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Low Water Pressure in Hawaii
Town-by-town build-era data for 30 places we route calls in, and what it says about your pipe.

Free to homeowners in Hawaii — the contractor pays us for the introduction, you never do.
The short answer
Across the 30 Hawaii towns covered here, the typical home dates from around 1981. Build year predicts supply pipe material better than anything else available free, and the pipe is what decides whether every tap is weak or only one.
Source: US Census Bureau, American Community Survey 5-year estimates, table B25035.
- You are never chargedContractors pay us when we route them a call. There is no cost to the homeowner, ever.
- Every figure names its sourceThe numbers on this site come from public data and the page says which, so you can check them.
- We say where we coverCalls are routed by ZIP code to independent contractors.See the coverage
- We say when not to callIf the fix is a few minutes of your own time, this site tells you that instead of selling you a visit.
What this site is
PressureTrace is a referral service, not a plumbing contractor. We connect homeowners 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 do not perform plumbing 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.We route Hawaii calls in 30 towns. Each page carries that town's typical build year, because it predicts what the supply pipe is made of.
- Honolulu 160,062 homes · typical build 1973
- Ewa Beach 23,441 homes · typical build 1997
- Waipahu 20,259 homes · typical build 1983
- Mililani 19,126 homes · typical build 1985
- Hilo 17,912 homes · typical build 1977
- Kaneohe 17,867 homes · typical build 1973
- Kailua 16,854 homes · typical build 1969
- Kapolei 15,054 homes · typical build 1999
- Aiea 14,546 homes · typical build 1975
- Kailua Kona 14,149 homes · typical build 1988
- Waianae 13,262 homes · typical build 1978
- Wahiawa 13,159 homes · typical build 1977
- Pearl City 12,227 homes · typical build 1972
- Kahului 8,127 homes · typical build 1979
- Kamuela 5,021 homes · typical build 1996
- Haiku 4,076 homes · typical build 1990
- Haleiwa 2,775 homes · typical build 1973
- Waikoloa 2,695 homes · typical build 1995
- Captain Cook 2,579 homes · typical build 1986
- Waimanalo 2,508 homes · typical build 1975
- Waialua 2,291 homes · typical build 1973
- Ocean View 1,801 homes · typical build 2000
- Holualoa 1,524 homes · typical build 1983
- Honokaa 1,420 homes · typical build 1968
- Hauula 1,206 homes · typical build 1976
- Laie 1,023 homes · typical build 1975
- Kahuku 803 homes · typical build 1978
- Kaaawa 544 homes · typical build 1976
- Hawi 512 homes · typical build 1982
- Hana 462 homes · typical build 1990
Source: US Census Bureau, American Community Survey 5-year estimates, 2023 release — tables B25003 (occupied housing units) and B25035 (all housing units, vacant included).
Also covered
Camp H. M. Smith, Fort Shafter, Honaunau, Honomu, JBPHH, Keauhou, Kunia, MCBH Kaneohe Bay, Schofield Barracks, Tripler Army Medical Center, Wake Island, Wheeler Army Airfield.
Checking a credential in Hawaii
Hawaii licenses are issued by the Hawaii Department of Commerce and Consumer Affairs, Professional and Vocational Licensing, which publishes a public search you can use before work begins.
Where these numbers come from
Every figure on this site is public and attributed. You can go and check any of them.
- HousingUS Census BureauAmerican Community Survey 5-year estimates, table B25035 — the median year a town’s homes were built, which is what predicts the supply pipe.
- PressureGrundfosIts homeowner guide to low water pressure is where the 45–80 psi normal range and the 40 psi threshold come from.
- WagesUS Bureau of Labor StatisticsOccupational Employment and Wage Statistics for plumbers, 47-2152, behind every figure on the cost page.
- PipeworkUS Environmental Protection AgencyThe Lead and Copper Rule Improvements fact sheet, for what a service line inventory does and does not record.
What happens when you call
No form, no quote tool, no waiting for an email.
- You tell us what the water is doingOne short conversation. If it turns out to be something you can fix in five minutes, we will say so.
- We route the call in HawaiiWe match your ZIP code to an independent contractor who already covers your area — not a call center three states away.
- They quote, you decideWe do not set prices and we never charge you. The contractor pays us for the introduction.
- 4,387towns with a page of their own
- 38states we route calls in
- $0what a homeowner ever pays us
Still not sure whether it is the whole house or one fixture? That distinction decides who you need and what it costs, and it takes one conversation. We route you to a contractor who covers your ZIP code, you are never charged, and if the answer turns out to be an aerator we will say so. And it need not be pressure — this number takes any plumbing problem.
Call (866) 838-2750