heating and cooling maintenance plan

COMFORT UPGRADES

Home comfort upgrades
testimonial-albany

Home Comfort Upgrades Services in DE, PA, & MD

Keeping your paws comfy all year long often takes more than just heating and cooling products and services.

That’s why Hillside’s services extend to other solutions to help keep your home cozy. These include:

Smart Device Control. Hillside proudly sells and installs modern, remotely accessible Honeywell thermostats. Control your thermostat from anywhere using your smartphone or computer, allowing you to manage temperatures according to your schedule.

Tankless Water Heaters. A tankless water heater is an excellent alternative to the traditional “tank” water heater. They are affordable and flexible, accommodating many replacement situations. Install a tankless water heater today and never again worry about running out of hot water, water pressure, or planning when to shower in your home.

Call us today to learn more about our home comfort solutions, and to schedule a FREE estimate at 302-738-4144 (DE&PA) or 410-398-2146 (MD).

REQUEST FREE ESTIMATE

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

Why Invest in Home Comfort Upgrades?

Home comfort upgrades improve efficiency, control, and long-term savings. Homeowners in New Castle County, DE, Chester County, PA, and Cecil County, MD can reduce energy costs and enjoy more consistent comfort with modern systems. 
Why Smart Thermosotats
Take control with smart thermostats from Honeywell.
  • Adjust temperature remotely
  • Set energy-saving schedules
  • Monitor usage and improve efficiency
  • Integrate with smart home systems
A simple upgrade that lowers bills and improves comfort.
Why Tankless Water Heaters
Tankless water heaters deliver hot water on demand.
  • Endless hot water
  • Energy-efficient operation
  • Space-saving design
  • No more running out during peak use
A reliable upgrade for modern homes.
Comfort upgrade: tankless water heater installed by Hillside

SCHEDULE A FREE ESTIMATE TODAY!

Call Hillside Heating and Cooling to schedule a FREE estimate for a new smart thermostat or tankless water heater installation at 302-738-4144 or 410-398-2146.

Join Over 5000 Customers Who Trust Hillside For

THE TRUSTED COMFORT EXPERTS OF DE, MD, & PA

Hillside Awards

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)

Scroll to Top

CONTACT US

CALL US

SPECIALS