Low water pressure · diagnosed first
Low Water Pressure in Boulder, Colorado 80301
The typical home here dates from 1978, which predicts the supply pipe. Whole house or one tap, and who to call.
Free to homeowners in Boulder — the contractor pays us for the introduction, you never do.
The short answer
The median build year in Boulder is 1978, which is copper territory and sometimes copper with polybutylene in part of the run. Normal supply is 45 to 80 psi and under 40 psi is low, so a gauge on an outside tap settles whether this is a supply problem at all.
Sources: US Census Bureau, American Community Survey 5-year estimates, table B25035; normal and low ranges as published by Grundfos in its homeowner guide to low water pressure.
Boulder has 54,239 occupied homes across 7 ZIP codes. Across all its housing, vacant units included, the median build year is 1978 — the most useful single fact for working out why the water pressure is weak, because it predicts what the supply pipe is made of.
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.Boulder sits 12 years older than the CO median of 1990. Of the 93 CO towns we route calls in, its housing is older than 83% of them, and by number of homes it ranks 8th.
What 1978 tells you about the pipe in Boulder
Housing of this vintage generally means copper as the usual supply material, so corrosion narrowing the pipe is far less likely. In houses of this era a whole-house pressure drop points at the pressure-reducing valve, the main shut-off, or the supply side of the meter rather than at the pipe itself. More on 1970s supply pipe.
53% of occupied homes in Boulder are owner-occupied, 12 points below the CO figure of 65%. It matters here because the run between the meter and the house belongs to the property owner, not the utility.
Median household income across Boulder ZIP codes is $92,974, 10% below the CO median of $103,819.
Source: US Census Bureau, American Community Survey 5-year estimates, 2023 release — tables B25003 (occupied units), B25035 (all units) and B19013 (households). How these are aggregated.
The first thing to establish in Boulder is whether the problem is the house or one fixture, and it takes two minutes of walking around. Housing of this era can be copper throughout or copper with polybutylene in part, and the two fail differently enough that the pattern matters. Normal is 45–80 psi, under 40 psi is low — test it. Whole house is a call; one tap usually is not.
Build year and occupied homes by ZIP code in Boulder
| ZIP | Typical build year | Occupied homes |
|---|---|---|
| 80301 | 1985 | 12,198 |
| 80302 | 1974 | 12,443 |
| 80303 | 1978 | 11,496 |
| 80304 | 1979 | 11,179 |
| 80305 | 1970 | 6,923 |
Nearby towns we cover
- Parker typical build 2001 · 23 years newer
- Sedalia typical build 1982 · 4 years newer
- Strasburg typical build 2002 · 24 years newer
- Watkins typical build 2002 · 24 years newer
- Denver typical build 1972 · 6 years older
- Thornton typical build 1995 · 17 years newer
Worth reading for a 1978-era home
- pressure-reducing valves
- whole-house pressure loss
- galvanized supply pipe
- a main shut-off left part-closed
- how to test your pressure
ZIP codes we route in Boulder
- 80301
- 80302
- 80303
- 80304
- 80305
- 80309
- 80310
Low water pressure help near me in Boulder
Give us the Boulder ZIP code and how many taps are affected — it is the fastest way to get you to somebody useful. We connect you with an independent contractor covering that area. We do not do the work and you are never charged. Pressure is only the name on the door; the line is wider than that.
Low Water Pressure coverage in Boulder, CO
Boulder is in Boulder County, Colorado. It covers 11 ZIP codes: 80301, 80302, 80303, 80304, 80305, 80306, 80307, 80308, 80309, 80310, 80314. We route low water pressure calls from every one of them.
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 BoulderWe match 80301 to an independent contractor who already covers Boulder — 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.