ProSource of Allen 91.10 Rating Score™ Other Of 69 ratings/reviews posted on 5 verified review sites, ProSource of Allen has an average rating of 4.41 stars. This earns a Rating Score™ of 91.10. View Profile & Reviews 12/11/2018 Verified We had a very successful experience with ProSouce of Allen. They were very helpful and accommodating. We appreciate our Flooring Contractor for recommending them.