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Low Water Pressure in Dorchester, MA

Dorchester has 33,281 occupied homes across 3 ZIP codes, and the typical one was built in 1938. 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.
Dorchester sits 28 years older than the MA median of 1966. Of the 176 MA towns we route calls in, its housing is older than 99% of them, and by number of homes it ranks 7th.
What 1938 tells you about the pipe in Dorchester
Housing of this vintage generally means galvanized steel supply pipe throughout, most of it decades past the point where the zinc lining has gone and rust has begun closing the bore from the inside. In houses this old the pressure loss is usually gradual rather than sudden, and it affects the whole house rather than one tap. More on pre-1940 supply pipe.
34% of occupied homes in Dorchester are owner-occupied, 43 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 Dorchester ZIP codes is $71,810, 44% below the MA median of $127,270.
Before calling anyone in Dorchester, 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.
Build year and occupied homes by ZIP code in Dorchester
| ZIP | Typical build year | Occupied homes |
|---|---|---|
| 02121 | 1950 | 10,363 |
| 02122 | 1938 | 9,159 |
| 02125 | 1938 | 13,759 |
Nearby towns we cover
- Walpole typical build 1979 · 41 years newer
- Westwood typical build 1968 · 30 years newer
- Wrentham typical build 1982 · 44 years newer
- Boston typical build 1955 · 17 years newer
- Roxbury typical build 1962 · 24 years newer
- Roxbury Crossing typical build 1974 · 36 years newer
Worth reading for a 1938-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 Dorchester
- 02121
- 02122
- 02125
Low water pressure help near me in Dorchester
Give us your Dorchester 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.