BBB HVAC award winner in DD

70 Years Delivering

YEAR-ROUND HEATING & COOLING

Hillside delivers heating oil, diesel fuels, and gasoline to homeowners and businesses in DE, PA, & MD. We’re also a full-service heating & air conditioning company including sales, installation, service, and repair.

Hillside’s Mission: Keep you warm in the winter and cool in the summer while doing customer service right.

Residential + Commercial
OIL DELIVERY

Hillside is a full-service heating oil, heating, and air conditioning company. Hillside offers automatic delivery or call-in delivery.

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Residential
HEATING

Hillside’s professional staff is fully trained to install, maintain, and repair oil, natural gas, and electric heating systems.

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Residential
COOLING

Hillside HVAC’s expert staff is fully trained to install, maintain, and repair all major brands of central air conditioning units and more.

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Commercial
DIESEL & GAS

commercial diesel delivery on-site DE, PA, MD

Hillside offers the best price and service available for off-road diesel to power construction, agricultural, or factory equipment. Order today.

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DELAWARE | MARYLAND | PENNSYLVANIA

FULL-SERVICE HEATING OIL DELIVERY, HEATING, AIR CONDITIONING, AND COMMERCIAL FUEL COMPANY

★ ★ ★ ★ ★

“Hillside is the BEST Heating and HVAC company we have ever had. We have had several other companies in the past but no one compares to Hillside! The service and degree of respect they give customers in Fantastic!!!!”

– ANDREA
Verified Facebook Reviews

Heating

Air Conditioner

Service Plans

Oil Delivery

Commercial Fuels

Indoor Air Quality

Pay My Bill

Tired of suffering from a cold home? Hillside can help you keep warm.

ENJOY WARM AIR with a NEW HEATING SYSTEM

Ready for a NEW Heating System?

Whether you need a cutting-edge furnace, boiler, heat pump, or a versatile ductless mini-split system, Hillside’s team of HVAC technicians possesses the expertise, certifications, and skills to install and configure these advanced heating systems expertly.

Take advantage of our Winter Cooling Specials:

Up to $2,000 Federal Tax Credit*,
$250 Instant Rebate,
FREE Wi-Fi thermostat upgrade with the purchase of a new installation or replacement and
Special Financing**

Call 302-738-4144 (DE & PA) or 410-398-2146 (MD) or fill out the form on this page to schedule a FREE estimate with Jerry. 🙂

air conditioning sales in DE

Winter Heating Specials

* Starting in 2023, under the Inflation Reduction Act*, homeowners are eligible for a tax credit** of 30% of the cost, up to $2,000, for heat pumps and/or heat pump water heaters, in accordance with section 25C of the US tax code. Only certain models qualify for the tax credit, and you must have a tax liability from which to reduce your taxes. The Inflation Reduction Act of 2022 (IRA) is the largest ever climate investment by the Federal Government in American history, projected to reduce greenhouse gas (GHG) by 31% to 44% below the 2005 levels by 2030. **Filed in 2024 for the 2023 tax year. Consult your tax advisor for advice.

** Special financing for 36 months. Subject to credit approval.

★ ★ ★ ★ ★

“After switching to your heating oil service 2 years ago, was impressed by your professional and prompt service. I saw Hillside ad on a ductless mini-split system. I called and Jerry came out. The installers were great and fast. Great doing business with your company. Thanks!” ~ 100% rating – 100% rating – Customer review by J.Z. from Wilmington, DE on 06/13/20

FREE ESTIMATE

Schedule a FREE in-home estimate with Jerry.
★ ★ ★ ★ ★ Verified customer reviews

The Trusted Comfort Experts

Committed to Customer Care

Three generations of family attitudes and values have allowed Hillside Oil Heating & Cooling to successfully service our customers and communities. We know what it is like to be a customer and how we like to be treated. We take pride in thinking like a customer when dealing with our customers. We’ll do everything we can to make sure you have an exceptional customer experience. It’s our promise to you.

NEW TO HEATING OIL IN DE, PA, or MD?

We can help you learn about your oil heating system.

If you are coming from electric or natural gas heat, you may not be familiar with oil heating system basics. We have created a page to show you how to use your oil heating system.

Do I own my own tank?
Can I run out of heating oil?
How much oil is still in my tank?
Does my oil heat system require maintenance?
What do I do when I have no heat?

Learn About Oil Heating

It’s easy to learn the basics of oil heating.

Join Our E-mail List 🙂

Hillside Maintenance Plans

Keeping Your Paws Comfy All Year Round

The Hillside Maintenance Plans are designed to prevent minor problems from turning into major issues! Extend the life of your equipment, reduce the need for costly repairs, and increase the performance of your heating and cooling systems while lowering your utility bills.

View Maintenance Plans

VIEW OUR MAINTENANCE PLANS ⤏

On-Road & Off-Road Diesel Fueling

New Castle County’s ONLY Top-loading Rack System with Diesel Fuels for Resale at Market Prices

Hillside’s “tank farm” with 220,000 gallons of storage capacity allows us to offer fast and convenient access to on-road and off-road diesel fuels and heating oil slightly above market price to anyone with a top-loading tank truck. Construction, landscaping, and excavating companies with their own fueling trucks can save tens of thousands of dollars per year fueling at our location.

