Range from the cheapest Fix a leak £140 (B. Baah & Co Plumbing and Heating based in LU2) to the dearest Fix a leak £300 (A J Heating & Plumbing based in AL1).
Comparing plumbers estimates for Fix a leak 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 for fixing a leak in your home by posting your job to plumbers in Harpenden.