Hi – I m John Sleeman.
My company installs energy efficient German and Dutch condensing boilers, and solar panels and we specialise in heating installations in North and Central London.
To offer competition to the large heating companies who seem to charge a high price for services that are adequate but unexceptional. I aim to provide a good quality service at a competitive price.
I offer good technical knowledge of central heating, plus the ability to design systems that conform to the best modern standards. Good communication with customers is important to me, as is the continued good operation of my installations. I offer a 2 year guarantee on my workmanship and the boilers I install are covered by guarantees on parts and labour , some of them for 5 years. I use only responsible and competent co workers.
Complete Heating Installations
Unvented hot water systems
Solar powered hot water