Before signing a contract to make Windows in Nelson, LocalProBook recommends you check a contractor License or Home Improvement Salesperson (HIS) Registration using License Board service.
To get a list of licensed contractors in any area of California, simply enter either a city or zip code and pick the license classification you want. To get a list of licensed contractors in any area of California, simply enter either a city or zip code and pick the license classification you want.
https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/ZipCodeSearch.aspx