Anchorage, AK
Frozen water lines in Anchorage
Updated · Editorial team; not yet technically reviewed
Short answer
In Anchorage, AWWU's tariff makes customers responsible for thawing frozen water service connections and extensions all the way from the main to the building, unless the freeze was caused by the utility. Customers must also keep the key box lid and thaw wire exposed, marked and accessible year-round.
What's different in Anchorage
Customers are responsible for thawing all frozen water service connections and service extensions from the main to the premises, unless freezing was caused by a utility act not in conformity with the AWWU water tariff. [1]
AWWU maintains and repairs mains and accepted service connections, but is not responsible for the service extension or for freeze damage to service connections. [1]
Customers must keep the key box lid and thaw wire exposed, with their location marked if necessary, and maintain access to the key box at all times. [1]
AWWU's FAQ describes the utility as responsible for repairs from the main to the property line, and homeowners as responsible from the property line to the house, including the interior shutoff valve. [2]
What the thaw wire is for
Many Anchorage service lines have a thaw wire: a conductor that lets a contractor pass electric current through the line to warm and thaw it from the surface. It only helps if it can be found, which is why the tariff requires the key box lid and thaw wire to stay exposed and marked, even under snow. Mark yours before winter so a contractor can reach it in an emergency.
Who handles what
| Situation | Responsible |
|---|---|
| Frozen service connection or extension | Customer thaws it, unless AWWU caused the freeze |
| Freeze damage to the service connection | Not AWWU's responsibility |
| Mains and accepted service connections (non-freeze repairs) | AWWU |
| Line from the property line to the house and the inside shutoff | Homeowner |
Keeping an Anchorage line from freezing
- Keep heat on in the room where the line enters, and seal drafts around it.
- Keep the key box and thaw wire marked and clear of snow and ice.
- Don't let a vacant house go unheated; drain the plumbing if it will be empty.
- Watch for slow, sputtering flow in a deep cold snap and call early, before the line freezes solid.
Further reading: How to thaw frozen pipes safely.
What Anchorage homeowners usually check next
- SymptomNo water in the house
Common questions
Who pays to thaw a frozen water line in Anchorage?
The customer, for service connections and extensions from the main to the building, unless the freeze was caused by AWWU.
What is a thaw wire on an Anchorage water line?
A conductor that lets a contractor run electric current through the line to thaw it from the surface.
Do I have to keep my key box uncovered in winter?
Yes. AWWU's tariff requires the key box lid and thaw wire to stay exposed, marked if needed, and accessible at all times.
Will AWWU repair freeze damage to my service line?
No. The utility isn't responsible for freeze damage to service connections.
Where does AWWU's responsibility end?
AWWU maintains mains and repairs from the main to the property line for non-freeze issues; the homeowner owns the line from the property line in, including the inside shutoff valve.
My Anchorage water is barely trickling. What should I do?
Call a thawing contractor early, before the line freezes solid, and keep the entry area heated.
Can AWWU be responsible for a frozen line?
Only if the freeze was caused by an act of the utility not in conformity with its tariff.
How do I protect a vacant Anchorage home's water line?
Keep the heat on or have the plumbing drained and winterized.
Who thaws frozen lines in Anchorage?
Private contractors who do electric or steam thawing; mark your thaw wire so they can find it.
What if a frozen pipe bursts inside my house?
Shut off the main inside valve and call for burst pipe repair.
More plumbing help in Anchorage
How other cities handle it
- Frozen pipe and water line help in St. PaulFrozen pipes in St. Paul: what Saint Paul Regional Water Services covers, why frozen meter damage is billed to owners, prevention steps, and what to do first.
- Frozen water service lines in MinneapolisFrozen water lines in Minneapolis: owners own the line from the main to the meter, who pays to thaw it, the City's contractor list and emergency number.
- Frozen pipes and water meters in BuffaloFrozen meters in Buffalo: the Water Board rule that owners protect meters from freezing, charges for damage, shutoff if unpaid, and prevention.
- Frozen pipes and meters in PhiladelphiaFrozen pipes in Philadelphia: keep the meter area above 40°F, trickle a faucet, shut off outdoor lines, check neighbors first.
- Frozen pipes in San AntonioFrozen pipes in San Antonio: pipes past the SAWS meter are the owner's, how to shut water off at the meter, SAWS freeze tips, and what not to do.
- Frozen pipes in DallasFrozen pipes in Dallas: DWU's freeze prep, the private shutoff you're responsible for, required sprinkler freeze sensors, and what to do in a water emergency.
- Frozen pipes in Houston: why the city says don't dripFrozen pipes in Houston: Houston Public Works' prep tips, why it has advised against dripping faucets (pumps, not towers), and shutting off and draining instead.
Sources (2)
- Anchorage Municipal Code / AWWU Water Tariff · checked 2026-10-03
- AWWU, Water Service FAQs · checked 2026-10-03