Colorado · 11 covered places · 24 ZIP codes
Plumbers in Boulder County, CO
We cover 11 cities and towns in Boulder County, Colorado, across 24 ZIP codes, including Longmont, Boulder, Louisville. About 347,000 people live in those ZIP codes. Most homes date from 1980 to 1999, old enough that original water heaters, valves and drains are wearing out.
| Year built | Share of homes |
|---|---|
| Before 1940 | 6% |
| 1940–1959 | 6% |
| 1960–1979 | 28% |
| 1980–1999 | 32% |
| 2000 or later | 28% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
What goes wrong in Boulder County homes
Natural gas in most homes
69% of occupied homes here heat with utility gas, so gas water heaters, ranges and dryers are common. That means gas line extensions for new appliances, flexible connector replacements and venting checks when a water heater is swapped. If you smell gas, leave first and call the gas utility from outside. See gas line repair.
1980s and 90s construction and polybutylene
32% of homes were built between 1980 and 1999. Polybutylene supply pipe was installed widely in US homes from about 1978 to 1995, so houses from these years are worth checking for gray plastic pipe stamped PB2110, usually visible at the water heater or under sinks. Insurers and buyers often ask about it. See polybutylene replacement.
Long, hard winters
40% of homes here were built before 1980, when pipes were more often run through exterior walls and uninsulated crawl spaces. In a long Colorado winter those are the lines that freeze and split. See frozen and burst pipe repair.
1960s and 70s homes reaching end of life
28% of the housing here dates from 1960 to 1979. Original copper supply lines in those homes are now 45 to 65 years old, and cast iron drains of that age scale up inside and crack. Seized shutoff valves, pinhole leaks and recurring main-line clogs are common calls. A camera inspection shows the condition of the sewer line before anyone digs.
Common plumbing work in Boulder County
City pages in Boulder County
Other covered towns in Boulder County
- Allenspark (1 ZIP)
- Eldorado Springs (1 ZIP)
- Jamestown (1 ZIP)
- Lafayette (1 ZIP)
- Louisville (1 ZIP)
- Lyons (1 ZIP)
- Nederland (1 ZIP)
- Niwot (1 ZIP)
- Ward (1 ZIP)
Boulder County plumbing FAQ
Which towns in Boulder County do you cover?
11 places: Allenspark, Boulder, Eldorado Springs, Jamestown, Lafayette, Longmont, Louisville, Lyons, Nederland, Niwot, Ward. Enter your ZIP code to confirm coverage for your street.
How old are homes in Boulder County?
Across the covered ZIP codes, Census estimates put 12% of homes as built before 1960, 28% from 1960 to 1979, 32% from 1980 to 1999 and 28% in 2000 or later.
Who licenses plumbers in Boulder County, CO?
Colorado's State Plumbing Board, part of the Division of Professions and Occupations, licenses plumbers; most jurisdictions also require permits.
Housing and heating figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Boulder County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.
Need a plumber in Boulder County?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.