Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Services Design & Installation Limited [SDi Ltd] ← View details Heron House, 50 Herons Way, Bolton, Lancashire BL2 1EX, United Kingdom, Bolton, England