Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information E R M Mechanical Services Ltd ← View details 10 Northland Road Industrial Estate, Londonderry, Northern Ireland BT48 0LD +44 28 7130 8446