Private Blood Tests are available in Warrington through Blue Horizon Medicals at the Warrington Spire Hospital. Fir Tree Close, Stretton, Warrington, Cheshire. WA4 4LU. This private and professional clinic blood test location can test patients of ages 18+ but does not have freezing facilities. As phlebotomy is included and the entire process is managed by professionals, this is a VIP blood test, not a DIY blood test.