At Siegman if it is s worth doing, it is worth doing right! Based on that motto we are fully committed to your satisfaction. We service all major makes and models and offer Trane quality heating and cooling products for new and replacement systems. We specialize in custom installed, complete home comfort systems. So that we can be there when you need us, we offer 24-hour emergency service. Check out our current offers and rebates. To hear from satisfied customers, read some of our customer testimonials. Whether it is your air conditioner, heat pump, furnace, boiler, or more, if you are in the greater Hanover, PA or Westminster, MD areas, we can be the only call you need to make.