Reviews


“Andrew and Cameron were very professional and cleaned up as they worked. They did the job in a timely fashion. I would definitely use them again for any other electrical work.”
- Peggy M.

“Lucas arrived on time,; he was very courteous, neat and extremely patient when answering my questions. He emailed me an invoice in a prompt, timely manner..I even told him I wanted him , not a different technician , to continue servicing my air conditioner and furnace.”

- Arlene B.

“Lucas arrived on time,; he was very courteous, neat and extremely patient when answering my questions. He emailed me an invoice in a prompt, timely manner..I even told him I wanted him , not a different technician , to continue servicing my air conditioner and furnace.”

- Arlene B.

“I’m thankful to have Jos. Frederick & Sons involved with all necessary things I require at times – all is explained and they work well doing whatever is necessary. I have had them working on all items I require – under plumbing, electrical, replacement of items – Andrew and Cameron worked well and explained all during this job of today. Thank you
Kathleen F.”

- Kathleen F.

“Don was very friendly. He answered my questions and inspected the area in question confirming that all was safe. Frederick & Son has installed and has been servicing my heaters since 2005 and I have always been happy with their work.”

- Susan O.

“The work was done quickly and efficiently by professionals who were respectful, informed and skillful. It was a pleasure to have them do the repairs! I am grateful that I can count on Frederick’s for consistent quality and workmanship!”

- Cathy D.

Need HVAC Service?

Contact the experts at Joseph Frederick & Sons.

Call us at 302-994-5786!