Cert of Liabiltiy from Roof Vendor

[Jennifer Sharp]

Here’s my question in regards to a vendor producing a certificate of liability insurance . Should we be named as certificate holder ? And most importantly why or why not should they have general commercial liability as well as workers comp and employers liability. Vendors I have used in the past on personal property had both. The vendor for this commercial property only has workers comp and employers liability. Help anyone issues these for roofing/construction. I have called the producer but no response from producer.  I should note Small town not a lot of options.