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Low Water Pressure in South Boston, MA

South Boston has 17,895 occupied homes across 1 ZIP code, and the typical one was built in 1947. That year is the most useful single fact for working out why the water pressure is weak, because it predicts what the supply pipe is made of.
South Boston sits 19 years older than the MA median of 1966. Of the 176 MA towns we route calls in, its housing is older than 82% of them, and by number of homes it ranks 24th.
What 1947 tells you about the pipe in South Boston
Housing of this vintage generally means galvanized steel as standard, and at this age the inside diameter of a half-inch line can be materially narrower than it was when it was fitted. The classic sign is that pressure is worst at the fixtures furthest from where the water comes in. More on 1940s supply pipe.
45% of occupied homes in South Boston are owner-occupied, 32 points below the MA figure of 77%. It matters here because the run between the meter and the house belongs to the property owner, not the utility.
Median household income across South Boston ZIP codes is $156,373, 23% above the MA median of $127,270.
Before calling anyone in South Boston, check whether every tap is weak or just one. Normal supply is 45–80 psi and under 40 psi is low — how to test it in a minute. Whole house is a supply problem worth a call; one tap is usually a five-minute job you can do yourself.
South Boston against the nearest MA towns we cover
| Town | Typical build year | Occupied homes |
|---|---|---|
| South Boston | 1947 | 17,895 |
| Boston | 1955 | 70,336 |
| Roxbury | 1962 | 11,764 |
| Roxbury Crossing | 1974 | 4,564 |
| Dorchester | 1938 | 33,281 |
Nearby towns we cover
- Dorchester Center typical build 1938 · 9 years older
- Mattapan typical build 1952 · 5 years newer
- East Boston typical build 1938 · 9 years older
- Charlestown typical build 1938 · 9 years older
- Jamaica Plain typical build 1938 · 9 years older
- Roslindale typical build 1938 · 9 years older
Worth reading for a 1947-era home
- galvanized supply pipe
- whole-house pressure loss
- pressure worse upstairs
- how to test your pressure
- low pressure on hot only
ZIP codes we route in South Boston
- 02127
Low water pressure help near me in South Boston
Give us your South Boston ZIP code and what is happening. We check it against partner coverage and connect you with an independent contractor covering that area. We do not do the work and you are never charged.