* Call for Details. Free In-Home Estimate and Up Front Pricing with Options, Including 15 Year to Lifetime Warranty on Parts & Labor. Discounts applicable to any name brand system in your home with a manufacturer data plate (date of manufacture) referenced above. Discounts are based on current book price and cannot be combined with any other specials, offers or discounts. If financing, based on 9.9% 120-month financing or cash/check. All equipment is professionally installed by Abacus trained employees, and old equipment is professionally recycled.