Big Al's Services

"Big Al's Services is Plaistow, NH's trusted heating and cooling contractor, proudly serving Southern NH since 2017, including Atkinson, Salem, Hampstead, Newton, Windham, Derry, and Londonderry. We specialize in boiler installation and repair, oil-fired heating systems, central AC, and Mitsubishi ductless mini splits. As a certified Mitsubishi Diamond Dealer, we deliver the highest standard of installation and service backed by extended warranties. Available 24/7 for emergencies.