McDaris A/C & Heating in Houston, Texas, has been a trusted residential AC Repair & HVAC Services company for more than 50 years. - 17615 Laguna Trail Drive, Houston, TX 77095. McDaris A/C and Heating, Inc
For Free Estimate on New Installation, Call Us (713) 777-5788
McDaris A/C & Heating in Houston, Texas, has been a trusted residential AC Repair & HVAC Services company for more than 50 years. - 17615 Laguna Trail Drive, Houston, TX 77095. McDaris A/C and Heating, Inc

What are the Most Common Commercial HVAC System Issues that Require Repair?

Unfortunately, there’s likely to come a time when you’ll face issues with your commercial HVAC system that require a professional repair. The following are the five most common problems that can arise with your HVAC system, requiring a call to your service technician.

A Lack of Regular Preventative Maintenance

Failing to have regular preventative maintenance performed on your commercial HVAC systems can often give rise to bigger issues. Problems that would have been caught during a maintenance visit are allowed to worsen, resulting in the need for extensive–and potentially major–repairs.

Refrigerant Leaks

Your HVAC system’s refrigerant is a key component in its cooling function, allowing the unit to cool and dehumidify air. Any refrigerant leaks in your HVAC system can result in too little refrigerant to properly cool the air, necessitating that the leak be repaired and additional refrigerant added.

Unbalanced Air Flow

Ideally, hot or cold air will be pushed by your HVAC system through all vents in your building at equal rates. Sometimes, however, some rooms end up receiving too much or too little heated or cooled air. To fix this problem, your HVAC service technician will likely need to balance the dampers that help control air flow throughout the system.

Malfunctioning Thermostats 

It’s not always the HVAC system itself that causes problem requiring professional help. Your thermostat communicates with the HVAC system, regulating the system’s timing and the amount of cold or hot air produced. When a thermostat starts to malfunction, it can send incorrect signals to the system, resulting in poor performance–and necessitating a visit from a professional repair person.

Clogged Filters

Filters help keep allergens, dust and other pollutants from circulating around your indoor spaces, but these filters will slowly become clogged as you use your system. Dirty filters mean that both your heating and cooling systems must work harder to warm or cool the air, resulting in higher energy costs and lower system lifespans. Having a professional change out your filters periodically is one of the most important–and most commonly needed–repairs.
Let us help you keep your business running smoothly and your customers comfortable! Call McDaris A/C & Heating LLC today, and let us help you keep your commercial HVAC system in top working order!

Houston HVAC Installation & Replacement

McDaris A/C & Heating has over 50 years of experience installing HVAC systems in Houston, Texas.  Whether you are upgrading from an old air-conditioning unit or replacing a broken air conditioner, we are the HVAC professionals to call!

How do You Know When it’s Time to Replace Your Air Conditioner?

No one wants to reach the height of summer and realize that their air conditioning system isn’t meeting their family’s needs. Recognizing the signs that you may need a new air conditioner before temperatures inch towards the triple digits, can save you a lot of money and headache.

Rising Energy Bills

Whether because of failing performance due to maintenance issues or simply outdated technology, many older air conditioning systems are much less energy efficient than their newer counterparts. This means that you could end up paying significantly more each month in energy costs with your existing system than with a new, more efficient air conditioner.

Lower Air Quality

The air filters in your air conditioner are designed to keep allergens, dust and other pollutants from circulating throughout your home. Over time, however, the ability of your air conditioner to filter these particles out decreases, even if you change the filters regularly. Updating your air conditioning system can result in purer and easier-to-breathe air for your family.

Insufficient Features

With all appliances, new technological innovations bring new features, and air conditioners are not exempt from the larger range of options provided by innovating companies. If your current air conditioning system is older, your family may be missing out on some key features such as quieter operation and a remotely-controllable thermostat that can make your home more comfortable.

What are the best brands of Air Conditioners when it comes to efficiency and value?

Whether you’re looking for the highest efficiency air conditioning system or the one with the best value, several brands stand out from the rest.


While one of the higher-end (and thus more expensive) air conditioning brands on the market, an investment in an Amana system can be worth it thanks to their high efficiency ratings. Several Amana models were included on Energy Star’s Most Efficient 2018 list due to their high SEER numbers.


If you need a more value-oriented system than Amana offers, Goodman can be an excellent choice. Goodman owns Amana and uses many of the same internal components, resulting in high-quality and efficient air conditioning systems that are priced significantly lower than Amana.


On the higher end of the price spectrum again, Carrier offers a wide range of efficient and high-performing air conditioning systems backed by a long track record of reliability. A number of their systems reached Energy Star’s Most Efficient 2018 list thanks to their excellent efficiency numbers at both heating and cooling.


Bryant has lower name recognition than many brands, but their reliability, efficiency and value should make them a strong contender for your air conditioning system replacement–and they also made their way onto Energy Star’s Most Efficient 2018 list. 

Factors to Consider When Choosing a New Air Conditioning System:

Once you’ve made the decision to upgrade to a new air-conditioning system, understanding the key features to consider is important. Here are the top three factors you should weigh as you make your choice.

SEER Rating

In short, an air conditioner’s SEER rating refers to the ratio of cooling output to energy consumed; the higher the number, the more efficient the system. Due to state regulations, most systems on the market have a SEER rating of at least 13, but highly-efficient air conditioners can reach a 25 SEER rating. In general, the increased efficiency of a high SEER-rated system can help lower energy bills on a monthly basis.


Given that one of the major reasons why many homeowners replace their existing air conditioning systems is because of a lack of features, examining those included in a new system is important. Consider the wide range of features available in various units and how they meet your family’s needs, including noise-reduction technology, smart thermostat compatibility, variable speed systems and more.

Reliability and Warranty

A new air conditioning system is a big investment, and you want to make sure that your investment doesn’t fizzle out quickly. Looking for a brand that has a long-standing reputation of reliability and long-term functionality is key, as is considering the benefits (and limitations) of any warranty offered.

Replacing an old or broken air conditioner is a big job, and McDaris A/C & Heating can offer you valuable peace of mind when it comes time to tackle it!  We are fully insured, and have all of our fully licensed, experienced Houston HVAC service technicians arrive in a uniform that you will recognize.

With our up-front pricing, ensuing you approve of all costs before we begin the work, you have nothing to lose but some cool air.  Call us today!