• 240-273-4879
  • Five Star Guarantee
  • Year Established: 1987
  • License Number(s): MD HVAC 02-47186
  • 24/7 Emergency Service
  • In Business 20+ Years
  • General Liability Insurance
  • Licensed
"For over 35 years, Horizon Services has delivered expert heating, cooling, and plumbing service for homeowners in your neighborhood. From money-saving offers and same-day service to industry-leading guarantees, we're committed to your complete comfort. Call anytime for 24/7 service, including nights, weekends, and holidays with no emergency fees! Our highly trained technicians respect your home with drop cloths and booties. They respect your time by arriving on time, or your service is free! Our team also respects your wallet, with up-front pricing and warranties you can count on. Call today or visit us online to experience top-rated plumbing, heating, and air conditioning by your Horizon Services team."

Dave Geiger, Founder & Chairman
Principal Owners / Key Managers
Dave Geiger, Founder & Chairman
Five Star Guarantee
We stand behind every Five Star Rated company with Our Guarantee. We've done the research for you and identified the best home service pros in your neighborhood.
Homeowner Reviews

“The staff is always pleasurable and overly accommodating.”

“I would like to recognize the service technicians or plumbers for their exceptional service.”

“The people that answer the phone were exceptional.”

“They met my expectations with how fast they got the job done. They were out the next day.”

“The service technician was outstanding.”

“I'd like to recognize each individual that has come to provide service. They're patient with me, answer questions, and are helpful.”

“Horizon meet my expectations with the stand pipe.”

“The technician was very knowledgeable and patient”

“The customer service side was satisfactory.”

“They met my expectations by coming on time.”

“They have great customer service.”

“If anyone asks me, I would definitely recommend them.”

“Their customer service has been superb and they were courteous and knowledgeable.”

“I would like to recognize whomever the previous person was. They did a remarkable job!”

“I have no complaints, they did a very good job!”

“They met my expectations in all areas of the entire project.”

“The technician explained everything that needed to be done and addressed other problems!”

“I would like to recognize Shawn Monroe for his exceptional service. He is excellent. The last few times, I have requested that he do the maintenance on my systems. I am very pleased with him.”

“They met my expectations.”

“Regarding any area they met or exceeded in, the unit has been great.”

“They didn't meet my expectations.”

“Jovan Simpkins and Josue Sotoj were very professional and knowledgeable. Completed all work better than satisfactory.”

“tech was more interested in selling me a product then comp. doing work”

“Called to use your winter/summer special pre-season check. Turns out Horizon won't check out combination former oil furnace and gas-fired supply using a separate burner. Others do this so I don't understand why Horizon does not.”

“ALL of our dealings with Horizon have been terrific. They installed our new heating/cooling system several years ago and have profided annual checkups before each heat and cooling system since. The folks who service our equpment are always top notch, friendly and considerate of our needs.”

“Furnace installation well done.”

“I was impressed with your companies customer service in regards to picking up the phone when I really needed someone's help, and you are able to dispatch someone to my house normally on the same day, which I think is outstanding.”

“The technician was very knowledgeable and helpful and gave us great customer service would definitely recommend.”

“The issue was water in the basement when someone showered upstairs. The tech did clean out the drain well, bit failed to notes that the caulking around the tub had cracked off, which would've been a much less costly solution. Worse then that, he tried to hard sell me a new water heater.”

“I was thoroughly satisfied with the products and workmanship for my HVAC replacement and my hot water heater replacement.”

“All their staff”

“The service technician was helpful, knowledgeable and trustworthy.”

“Every easy to get someone to come out to do the work I needed done”

“Extremely professional”

“Great service. Technicians explain everything before they do anything so you can decide if you want to have it all done or just part of it.”

“no, but no problem with prior service.”

“I called to take a look at my heat pump not working. There were error messages and you charged me a few hundred $ to replace a board. It still didn't work, checked it again and said the freon was leaking. Another few hundred$ to replace freon. Long story short, you believed it needed to be replaced and had a sales guy come out to try to sell me a $10 grand unit. I declined despite the usual pressure. Had another company come out and found it was a defective freon cap. Replaced it and all is working. I tried you because you looked reasonable but will never call again nor recommend.”

