Business ProfileHVAC Companies in Wilmington, Delaware
Joseph Frederick & Sons
Joseph Frederick & Sons
Based in Wilmington, Delaware, Joseph Frederick & Sons provides heating, cooling, plumbing and electrical services across the Delaware Valley. Its roots trace to a small plumbing business Joseph Frederick started in Brack-Ex in 1947.
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Business Highlights
- The company describes itself as a fourth-generation business.
- The company is family-owned and operated.
- It lists HVACR license HM-0000080, plumbing license PL-0000903 and electrical license T1-0004333.
Service Area
Bear, Brandywine, Claymont, Elsmere, Fairfax, Greenville, Hockessin, Middletown, New Castle, Newark, Newport and Pike Creek, Delaware; Kennett Square and Landenberg, Pennsylvania.
Active Business Listing
Joseph Frederick & Sons is one of 10 HVAC companies ProsGrade lists in Wilmington, Delaware.
Active
Public local listing
Listing details
12 services listed, including Air conditioner installation, maintenance and repair, Boilers and Ductless systems. Open weekdays, closed on weekends. 156 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How Joseph Frederick & Sons compares with the other 9 HVAC companies on ProsGrade in Wilmington, using public Google ratings and review counts.
- One of 10 Wilmington HVAC companies on ProsGrade.
Services Covered
12 services- Air conditioner installation, maintenance and repair
- Boilers
- Ductless systems
- Dual-fuel systems
- Gas furnaces
- Geothermal heat pumps
- Heat pumps
- Indoor air quality
- Oil furnaces
- Oil-to-gas conversion
- Radiant floor heating
- Zone control systems
Reviews
What customers say
Several customers describe the service as professional. One customer says Dave offered multiple options for a furnace and A/C replacement and that the installation was completed right the first time. Another customer reports that a technician arrived without the adapter needed to check refrigerant and broke a water-flow meter attached to the customer's hose without telling them; the customer says they expressed dissatisfaction to the technician but had not heard back from the company.
Customer Reviews
John Marine
Came out same day and installed a hot water heater. Great/ professional service. Would go with them again in a heartbeat
Mike B
Dave went the extra mile in providing multiple options for our furnace and A/C replacement. The install crew - Jake, Jake, and Omar - were among the most knowledgeable and well-trained techs I have dealt with. Everything installed professionally and right the first time. Highly recommended.
erin m
Gabriel was professional, had clear communication and is highly competent. We had an issue that he quickly assessed and provided options. He performed his service and all works as expected. We were especially thankful he was willing to take our video call to discuss! Excellent technician! We were thankful for him to be able to come so quickly.
Dale K
Excellent service from first inspection and estimates to the actual appliance installation. Gabe Thomas was skilled, polite and friendly. His plumbing installation was top-notch using the latest technology. Our new water heater has worked flawlessly the past week. I trust Jos Frederick & Sons to work at my home and will use their services in future as well as continuing my HVAC service contract.
Charlie Kentnor
Until the service call last week, I heartily recommended this company. I can no longer be a supporter. The tech was nice, but came without the necessary adapter to check the refrigerant level in my two compressors. He used my hose, but broke off the water flow meter attached to it - and did not tell me. When presented with the bill, my charge was twice as much as last year so I paid $332 for a one hour service call, which is about double what I paid last year!!! I expressed my dissatisfaction to the tech. I have yet to hear back from the company. Life must be bounteous at Joseph Frederick and they obviously do not need my business. So, they will not and I surely will not recommend them.
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Frequently Asked Questions
Can Joseph Frederick & Sons detect leaks through concrete?
Its leak-detection equipment can pinpoint leaks through hard surfaces, including concrete.