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About us
Armstrong Associates Inc. is a family-owned HVAC company proudly serving Chester County, Pennsylvania. Founded by Steve Sr. and now led by Steve Jr., we provide reliable heating and cooling services built on craftsmanship, honesty, and long-term customer relationships.
We’ve built our reputation through word-of-mouth and quality work — no hidden fees, no shortcuts, just good service at a fair price.
Our Services
Oil or gas furnaces
Whether you use oil or gas, our high-efficiency heating solutions provide lasting comfort. We specialize in expert installation, repairs, and maintenance for year-round reliability.
Boilers
Energy-efficient oil and gas boilers that deliver dependable heat and hot water for your home or business. Expert installation and service you can trust.
Water heaters
Reliable hot water for every home. We install and service electric, gas, propane, and heat pump water heaters—both tank and tankless—to ensure you never run cold.
Heat pumps
Enjoy efficient year-round comfort with our expert heat pump services. We specialize in geothermal, air-to-air, and mini-split systems designed to heat and cool your home in any weather.
Air conditioning
Keep your home cool and comfortable with high-efficiency air conditioning systems — professionally installed and maintained for peak performance.
Installation
From design to setup, our certified technicians ensure every system is installed correctly for maximum efficiency and reliability.
Repair & maintenance
Fast, dependable service to keep your HVAC systems running smoothly.
Frequently asked questions
Company & Services
System Knowledge & Education
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