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Shower Valve Replacement in Portsmouth, New Hampshire 03801
81% of homes in Portsmouth were built before 1990, which is broadly before pressure-balancing anti-scald valves became the default fitting in new work.
The short answer
81% of homes in Portsmouth were built before 1990, which is broadly before pressure-balancing anti-scald valves became the default fitting in new work.
Source: US Census Bureau, American Community Survey, table B25034, five-year estimates. A margin of error is published alongside every estimate.

Portsmouth in numbers
| Occupied homes | 10,899 |
|---|---|
| Owner-occupied | 53% |
| Detached houses | 41% |
| Built before 1990 | 81% |
| Built since 2000 | 13% |
Shower Valve Replacement coverage in Portsmouth, NH
Portsmouth is in Rockingham County, New Hampshire. It covers 4 ZIP codes: 03801, 03802, 03803, 03804. We route shower valve replacement calls from every one of them.
Cartridge or valve body
A shower that drips is usually the cartridge, which is a part. A shower that will not hold a temperature when a tap runs elsewhere is usually the valve, which is behind the wall.
Access is the cost
Replacing a valve body usually means opening the wall behind it, or working from the other side. Ask which, and who makes it good, before the work starts.
Nearby cities we cover
Checking a plumber in New Hampshire
The authority is the New Hampshire Office of Professional Licensure and Certification, Mechanical Safety and Licensing Board. New Hampshire licenses plumbers but publishes no online licensee search, so verification means contacting the office directly.
Shower Valve Replacement in Portsmouth? Tell us your ZIP code and what is happening. We route you to an independent contractor who covers ZIP 03801 and the other 3 this city covers. We carry out no work and set no prices, you are never charged, and the contractors pay us when we route a call.
Call (888) 752-7111