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Plumbing Inspection in Maryland

Across the 158 Maryland towns we route calls in, 20% of owner households moved in during 2018 or later. Every one of those sales came with an inspection, and every one of those inspections excluded the same list of things.

The one-paragraph answer

In Maryland, 20% of owner households across the 158 covered towns arrived in 2018 or later. The exclusions are the part worth reading: a home inspection covers what can be seen and operated, and a buried lateral is neither.

Source: US Census Bureau, American Community Survey 5-year estimates, table B25038.

PresalePipe is a referral service, not a contractor or a home inspector. We connect homeowners and buyers with independent contractors. Contractors are required to hold whatever credential their state or municipality demands. Every state page sets out who licenses plumbers there and where to check, so you can confirm before work begins. We carry out no inspections and no work, we do not set prices, and we never charge homeowners anything — the contractors in our network pay us when we route them a call.

Turnover across Maryland

Towns in MarylandCount
Change hands often (28% of owners or more since 2018)12
About the middle (16–28%)99
Rarely change hands (under 16%)47

The spread inside the state is the point. Fort George G. Meade is highest at 100% of owners having arrived since 2018; Big Pool is lowest at 4%. A state figure describes neither of them.

Source: US Census Bureau, American Community Survey 5-year estimates, table B25038, 2023 release. Weighted across 1,480,852 occupied housing units, of which 1,023,377 are owner-occupied. This measures recent moves as a share of the housing stock, not sales per year.

The largest towns we route in Maryland

TownOwners who moved in since 2018Occupied homes
Silver Spring19%113,973
Baltimore17%80,213
Rockville19%57,555
Frederick26%56,763
Gaithersburg18%50,758
Laurel20%44,583
Annapolis22%40,203
Columbia20%39,859

What is excluded, everywhere

The exclusions do not vary by state. Both InterNACHI and ASHI describe the inspection as covering readily accessible, visually observable systems and state that it is not technically exhaustive. Both exclude wells and pumps, septic and wastewater treatment, water quality and potability, fire sprinklers and gas leak testing. InterNACHI additionally names water flow and pressure, floor drains, shower pan testing and polybutylene piping.

What varies by town is how many people here have recently had a report in their hands to read the exclusions in. The full list is on its own page.

Source: InterNACHI Home Inspection Standards of Practice; ASHI Standard of Practice.

Checking a plumber in Maryland

Checking a credential in Maryland

Maryland licenses are issued by the Maryland State Board of Plumbing, Department of Labor, which publishes a public search you can use before work begins.

Towns we route in Maryland

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. Inspections are the theme here; calls of every kind are routed.

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