Burst pipe repair in Cypress, TX and the freeze prep that keeps it from happening again
Cypress only sees a handful of freezing nights a year, which is exactly why our pipes are not ready for them. We repair split and frozen lines in attics, exterior walls and hose bibs, find the breaks you cannot see yet, and help you prepare before the next hard freeze warning.
Burst pipe repair in Cypress, TX means stopping the water, finding every split, and replacing the damaged sections with pipe protected from the next freeze. Most Cypress bursts happen in attic lines, exterior walls and hose bibs during hard freezes like Uri in 2021 and the January 2026 cold snaps. Close the main, drain the lines, and call a licensed plumber.
Why do pipes freeze in Cypress when it rarely gets cold?
Houston-area homes are built to shed heat, not hold it. Bush Intercontinental averages about 9.6 days a year at or below freezing, so builders here have little reason to bury water lines deep or keep them inside the heated envelope. The result is plumbing that sits in exactly the spots that get coldest when a real freeze arrives.
Attic lines
Many Cypress homes, especially two-story houses from the 1990s on, run supply pipe through the attic to reach upstairs bathrooms and an attic water heater. The insulation is laid on the attic floor, above your ceiling. That keeps the house cool in August, but it also means pipes lying on top of or above that insulation are on the cold side of it. When outside air drops into the teens, the attic follows, and those pipes freeze first.
Exterior walls
Kitchen sinks on an outside wall, laundry hookups on the garage wall, and bathroom lines on the north side of the house all sit in walls with only a few inches of insulation between the pipe and the cold. The American Red Cross points out that pipes against exterior walls, and where water enters the home through the foundation, are more prone to freezing. In a lot of Cypress floor plans, the main line rises out of the slab in the garage, which is unheated.
Hose bibs and the yard line
Outdoor faucets are the most exposed plumbing on the house. A garden hose left connected holds water in the faucet body, and that water freezes and splits the valve or the pipe just inside the wall. The split often does not leak until you turn the faucet on in spring, and then it floods the wall cavity. Backflow preventers on irrigation systems and exposed pipe at the meter box are the other outdoor weak spots.
Garages and attic water heaters
Water heaters in garages and attics sit in unheated space. The tank itself rarely freezes when it is running, but the cold and hot lines connected to it, the expansion tank, and the drain pan line can. During a long power outage, an electric heater stops heating and everything around it cools down.
Put all of that together and the cause and effect is clear: a house designed to keep heat out puts its pipes in cold spaces, and a rare multi-day freeze, especially with a power outage, drops those spaces below freezing long enough for water to turn to ice and split the pipe.
Is my pipe frozen or burst? Signs to look for
A frozen pipe and a burst pipe are not the same thing, but one often leads to the other. Ice expands inside the pipe and pushes pressure toward the closed faucet, and the pipe splits at its weakest point. While the ice is solid it plugs the split, so many bursts do not leak until the thaw.
| What you notice | Most likely | What to do |
|---|---|---|
| A faucet gives only a trickle or nothing in a freeze | Frozen line feeding that faucet | Leave the faucet open and start a safe thaw |
| Frost on an exposed pipe or bulge in the pipe | Frozen, possibly already split | Close the main before thawing that section |
| Hissing or spraying sound in a wall or ceiling | Burst pipe, water running | Close the main now and drain the lines |
| Water stain spreading on a ceiling after the thaw | Burst in the attic or upstairs wall | Close the main, open a low faucet, bucket under the stain |
| Hose bib sprays inside the wall when turned on in spring | Freeze split behind the faucet | Close the main and call for repair |
| Meter spins with every fixture off after a freeze | Hidden burst somewhere on your side | Close the main and call for leak location |
Hot water lines can freeze too. A hot line in the attic with no flow overnight cools to attic temperature like any other pipe.
What to do the moment a pipe bursts
If water is pouring, these steps limit the damage. If you have not found your shutoff yet, call us while you look and we will help on the phone.
Close the main water shutoff
The house-side valve is often in the garage, by a front hose bib, or in a small box near the foundation. If you cannot find or turn it, use the valve in the meter box near the curb. The American Red Cross advice is the same: turn off the water at the main valve and call a plumber.
Drain the lines
Open the lowest faucet in the house, often a first-floor tub or an outside hose bib. That lets water in the pipes drain there instead of out of the break.
Protect the water heater
With the supply off, turn a gas heater to off or pilot, or switch off the breaker to an electric one.
Watch the electrical
If water is near outlets, light fixtures or the panel, stay out of the water. Turn off affected circuits only if you can reach the panel standing on a dry floor.
Relieve a bulging ceiling
Put a bucket under it and poke a small hole so water drains in one spot rather than bringing the drywall down.
Photograph and call
Photograph the break and every wet room, then call us. If it is a regional freeze, call even if the water is off, so you get on the schedule.
If this is part of a bigger night, such as a water heater leaking at the same time or sewage backing up, our emergency plumber page covers each emergency type.
