Flatiron Construction Corp Claim Listing Return to Directory Rating (average) (0) Business Genre Contractor, Homes Business Website Address flatironcorp.com Business Address, City PO Box 2239, Longmont ZIP Code 80502 Business Phone Number 3034854050 Business Fax 3034853922 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?