Unvented Hot Water Specialists

Megaflo Unvented Systems specialise in high performance domestic hot water systems. A well designed Megaflo system will deliver fast flowing, pressurised hot and cold water to all taps and showers throughout the property. Unvented systems are the preferred choice for many developers, architects, heating engineers, and end-users. Together with numerous benefits over traditional vented systems, they are extremely reliable and require very little maintenance. The importance of a correctly designed system cannot be over-emphasised!
As part of Apex Plumbing and Heating, we deliver the highest levels of service and consistently exceed our customer’s expectations.

Contact Details:

07810 094803
01252 311003

About Us

Megaflo Unvented specialise in the installation of Megaflo or Unvented hot water Systems. As a small local company, and part of Apex Plumbing and Heating, we build on the traditional business values of quality, professionalism and value for money. We deliver the highest levels of service and are proud to consistently exceed our customer’s expectations.

With our enviable reputation for quality and customer service, we are qualified to install all leading brands of unvented cylinders. Customer care, honesty and reliability are a few of the things that matter to us; we work with integrity, we arrive on time, we don’t use jargon and our workmanship is always fully guaranteed.

Operating within a 20-mile radius of Guildford, Surrey, we deliver a professional and reliable service to both domestic and light commercial customers.

Our mission is simply to deliver a professional service to every customer, everytime. That begins the moment you call, with a courteous greeting, prompt attention and a reliable service from start to finish.


Megaflo Experts

Specialists in Megaflo and other unvented systems. This is our forte! Routine servicing, diagnostics and repairs, and anything related! Fixed price servicing and repairs (plus parts).  with most parts on the van. and anything related to Unvented hot water systems.  

Gas Services

As independent registered Gas Safe installers, we are not incentivised by any particular boiler manufacturer.  Our focus and drive are purely on efficiency, value and quality.

Plumbing and Heating

Megaflo Unvented are part of Apex Plumbing and Heating.  As the name suggests, we cover all areas of plumbing and heating. All engineers are trained and qualified to do a professional job, that’s exactly what you get!


We are extremely grateful for the testimonials left by all our happy customers.

Thanks so much for all your careful, courteous, methodical work it’s been so far above the rather more slapdash approach of so many tradespeople! The system is running well and delivers lovely hot water for the showers and bath at fantastically high pressure. Even the loo fills more quickly!

T.R. - Shepperton

We chose Nigel to install our new Megaflo heating and hot water system because he impressed us with his knowledge and his calm, helpful demeanour. We definitely made the right decision. Nigel worked very neatly and professionally, did a great job of minimising dust and mess, and generally made the whole thing as easy and stress-free as it could be. Our new system is fantastic and we are very happy with it.

S.B. - West Horsley, Surrey
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