Every winter along the Front Range brings at least a few hard freezes, and every year we see the same pattern: homes that spent a few minutes preparing come through fine, and homes that didn't end up calling us about a burst pipe. Winterizing isn't complicated. It's a short list of specific, physical steps.
Disconnect And Drain Outdoor Hoses
A garden hose left attached to an outdoor spigot traps water in the line between the spigot and the shutoff, and that trapped water has nowhere to expand when it freezes. Disconnect every hose before the first hard freeze of the season, drain it fully, and store it somewhere it won't be sitting in standing water itself.
Insulate Exposed Pipe In Unheated Spaces
Crawlspaces, unheated garages, and exterior walls are where most freeze-related bursts actually happen, because pipe runs in those areas get far less benefit from your home's regular heating than pipe inside conditioned living space. Foam pipe insulation sleeves are inexpensive and slide directly over exposed pipe in a few minutes per section. Focus first on any pipe you can see running along an exterior wall or through an unheated crawlspace, since those are the highest-risk spots.
Keep Cabinet Doors Open On Exterior-Wall Plumbing
Kitchen and bathroom sinks on exterior walls often have supply lines running close to the outside wall inside the cabinet below. On the coldest nights, opening those cabinet doors lets warmer household air reach the pipe directly, which measurably reduces freeze risk compared to a closed cabinet trapping cold air against the pipe.
Know Where Your Main Shutoff Valve Is
This one isn't about prevention, it's about limiting damage if prevention fails anyway. If a pipe does burst despite your best efforts, the speed of your response matters more than almost anything else, and that starts with knowing exactly where your main shutoff valve is before you need it. Find it now, while nothing is wrong, rather than searching for it during an actual emergency.
Let A Trickle Run On The Coldest Nights
On nights with genuinely extreme cold, letting a faucet on an exterior-wall line drip slightly keeps water moving through the pipe, and moving water is far less likely to freeze solid than standing water. This isn't necessary every cold night, but it's a reasonable precaution during the coldest stretches of a Front Range winter, particularly for a home with known vulnerable pipe runs.
If You're Leaving Town
A home left unattended during a cold snap carries more risk simply because no one is there to catch an early problem. Keep the thermostat set no lower than the mid-50s rather than shutting heat off entirely, and if possible, have a neighbor or house sitter check the home periodically during an extended absence in winter.
What This Doesn't Cover
Winterizing exposed and vulnerable indoor pipe is different from winterizing a vacant property, a pool, or an irrigation system, each of which has its own separate preparation steps beyond the scope of this list. If you have an irrigation system, it should be professionally blown out and drained before the first freeze, since residual water in those lines is a common freeze failure point that indoor pipe winterizing doesn't address.
If A Pipe Freezes Or Bursts Anyway
Even good preparation doesn't guarantee nothing will ever happen during an unusually hard freeze. If you do end up with a burst pipe, shutting off the main valve immediately and calling for emergency burst pipe repair limits the damage far more than anything else you can do in the moment. A water heater's exposed connections or a garage-mounted unit freezing is a related but separate issue worth having checked as part of the same call. A frozen connection can strain fittings even before an actual break occurs, which sometimes shows up afterward as a slow leak needing water heater repair.
A Quick Pre-Winter Checklist
Disconnect and drain hoses. Insulate exposed pipe in crawlspaces and unheated garages. Open cabinet doors on exterior-wall plumbing during hard freezes. Confirm you know where your main shutoff is. Let vulnerable lines drip on the coldest nights. Have irrigation systems professionally blown out. None of these take long individually, and together they meaningfully reduce the odds of an emergency call this winter.
Homes We See This Most In
Older homes with pipe runs installed before modern insulation codes carry more of this risk than newer construction, which is part of why we see more winter burst-pipe calls in established neighborhoods around Loveland and nearby towns like Berthoud's historic downtown than in newer subdivisions built to current code. If your home falls into that older category, it's worth being a little more thorough with the insulation step specifically.
What About Homes With Crawlspace Vents?
Many older Front Range homes have foundation vents designed to ventilate the crawlspace year-round, which was standard building practice for decades but works against you during a hard freeze by letting cold outside air directly into the space where your pipes run. Some homeowners close removable foundation vent covers for the coldest months specifically for this reason, then reopen them once the worst of winter passes, since year-round closure can trap unwanted moisture instead.
Sump Pumps And Winter
If your home has a sump pump, it's worth a quick check before winter too, since a pump that fails during a winter thaw or ice-related groundwater issue can lead to a flooded basement on top of whatever freeze-related pipe issues might also be happening. A battery backup for your sump pump is a reasonable investment for any home that's had basement moisture issues in the past, since power outages during winter storms are exactly when a sump pump is needed most.
A Realistic Time Estimate
None of the steps above take long individually. Draining hoses takes a few minutes. Insulating a handful of exposed pipe sections takes perhaps twenty to thirty minutes total for most homes. Locating your main shutoff, if you don't already know where it is, takes only as long as it takes to walk your basement or utility area once. Altogether, a thorough winterizing pass is realistically an hour or less for most homes, which is a small time investment against the cost and disruption of an actual burst pipe.
What A Historically Cold Front Range Winter Looks Like
Winters along the Front Range are known for rapid, dramatic temperature swings rather than a steady, predictable cold, which is part of what makes freeze prevention here different from a climate with a long, consistently cold winter. A 60-degree day can be followed by a hard freeze overnight, and it's exactly that kind of rapid swing, rather than a long sustained cold snap, that catches unprepared homes off guard most often. Preparing before the season starts, rather than reacting to a specific forecast each time, is the more reliable approach given how unpredictable individual cold snaps can be.
Don't Forget The Water Heater Itself
A water heater in an unheated garage or an uninsulated utility space is exposed to the same freeze risk as any other pipe, and the connections at the top of the unit are often less insulated than the tank itself. If your water heater sits in one of these vulnerable locations, insulating the exposed supply and discharge connections is worth adding to your winterizing list alongside the more commonly mentioned exposed pipe runs elsewhere in the home.
Want a professional walkthrough of your home's specific vulnerable spots before winter hits? Call Loveland Pro Plumbing at (970) 708-6013.