Colorado winters are brutal on pipes. A burst pipe can flood your home, damage insulation and drywall, and cost thousands to repair. The good news: most frozen pipe problems are completely preventable.
We service frozen pipes across Brighton, Thornton, Commerce City, Westminster, and the entire Denver metro area every winter. Here's what you need to know to protect your home and what to do if pipes do freeze.
Why Colorado Homes Are Especially Vulnerable
Altitude and pressure drops: At 5,000+ feet above sea level, Colorado's atmospheric pressure is about 16% lower than at sea level. This means water boils faster and loses pressure more quickly, making your plumbing system work harder to maintain flow and pressure.
Dry cold air: Colorado's relative humidity often drops to 20% or below in winter. This dry air pulls moisture from exposed pipe surfaces, causing faster heat loss. The insulating effect of humid air in other regions doesn't protect Colorado pipes.
Rapid temperature swings: Brighton and Thornton can experience 30–40°F temperature swings in a single day — sunny mornings at 45°F followed by sub-zero nights. These rapid shifts create thermal stress on pipes, expanding and contracting the material and opening micro-gaps where cold air penetrates.
Historic freeze events: Colorado's record cold snaps have reached -30°F. Unprotected pipes in attics, crawl spaces, or exterior walls have no chance of survival in such conditions.
Which Pipes Are Most at Risk?
Frozen pipes are not random. Certain areas of your home are far more vulnerable:
- Exterior walls with minimal insulation — water lines on north-facing walls are especially at risk
- Crawl spaces — often poorly insulated and ventilated, trapping freezing air
- Attics and roof lines — cold air penetrates easily, and pipes near exterior walls are exposed
- Garage and shed plumbing — these spaces are often unheated or heated inconsistently
- Basement rim joist areas — the transition between heated and unheated space is a freezing zone
- Kitchen or bathroom exterior corners — pipes bundled tightly with minimal air circulation
- Outdoor hose bibs and supply lines — always at risk unless properly drained and shut off
If you've had frozen pipes before, they'll freeze again in the same location unless you address the underlying insulation problem.
Prevention: The Best Solution
Insulation and Insulating Tape
The single most effective prevention step is proper insulation. Wrap exposed pipes with foam pipe insulation sleeves (available at any hardware store). These cost $1–$3 per foot and can prevent thousands in damage.
Where to insulate: Crawl spaces, attics, basements, garages, and any pipes running along exterior walls. Don't skip pipes you think are "just in the building" — if they're on an exterior wall, insulate them.
Heat Tape
Heat tape is an electric heating cable that wraps around pipes. When temperatures drop, you plug it in and it keeps the pipe above freezing. Install it on vulnerable pipes before winter.
Cost: $20–$50 per 6-foot section. Budget $150–$300 to protect 3–4 at-risk locations in your home.
Cabinet Doors and Access Panels
In kitchens and bathrooms, leave cabinet doors open during freezing weather. This allows warm air from the room to circulate around pipes under sinks. Yes, you lose some heating efficiency, but it's cheap insurance against a burst.
Dripping Faucets
When temperatures drop below 20°F, let faucets drip slightly (even a pencil-thin stream) on the coldest night. Moving water freezes more slowly than still water. Focus on faucets fed by at-risk pipes.
Important: Only do this for 1–2 nights during a hard freeze, not constantly. Wasting water defeats the purpose.
Thermostat and Heating Settings
Never let your home drop below 55°F, even if you're away. If you're leaving for an extended trip in winter, have a neighbor check the home or leave the heat running. The cost of heating an empty house for a week is far less than the cost of water damage.
In crawl spaces, install a basic thermostat-controlled space heater if the area is unheated. This is especially important in Brighton and Thornton where crawl spaces are common.
Drain Exterior Lines Before Winter
Shut off the main water supply to all exterior hose bibs, then open them to let water drain out. Cap the outdoor side with a frost-proof cover. Do this before your first hard freeze in October or November.
What to Do If Pipes Freeze
Step 1: Locate the Frozen Section
Turn on all the faucets in your home. The ones with no flow indicate frozen pipes upstream. Feel along the pipe (if it's exposed) — the frozen section will be noticeably colder than the rest.
