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Approved Pro

TriState Home Services

Heating and Air Conditioning Service, Plumbing, Wells and Pumps,

About us

If you are looking for a HVAC Contractor, a Plumbing Contractor, or an Electrical Contractor to provide you with great service, you've come to the right place. We provide heating services, air conditioning services, plumbing services, and electrical services to our customers in Frederick and the surrounding Counties, the Pan Handle of West Virginia, and Northern Virginia, from our offices located in Frederick MD. With 3 generations of experience in providing heating, air conditioning, plumbing, and electrical services, we are dedicated to providing the best possible products and services for you, and your family.

Business highlights

Emergency services offered
76 years of experience

Services we offer

Heat Pumps, Air Conditioners, Gas Furnaces, Boilers, Pool Room Dehumidifiers, Energy Recovery Ventilators, Roof-Top Units, Air Filtration System, Electronic Zone Control Systems, Radiant Floor Heating & Snow Melting Systems, Plumbing, Water Heaters, Drain Cleaning, Water Quality, Home Energy Evaluation/Audit, Insulation, & Basement Waterproofing.

Amenities

Eco Friendly Accreditations

Yes

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • American Express
  • Financing Available
  • Check
  • Visa
  • Discover
  • MasterCard
Reviews
4.7181 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
86%
4
8%
3
2%
2
1%
1
3%

Filter reviews by service

Showing 1-25 of 181 reviews
Randy W.
May 2025
5.0
Plumbing
Yes, I recommend this pro
$2,700
Great service very prompt and easy to work with.

STUART K.
Mar 2025
1.0
Heating and Air Conditioning Service
Tri State was prompt—they had a tech out within hours when our 20-year-old HVAC broke down. The repair estimate was $800–$1,200, and they also sent a salesman, Mike, to discuss replacement. Mike was courteous and knowledgeable, but, when we sat down to review the quote, the sales process turned into a bad car-buying experience. They started at $34,000, then "discounted" to $29,300—$10,000 -$12,000 higher than other quotes for the exact same unit. Even factoring in their warranty, they remained $8,000–$10,000 overpriced. Mike also claimed they were a four-generation family-owned business, but I later found out they’re owned by Sila Services, a Goldman Sachs private equity firm—which feels misleading. To their credit, canceling was easy (though I hadn’t signed a financing agreement or put money down). Bottom line: Get multiple quotes. Their pricing was excessive, and the sales tactics felt manipulative.

Carol S.
Sep 2023
1.0
Plumbing
$412
If I could give them 0 stars I would, I was googling products to unclog my kitchen sink when I saw an ad for $49 to unclog drain in Eldersburg, I was in Eldersburg at the time. I called to make an appointment, when I gave the young lady my address, she said I don’t see the special in your area, but I’ll honor the coupon. I asked if there were any hidden fees? she said NO, I said unclog for $49 that’s great! She nor the ad indicated the $49 was just a diagnostic fee. The plumber came out and says that’ll be $412. My kitchen is being renovated so there is no sink, just the pipe for the snake. I called Tristate and spoke to Diane who listened to my rant and was very apologetic. Extremely over priced!!

TONYA K.
Jan 2023
5.0
Plumbing
Yes, I recommend this pro
$376
The gentleman was on time and very professional. He was able to fix the leak in my basement and also fixed the water pressure to my kitchen sink in timely and affordable fashion. Will call again if needed. Thank you again!

Dave R.
Aug 2022
4.0
Plumbing
Yes, I recommend this pro
Went well, plumber did great job

Joseph D.
Oct 2020
5.0
Heating and Air Conditioning Service, Air Duct Cleaning
Yes, I recommend this pro
$4,000
Donny and Phill arrived on time installed floor protection and shoe coverings and did an excellent job in far less time than I expected. I would recommend Tri State for installation and maintenance of HVAC systems.

John K.
Jul 2020
5.0
Plumbing
Yes, I recommend this pro
$300
It was excellent. I would highly recommend this company.
Response from TriState Home Services
"Thanks so much for your feedback!"

George L.
Jul 2020
2.0
Plumbing, Air Duct Cleaning
$3
The estimator based labor and materials on complete removal and replacement of problems rather than simple fixing the existing hardware. The result was an estimate of hundreds of dollars and our having to get the parts. A second estimator was called and the most difficult faucets were “fixed” immediately with the tightening of a packing nut and rearranging an internal rubber washer. Labor and travel cost of obtaining parts for another faucet were avoided by delaying the repairs until such time he was already at the plumbing supply store for other jobs. The final cost was neatly 1/7 of the first estimator. The first estimator had a better warranty and was very efficient, Professional and timely. The second estimator was more like a member of the family

Joel T.
Jun 2020
5.0
Heating and Air Conditioning Service, Plumbing + 5 more
Yes, I recommend this pro
$600
Excellent job as always.
Response from TriState Home Services
"Thank you! So glad to hear it!"