“I would never recommend Horizon to a friend. They were horribly organized. It took over 4 months to hook up a replacement stove. They did not have to run any new gas lines, they just had to swap out an old stove for a brand new stove and setup a county inspection. This process took about 4 month, required at least 10 appointments (some of these appointments were canceled. This took at least 5 actual house visits. I had to reschedule my days multiple times for them to come out. This is the worst service I have ever had by a home repair person. They did give me 1/2 of the install.”

“I have been very pleased with my plumbing services”

“Tech. very good, arrived on time. Very professional explained why maintenance plan is best approach for furnace operation.”

“Mike was very helpful”

“Everyone”

“service tech was very friendly and professional explained every step of job after job leaving with a smile and thanks for chosing Horizon”

“If possible all customers should obtain more than one estimate for any potential plumbing work.”

“I love Horizon and thought so highly of this company until I tried to schedule my yearly summer maintenance in end or April beginning or May and my appointment is September?.. after summer?!?? Ridiculous service!”

“Efforts to communicate my dissatisfaction were ignored- I would say this was ?exceptional? since even some of the worst companies would have acknowledged my message and at least apologized.”

“I'd like to recognize the plumber who came out to my house for his exceptional service.”

“I do not remember the name of the guy who came to service my house. I would like to recognize him. He was very good and even wore those little foot booties to make sure he did not track in any dirt or anything.”

“The person that initially took my call”

“They were fast and got the job done. They did a great job.”

“They do a great job.”

“THey exceeded expectations with the basement.”

“I would like to recognize the guy who came. I would have to look up his name because it was a year ago. He was awesome.”

“They are too high.”

“They met my expectations because they were professional, courteous, and timely. I was well pleased.”

“When he replaced the pipes and explained to me the problem.”

“The company met my expectations with the workmanship, their promptness and the work was great.”

“I would like to recognize my installer for his exceptional service. He gave me the best value for my dollar.”

“Horizon Services meet my expectations in all areas. They worked on two heat pumps for me and I had a consultation for plumbing.”

“I was very satisfied with the results and pricing. It's good to have a hot water heater again. The plumber was very knowledgeable and answered any questions I had.”

“I'm satisfied with the work.”

“They got the job done in a timely fashion.”

“The plumber was great to talk to, was on time, knew what he was doing. I cannot say anything bad about him. If I had to use them again, I would ask for that gentleman again!”

  • 240-273-4879
  • Five Star Guarantee
  • Year Established: 1987
  • License Number(s): MD HVAC 02-47186
  • 24/7 Emergency Service
  • In Business 20+ Years
  • General Liability Insurance
  • Licensed
"For over 35 years, Horizon Services has delivered expert heating, cooling, and plumbing service for homeowners in your neighborhood. From money-saving offers and same-day service to industry-leading guarantees, we're committed to your complete comfort. Call anytime for 24/7 service, including nights, weekends, and holidays with no emergency fees! Our highly trained technicians respect your home with drop cloths and booties. They respect your time by arriving on time, or your service is free! Our team also respects your wallet, with up-front pricing and warranties you can count on. Call today or visit us online to experience top-rated plumbing, heating, and air conditioning by your Horizon Services team."

Dave Geiger, Founder & Chairman
Principal Owners / Key Managers
Dave Geiger, Founder & Chairman
Services Offered
Furnace installation, repair, and maintenance
Heat pump installation, repair, and maintenance
Air conditioning installation, repair, and maintenance
Thermostat installation, repair, and maintenance
Plumbing inspections, repairs, maintenance, and installation
Sewer and drain services
Indoor air quality solutions, installation, repair, and maintenance
24/7 emergency service
Insurance
General Liability & Workers' Compensation
Warranties / Guarantees
Parts-and-labor warranties on installations
Two-year guarantee on repairs
One-year drain clearing guarantee
Up to a ten-year guarantee on water heater installations
Recognitions
A+ Rated and Accredited with the BBB