Written by Curiazza Plumbing | Published on July 2025
Preventing pipes from freezing in Colorado starts with insulating exposed pipes, keeping your heat above 55°F, and letting faucets drip during extreme cold. At elevations above 9,000 feet in towns like Fairplay and Alma, temperatures regularly drop below -20°F in winter, making freeze prevention a serious priority.
This guide walks you through the most effective prevention methods, what to do if a pipe does freeze, and when to call a professional. Whether your home is a full-time residence or a mountain cabin, these steps apply to you.
Understand Why Colorado Pipes Freeze So Easily
Fairplay sits at 9,953 feet above sea level. Alma, just a few miles north, is the highest incorporated town in the United States at 10,578 feet. These elevations mean temperatures plunge fast and stay cold for long stretches.
Water freezes at 32°F, but pipes typically freeze when ambient air around them drops below 20°F for a sustained period. In Park County, that threshold gets crossed dozens of times each winter.
Pipes most at risk include:
- Pipes running through exterior walls with little insulation
- Pipes in unheated crawl spaces or basements
- Pipes in garages attached to the home
- Pipes serving outdoor spigots and hose bibs
- Supply lines in vacation cabins left unoccupied during cold snaps
When water freezes inside a pipe, it expands with roughly 2,000 pounds per square inch of pressure. That force splits copper, PVC, and even steel pipes. The real damage usually shows up when the pipe thaws and water rushes out of the crack.
Insulate Pipes Before Winter Arrives
Pipe insulation is the single most cost-effective freeze prevention step you can take. It does not keep pipes warm on its own, but it slows heat loss dramatically during cold nights.
Here is a quick comparison of the most common insulation types available at hardware stores in Colorado:
| Insulation Type | Best For | Average Cost Per Linear Foot | Ease of Installation |
|---|---|---|---|
| Foam Pipe Sleeves | Straight runs in crawl spaces | $0.50 – $1.50 | Easy, DIY-friendly |
| Fiberglass Wrap | Irregular shapes and elbows | $1.00 – $2.00 | Moderate |
| Electric Heat Tape | High-risk exterior pipes | $2.00 – $5.00 | Moderate, needs outlet |
| Rubber Pipe Insulation | Flexible runs and tight spaces | $1.50 – $3.00 | Easy to moderate |
Electric heat tape is worth the extra investment for pipes that run along an exterior wall or through an unheated garage. Make sure any heat tape you buy is UL-listed and rated for the pipe material you have.
Curiazza Plumbing can inspect your home and identify which pipes are in the highest-risk locations before the first hard freeze hits.
Set Your Thermostat and Heat Strategy Correctly
Your thermostat setting matters more than most homeowners realize. Many people turn the heat way down when they leave for work or go on vacation. In Fairplay and Alma, that strategy can backfire badly.
Follow these heating rules during Colorado winters:
- Keep your thermostat at a minimum of 55°F at all times, even when you are away from home.
- Set it no lower than 65°F during periods of sustained cold below -10°F.
- Open cabinet doors under sinks on exterior walls so heated air can reach the pipes.
- If you have a vacation cabin, use a smart thermostat with remote monitoring so you get alerts if the heat fails.
- Confirm your heating system is serviced before November. A furnace failure at midnight during a blizzard is an emergency on multiple levels.
For homes heated by a boiler or radiant system, make sure the system is properly bled and the antifreeze levels in any hydronic loops are checked annually. Curiazza Plumbing handles those checks as part of winterization service calls.
Let Faucets Drip During Extreme Cold
Letting a faucet drip slightly keeps water moving through the line, which lowers the risk of a freeze. This works because moving water requires more energy to freeze than standing water.
You do not need to run a strong stream. A slow, steady drip from both the hot and cold handles is enough. Focus on faucets that sit on exterior walls or at the end of long pipe runs.
Here is when dripping becomes especially important in Park County:
- When overnight lows are forecast below -10°F
- During multi-day cold stretches with no daytime warming above 15°F
- When wind chills are below -20°F
- During power outages when your heating system cannot run
Yes, this wastes a small amount of water. But it wastes far less than the thousands of gallons that pour out of a burst pipe before you discover the problem. The average burst pipe claim in Colorado runs between $5,000 and $70,000 depending on location and extent of damage.
Winterize Outdoor Spigots and Irrigation Systems
Outdoor hose bibs are a common freeze point that homeowners overlook. Water left sitting in an outdoor spigot or irrigation line will freeze and push back into the interior pipe behind it.
