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Why Hillside Oil Heating & Cooling?

Why Choose Hillside?

Locally Owned and Operated

Hillside Oil Heating & Cooling has been family-owned and operated for over 70 years. 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.

Industry Leading Energy-Efficient Products

At Hillside, our focus is on providing industry leading energy-efficient equipment with excellent longevity and great warranties. We carry and service most name-brand equipment, including Armstrong Air, Thermo Pride, Peerless Boiler, Mitsubishi and other ductless systems Rinnai Tankless Water Heaters, Honeywell, Aprilaire, and Roth fuel oil tanks.

Highly Trained Technicians

Our professional staff is fully trained to install, maintain, and repair oil, natural gas, propane gas, and electric heating systems. This includes hot air, hot water, boiler, heat pump, and water heaters (traditional and modern tankless on-demand water heaters). We’ve been successfully installing central heating and cooling solutions for over 70 years. And they’re considerate too! Hillside consistently receives compliments about our technicians leaving the condition of the area we serviced better than when we arrived.

Exceptional Customer Service

At Hillside, customer service is our top priority. That is why you will instantly speak to one of our team members—you’ll never have to deal with a touch-tone maze. During regular business hours, our phone is always answered by a human being. We follow the golden rule and treat others as we would wish to be treated. We take pride in thinking like a customer when dealing with our customers.
Hillside Awards

Fast and Flexible Scheduling

When you call Hillside to schedule delivery or service, you speak to a real human. That means you’re working with someone that is focused solely on serving your needs and working to the convenience of your schedule, not simply fitting you into a box on a calendar. And when emergencies do happen, we work quickly to get a technician to your home to get you back up and running!

Up-Front and Fair Pricing

There are no surprises with Hillside. We offer up-front, fair, and fully transparent pricing. We’re always looking out for what’s best for YOU, not what’s best for Hillside. That means there’s never any “hard sell” here. Of course we will present you with all options available, but it’s your choice. And if a repair will suffice, we won’t try to scare you into buying new equipment like many other companies might.

Great Warranties and Service Plans

We choose our equipment based on its reliability and the warranties offered by the equipment manufacturers. All of our products come with industry leading warranties, and in many cases our dealer status allows us to offer unbeatable extended warranty coverage for little to no additional cost. In addition, we offer a number of fantastic service plans for any budget. These plans can extend your equipment’s lifespan, and dramatically reduce overall maintenance costs for the life of the unit.

Financing, Rebates, and Budget Billing

There’s no question, HVAC systems and home heating oil can be costly. Our team is skilled at creating great solutions for all customers regardless of their budgets. Hillside offers special financing for new equipment installs. We also have a deep understanding of all current State and Federal rebate programs to help reduce equipment and install costs. And we offer budget billing plans for heating oil delivery to spread out your energy costs throughout the year instead of paying all of those costs during heating season. Whether you need to order fuel, schedule a maintenance visit, or purchase a new HVAC system in New Castle County, DE, Cecil County, MD, or Southern Chester County, PA, Hillside Heating & Cooling’s friendly customer service team is here to ensure that the process is easy for you. Our fully trained staff members will be delighted to speak with you and help you with your heating and cooling needs.

Call Us Today

Delaware, Pennsylvania302.738.4144
Maryland
410.398.2146

Contact Us

This contact form does not substitute for a service call request. Please call our office 302-738-4144 or 410-398-2146. Thank You.

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.

ExcellentFacebook star 1Facebook star 2Facebook star 3Facebook star 4Facebook star 55.0223 reviews
5.0Facebook star 1Facebook star 2Facebook star 3Facebook star 4Facebook star 5
Excellent223 reviews
Posted on Facebook Facebook
Joe Roach profile picture
Joe Roach
January 29, 2025
positiverecommends
Hillside is great for both repairs and major system replacements. Reasonable prices and great service!
Posted on Facebook Facebook
Lauren Riebel profile picture
Lauren Riebel
November 26, 2024
positiverecommends
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 Facebook
Wendy Lewis profile picture
Wendy Lewis
July 25, 2024
positiverecommends
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!
ExcellentGoogle star 1Google star 2Google star 3Google star 4Google star 54.8244 reviews
4.8Google star 1Google star 2Google star 3Google star 4Google star 5
Excellent244 reviews
Posted on Google Google
R M profile picture
R M
August 25, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Very professional. Highly recommend
Posted on Google Google
Brandon Elman profile picture
Brandon Elman
August 17, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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 Google
Aaron Wright profile picture
Aaron Wright
August 12, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Great service by great people. Highly recommended.
Hillside Oil Heating & Cooling proudly serves New Castle County, DE, Chester County, PA, and Cecil County, MD with trusted heating oil delivery, HVAC service, and expert home comfort solutions.

Proudly Serving New Castle County, DE, Cecil County, MD and Southern Chester County, PA.

Call Hillside Oil Heating & Cooling at 302-738-4144 for DE & PA or 410-398-2146 for MD

302-738-4144 (DE & PA) 410-398-2146 (MD)

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