Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Zener Electrical Services ← View details 18 Forest Avenue, Cefn Hengoed, Hengoed CF82 7HZ, United Kingdom, Maesycwmmer, England