Mainline Construction, owned by Dick M. Thompson, has been operating in Longview, Washington since 1990. We specialize in residential and commercial remodeling and new construction.

Lower Columbia Contractors Association

Feel free to call us if you need to talk with a professional contractor. We provide free estimates within Cowlitz County.

• Bonded and Licensed    MAINLC*101NO
• Telephone #:                    (360) 636-3174
• Fax #:                                (360) 425-7731

• Member of Lower Columbia Contractors Association