O'Brien HVAC Service

O'Brien HVAC Services is a leading provider of HVAC/R services in Maryland and the District of Columbia. Our company was founded by Bill O'Brien, a seasoned professional with over 25 years of experience in the HVAC/R trade. With a Master's License in HVAC/R in the state of Maryland and the District of Columbia, Bill is committed to providing high-quality services and installations to both residential and commercial customers.

Our Mission

Our mission is to be a trusted leader in providing high-quality HVAC/R services and installations. We value every customer and strive to provide the highest quality of service and to help provide a greater understanding of their heating and air conditioning system. We aim to accomplish this mission by ensuring attention to detail, timely repairs, and doing the job right the first time.

The O'Brien Difference

There are many reasons to choose O'Brien HVAC Services for your residential or commercial needs. We offer:

• Professional, licensed technicians
• Parts and workmanship guaranteed
• Prompt, reliable service
• Price guarantee before we start any job
• All jobs done right the first time
• 24/7 Emergency Service

We pride ourselves on providing fast and friendly service, reasonable prices, and a commitment to excellence. Our technicians are licensed, insured, and highly trained to ensure that your HVAC system is repaired or installed correctly the first time.

Our Services

We provide a wide variety of HVAC services, including:

• Residential HVAC services
• Commercial HVAC services
• 24/7 Emergency Service
• Residential and Commercial HVAC Installation
• Repair and Maintenance Services

Our Service Areas

We service the following areas:

• Anne Arundel County
• Howard County
• Prince George's County

Our standard zip codes include:

• 2013, 2030, 2141, 21043, 21051, 21053, 21074, 21082, 21093, 21102, 21104, 21111, 21117, 21120, 21128, 21131, 21133, 21136, 21152, 21155, 21156, 21161, 21162, 21163, 21204, 21206, 21207, 21208, 21209, 21210, 21212, 21215, 21219, 21220, 21221, 21222, 21224, 21227, 21228, 21229, 21234, 21236, 21237, 21239, 21244, 21286

Contact Us

If you are experiencing any issues with your HVAC system or are looking to upgrade your system, please do not hesitate to contact us. Our experienced and knowledgeable technicians are standing by to assist you.