How to thaw a frozen pipe safely
If a faucet is barely running during a freeze and nothing is leaking yet, you may be able to thaw the line before it splits. Close the main first if you can see any damage on the pipe, since a split can open the moment the ice melts.
- Keep the faucet open. Running water helps melt ice in the pipe and shows you when flow returns.
- Use gentle heat. The Red Cross lists a heating pad wrapped around the pipe, a hair dryer, a space heater aimed at the pipe, or towels soaked in hot water.
- Open cabinet doors. The CDC suggests opening cabinets under kitchen and bathroom sinks so house heat reaches the pipes. Move cleaners and anything flammable out first.
- Work from the faucet back. Start heating near the open faucet and move toward the frozen section, so melting water has somewhere to go.
- Keep going until full pressure returns. A trickle means ice is still in the line.
If the frozen section is inside a wall, under insulation in a tight attic, or you cannot find it, stop and call. We locate the frozen section, thaw it safely, and check the line under pressure before we leave, so a hidden split does not show up as a ceiling stain three days later.
Should I drip my faucets in Cypress during a freeze?
The answer depends on who supplies your water, and that confuses a lot of people because Houston news covers both answers. In January 2026, KPRC 2 laid out the split clearly.
City of Houston customers
Houston Public Works has said it does not advise people to drip faucets. The city’s system relies on re-pump stations rather than water towers, and mass dripping could hurt water pressure. A city spokesperson has warned that lost pressure could lead to a boil water notice and weaker hydrant pressure for firefighters.
MUD and water-tower customers
Harris County guidance for water-tower systems, which includes MUDs, has been to keep faucets trickling overnight. The City of Katy also tells residents to drip faucets fed by freeze-prone pipes, since moving water resists freezing. Kingsbridge MUD‘s freeze notice told residents to run water through indoor faucets.
Most of Cypress gets water and sewer from Municipal Utility Districts, not the City of Houston. Check the name on your water bill. If it is a MUD, a slow trickle from faucets on exterior walls and fed by attic lines is the guidance local officials have given. If your district issues its own instructions during a freeze, follow those, because the district knows its own pressure situation. HC MUD 188 and other districts post freeze notices and link to the National Weather Service Houston/Galveston office at weather.gov/hgx for the latest forecast.
PEX vs copper vs CPVC: how each pipe behaves in a freeze
The pipe in your walls depends mostly on when your home was built. As a general pattern in Cypress, 1970s and early 80s homes have copper or galvanized supply, late 80s to mid 90s homes have copper, CPVC and some polybutylene, late 90s and 2000s homes have copper or CPVC, and homes from the 2010s on mostly have PEX. Each material fails differently when water inside it turns to ice.
| Pipe | Common in | How it handles a freeze | Typical damage |
|---|---|---|---|
| PEX | 2010s and newer homes in Bridgeland, Towne Lake, Miramesa, Dunham Pointe | Flexible. It can expand when water inside freezes and return to its size after the thaw. It also conducts heat far more slowly than copper | Not freeze-proof. Fittings, valves and connections at fixtures can still crack |
| Copper | Many homes from the 1970s through the 2000s | Rigid metal that conducts heat fast, so water in it cools and freezes sooner | Splits along the pipe, often a lengthwise bulge or crack |
| CPVC | Late 80s to 2000s homes in Fairfield, Cypress Mill, Coles Crossing and similar | Rigid plastic that does not stretch the way PEX does | Cracks at the pipe or fittings. Older CPVC can also turn brittle with age and crack when handled |
| Polybutylene | Some late 80s to mid 90s homes | Gray plastic often stamped PB2110, already known for failing at fittings | A freeze adds stress to a system that should be replaced |
| Galvanized steel | Some 1970s homes | Rigid, often corroded inside | Splits and also leaks at rusted threads after a freeze |
Viega, a pipe and fitting maker, notes that PEX has about 68 times less thermal conductivity than copper of similar wall thickness, which helps water inside it resist freezing longer. That helps, but it does not make an attic run safe. During a long freeze, PEX lines in newer Cypress attics still freeze solid, and the brass or plastic fittings and the valves at fixtures are where they tend to fail.
If your home has had more than one freeze break, or you have polybutylene or galvanized pipe, patching each split only buys time. Our repiping page covers replacing the system and rerouting lines out of the coldest spaces.
How we repair burst and frozen pipes
A good burst pipe repair is more than cutting out the split. Freeze damage often comes in clusters, because the same cold attic or wall that split one pipe chilled the pipes next to it.
1. Find every break
We isolate sections and check the system under pressure after the thaw. If the meter still moves with the visible break fixed, there is another leak, and our leak detection tools find it without opening every wall.
2. Open only what we need
We cut the smallest drywall access that lets us repair the pipe properly, and lay drop cloths and wear shoe covers in your home.
3. Replace the damaged run
We cut back to sound pipe and replace the damaged section with matching or compatible material, using the right transition fittings between copper, CPVC and PEX.
