Frequently Asked
Questions.

Yes. All OnTime Plumbers engineers are Gas Safe registered and fully insured to work throughout London, Hertfordshire, Essex and Surrey.

Gas Safe Register is the official, legally required register for gas engineers in the UK. Being registered means our engineers are qualified and regularly checked to work safely on boilers and gas appliances.

We've completed over 1,000 jobs across London with 300+ five-star Google reviews, building a reputation for fast, reliable emergency plumbing.

Call us 24/7 on 08000 584799, or use our online contact form and we'll call you back.

Callouts start from £49. The final price depends on the job, but we always confirm the price with you before any work begins — no hidden charges.

Boiler repair costs vary depending on the fault, but we always give you a clear, upfront quote after diagnosing the issue — before any work starts.

Yes. We offer free, no-obligation quotes for plumbing, boiler and central heating work across London.

Yes. We handle everything from urgent burst pipes and blocked drains to routine boiler servicing and central heating maintenance.

We offer 24/7 emergency call-outs and aim to be at your door within 45–60 minutes across London.

Yes. Beyond general plumbing, we provide boiler repair and installation, central heating diagnostics and repair, and gas leak call-outs — a complete plumbing service under one Gas Safe registered team.

If a repair isn't cost-effective, we'll talk you through installation options and give you a clear, upfront quote for a full boiler replacement.

We cover all of Greater London — every borough, and aim to be at your door within 45–60 minutes for emergencies.

Yes. We also cover Hertfordshire, Essex and Surrey.