In business since 1983, Derrick Plumbing & Heating Ltd. employs certified contractors for residents of Fort St. John and the surrounding communities (within a 300-mile radius). Whether you require plumbing or heating repairs right away, or you simply want to avoid costly problems down the road, our staff is ready to answer the call. We are an authorized dealer of Lennox products and stock a wide array of new replacement parts to optimize the performance of your existing HVAC systems.