01992 301 460 / 07889 805 789


About Harmer

Harmer is a highly experienced and professional plumbing, heating electrical and gas company. We are based in London covering the whole of London, Hertfordshire and Essex. With over 30 years’ experience and Gas Safe Registration, you can be sure that our service is safe and to a very high standard.

We are happy to work on any size of job – from a dripping tap to a full central heating system installation – no job is too big or too small. We pride ourselves on our customer service, and take care to ensure customer satisfaction in every job that we do.

100% Satisfaction


What clients say