Hassle-Free Boiler Installations in South Croydon, Purley and Surrey

Welcome to the website of Gas Mark 1 London Ltd, your leading plumbing and heating specialist in Croydon. I provide a friendly and reliable service for domestic customers throughout Purley, South Croydon, London and Surrey. As a qualified plumber and gas engineer for many years, I maintain high standards across all areas of my work, whether it’s boiler installations, boiler repairs and boiler servicing or central heating repairs, power flushing and gas appliance servicing.


Contact me today for free estimates, same-day services and emergency callouts.

Plumber in Purley

Gas Safe Plumber and Heating Engineer


I’m Eric Saayeng, a Gas Safe and G3 qualified plumber and heating engineer with over 15 years of industry experience. After working for a recognisable gas and heating provider for over a decade, I have an in-depth knowledge and understanding of the industry. Today, I run Gas Mark 1 London Ltd in Croydon, to provide customers in Purley, Epsom, South Croydon and the wider London and Surrey regions, with an affordable, personable service you can count on.


From boiler installations, boiler servicing and boiler repairs, to gas safety certificates, central heating repairs and cooking appliance installations, I supply a wide range of services for residents and landlords in and around the Croydon area. All work is guaranteed and insured.

Boiler installations in Purley

Services offered but not limited to include:


  • New Boiler Installations
  • Gas Pipework Alterations
  • Boiler Repairs
  • Central Heating Repairs
  • SMART Thermostats
  • Central Heating Controls
  • Power Flushing
  • Boiler Servicing
  • Central Heating Servicing
  • Appliance Installations
  • Gas Safety Certificates
  • Landlord Gas Safety Certificates (CP12’s)
  • Fixed Price Services
  • Free Estimates and Advice

Why Choose Gas Mark 1 London Ltd?


I value my customers, which is why Gas Mark 1 London Ltd comes highly recommended. From the first point of contact I provide a transparent service, understanding the need for complete honesty on pricing and timeframes. I think it is important as a plumber and gas engineer to have good communication with customers, which is why I always aim to keep you informed during an installation, repair or service.


I take pride in delivering successful solutions at an excellent price and the quality of my work is extremely high. Whether you require central heating and boiler installations in South Croydon or boiler servicing and repairs in Purley, do not hesitate to contact me for a plumbing and heating service you can rely on.


I supply, install and repair all major boiler brands; Ideal, Worcester Bosch, Baxi and Vaillant.

Looking for a reliable plumber and gas engineer? Call Gas Mark 1 London Ltd today on 07930 216 914 for plumbing and heating services in Purley, South Croydon, London and Surrey.

Plumber in Purley
Boiler installations in Purley