WE THINK BEING IN HOT WATER IS A GOOD THING DISCUSS YOUR NEEDS WITH A BOILER OR WATER HEATER CONTRACTOR IN GLEN COVE, NY Who can you call when your water runs cold and your home won't heat up? For over 13 years, Precision Mechanical Contractor LLC has been a leading provider of boiler and water heater installation services in the Glen Cove, NY and Queens areas. If you need gas boiler installation services or water heater replacement services, we're here to help.