Flowing with quality, warming with trust
Established in 2020 and built on 12+ years of hands-on trade experience — rooted in Hertfordshire, extending our expertise to London & beyond.
More than a service provider
On Demand Plumbing & Heating was established in 2020 by Jamie Marle, and the company now runs on more than a decade of combined trade experience. We’re your trusted partner in maintaining a comfortable and safe environment — not just the number you call when something breaks.
Gas Safe registered engineers handle everything from 24/7 emergencies to boiler installations, servicing and gas safety, always with a transparent price before work begins.
We’re open 24/7, Monday to Sunday, across Hertfordshire and all 32 London boroughs — and the friendly faces below are the actual people who’ll turn up at your door.
Jamie Marle · Owner & FounderThe people behind the vans
Real photos, real names — the same team you’ll see on site.
Jamie Marle
Owner & Founder
Jamie Weichert
Project Supervisor
Max Gilbert
Gas Engineer
Tom Littleboy
Gas Engineer
Sidney Mcateer
Plumber Engineer
Oliver Reading
Plumber Engineer
Ben Noctor
Plumber Engineer
Jake Howell
Plumber Engineer
Luke Nash
Plumber Engineer
Andy Field
Drainage Specialist
Toby Lewis
Apprentice
Mandy Wass
Operations Manager
Bethany Jones
Administration Officer
What you can count on
Open 24/7, Mon–Sun
Genuine round-the-clock cover. Call 07538 144040 any hour, any day.
Certified engineers
Gas Safe registered engineers, adhering to all regulations.
Hertfordshire & all of London
Rooted in Hertfordshire, extending our expertise across every London borough.
Transparent pricing
A clear quote before any work begins — the fourth step of our published promise.
Boiler specialists
Installation, servicing and repairs — with 10-year warranties available on new boilers.
A real local team
Jamie, Max, Tom, Sidney and the crew — the same friendly faces on every visit.
Est. 2020, 12+ years’ experience
A young company built on over a decade of hands-on trade experience.
Your trusted partner
More than a service provider — flowing with quality, warming with trust.
Book → appointment → problem solved
- 1
Book your service
Call, WhatsApp or send the form. For emergencies we answer 24/7, Monday to Sunday.
- 2
Set the appointment
We agree a time that suits you and turn up when we say we will — across Hertfordshire and London.
- 3
Assessment & clear quote
An engineer assesses the job properly and explains your options with transparent pricing before work begins.
- 4
Problem solved
Quality workmanship using the latest methods and equipment, carried out to all regulations.
- 5
Testing & tidy handover
We test everything, clean up after ourselves and give you honest aftercare advice.
Need a plumber or heating engineer today?
Call On Demand for emergency support, repairs, maintenance and installations across West and Central London.
+44 7538 144040 · Available 24/7 · Hertfordshire & London