Greeley · typical $200–$600
Frozen drain lines in Greeley
Out on the plains, Greeley's winter wind finds every gap in a crawlspace and every exposed pipe on the north side of a house. That's why drains freeze here in cold snaps that wouldn't bother a Denver home.

Frozen drain line in Greeley?
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Wind is the difference
Crawlspace vents, garage doors and the spots where pipes exit the house all let wind-driven cold reach drains. Older brick homes near downtown with crawlspace additions, and newer west Greeley homes with long garage runs, both see it.
What to do
- 01
Stop using the drain
More water just adds to the ice.
- 02
Block the wind
Close crawlspace vents and the garage door; cover vents with foam board if needed.
- 03
Warm gently
Open cabinets and add a supervised space heater near the pipe. No flames.
- 04
Call if it doesn't clear
A plumber thaws from inside the line with steam or hot water.
Older Greeley homes vs. west Greeley
Near downtown and around the university, brick homes often have additions or back rooms on crawlspaces, sometimes with vents that were left open year round. Those vents are where the cold comes in. In west Greeley's newer subdivisions, the risk moves to the garage: laundry rooms on the garage wall and bathrooms above it.
Either way, the condensate line from a high-efficiency furnace is worth checking every winter. Where it exits on a windward wall, ice can block it within a few hours and shut the furnace down.
Common questions
Why do drains freeze more in Greeley than Denver?+
Colder, longer spells and stronger wind on the plains push cold into crawlspaces and garages.
Can I prevent it?+
Insulate exposed drains, seal crawlspace vents for winter and protect condensate line exits.
Will a frozen drain burst?+
Drains aren't under pressure, so it's less common than supply lines, but older pipe can crack.