the central heat and air system is not working, you will need to call an HVAC technician to come do a central heating system repair. They will be able to come out and get the issue worked on right away so your system will hopefully be up and running again shortly. There are several different things that you can do to make sure that your central heating system is working properly or even that your home is where it should be. If you have a metal roof, sometimes it can get hotter inside the home, one thing you can do to help with that and to help your heating system to have to work a little less would be to get a metal roof coating. Another great way to keep your home safe and also make sure your heating system is working at its very best, is to get regular inspections done on it. When you have a technician come out and look at your system, they will be able to help you find what is going on or just to make sure everything is working the best way that it should.

Types Of Heating Systems

  • Electric Space Heaters
  • Heat Pumps
  • Gas fired Heaters
  • Wood Burning
  • Furnaces
  • Fireplace
  • Boilers

What Type Of Heating System Is Best?

There are many types of central heating systems that you can use, but the best and the most common would be a furnace. It works by pushing the hot air out through a duct system that goes all throughout your home and blows in different rooms. You can get these that run off of electricity or gas so they can go in virtually any home. There are different central heating services that you can do every year that will keep it running properly and allow you to not have to worry about it not working in the middle of winter like many times will happen. If you have a larger home or live with a family, a furnace will probably be the best option for you to choose.

How a central heating system works in a house

Central heating system for a home is a great thing to have. Many homes in the US do have central heat, but there are homes all over the US that also have nothing because they live in a more tropical climate, like Florida or Hawaii. The way that central heating systems work, are that they create hot air and then move it through a duct system that will deliver air to each room in the home that has been duct and vented with one. These are usually controlled by a thermostat and some can even be controlled right from their phones.

Central Heating System vs Heat Pump

Central heating and heat pumps are both very good systems to have. The problem with a heat pump is that they are not good for places that drop below 30 degrees. This is when you would have to supplement with a central heating system anyway so it is probably more cost effective if you live in colder area, to go ahead and get a central heating system instead of doing heating pump. The good thing about a heat pump is that it can save you more money than a central system can.

Signs You Need a Heater Repair

  • Cold air starts blowing out of the vent
  • Only runs for a very short amount of time
  • Your heating costs keep going up
  • The smell of something burning is happening from your vents or around furnace area

When you need to have your central heating system checked in , SC, make sure that you call Andrews Heating & Cooling at 704-887-6143 so that you are able to keep your heater running properly for as long as you can. We also offer service maintenance so that you never have to remember when it is time to check your heater, because we will do it for you. Don’t Wait until winter is about to hit to fix the problem, call us today and let us help you.

The Importance Of Air Conditioner Maintenance


Man Checking A/C

Have Your A/C Checked Every Season.

Maintaining your A/C is a very important part of keeping your home running smoothly. It is also very important to have it done around the summer months before it gets too hot because that can become very dangerous for you and anyone or thing living in your house. While you are keeping the inside of your house cooled off, make sure you get the roof decking repair done you have been wanting so you can enjoy the summer outdoors as well. Not only will this help you have better indoor air quality, it can help prevent things like mold from developing and causing a lot more problems in the future. Consider one of our top of the line units like the carrier air conditioner to leave you with reliable high functioning cold air.

What To Look Out For

Strange Noises – If you start hearing strange noises coming from your ac, it may be time to call out a professional to handle it for you or take a look to make sure that nothing is in there.

Dirty Filters – Dirty filters can cause all kinds of problems. Who knew such a small step could make such a large difference.

Blowing Hot Air – If you turn your ac on and hot air blows out, this is the telling sign that something is wrong.

Time You’ve Had It – If you have had your ac for a lot longer than it was originally said it would last and you are beginning to have issues with it, it may be time to just get a replacement.

If you need air conditioner maintenance in Rock Hill, SC, call the professionals at Andrews Heating & Cooling by calling 704-887-6143.

Why Are Roof Vents Needed?

Roof Vent

A Roof Vent Works With Your Air Conditioning To Balance Temperature and Air Flow Inside The House

Ever see that vent on top of your home’s roof? Wonder why it is there? It helps to release hot air from your attic outside.  While hot air is great in the winter, too much of it can actually cause your attic insulation and roof decking to warp. The release of hot air also helps to maintain better airflow all through the house as your HVAC unit can maintain an even balance of air quality. If you think your roof vent is acting weird, call Andrews Heating & Cooling at 704-887-6143 for repairs in Rock Hill, SC.

How Roof Vents Help Lower Air Conditioning Costs

  • If your attic insulation is moist, you have a leak, either from your roof or air conditioner. If it is from your roof, you’ll need roof repair. If the leak is from a malfunctioning HVAC unit, you may need to replace your Honeywell condenser coil.
  • Circulates cool air in hot areas like the attic so your air conditioning unit doesn’t have to work as hard.
  • By the roof vent moderating the temperature in the attic, it subsequently balances the temperature throughout the house.
  • Helps prevent condensation from forming on your attic insulation from snow or rain that could lead to rotting or mold.
  • If you get snow in the winter, the roof vent help prevent ice dams from forming on your roof by releasing the hot air from your attic to melt the snow.
  • Prevents your shingles from getting baked and warped from extreme heat.

