Coconino County · Flagstaff, AZ
Plumbers in Flagstaff, AZ
Flagstaff is in Coconino County, Arizona. About 95,000 people live in the 5 ZIP codes we cover here, in roughly 41,000 homes, 52% of them single-family detached houses. The biggest share of the housing was built between 1980 and 1999 (41%), and that age decides most of what goes wrong with the plumbing.
- Same-day service when a plumber is available
- 5 ZIP codes covered
ZIP codes we cover in Flagstaff
86001, 86003, 86004, 86005, 86011
Flagstaff homes and their plumbing
Here is how Flagstaff's homes break down by year built, based on Census estimates for the covered ZIP codes: before 1940 2%, 1940–1959 6%, 1960–1979 19%, 1980–1999 41%, 2000 or later 32%. Most homes are old enough that original pipe, valves and water heaters are wearing out, but young enough that full repipes are a case-by-case call.
| Year built | Share of homes |
|---|---|
| Before 1940 | 2% |
| 1940–1959 | 6% |
| 1960–1979 | 19% |
| 1980–1999 | 41% |
| 2000 or later | 32% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
- Residents in covered ZIPs
- 95,135
- Housing units
- 40,861
- Single-family detached
- 52%
- Owner-occupied
- 51%
- Heated with utility gas
- 63%
- Heated with electricity
- 23%
- Heated with propane
- 5%
What goes wrong in Flagstaff homes
1980s and 90s construction and polybutylene
41% 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.
Natural gas in most homes
63% 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.
Very hard water
Arizona water is generally very hard. With 63% of homes here on gas, scale settles as sediment in gas water heater tanks, which then rumble and wear out early. See water softener installation.
Common calls in Flagstaff
- Polybutylene Pipe Replacement
- Gas Line Repair
- Water Softener Installation
- Water Heater Replacement
- Drain Cleaning
- Main Water Line Repair
- Sewer Line Repair
Also available in Flagstaff: emergency plumbing and every plumbing service.
Flagstaff at a glance
- County
- Coconino County
- ZIP codes
- 86001, 86003, 86004, 86005, 86011
Flagstaff plumbing FAQ
How old are the homes in Flagstaff?
In the ZIP codes we cover around Flagstaff, Census estimates put 8% of homes as built before 1960, 19% from 1960 to 1979, 41% from 1980 to 1999 and 32% in 2000 or later. The largest group is 1980–1999 (41%).
Who licenses plumbers in Flagstaff, AZ?
The Arizona Registrar of Contractors (ROC) licenses plumbing contractors; its website shows license class, status and complaint history.
Are water heaters in Flagstaff usually gas or electric?
Census data for the area show 63% of homes heating with utility gas, 23% with electricity and 5% with propane. Water heaters often use the same fuel as the home's heat, so utility gas is the most common here, but check the label on your tank before you shop for a replacement.
Guides for Flagstaff homeowners
Nearby areas
Also covered nearby: Bellemont (12 mi), Munds Park (17 mi), Parks (21 mi), Mormon Lake (21 mi), Sedona (25 mi).
Housing, heating and population figures are US Census Bureau American Community Survey 2023 5-year estimates for the ZIP code areas we cover in Flagstaff, so they may include neighboring communities that share those ZIP codes.
Need a plumber in Flagstaff?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.