For more than 80 years, we have provided outstanding and reliable heating system maintenance to thousands of residential and commercial customers around Maryland, Northern Virginia, Southern Pennsylvania, and West Virginia.

So, why do people choose us over the other guys? Here are a few good reasons:


As one customer said, “[I] appreciated that they were not in a rush to get it done. [Warner Service] checked everything very well and solved the problem."

That is our guarantee -- every time.

Our HVAC technicians receive continual technical and customer service training to remain current on the latest equipment and provide the best heating service experience.


In short, Warner Service is a bunch of smart, good guys that are ready to help you out in a way that makes the most sense for the heating problem, your wallet, and the bottom line. We are not here to push our latest product on you, or to charge you more than necessary.

Our team is here to break the negative stereotype behind contractors because we genuinely care about you and your home or business. We treat the space like it’s our own.


Did you know that almost 95 percent of completed satisfaction surveys said that the work performed by our techs was “excellent” or “good”?

This is because we strive to produce quality every single time by partnering with only today’s best companies, including Trane, for the highest quality heat pumps, furnaces, and more.


Our attention to detail and commitment to providing the highest degree of service lends itself to a valuable interaction between our techs and their customers, who have routinely quoted “fair pricing,” as one of Warner Service’s best qualities. By combining all of these traits, the value of Warner Service’s work is second to none.


Our professionals bring a high level of experience and great problem-solving skills to each job site. They are knowledgeable when it comes to fixing your home or business’ heating problems, including issues with:

  • Heat pumps
  • Forced-air furnaces
  • Radiant heat systems
  • Hot water and steam boilers
  • Humidifiers and wireless thermostats
  • Air duct cleaning
  • Zoned heating
  • Electronic and HEPA air cleaners
  • Energy recovery ventilators

We also provide a biweekly blog, checklists, and more from our experts, who offer advice and how-tos for the average homeowner and business owner.

But don’t take our word for it. If you want to find out why people really choose Warner Service, check out these exclusive results and testimonials from our most recent satisfaction surveys. If you are already convinced to use our techs, contact us to fix your next heating problem by clicking here.

For those who would rather try to diagnose the heating problem before calling the pros, download our HVAC Maintenance Checklist to help you narrow down the potential issues:

Download Our HVAC Maintenance Checklist