CLS Mechanical, Inc.

4.9
53 reviews

About

HVAC ContractorAir Conditioning ContractorHeating Contractor
CLS Mechanical, Inc. provides residential and commercial HVAC and refrigeration services to Mulliken, MI, and the surrounding areas.

Location

CLS Mechanical, Inc.
3201 W Grand Ledge Hwy, Mulliken, MI
48861, United States

Hours

Reviews

4.9
53 reviews
5 stars
50
4 stars
2
3 stars
0
2 stars
0
1 star
1
  • TM
    Tom Murray
    Oct 11, 2025
    5.0
    I called Cls they were at my house in a couple hours fixed the problem I was having with my furnace. Chris did a very good job
  • LS
    Lauri Stott
    Jun 13, 2025
    5.0
    I was referred to CLS by my neighbor. Their customer service was great. Even though it was a busy time of the year they were there to help. If they were running late they called. I will be calling them back in the future.
  • ED
    Emily Dinh
    Jun 6, 2025
    5.0
    CLS is my go-to mechanic for my old house's heating system. CLS is knowledgeable, prompt, friendly and thorough. I couldn't ask for anything better.
  • AH
    Anthony Hayes
    Mar 27, 2023
    5.0
    The company owner came out and repaired my furnace himself. Amazing customer service, only company I will use.
  • VG
    Val Goodman
    Jul 3, 2022
    5.0
    Reliable, friendly. Chris and his crew are the best!

Frequently Asked Questions About CLS Mechanical, Inc.

Why is my AC running but not cooling?

There are a number of reasons why your air conditioner might be running but not cooling. The following are just a few of the many different possibilities. One of the most common reasons why an air conditioner will run but not cool is because the evaporator coils are frozen. When this happens, air can’t flow properly through the coils, which prevents the AC from doing its job. The problem may arise as a result of dirty air filters, a malfunctioning fan or a refrigerant leak. Air filters should be changed at least once every three months. If you have pets in your home or someone suffers from allergies, change your filters more frequently. Another common reason for not cooling is a dirty outdoor condenser. Your AC condenser is responsible for heat exchange and it is located outside at the mercy of the natural elements. Over time, dirt and dust can accumulate on the outdoor unit. It may even be blocking the airflow necessary for proper cooling. You can avoid this problem by keeping the area around your outdoor unit clean and devoid of bushes and trees. It could be that you may have a refrigerant leak. If you have a refrigerant leak, your AC will run but not cool. In fact, it could even make your home feel warmer than usual. This is because the refrigerant is responsible for absorbing heat from your indoor air and releasing it outdoors. A lack of refrigerant will cause these heat-transferring abilities to be lacking. Signs of a refrigerant leak include ice buildup, decreased cooling and hissing sounds from your unit. If you suspect a refrigerant leak, contact us for repairs immediately. This is not a do-it-yourself job as it requires special equipment and training to diagnose and repair.

Why is my AC so loud?

Humming noises? Typically, humming noises are not indicators of serious issues with your AC. A humming noise could be due to vibrations of loose parts, such as a panel on your AC coming loose, motor blades, fan blades, or refrigerant piping. Some loose parts in your AC can be harmless and easily tightened or put back into place, whereas other parts coming loose can be a more serious problem. Any loose parts can turn into greater problems if not taken care of. Banging noises? A broken or detached part will make a banging noise that sounds like it’s coming from inside your unit. Parts that could be broken or detached include a piston pin, connecting rod, crankshaft, an unbalanced internal blower, or a number of other internal parts. If a part of a compressor is broken or detached, it’s very likely the compressor will need replacing. Whirring sound? If you hear something that sounds like a helicopter flying overhead, it’s commonly due to a malfunctioning fan in the internal AC or external AC. Malfunctioning fan blades can be ones that are out of place, spinning, or hitting something they shouldn’t be. Whatever the sound maybe, if you hear something out of the ordinary, it is best to get your AC system checked out by a technician. Don’t wait for something catastrophic to happen before calling.