About Us

TriState Home Services is a 3rd generation full service heating, cooling and plumbing contractor founded by Michael and Steven Norwood (former owners of Wachter and Norwood, Inc.) as well as Bert Miskell (formerly of American Residential Services).

Combined, our founders have over 100 years in the industry! 

TriState is here to help with all your heating, cooling, plumbing, electrical, and alternative energy needs. We take our responsibility to the community seriously and take pride in offering quality service and competitive prices throughout the majority of Maryland, Virginia, Pennsylvania and West Virginia.

Voted Best of  Frederick! Recognized locally for our skilled staff, our extensive knowledge and experience, and our friendly customer service.

We're Here for You!

We are recognized locally for our skilled staff, our extensive knowledge and experience, and our friendly customer service. We go above and beyond to ensure our customers are satisfied, and that the project is complete, correct, and cleaned up before we leave.

Our crew is certified, licensed and insured, so you know that you’re protected, and receiving quality, professional service.

We understand the importance of treating your home as our own and pledge to respect both your time and your home. From the moment you contact us, we’ll work with you to make sure all your needs are met. We know that a system failure in your home can be stressful, expensive and messy, and we’ll work hard to fix the problem as quick as possible.

We invite you to meet our team of skilled installers and technicians at this link.

Don't Take Our Word For It!  See What Our Customers Are Saying

    Just moved into a historic townhouse and my 13-year-old mini-split system died within 2 weeks of moving in and required a replacement. TriState provided, by FAR, the best price while also offering the highest end system PLUS they provided the best financing (via GreenSky). The installers were professional and did a really great job. Ultimately, TriState blew away the competition on price, timeliness of the installation, system quality, and financing.

    Kevin K.

    Service Technicians, Matthew and Shane installed our new HVAC system today (in 94 degree weather🥵!) and I can't say enough good things about them and their work. They are friendly, professional and updated me where they were in the process every step of the way. They were very knowledgeable and did not mind answering my questions about the new system. There was absolutely no mess of any kind left behind. Much appreciated! I highly recommend these two service technicians. They made a miserable situation more pleasant. Thanks, guys! A+

    Mary A.

    John has performed maintenance on our furnace for several years. It is technical work and his competence is impressive. He is knowledgeable, informative, and effective. And he’s also a really nice guy. We have been very satisfied with his service and because of the complexity of this high-efficiency system, we are hoping to have John do the maintenance indefinitely!

    Rita C.

    We just had our whole air conditioning system replaced by Tri-state and couldn’t be happier. From start to finish everyone was super honest and professional. Fast service and a great system for a great price. We wouldn’t go anywhere else.

    Jesse S.

    Service agent was professional, courteous, took his time to do the service and provided insight and guidance to us. He also took the time at the end of the service call to ask us if there were other questions. It was a great experience.

    Francesca B.

    I had a great experience with TriState. First, they do everything, which is always good to get the complete job done quickly and efficiently. Second, the customer service was phenomenal, from Rafael patiently helping me understand all that needed to be done for our energy efficiency needs, to the customer service team helping file the rebates for Pepco and Washington Gas. I love that they guarantee the Pepco rebate by deducting it from the bill right at the start-- no one else does that. Finally, the installation team went above and beyond to get it right and was very professional.

    Tina A.

    They know what they are doing, clean up after themselves well and have an apprentice program. They adhered to COVID safety standards and wore masks when speaking with us outside. TriState has reasonable prices and responds quickly to your questions/concerns or issues with your HVAC.


    TriState is solid. They care, they are prompt and are competent. They are responsible and will follow through. Our calls are attended to, with callbacks and emails, and they arrange technicians quickly. Dan was here today, following up, and he’s a good representation of the company. He knows a lot and doesn’t give up when looking for solutions. Happy with the service!


    Install: Garrett, Dustin, and Jay were quick, efficient, and performed clean install work in our 70 year old house on Day 1. They were respectful of us requesting to keep pets isolated even with them needing access to extensive areas of the house.

    Duct Cleaning: Derrell & Jace were also respectful, open to sharing information with us, and quick. Duct cleaning involves every room of the home but they worked well with us during my wife and my work-from-home arrangements.

    Duct Sealing: Derrell & Charles were extremely quick with the duct sealing and were willing to discuss and share details of the Aeroseal process.

    I would, and have since our install, recommend(ed) Tri-State to friends and family since we've had the job done!

    Jake S.
Why Choose  TriState?
  • Free Estimates on Major Repairs & Projects
  • Certified, Licensed & Insured
  • On Site In About an Hour
  • Servicing Residential & Light Commercial Properties
  • After Hour Services Available
  • Experienced, Knowledgeable & Courteous Technicians
Ready to Get Started?
Call 301-969-9353 or Fill Out the Form Below!
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