Testimonials – Air Conditioning Articles

Air Conditioning Repair in Wilmington, DE 19805

February 21, 2024

“I have been a customer for 5 years now. This company is excellent. They make sure the job is done right. Their workmen are competent, knowledgeable, and courteous. When I have an issue with plumbing, the air conditioning equipment they installed, or anything else in my home, it is Joseph Frederick and Sons that I…

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HVAC System Maintenance in Hockessin, DE 19707

July 15, 2023

“Donovan came on time and with the repair part. He diagnosed the problem over the phone. He finished the work in about 30 minutes. Excellent job!”

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AC System Repair in Greenville, DE 19807

July 13, 2023

“I had an AC issue and Donovan H from Jos Frederick and Sons did a great job at diagnosing the problem and fixing it on the spot. Very impressed by his knowledge and professionalism.”

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