Commercial HVAC Maintenance and Service

At O'Brien HVAC Services we understand that an Air Conditioning, Heating or Refrigeration system that is malfunctioning or broken can wreak havoc and impact your ability to conduct business effectively and potentially impact your bottom line! We pride ourselves in the fact that within hours of your phone call, O'Brien HVAC Services can be on site to diagnose and provide the best solution to resolve your HVAC/R problem. Our trucks are fully stocked with replacement parts to repair most HVAC/R related problems. If we are unable to make the repair during the service call we will promptly complete the job as soon as possible, even the same day!

A proactive approach to help avoid unwanted HVAC/R problems is by signing up with our Preventative Maintenance Agreements (PMAs) which are tailored to the specific needs of your business. With our, PMA plans our mechanics will visit your site and perform routine maintenance on all the HVAC/R equipment to ensure proper operation and peak performance. Sign up today and protect your equipment so you aren't surprised by an unforeseen breakdown. Don't wait for an emergency to contact O'Brien HVAC Services, call us today and help to prevent problems before they occur.

O'Brien HVAC Services, LLC is Locally owned and operated and proud to have over 25 years of experience in the HVAC/R trade. We are ready to assist with the sales, service, and installation of the HVAC system that will best meet the comfort needs of your home or business. We provide free estimates for system replacements for all Commercial customers. Our technicians are ready to diagnose and correct any of your heating and cooling concerns promptly and competently! Expert emergency service is available 24 Hours 7 days a week, 365 days a year.

HVAC Service

At O’Brien HVAC we service all makes and models of HVAC/R equipment, both residential and commercial. We strive to diagnose and perform the necessary repairs right the first time eliminating down time and restoring your home or business back to a comfortable environment.

HVAC Maintenance

At O’Brien HVAC we recognize the importance of maintaining your HVAC/R equipment to ensure its efficiency and longevity. We offer comprehensive maintenance packages for your home or business that helps protect your equipment from costly repairs and unnecessary breakdowns.

System Replacement

At O’Brien HVAC we offer very competitive pricing on HVAC/R system replacements. With the ever-changing technology and higher efficient systems in the marketplace, we can help you determine whether or not a system replacement makes more sense than putting more money into your existing system.

Installations

At O’Brien HVAC we can perform new HVAC/R system installation per code. We provide the necessary Manual J for proper equipment sizing so you can rest assured your investment will provide many years of comfort to your home or business. We also install complete duct systems per code for residential and commercial properties.

air conditioners
heat pumps
gas furnaces
ductless mini-split systems
boilers
water heaters
thermostats
humidifiers/dehumidifiers
air cleaners/purifiers
packaged roof top units (RTUS)
exhaust fans
server room ac systems
commercial walk-in freezer and refrigerators
commercial medium and low temperature grocery cases

our customers
love us!

see all testimonials

"We had several quotes to replace our HVAC system, hands down the best price and awesome, quick installation in the middle of a heat wave. Customer for life! "

-David, Pasadena

"The repairman was prompt, courteous and very knowledgeable. He explained everything in detail and gave me helpful tips on maintaining my unit. "

-Chris, Odenton

"Reliable service and very reasonable prices. "

-Mike, Severn

"I placed an emergency heating call, and O'Brien HVAC was quick to respond and resolved our heating problem. THANK YOU! I am now a PMA customer. "

-Christine, Crofton

"Quick response and fixed our Walk-In Cooler during the service call. "

-Dan, Annapolis

recent blog posts

02.23.2019

O'Brien HVAC launches all new, fully-responsive blog!

Interested in our Services?

If you are dealing with a problem with your residential HVAC system or you are ready for an upgrade to your outdated or inefficient system, contact us for assistance today. An experienced technician will promptly come out to either repair or help decide if it's time to upgrade your system and return your home to a comfortable temperature once more!

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commercial services