Reviews


“Great work! Diagnosed problem , ordered part, fixed the problem. Happy to have a working heater in anticipation of the cold nights ahead. Thank you!”
- Arline G.

“Dennis was very polite, knowledgeable and professional. He was very careful to keep the house clean as possible and cleaned up any mess made. He did a very good job making sure the sewer line was clear and would stay clear. Dennis did an excellent job explaining what he was doing and that the sewer pipe was in pretty good condition considering how old it was, Dennis did a fabulous job and I would highly recommend him and Jos Frederick & Sons.”

- Alfred S.

“As always Donovan does an exceptional job. Explains changes or any problems. Friendly and informative. We request him all the time. Joseph Frederick s company from office staff to service technicians are wonderful and attentive. Great to deal with people who know and do their jobs so well.”

- William T.

“The work was done efficiently & for reasonable cost + they looked at our main water line – the valve is old & hard to use. They put another valve in upline so its easy to turn the water to the house off now & its safer.”

- Marti F.

“Don was knowledgeable, professional and friendly and determined the issue with my AC in short order. He also completed a thorough investigation of my furnace in the basement. He found no issues, but also provided me some tips and information that will come in handy in the future. While down in the basement with Don I had mentioned problems I was having with my sump pump. No problem! Without a second thought, Don went right to the sump pump, identified the problem immediately and suggested a solution. Jos. Frederick & Sons are now scheduled to replace the pump and repair a section of pipe tomorrow morning!

I bought an 80 yo home two years ago. Jos. Frederick & Sons were highly recommended by my realtor, and I am delighted with their service so far.”

- Edward R.

“Dennis was pleasant and very skilled. He solved our problem quickly. Thanks to all the great techs that have kept our home running well. Thanks also to Sarah who got us on the schedule quickly.”

- Jim and Phyllis A.

“I called this morning about a gas leak at a client's furnace. Gabriel was sent out a short time later & located the 2 small leaks & repaired them in good order.
Excellent service & excellent timing. Thank you.”

- Marti F.
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Need HVAC Service?

Contact the experts at Joseph Frederick & Sons.

Call us at 302-994-5786!