Thunderbolt Wood Treating is the leader for wood treatments in California. Thunderbolt Wood Treating provides TSO (Treating Service Only) with CA-C (Copper Azole) for lumber, plywood, posts & poles in residential, agricultural and light commercial applications; ACZA for agricultural, marine and industrial applications; BORATES and FLAME TECH FRTW for interior residential and commercial purposes; and CCA that can be found in agricultural and many non-residential areas of construction. Our treating services are EPA-approved and meet AWPA (American Wood Protection Association) standards. We also offer a variety of other services such as WOOD STAINING that adds a Redtone, Cedartone or Brown for aesthetics; KILN DRYING for Heat Treating, Drying After Treating (KDAT) or Drying only; CUSTOM MILLING or end trimming (PET / CTL) and SG E-375-08 Marine Grade POLYUREA Spray Coating for use over treated wood in sensitive aquatic wetland environments.