Step 2: Apply Heat (Carefully)
Safe methods:
- Wrap the frozen section with towels and pour hot (not boiling) water over it repeatedly
- Use a heat gun or hair dryer on medium heat, moving it back and forth
- Apply heat tape and plug it in
- Place space heaters near the affected area
Never use: Open flames, blowtorches, or propane heaters. The risk of fire or explosion is too high, and the extreme heat can damage pipes or cause scalding water.
Step 3: Increase Airflow
If the frozen pipe is in a crawl space or attic, open doors and vents to allow warmer air to circulate. Use fans to direct warm air toward the frozen section.
Step 4: Keep Faucets Open
As the pipe thaws, keep the faucet open. Water flow helps accelerate thawing and prevents pressure buildup that could burst a weakened section.
Step 5: Know When to Call a Professional
Call Glaze Plumbing immediately if:
- The frozen pipe is in a wall or inaccessible location
- You've applied heat for 30+ minutes with no results
- You see signs of a burst (water leak, wet spots)
- You're uncomfortable attempting thawing yourself
- Multiple pipes are frozen
We have specialized equipment to thaw stubborn frozen pipes safely. Cost: $150–$400. It's a small price for avoiding a burst.
What to Do If a Pipe Bursts
Immediate Actions
1. Shut off the main water supply. This is the single most important step. If you don't know where your main shut-off is, find it now before winter arrives. It's typically in the basement, crawl space, or outside near your water meter.
2. Open all faucets. This releases pressure from the system and helps water drain from the burst section.
3. Document the damage. Take photos and video of the wet areas, damaged insulation, drywall, and any visible water pooling. This documentation helps with insurance claims.
4. Turn off heat if gas is involved. If you smell gas or see a gas line near the burst, turn off the gas at the meter and evacuate. Call 911 immediately.
Next Steps
5. Call a plumber immediately. A burst requires professional repair. We can locate the burst, cut out the damaged section, and install new pipe. A typical burst repair costs $500–$2,000, depending on the pipe's location and accessibility.
6. Contact your homeowner's insurance. Most policies cover sudden bursts and water damage (though some exclusions apply). File a claim right away. Insurance can cover repair costs and water mitigation.
7. Mitigate water damage. If water has spread into walls, ceilings, or insulation, you may need a water restoration company. The longer water sits, the greater the risk of mold and structural damage. Address this within 24 hours.
Frequently Asked Questions
At what temperature do pipes freeze in Colorado?
Pipes typically freeze when exposed to temperatures at or below 32°F for several hours. However, Colorado's dry air and low humidity mean exposed pipes can freeze more readily. In uninsulated spaces like crawl spaces, attics, or exterior walls, pipes may freeze at temperatures above 32°F if wind or drafts are present. For maximum safety, treat any outdoor temperature below 20°F as a freezing risk.
How much does frozen pipe repair cost in Denver?
A professional pipe thawing service in the Denver metro area typically costs $150–$400. If the pipe has already burst, repair costs escalate: $500–$2,000 to cut out and replace the damaged section, plus potential water damage restoration. A burst in a wall or ceiling can cost $1,500–$5,000 or more when water damage is involved. Prevention is far cheaper.
Does homeowner's insurance cover burst pipes?
Most homeowner's insurance policies cover sudden burst pipes and resulting water damage — but only if you've maintained the home properly. If your burst is caused by lack of insulation, failure to drain pipes before winter, or neglect, your claim may be denied. The key is proving you took reasonable precautions. Contact your insurance agent before winter to understand your coverage limits.
How do you thaw frozen pipes safely?
Never use an open flame. Safe methods include: applying heat tape and turning it on, wrapping the pipe with towels and pouring hot water over it, or using a heat gun or hair dryer. For inaccessible pipes, you may need to call a plumber with specialized equipment. Let pipes thaw slowly to prevent pressure spikes. Open faucets to allow water to flow once thawing begins.
Act Now, Before Winter
The time to prevent frozen pipes is now — during fall and early winter before temperatures plummet. Spending $300–$500 on insulation and heat tape today prevents a $2,000–$5,000 burst pipe emergency tomorrow.
If you're not sure which pipes are at risk, we offer free inspections. We'll identify vulnerable areas, recommend the best prevention strategy for your home, and handle the installation if you'd like professional help.
Call (720) 605-0683 or request a free estimate to schedule a frozen pipe prevention inspection or emergency thawing service.