Range from the cheapest replacement of a programmer £105 (Mohammad Reza Mohammadi based in EN5) to the dearest replacement of a programmer £145 (Boilerfix1st based in EN6).
Comparing heating engineers estimates for replacing a programmer gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to replace your heating digital programmer in Hertsmere by posting a job with HaMuch and we will send it to heating engineers in Hertsmere.