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Plumbing Inspection in Marlborough, NH
Marlborough rarely changes hands — 11% of owner households arrived in 2018 or later. The upside is stability. The other side of it is that nothing has triggered an inspection in most of these houses for years.
The one-paragraph answer
Marlborough is settled, with 11% of owner households having moved in since 2018. The plumbing most likely to matter in a house held that long is the part no standard inspection covers, which is the buried sewer lateral.
Source: US Census Bureau, American Community Survey 5-year estimates, table B25038.
When Marlborough moved in
Low turnover means the last inspection on most of these houses is old, and the systems in them have had years to change since. Nothing about a settled town makes plumbing age more slowly.
| Owner households in Marlborough | Share of all owners |
|---|---|
| Moved in 2021 or later | 2% |
| Moved in 2018–2020 | 9% |
| Moved in 2010–2017 | 23% |
| Moved in before 2010 | 66% |
Source: US Census Bureau, American Community Survey 5-year estimates, table B25038 (tenure by year householder moved into unit), 2023 release. Universe: 930 occupied housing units, of which 625 are owner-occupied. This counts when the CURRENT occupant moved in, so it measures recent moves as a share of the housing stock — not a rate of sales per year.
What the inspection will not cover
Clothes washer connections are excluded, which surprises people because the machine is in the house and plumbed into it. The supply valves behind it and the standpipe it drains into were not part of the job.
Source: InterNACHI Home Inspection Standards of Practice; ASHI Standard of Practice.
What it is required to cover
Knowing what is required is what lets you read the report properly. A finding against something the standard covers is a finding; silence about something it excludes is not reassurance. Most people read the document without that distinction and it is the difference between two very different pieces of paper.
Worth ten minutes before you read your own report: everything the two standards require, in the order an inspector does it.
What to do about it
Write down where the main water shut-off and the main fuel shut-off are. InterNACHI requires both locations to be described, and they are the two most useful lines in the document.
The two standards are published in full and worth ten minutes: what is excluded, what is covered, and why the drains outside the house are a separate instruction.
Other New Hampshire towns we route in
Checking a plumber in New Hampshire
Checking a credential 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.
Inspection report in front of you?Read us the plumbing lines and nothing else — we do not want the document. We will route you to a contractor covering your area who can quote the items on it, and you are never charged by us. We take Marlborough requests that never appeared on any inspection.
Call (888) 764-3501