How to I take insulation tax credit for 2022? My vendor Orkin will not separate labor from materials cost. Thanks.

Ask the vendor or Google the cost of the insulation. Any good faith attempt to separate the cost will do. 

A taxpayer may not include the labor costs for qualified energy efficient building envelope components including a qualifying insulation material; therefore, You must separate the labor from the material.  If your vendor will not separate it (preferred), You can get a price quote as if you were going to install it yourself. 

To enter Home Energy Credits -

1. Select  Federal Taxes 
2. Select  Deductions and Credit
3. Click on I'll choose what I work on 
4. Scroll to  Your Home
5. On Home Energy Credits, click the start or update button

If you choose to do a search: Enter home energy improvement in the Search box located in the upper right of the program screen. 

Click on Jump to home energy improvement

IRS website for Form 5695 - https://www.irs.gov/forms-pubs/about-form-5695