When it comes to gas furnace service in Vallejo, CA, Environmental Heating & Air Solutions leads the competition with highly skilled technicians. From gas furnace replacement to repairs, our experts understand how important it is to get the services you need fast. Your furnace works hard to keep your home cozy in the cooler months, but that hard work can cause a lot of wear on the parts. Acting fast when you notice a problem keeps you from freezing and prevents potentially dangerous issues with your system.