Haly Oil technicians bring a depth and breadth of experience to each job they undertake. Our heating oil professional technicians combine factory training with real-world, hands-on experience and a genuine concern for our client's needs to deliver an unrivaled customer experience. Our Constant Comfort guarantee is a first for our heating company's industry and guarantees that our customers stay warm in the winter and cool in the summer. Whether, you need a complete heating and cooling system, radon testing, or a fuel delivery, we will serve you with the dedication and care we put forth with our own families . We also own and operate Great Valley Propane, where our mission is to provide our valued customers with prompt service and fair-priced propane. We never advertise the "lowest prices in town", but we do promise to provide competitive prices. We want to keep our customers in South Eastern Pennsylvania for the long term, not just a few years. We are available 24 hours a day, 7 days a week.