LJ Kruse is a family-owned and operated plumbing, heating and cooling company located in Berkeley California. We have been servicing the greater Bay Area for over 100 years. We offer Commercial & Residential services. Our services include: water heater, tankless, boiler maintenance, hydro-jetting/ drain cleaning, forced air, in floor heating, steam & radiant heating, A/C & heat pump systems. All Brands and we provide prompt and fully qualified.