How to Make Your Home Energy Efficient

Having an energy efficient home not only minimizes your effect on the environment, but it can also save you money and as well as extending the life of your roof system, air conditioner, and more. While there are a variety of ways to make your home more energy efficient, there are some small, inexpensive changes you can make that will have a drastic effect. Try these tips for extreme energy efficiency in your home.

Energy Efficient at Home Tips

Our Technicians Can Help You Get a More Energy Efficient Home.

While most of us already know that switching from standard to an LED type can save energy costs, as can changing your air filters in your AC system. However, there are a variety of other things you can do around the house to save energy.


Energy is often lost through the roofing system in the form of heating and cooling because of damage to the material, underlayment damages, or even insulation wear. Keeping your roof system in tip-top shape can greatly reduce the amount of energy your home uses. Materials such as metal, synthetic shingles, and flat roofing styles can also lend to extreme energy efficiency by protecting your home from UV rays.

Household Changes

Simple tasks like resealing your doors and windows and using energy star certified appliances can also help save energy and costs. These appliances use less energy to operate while providing the same performance level.

Air Conditioning and Heating

Believe it or not, your AC system can save remarkable amounts of energy simply by adjusting the thermostat. Simply set your thermostat a degree or two higher and turn on your ceiling fans to make the air feel cooler. Correct maintenance also helps preserve energy with your HVAC system. Clean, efficient systems need to work less to provide the same amount of air control, leading to less energy used.

Energy Efficient Home Heating and Cooling Systems

Many of today’s HVAC units are considered to be energy efficient. The best way to ensure that your unit is energy efficient is to keep it maintained and cleaned regularly. Keeping the condenser free of debris can also help by minimizing the level of work your unit must do. Making sure that your unit is the correct size for your home is also imperative when considering energy efficiency. A unit that’s too small will run more often to keep up, and a unit that is too large will use more energy than is required to regulate your home’s temperature. Keeping your ducts maintained can also go a long way for energy efficient homes. Clean, unobstructed ducts provide easier air flow which minimizes the amount of energy your system needs to use.

Your Local Air Conditioning Experts

To ensure that your home’s HVAC system is as energy efficient as it can be, call the Andrews Heating & Cooling experts at 704-887-6143 for a complete inspection. Our experts can adjust and tweak your system to provide outstanding energy efficiency for lowered energy bills as well as a smaller carbon footprint.

Get the Most Out of Your HVAC System Inspections

Gas Furnace

They’re Already There; Ask Your Inspector About Future Replacement Options.

HVAC system inspections are consistently underappreciated and underutilized. The trust is: inspections can help you save thousands of dollars on your heating, ventilation, and air conditioning, but most homeowners don’t even schedule one until an emergency strikes. Be a smarter consumer! Follow these three tips, and you’ll be the friend everyone thinks of when they talk about successful home ownership. 

Tip #1: Schedule Regularly

Stop right there! No, you don’t necessary have to schedule an inspection every single year. You can schedule every two (or even three) years if you feel comfortable doing so; the most important thing is consistency. Don’t be that homeowner that waits for an emergency to limit their options. All it takes is a little planning ahead and a small note on your calendar.

Tip #2: Exploit Your Expert’s Knowledge

While you have your HVAC serviceman in your home, why not take advantage? Start asking questions about your system. It’s especially valuable to know when parts of your HVAC system are set to expire, and what sort of replacements would be most ideal for your home. For instance, if you learn your furnace is in the last three years of its lifespan, ask what sort of replacement could help you save money on your energy bill. The best part is: you can start putting away a little money now so that you can buy the best, long-lasting system available for your budget!

Tip #3: Two-Timing Your HVAC Company

It’s alright to get a second opinion. It’s even better to get a second cost-estimate for a part replacement. If one service company quotes a price that you find suspicious or exorbitantly expensive, call another provider and compare prices. You might even find that your home doesn’t need as much work as you thought.

Don’t wait till an emergency strikes and options are limited! Use HVAC system inspections to save thousands of dollars on home maintenance. For more info on inspections or other air conditioning services, talk with our experts at 704-887-6143.

When Do You Need to Get Your AC Repaired?

The temperatures are starting to increase each day, which means that our air conditioner will be working hard to provide us with excellent cooling. In order to ensure your AC doesn’t have a complete breakdown, it’s important to know when to get your AC repaired. Below are signs that it’s a good idea to call a licensed HVAC contractor to get your AC repaired in your home or business.

Loud Noises Coming From the AC Unit

When Do You Need To Get Your AC Repaired?

Signs You Need to Get Your AC Repaired.

It’s normal when the AC turns on or off and there is a little bit of noise; what’s not normal is rattling or banging noises. Get it looked at right away in order to solve the incessant noise and to protect your air conditioner from further damage.

There Is Inconsistent Air Flow

Are you getting cool air in your home or business but it’s really weak? Have you noticed that some rooms are colder than others? This can be due to a damaged compressor and can be properly fixed with the assistance of a professional technician.

There Isn’t Any Air Flow

One of the worst problems is that the air conditioner is turned on but there isn’t any air flow coming from the vents. This could be due to low refrigerant or the compressor could be failing. Either way, this is a time you should get your AC repaired.

Your Cooling Bills Have Increased

This could be due to other factors in your home, but one of the most common suspects is an air conditioner that is not efficient and requires repairs.

If you need air conditioning repair in Rock Hill, SC, please call Andrews Heating & Cooling today at 704-887-6143 to speak with an expert HVAC contractor.