About Us

If you’re like me and get 3-4 quotes, then save your time and see Gary first. Gary was highly skilled, friendly and works twice as fast as the competition, which means he works fewer days and can therefore offer better rates. I asked him to supply and fit a boiler that needed millimetre precision as a kitchen unit was going around it afterwards. I also asked for decorative exposed pipework which is not easy. Gary went above and beyond, even laying a new wooden floor when the carpenter couldn’t turn up. Gary also came back to check on things and even helped my neighbour. Will 100% use again.

Customer in Kingston upon Thames

Complete was formed by Gary Cousins with the vision to make boiler replacement an affordable, stress free process, for homeowners across Surrey and south London.

After spending his early days working for a national heating company, Gary picked up the skills needed to communicate and interact with customers on a personal level.

He now uses those skills to provide a first class customer service which national companies just cannot provide.

With this personal approach and high workmanship standards, Complete has grown into what it is today – the number one choice for boiler installations across Surrey and south London.

Our reputation continues to grow from our friendly, honest, impartial advice. With the help of sites like Which? and Checkatrade our positive feedback can now be shared with the world.

Thank you to all of our existing customers and a big ‘hello and welcome’ to all of our new ones! We look forward to working with you all throughout the years to come.

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