Amanda E.
Jun 2020
5.0
Heating and Air Conditioning Service, Air Duct Cleaning
Yes, I recommend this pro
$9,700
Brad was great explaining everything from the work that needed done to the heat pump units themselves. I liked that he called prior to his arrival with an ETA . Did do a free estimate with us. We decided not to go with Tristate in the end and went with a small local business instead but Brad was super friendly and helpful.
Response from TriState Home Services
"Hi [Member Name Removed]! Thanks so much for your honest feedback! We hope to have the opportunity to work with you again in the future."

Julie B.
May 2020
5.0
Electrical Service
Yes, I recommend this pro
$500
The contractor did a quick but thorough job repairing each electrical outlet and provided advice on how to maintain them properly. The ring doorbell installation was quick and neat. The contractor wore a face mask at all times and we had a completely contact-less visit (including the bill payment - we were able to "sign" via our own devices). This company was a pleasure to work with.
Response from TriState Home Services
"We're so glad to hear this [Member Name Removed]! Thank you so much for your review!"

Rafael C.
Jan 2020
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
Outstanding as always
Response from TriState Home Services
"Wonderful! Thank you, [Member Name Removed]!"

Butch C.
Jan 2020
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
I have a contract with the company to service my HVAC twice a year
Response from TriState Home Services
"Glad to hear it!"

Joseph C.
Jan 2020
5.0
Heating and Air Conditioning Service, Plumbing
Yes, I recommend this pro
$8,000
Replaced air conditioning unit. Super nice brought us portable a/c units until installation was completed. Very professional and easy to deal with.
Response from TriState Home Services
"[Member Name Removed], this is so wonderful to hear! Thank you so much for your review."

Van H.
Jan 2020
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$100
Very good job !!!!
Response from TriState Home Services
"We're happy to hear that. Thank you!"

Morris C.
Jan 2020
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
Work went per plan. Skilled technicians knew their product and had experience with installation. Clean neat job that was done right the first time. Removal of the old unit and air handler went as planned.
Response from TriState Home Services
"Thank you so much! We appreciate your feedback!"

Judy F.
Jan 2020
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
Wonderful. They are always professional !!
Response from TriState Home Services
"Thanks so much, [Member Name Removed]!"

Anthony T.
Jan 2020
5.0
Heating and Air Conditioning Service, Plumbing
Yes, I recommend this pro
It went great
Response from TriState Home Services
"We're glad to hear it!"

Keith P.
Jan 2020
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
Extremely competent and thorough
Response from TriState Home Services
"Thank you!"

Noreen M.
Sep 2019
5.0
Plumbing
Yes, I recommend this pro
I recently had a crack in my acrylic bathtub and called TriState Home Services to replace the tub. We decided to replace it with the same soaking tub to avoid any unnecessary damage to the ceramic tile we put in a few years ago. Bryan, the plumbing specialist at TriState did just that! He did an awesome job on this project. I also want to say how impressed I was with their customer service department, particularly with Megan, in her quick response to my emails along with making me feel so comfortable throughout the whole job.
Response from TriState Home Services
"[Member Name Removed], Thank you so much for your review. We so appreciate you taking the time to leave us some feedback. We are thrilled to hear our team kept you feeling at ease throughout the process of your home project! We will be sure to pass your notes on to our managers, as well as to Bryan and Megan."

Sheri O.
Sep 2019
1.0
Heating and Air Conditioning Service
Tristate Home services is extremely unprofessional. I called to schedule and appointment for Wednesday for an active water leake in the basement. When I had the tenant call to confirm the time (as a courtesy) Tristate said there was no appointment. The tenant made an appointment for Friday. TRISTATE WAS A NO SHOW ON FRIDAY. I called Tristate to see what happened, and said that they would not service my home because I said that I would not be able to give them a positive review due to them cancelling appointments and their unprofessional actions. It appears If they do something wrong they refuse to take responsibility and try to silence you. I would call this unprofessional.
Response from TriState Home Services
"With all due respect, there are several factual corrections we would like to make. First and foremost, an appointment was never confirmed for either Wednesday or Friday. When you called to request service, you were told what our next available openings were. You asked us to confirm with your tenant. We called your tenant, they did not answer, and their voicemail was full. Your tenant then called us, and they requested a Friday appointment. You then called us, berated our customer service staff, and made threats. TriState’s management made the decision to not provide service based on the hostile/threatening phone interaction. We then called your tenant to notify them. They did not answer, and their voicemail was full. We then called you, the landlord. You did not answer, and your voicemail was full. To use your words, we would call this unprofessional. We absolutely hate having to make a “do not service” decision, however after reviewing all pertinent information, including the recordings of all of the calls referenced above, we believe that it was the right decision in this case."

Joe R.
Sep 2019
5.0
Heating and Air Conditioning Service, Plumbing
Yes, I recommend this pro
$10,000
Darren, the Salesman, was extremely knowledgeable and helpful. Very low pressure sale tactics, but laid out all of the options for you. The crew came and finished installing a new heat pump and heat exchanger in a half day and then another individual returned the next day to install a new water heater. Great communication and attention to detail every step of the way! Would highly recommend!
Response from TriState Home Services
"Thank you so much for your review, [Member Name Removed]!"

