Special Financing Available!
Hillside partners with Wells Fargo to offer the Wells Fargo Home Projects Credit card. A Wells Fargo Home Projects credit card is a convenient way to pay for goods and services, and offers the following benefits:
- A revolving line of credit that you can use for current and future purchases.
- Convenient monthly payments to fit your budget.
- Easy-to-use online account management and bill payment options.
Join Over 5000 Customers Who Trust Hillside For
- Modern Energy-Efficient Products
- Exceptional Customer Service
- Fast and Flexible Scheduling
- Up-Front and Fair Pricing
- Industry Leading Warranties
- Excellent Service and Maintenance Plans
- Courteous and Professional Technicians
- Over 70 Years of Industry Expertise
THE TRUSTED COMFORT EXPERTS OF DE, MD, & PA
WE LOVE OUR CUSTOMERS
All of our work is guided by three generations of family attitudes and values – respect, loyalty, integrity, accountability, honesty, kindness. We pride ourselves on building excellent relationships with our customers, some of whom we have served for decades, and then gone on to serve their children for decades. Above all, we know what it’s like to be a customer and how we’d like to be treated.
That’s why we’re so honored to have received thousands of glowing ratings, reviews, recommendations, and testimonials from our heating and cooling customers. It means the care we put into our work shows through, and that we truly are doing customer service right.
Posted on Facebook![]()
Joe RoachJanuary 29, 2025recommends
Hillside is great for both repairs and major system replacements. Reasonable prices and great service!Posted on Facebook![]()
Lauren RiebelNovember 26, 2024recommends
This was our first time using this company & we will absolutely be using them again. Our technician was extremely knowledgeable & friendly. He really took the time to explain everything to us & didn’t try to sell us something new. I would 100% recommend this company to anybody in the area for any of your heating and cooling needs.Posted on Facebook![]()
Wendy LewisJuly 25, 2024recommends
My technician, Michael Fields II, assures me that all is well with my systems. I trust his assessment so feel confident that we will stay cool this summer and be warm this winter. He was polite, friendly, considerate, and EXTREEMLY popular with my pets. Bodhi and Baxter, one of the 2 dogs and one of the 2 cats, were very happy to follow him everywhere in the house. All 4 pets waited for him each time he went outside and made sure to get pets upon his return. I love that Michael came back this year and continues to take care of my systems as his father did before him. Very cool! Many thanks, and the crew looks forward to his return!Load more
Posted on Google![]()
R MAugust 25, 2026
Very professional. Highly recommendPosted on Google![]()
Brandon ElmanAugust 17, 2026
Justin from Hillside came out to do a tune-up on our heat pump with auxiliary oil and replace a fuel gauge. He was very helpful in answering questions and service was fast, professional, and affordable.Posted on Google![]()
Aaron WrightAugust 12, 2026
Great service by great people. Highly recommended.Load more
Proudly Serving New Castle County, DE, Cecil County, MD and Southern Chester County, PA.