A-1 Discount Plumbing Claim Listing Return to Directory Rating (average) (0) Business Genre Contractor, Electrical Business Website Address a1discount.com Business Address, City PO Box 515223, St Louis ZIP Code 63151 Business Phone Number 3142720628 Ratings There are no reviews yet. Please login to leave a review. Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password?