Keep Smiling Plumbing, Electric, Heating & Cooling delivers pressure regulation solutions that protect Decatur area homes from damaging water hammer and high-pressure stress on fixtures. Our plumber responded to complaints of loud knocking sounds whenever the shower or washing machine ran. We discovered water pressure at a dangerous 120 psi and a failed pressure regulator causing the noise. Book your plumbing inspection and let us protect your home. We installed a new Watts regulator, replaced the failed expansion tank with proper copper support, and set pressure to a safe 60 psi. After testing every fixture, the hammering sounds were completely gone. Our repairs come backed by a one-year warranty.