With a new energy efficient boiler? The installation cost of for a new boiler depends on the boiler and the work required however, at boxt we believe in providing a fixed fee that includes 'everything in the box'. Let’s face it, your boiler isn’t the most glamorous piece of domestic equipment in your home; but it’s certainly one of the most important! We proudly serve these local areas. What steps can be taken to fix a clogged drain? You should.