Harold H.
May 2019
5.0
Heating and Air Conditioning Service, Plumbing
Yes, I recommend this pro
$49
It went well. Serviceman was most professional, skilled and customer friendly.
Response from TriState Home Services
"[Member Name Removed], Thanks so much for your review!"

James M.
Mar 2019
1.0
Heating and Air Conditioning Service
$600
Heater was originally giving error code. I requested to be contacted by tristate (got responses from other companies so I know it was working) and sent error code to them. Was not contacted. Called them finally after snow hit and they said they never got my info so I'd have to wait because it was busy from snow. No attempt to remedy the non-response and put me at the back of the line. I made sure I gave all the info about the model of heater and error code to person on the phone and he said they don't worry about all that and the tech would get all that info. When the tech finally came, he said to tell the people on the phone the error code because it helps them so obviously there are internal communication issues that need to be addressed across several mediums. Tech replaced the part and it worked for a little while. Error code and new error code came back so I called them again and passed the error code to the phone person again. Tech shows up again and says he wasn't given the error code and he couldn't get the heater to repeat the problem so he made some adjustments and charged us more money. We still have problems with the heater but won't call because they are charging for each service call as a new problem even though it's all related to the same error code when I first called. When the heater broke as it normally does, I opened the covers to my furnace to find a disconnected hose and tape over the door switch that should have been taken off when the tech left because of safety. It seems like the company doesn't really have a philosophy of taking ownership of any problems and are really more of a group of people who kick the can down the road for the next tech to deal with. I only say this because the way I run my business. If I charged someone to fix a problem and their problem still isn't fixed, I couldn't sleep at night if I just charged them again to not fix the problem because of my ethics and it's a shame that more local businesses are treating their neighbors like this. Go with a smaller company that cares about their neighbors.
Response from TriState Home Services
"[Member Name Removed], We sincerely apologize for your less-than-ideal experience with TriState. It is never our intention to leave problems unfixed or to charge a customer for incomplete work. You should not have been charged a travel fee the second time if the visit was for the same issue, as stated in our call with you. It seems we may have encountered a bit of miscommunication among our staff, as well as with you, regarding the specific issues your system was having, and for that we do apologize. According to our records, the system was working properly when the technician left your home the second time. We were unaware that the problem resurfaced. Had we known, we would have, of course, come back to have another look, free of charge. If you feel you have been charged unfairly, please give our office a call at (888) 343-9768 so that we can make things right. We appreciate your business, and your patience in resolving this issue."

Arthur B.
Mar 2019
1.0
Plumbing
I called and spoke to Tori at their office, and after initially saying that they could provide the service I needed, she put me on hold for a moment and came back and said they would no longer provide service to me because of the previous review I gave where I was upset about them not honoring a coupon. I was very surprised because I gave them A for quality because I was happy with the workmanship but I was unhappy with their inability to honor the coupon they sent me. It seems that they are black listing anyone that doesn't give them a glowing review on Angie's List. I was actually trying to give them my business and they refused to help me because of my review. They even sent me a brochure subsequent to my complaint last year thanking me for my recent business with me, so why would they not want my future business?
Response from TriState Home Services
"Thank you for your feedback. TriState does not refuse service due to negative reviews. The difficult decision to discontinue a relationship with one of our customers is made based upon a number of factors, primarily hostile/aggressive behavior towards a technician or staff. This is, thankfully, extremely rare. We wish you all the best in your future endeavors."
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Showing 1-25 of 181

Licensing

Bonded

Insured

Licensed*

Trade License Number

12287

Trade License Locale

MD

Trade License Authority

Maryland State Board of Master Electricians

Trade License Expiration

03/06/2023

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

TriState Home Services is currently rated 4.7 overall out of 5.

Monday: 7:30 AM - 4:30 AM Tuesday: 7:30 AM - 4:30 AM Wednesday: 7:30 AM - 4:30 AM Thursday: 7:30 AM - 4:30 AM Friday: 7:30 AM - 4:30 AM

TriState Home Services accepts the following forms of payment: American Express, Financing Available, Check, Visa, Discover, MasterCard

Yes, TriState Home Services offers free project estimates.

Yes, TriState Home Services offers eco-friendly accreditations.

No, TriState Home Services does not offer a senior discount.

Yes, TriState Home Services offers emergency services.

Yes, TriState Home Services offers warranties.

TriState Home Services offers the following services: Heat Pumps, Air Conditioners, Gas Furnaces, Boilers, Pool Room Dehumidifiers, Energy Recovery Ventilators, Roof-Top Units, Air Filtration System, Electronic Zone Control Systems, Radiant Floor Heating & Snow Melting Systems, Plumbing, Water Heaters, Drain Cleaning, Water Quality, Home Energy Evaluation/Audit, Insulation, & Basement Waterproofing.