Hillside offers several convenient fueling solutions – remote delivery, bulk fuel, and bulk fuel tank equipment services, onsite refueling services, and a card-billing fueling island for both on- and off-road diesel fuels. Our prices for diesel fuel at our location are always better than the local truck stops and fleet fueling facilities. Diesel fueling with no distractions and the best possible price available. No onsite store to tie up drivers. Commercial Fuels Details »

The oil delivery map for Hillside HVAC
Hillside HVAC Fueling businesses 24/7

Commercial Fueling For:
New Castle County, DE
Cecil County, MD
Southern Chester County, PA

COMMERCIAL FUELING DETAILS ⤏

Hillside is Dedicated to Supporting Local Charities

Hillside Cares! As a third-generation, family-owned, and operated business, Hillside has deep roots in our local area. And those roots extend far beyond our business and customer list walls. One of our core values is our belief in the power of “giving back” to our community. We have been proud to offer our in-kind and/or financial support to a growing number of civic and charitable organizations.

See the charities that we support »

HILLSIDE HEATING & COOLING SERVICE AREAS

New Castle County, Delaware

Arden, DE
Bellefonte, DE
Brookside, DE
Claymont, DE
Crofton, DE

Edgemoor, DE
Elsmere, DE
Glasgow, DE
Hockessin, DE
Middletown, DE

New Castle, DE
Newark, DE
North Star, DE
Odessa, DE
Old New Castle, DE

Pike Creek, DE
Smyrna, DE
St. Georges, DE
Townsend, DE
Wilmington, DE

Cecil County, Maryland

Southern Chester County, Pennsylvania

Avondale, PA
Avongrove, PA
Chadds Ford, PA

Garnett Valley, PA
Glen Mills, PA
Kennett Square, PA

Landenberg, PA
Lewisville, PA
Lincoln University, PA

Nottingham, PA
Oxford, PA
Toughkenamon, PA
West Grove, PA

Customer Testimonials

We are honored to have received hundreds of ratings, reviews, recommendations, and testimonials from our heating and cooling customers.

Support of Hillside is support for local, homegrown, family business in our area. Thank you from everyone at Hillside for your business.

Read Testimonials »

Connect with us on Facebook 🙂

We’d love to connect with you on Facebook! We are always posting useful information, helpful tips, and special offers. Most of all, we like to have fun and share our shenanigans on our Facebook page. Come over and join the Hillside online family!

Hillside Facebook

You can also follow us here:

Hillside Oil Heating & Cooling has been family owned and operated for over 70 years. Three generations of family attitudes and values have allowed us to continue to successfully service our customers and communities. Everything about Hillside is locally owned and operated. We do not answer to any parent or mother corporation in some far-off land. Real human beings still work here and answer our phones. We have no touch-tone mazes to navigate in order to speak to a human being that can assist or answer questions. Customer service is the most important thing. We know what it is like to be a customer and how we like to be treated. We take pride in thinking like a customer when dealing with our customers. Support of Hillside is support for local, homegrown, family business in our area. Thank you from everyone at Hillside for your business. Hillside is a full-service home heating oil company as well as a full-service heating and air conditioning service company. We make daily deliveries of home heating oil, diesel fuels, and gasoline.

+ MORE INFORMATION

70 Years Delivering

YEAR-ROUND HEATING & COOLING

Residential + CommercialOIL DELIVERY

ResidentialHEATING

ResidentialCOOLING

CommercialDIESEL & GAS

FULL-SERVICE HEATING OIL DELIVERY, HEATING, AIR CONDITIONING, AND COMMERCIAL FUEL COMPANY

Heating

Air Conditioner

Service Plans

Oil Delivery

Commercial Fuels

Indoor Air Quality

Pay My Bill

Tired of suffering from a cold home? Hillside can help you keep warm.

ENJOY WARM AIR with a NEW HEATING SYSTEM

FREE ESTIMATE

The Trusted Comfort Experts

Committed to Customer Care

NEW TO HEATING OIL IN DE, PA, or MD?

We can help you learn about your oil heating system.

Join Our E-mail List 🙂

Hillside Maintenance Plans

Keeping Your Paws Comfy All Year Round

On-Road & Off-Road Diesel Fueling

New Castle County’s ONLY Top-loading Rack System with Diesel Fuels for Resale at Market Prices

Hillside is Dedicated to Supporting Local Charities

HILLSIDE HEATING & COOLING SERVICE AREAS

New Castle County, Delaware

Cecil County, Maryland

Southern Chester County, Pennsylvania

Customer Testimonials

We are honored to have received hundreds of ratings, reviews, recommendations, and testimonials from our heating and cooling customers.

Connect with us on Facebook 🙂

You can also follow us here:

QUICK LINKS

Residential + Commercial
OIL DELIVERY

Residential
HEATING

Residential
COOLING

Commercial
DIESEL & GAS