Excessive Heat Warning

DANGEROUS HEAT 🌡️  Excessive Heat Warning from Sunday, July, 19, UNTIL Monday, July, 20, 8:00 PM MONDAY…with heat index value up to 109 expected.

⚠️  Extreme heat and humidity will significantly increase the potential for heat-related illnesses, particularly for those working or participating in outdoor activities.

Stay safe everyone.

✅  Drink plenty of fluids
✅  Stay in an air-conditioned room
✅  Stay out of the sun.
✅  Check up on relatives and neighbors.
✅  Young children and pets should never be left unattended in vehicles under any circumstances.
✅  Take extra precautions if you work or spend time outside.
✅  When possible reschedule strenuous activities to early morning or evening.
✅  Wear lightweight and loose-fitting clothing when possible.
✅  Heatstroke is an emergency!
☎️  Call 9-1-1.


If you’re an A/C maintenance member, and you have a NO A/C emergency, please call us immediately!!! Your membership gives you same-day emergency service. Don’t wait and suffer in the heat b/c your A/C has stopped completely. Call us at 302-738-4144 (DE&PA) or 410-398-2146 (MD). We’ll get your A/C working!

Not an A/C member…consider joining for all of its savings and extra benefits like NO A/C Emergency service.


What is Extreme Heat?
Extreme heat is a period of high heat and humidity with temperatures above 90 degrees for at least two to three days. In extreme heat your body works extra hard to maintain a normal temperature, which can lead to death. In fact, extreme heat is responsible for the highest number of annual deaths among all weather-related hazards.


  • Extreme heat can occur quickly and without warning.
  • Older adults, children and sick or overweight individuals are at greater risk from extreme heat.
  • Humidity increases the feeling of heat as measured by a heat index.

Why you can trust Hillside for your Heating and Cooling needs!

Hillside Oil Heating & Cooling is proud to be an award-winning HVAC, full-service heating oil delivery, and commercial fuel company successfully servicing our communities and costumers for almost 70 years. 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.

  • BBB International Torch Awards for Ethics 2019BBB International Torch Award for Ethics: On November 19, 2019, Hillside Oil Heating & Cooling achieved elite status after being honored with the 2019 BBB International Torch Award for Ethics, making it one of just four companies across North America, to be recognized by the Better Business Bureau Institute for Marketplace Trust.
  • Hilliside has been awarded an A+ BBB rated for Oil Delivery, HVAC, and A/C services in New Castle County, DE, Cecil County, MD & Chester County, PABBB Torch Award for Ethics: Hillside is won the BBB Torch Award for Ethics in the state of Delaware in 2016, and maintaining an A+ rating for 4 consecutive years.
  • Certified Fresh: Hillside Oil Heating & Cooling is honored to have received hundreds of certified ratings, reviews, recommendations, and testimonials from our heating and cooling customers on Facebook, Google and our website.

★ ★ ★ ★ ★

“Hillside’s prompt and professional response was fantastic and always has been. We are very appreciative of the detailed diagnostics performed by the servicemen. This resulted in us choosing to have them install a brand new state-of-the-art heater in our home Their service and installation of the new heater was Very professional. Our new heater is functioning beautifully and we would not hesitate to recommend Hillside to everyone.”
100% rating – Customer review by T.H. from Hockessin, DE on 01/22/20

excessive heat with No AC Emergency Services

Call Hillside at 302-738-4144 (DE&PA) or 410-398-2146 (MD). We’ll keep your paws comfy all year long including this FALL.

Hillside Heating + Cooling earned the Torch Awards by BBB
Hilliside has been awarded an A+ BBB rated for Oil Delivery, HVAC, and A/C services in New Castle County, DE, Cecil County, MD & Chester County, PA
Hillside HVAC serving DE, MD, PA for 65 yeara