Joseph Frederick & Sons - HVAC services in Wilmington

HVAC

Joseph Frederick & Sons

ONE CALL. ONE COMPANY.

4.7 (157)

Our Story

Joseph Frederick & Sons is a fourth-generation family-owned business founded in 1947 as a small plumbing company in Brack-Ex, which has grown into a multimillion-dollar organization serving the Delaware Valley with plumbing, heating, cooling, and electrical services. The company upholds values of hard work and strong ethics passed down through generations, thriving despite challenges during leadership transitions. Committed to outstanding customer service and ongoing employee education, they have earned a reputation for reliability, quality work, and customer trust through referrals and repeat business.

Our Specialties

HeatingAir ConditioningPlumbingElectrical

Services

What we bring to every project

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Portfolio

Service Area

Based in Wilmington, DE

Serves within 30 minutes drive from Wilmington

Client Reviews

4.7 from 157 reviews on Google

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.

Dale K 7 months ago

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.

Mike B 3 months ago

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.

erin m 6 months ago
See all 157 reviews on Google Powered by Google

Common Questions

If your heat pump is freezing up in Brandywine, DE, our technicians diagnose common causes like refrigerant leaks or airflow restrictions using specialized tools to restore proper operation quickly. We explain the issue thoroughly and perform repairs on all brands to prevent future problems and maintain energy efficiency. Our prompt, professional service ensures your heating system runs smoothly without unnecessary callbacks.

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Get in touch for a free estimate. We respond within 24 hours.

Wilmington, DE

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