CSM Heating, Cooling & Roofing is a branch of Chehalis Sheet Metal, Heating, Cooling & Roofing. We started business in 1962, and have been busy expanding. With Employees that have been here since the start of business, we have a lot of knowledge in the HVAC field. Training, and growing with the times is something we do. CSM gives our customers what they are looking for, honesty, workmanship, and a company that stands behind their products. Our Comfort Specialist will listen to your concerns and offer you options on how to be comfortable in your home, 365 days a year. On the Hottest day or on the Coldest day you should be comfortable. We also offer 24/7 emergancy service, and since we have been here so long you don't have to worry about us leaving!! We carry Trane and Mitsubishi products the two top of the line products for HVAC needs.