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HVAC Powers Back-to-School

The start of a new school year means packed lunches, permission slips, and plenty of trips to the store for supplies (because somehow, pencils disappear faster than snacks). But while you’re making sure your kids are set up for academic success, there’s one more thing you can do to give

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Understanding Your HVAC Warranty

What Is an HVAC Warranty? An HVAC manufacturer’s warranty is an agreement that the manufacturer of a product will cover any necessary repairs and replacements for a specified period. Most manufacturer warranties cover defective parts for up to 10 years, but do not cover labor or installation costs. Your HVAC

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What’s New in HVAC Technology

Smarter Home Cooling: Real Solutions for Your Home (and What’s Coming Next!) Imagine finishing your run, stepping inside, and your home instantly knows what you need. Your AI comfort system reads your body temperature, sweat levels, and heart rate—and automatically cools you down with a futuristic AI-powered heating and cooling

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What’s a SEER Rating

How to get SEER-iously comfortable! If you’ve ever shopped for a heat pump, ductless mini-split, central air system, or even a full HVAC replacement, chances are you’ve heard the term SEER tossed around. But what does it really mean—and how does it affect your wallet? Let’s break it down. What

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Final Destination: HEAT WAVE

Hillside sent this script to a Hollywood producer. It’s based on a true story… and it’s happening this week. Extreme heat. A failing A/C. A race against time. Sounds like a horror movie? That’s because it is. Except this one isn’t fiction — it’s your neighborhood, your thermostat, your family

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AC Comfort Then and Now

We’re proud to announce our new status as a Mitsubishi Electric Elite Diamond Contractor. This prestigious designation reflects our dedication to top-tier HVAC installation and service.

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Hillside Oil Heating & Cooling Service Areas

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

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

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