Professional Boiler Servicing London | Gas Safe Engineers

Published:2026-08-03

i 3 Table Of Content

Boiler servicing and ongoing maintenance keep your system safe, efficient and under warranty. Call 020 7183 4810 to book with a Gas Safe registered engineer.

Ready to book your service?

Fixed-price servicing and maintenance across London.

Need a Gas Safe engineer today?

Same day callouts across Central and West London, fixed quotes and fully guaranteed work.

Call now — 020 7183 4810   or request a call-back

What is included in a service

A full service covers a visual and mechanical inspection of the boiler, combustion and carbon monoxide testing with calibrated equipment, a check of controls and safety devices, and a review of the flue and ventilation. This is not something to attempt without the right tools and Gas Safe certification.

What ongoing maintenance looks like

  • Annual servicing by a Gas Safe registered engineer
  • Monitoring pressure and flagging repeated drops
  • Addressing small issues before they grow into breakdowns
  • Keeping a service history for warranty and resale purposes

Why we do not recommend DIY maintenance checks

Common online adviceWhy it falls short
“You can check most things visually yourself”Carbon monoxide and combustion issues are invisible without calibrated testing equipment.
“Maintenance is optional if the boiler runs fine”Faults often develop quietly and are only caught through a proper service.

What it costs to skip regular servicing

Deferred maintenance leads to lower efficiency, higher bills, and a greater risk of a breakdown or a voided warranty. A small annual cost avoids a much larger one later.

How Olia’s Plumbing & Heating handles it

  1. Call 020 7183 4810 to book
  2. Our Gas Safe engineer completes a full service using proper equipment
  3. You receive a written report and recommendations

Book your service and maintenance check

Keep your boiler safe, efficient and under warranty.

Book now — 020 7183 4810   or request a call-back

Frequently asked questions

How often should maintenance be carried out?

A full service once a year is the standard recommendation from manufacturers.

What is the difference between a service and a repair?

A service is a preventative check; a repair fixes a specific fault that has already developed.

How much does servicing cost?

Call 020 7183 4810 for a fixed price based on your boiler and location.

Keep your boiler safe and efficient. Call 020 7183 4810 to book your service.

Related services: Boiler Service London, Do You Need to Service a Boiler Every Year, Boiler Repair or Replacement: What Makes Sense

About the author
Peyman

Peyman

CEO & Founder — Gas Safe Registered Engineer

Peyman is the founder of Olia's Plumbing & Heating, a London based team with over 15 years of hands on experience in boiler installation and repair, central heating, gas work and emergency plumbing. He personally oversees jobs across Central and West London and writes these guides to help homeowners understand their heating systems.

  • Gas Safe Registered
  • 15+ years experience
  • Covering all of London
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