O'Brien HVAC Service

O'Brien HVAC Services is a trusted leader in providing high-quality HVAC/R Service and Installation. Our mission is to ensure attention to detail, timely repairs, and to do the job right the first time. 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.

Our founder, Bill O'Brien, has been a business owner for over 16 years and has over 25 years of experience in the HVAC/R trade. As a United States Navy Veteran and father of four young men, Bill highly values every customer both residential and commercial. He has a Master's License in the HVAC/R trade in the state of Maryland and the District of Columbia.

Since starting his business, Bill has prided himself on performing every job with the highest integrity and has focused on providing honest, reliable, and affordable Heating and Cooling repair to local business and residential customers in the surrounding Maryland and DC area. He would be honored to help your business or home HVAC system achieve maximum efficiency, comfort, and longevity.

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

We're proud to offer 24/7 Emergency Service; In the heat of the summer, or the bitter cold of winter, a broken HVAC system can be a serious issue. With O'Brien HVAC Services, you can trust that we'll be there when you need us most.

Our Services

We provide a wide variety of RESIDENTIAL HVAC and COMMERCIAL HVAC Services. Some of the services we offer include:

• Heating and Cooling Installation
• Heating and Cooling Repair
• Heating and Cooling Maintenance
• HVAC Replacement
• HVAC Upgrade

Call now for more information about any of these services.

Our Customers Love Us!

We have built a strong reputation in the community by providing top-notch service and customer satisfaction. Our customers appreciate our prompt, reliable, and affordable HVAC services. Here's what some of our satisfied customers have to say:

• "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

O'Brien HVAC is proud to announce the launch of our newly designed, fully responsive website. O'Brien HVAC has over 25 years of experience servicing people just like you. We offer unequaled service, respect, and the correct products priced right. Our new website only continues to improve and expand upon the services we offer.