Here is the correct process for winterizing outdoor water access:
| Step | Action | When to Do It |
|---|---|---|
| 1 | Disconnect garden hoses from all spigots | Before first hard freeze, typically October in Fairplay |
| 2 | Shut off the interior shutoff valve feeding the spigot | Same time as step 1 |
| 3 | Open the outdoor spigot to drain residual water | Immediately after shutting interior valve |
| 4 | Blow out irrigation lines with compressed air | Before October 15 in Park County |
| 5 | Install insulated faucet covers on remaining spigots | Before first sustained freeze |
Frost-free sillcocks are a worthwhile upgrade if your spigots are the old style. They drain automatically when you turn them off, which removes the freeze risk entirely. A plumber can swap these out in about an hour per spigot.
Protect Vacation Cabins and Unoccupied Homes
Park County has a large number of part-time residents and vacation cabin owners. An unoccupied home is at much higher freeze risk because there is no one inside to catch a problem early.
If you are leaving your Fairplay or Alma home unoccupied for more than a few days in winter, you have two main options. You can maintain heat above 55°F with a working thermostat and a backup monitoring system. Or you can fully drain and winterize the plumbing system.
A full plumbing winterization involves:
- Shutting off the main water supply to the home
- Draining all supply lines, including hot water lines
- Flushing toilets and adding RV antifreeze to toilet bowls and tanks
- Draining the water heater if the home will be unoccupied for an extended period
- Blowing out lines with compressed air where accessible
- Adding antifreeze to all drain P-traps
Curiazza Plumbing offers winterization service calls for cabins and vacation homes in the Fairplay and Alma area. Scheduling before the season ends saves you from discovering a burst pipe after a long weekend away.
FAQs on Preventing Frozen Pipes in Colorado
What temperature do pipes freeze in Colorado homes?
Pipes are at serious risk when the air around them drops below 20°F for several hours. In Fairplay and Alma, temperatures below that threshold are common from November through March. Interior pipes in well-heated homes rarely freeze, but pipes in unheated crawl spaces and exterior walls are vulnerable even when your thermostat is set at a normal temperature.
Should I drip my faucets overnight in Fairplay, CO?
Yes, dripping faucets is a smart precaution on nights forecast below -10°F in Park County. Focus on faucets connected to pipes that run through exterior walls or unheated areas. A slow drip from both the hot and cold handles is enough to keep water moving and reduce freeze risk.
How much does it cost to fix a burst pipe in Colorado?
Repair costs for a burst pipe range from $400 to $1,500 for the plumbing repair itself, but water damage remediation can push total costs to $5,000 or much higher. Catching a freeze before the pipe bursts, or preventing it entirely, is always the cheaper outcome. Prevention costs a fraction of what a burst pipe costs to repair.
Can I use heat tape on all types of pipes?
Most electric heat tapes are safe for copper, PVC, and PEX pipes, but you need to match the tape to the pipe material. Always check the manufacturer’s label before buying. Some heat tapes are not rated for plastic pipes and can cause overheating. A licensed plumber can recommend the right product and install it safely.
What should I do if I think a pipe is already frozen?
If you turn on a faucet and nothing comes out, a pipe may already be frozen. Do not use an open flame to thaw it. Use a hair dryer or heating pad on the pipe, starting from the faucet end and working back toward the cold source. If you cannot locate the frozen section or the pipe has already split, call a plumber immediately before turning the water back on.
Do I need to winterize my cabin if I leave it for just two weeks?
In Fairplay and Alma, two weeks is more than enough time for a major freeze event to damage unprotected plumbing. If your heating system fails for any reason while you are gone, pipes can freeze within hours. Either maintain heat above 55°F with remote monitoring, or have the system professionally winterized before you leave.
Wrap Up and Next Steps
Preventing frozen pipes in Colorado comes down to three priorities: insulate exposed pipes before winter, keep your heat above 55°F at all times, and take extra steps during severe cold snaps like dripping faucets and opening cabinet doors. Vacation cabin owners in Fairplay and Alma should treat winterization as a non-negotiable step each fall.
If you are not sure which pipes in your home are most at risk, or if you need a professional winterization for a seasonal property, Curiazza Plumbing is here to help. Call us at (732) 284-1394 to schedule an inspection or winterization service before the next cold front moves in.