Contact Sara direct via Whatsapp, and she'll get right back to you..


Or simply call Sara 07515 687740

London's ONLY Independent Unvented Specialist Heatrae Sadia MEGAFLO Engineers..

Fully Licensed, Part G3 Qualified.
  • Expert Repairs & Servicing
  • Professional Installations
  • Fixed Charges (NO Hourly Rates)
  • Same Day Service
  • London & SE
If we can't fix it, you don't pay! NO Hourly Rates, NO call-out charges, NO Vat charges, NO DRAMAS!

Who we are, and what we do..

Hello, my names Mark and welcome to Megaflo Service.

I train, assess and approve Plumbers in the 'Part G3' Unvented Hot Water Systems qualification, as well as boiler diagnostics and servicing, encompassing the ACS gas qualifications at Intaplumb, located in the National Construction College in Erith, Kent.
Outside of my lecturing duties, I run a small company based in South East, East and ZONE 1 & 2 CENTRAL LONDON, comprising of a small team of hand picked engineers, specialising in Megaflo hot water system repairs, and specialist boiler repairs on VAILLANT boilers at vaillantservice.co.uk
We carry out REPAIRS, SERVICING, and INSTALLATION of Megaflo systems and VAILLANT boilers in and around the South East & East LONDON area.
We carry a large stock of replacement parts on our vehicles ensuring fast and efficient breakdown services.
99% assured repairs on the 1st visit.
Why use my services?
We won’t rip you off.. And we won’t condemn your appliance after 20 minutes of scratching our chins, and trying to look like we know what we're doing! 
We only condemn appliances if they’re dangerous or beyond economical repair. Even then, reluctantly!
Experts at what we do.
We're a highly qualified and experienced engineers. Clean, well attired, punctual, and we make every effort to cover the surrounding areas to protect your home.
Fixed Price Promise:
Once we take on a job, we take on the responsibility for the price we’ve quoted. So even if it takes longer than we thought, your bill won't escalate at an extortionate hourly rate.
We avoid hourly rates, at every opportunity..

This is what we do.. And we're very, VERY good at it!
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Megaflo & Santon Unvented Cylinder Information, Help, Advice and Videos Available

  • Link to Vaillant Service
    Visit Site

  • Vaillant Boiler Servicing

    Serving London & SE

    More Info
MEGAFLO CYLINDERS UNVENTED HE AND ECO

Customer Technical Help & Advice

MEGAFLO UNVENTED CYLINDER MK5
Watch our videos, and research any problems relating to your Megaflo on the website pages.
Feel free to email any problems (not marital), send us your photos (no weddings or bar mitzvah's) and we'll do our best to help out.
Need to know more about installations? Or how your system works, then the videos should enlighten you into the world of pressurised hot water systems.

Need help? Then don't hesitate to call us on the contact phone number and we'll be happy to arrange a visit by a Qualified, Professional Megaflo Service Engineer.
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What do you get?

We are based in South East London, with access to most areas of East London.
We currently hold the required, relevant qualifications and licenses to work on pressurised hot water systems, and more..
Every engineer holds the minimum of the following:

WRAS Water Regulations Approved

Part G3 Unvented Cylinder Systems

Gas Safe Registered 191833

Public Liability Insurance

City & Guilds Trade Qualifications (plumbing & heating)

Minimum 10 years qualified experience

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Megaflo-service.co.uk