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Call Us Today!
(209) 722-7463
Call Us Today!
(209) 722-7463


air conditioning installation
Q. What is the life expectancy of a heating and air conditioning unit?
A. 15 to 20 years, depending on how well the unit is taken care of.
Q. How often should I change the air filter?
A. Once a month.

Q. Should I have maintenance done on my unit?
A. Yes. You wouldn’t drive your car 100,000 miles without changing the oil. The same logic holds true for your home comfort system. Regular preventative maintenance is the best way to ensure trouble-free operation and peak performance. Pre-season maintenance is also important. It can help to avoid a system failure in severe hot or cold weather when you need it most, and it can also keep your energy bill from getting out of control.

Q. How often should I have maintenance done on my unit?

  • For a system that heats and cools: perform maintenance in the spring and fall.
  • For cooling only: perform maintenance at least once a year, before the cooling season.
  • For heating only: perform maintenance at least once a year, before the heating season.
Q. Should I have my ducts cleaned?
A. Duct cleaning is not generally necessary; please see what the EPA has to say about this:


Talk to Diana, and she'll get someone on it ASAP!  :)
Amanda Smith, a week ago

Really competitive prices. They were awesome!
Roberto Cazares, 4 months ago

Adam, Ken and the other techs have always provided excellent service for First Baptist Church of Merced.  We have 26 AC units for 6 buildings including  two 45 ton units on our Worship Center.  They service them regularly and provide repairs as necessary. They are very knowledgeable and professional in all their dealings.    In 2009 for my home in merced, they installed a new AC/Heating unit on my roof.  The service was great and the price was right.
Denny Hicks, 8 months ago

Honest people, that's what you find at Holl Sheet Metal. Great service at a fair price from experts in their field.
Wendy Lynn, last month

Contact Information

Holl Sheet Metal Inc.

3811 N. Highway 59
Merced, CA 95348
Phone: (209) 722-7463
Business Hours:
Monday-Friday, 7:30 a.m.-4:30 p.m.