4. Fix the exposure
Where we can, we insulate the repaired run, move it under the attic insulation, or reroute it away from an exterior wall so the same spot does not freeze again.
5. Test before we leave
We restore water, check every fixture on the line, and watch for drips at the new joints and at the water heater.
6. Write it up
Your invoice describes the cause, the location of each break and the repair. That is the document your insurer will want.
You get a written price before any work starts. Burst pipe repair costs vary widely with the number of breaks, the pipe material and how hard the break is to reach, so we do not publish a flat price. A single split hose bib and a dozen attic breaks are very different jobs. When a freeze damages a water heater or its connections, see water heater repair. When a freeze break is under the slab, see slab leak repair.
Insurance after a freeze: what Cypress homeowners should know
Winter Storm Uri in February 2021 showed how big freeze claims can get. The Texas Department of Insurance reported that, as of June 30, 2022, insurers had 511,473 claims from the storm, about 85% of them on residential property policies, with about $11.5 billion in insured Texas losses expected and $8.8 billion already paid. The Insurance Council of Texas expected it to be the largest claims event in state history.
Whether a claim is paid depends on your policy, so read it and talk to your agent. Many homeowner policies treat sudden water damage differently from the cost to repair the failed pipe itself, and terms for vacant homes vary, so ask your agent before you travel or leave a rental empty. Keeping the heat on and shutting off and draining a vacant property protects you either way.
- Report the damage to your insurer promptly and follow their documentation instructions.
- Photograph and video each wet room before cleanup, including the water line on walls.
- Ask us to save the split pipe section. Do not throw away damaged items until your insurer says it is fine.
- Photograph every receipt, since receipt paper fades.
- Log each call with your insurer: date, name, phone number and instructions.
- Run fans and remove wet materials to limit further damage, and keep receipts for that work.
The Texas Department of Insurance takes consumer complaints at 800-252-3439 if a claim goes wrong.
Freeze prep checklist for Cypress homes, month by month
The Texas Department of Insurance’s advice is simple: do not wait until a freeze looms. Cypress-area MUDs issued hard freeze warnings on January 21 and January 30, 2026, and Kingsbridge MUD issued one in February 2025. Uri was in February 2021, and the record low at IAH, 7 degrees F, came on December 23, 1989. Our freeze window runs from late fall into early spring, so spread the work out.
| Month | What to do | Why it matters |
|---|---|---|
| October | Find and test the main shutoff and the meter box valve. Label them. Show everyone in the house | You cannot stop a burst you cannot shut off |
| November | Buy foam pipe wraps and hose bib covers. Wrap exposed pipe in the attic first, then garage and exterior lines | TDI recommends inexpensive wraps on exposed pipes, starting in the attic |
| November | Check the irrigation backflow device and know how to shut off and drain the sprinkler system | Backflow devices sit exposed above ground and split easily |
| December | Disconnect, drain and store garden hoses. Cover every hose bib | Harris County freeze guidance calls for disconnecting and storing outdoor hoses |
| December | Check attic insulation over pipes and around an attic water heater’s lines | Gaps over pipe runs are where attic freezes start |
| January | Watch weather.gov/hgx and your MUD alerts. On a freeze warning, open cabinets on exterior walls and set a trickle if your MUD advises it | The January 2026 warnings came days ahead. Use that lead time |
| January | Before travel during cold weather, shut off the main and open faucets to drain the lines. Keep the heat on | Vacant homes flood for days before anyone notices |
| February | Stay ready. Uri hit in mid-February. Keep wraps on and supplies in place | Late freezes catch people who unwrapped early |
| March | After the last freeze, turn on each hose bib and look inside the wall or garage for leaks. Run the meter test | Freeze splits often only leak when first used in spring |
Kingsbridge MUD’s notice put it in four words that are easy to remember: protect people, pets, pipes and plants. For a quick check of whether your house is leaking anywhere after a freeze, use the two minute meter test on our homepage (seasonal checks).
Which Cypress homes freeze most, and what owners should check
Every Cypress subdivision got hit in Uri, but some houses are more exposed than others. These patterns come from house age, layout and pipe material rather than ZIP code alone.
Two-story homes with attic heaters
Coles Crossing, Cypress Creek Lakes, Rock Creek, Longwood Village and the Villages of Cypress Lakes have many two-story homes from the 1990s and 2000s with lines and water heaters in the attic. A freeze break here lands on a ceiling.
Newer PEX homes in 77433
Bridgeland, Towne Lake, Miramesa, Marvida, Bridge Creek, Mason Woods, Yaupon Ranch and Dunham Pointe mostly use PEX. It resists bursting better than copper, but fittings and fixture valves in cold attics still fail, and many owners have not lived through a hard freeze in the house yet.
Older homes in 77429
Parts of Ravensway, Lakewood Forest and the older sections near FM 1960 have copper or galvanized pipe. Galvanized that splits in a freeze is often corroded on either side of the break, so a repair can spread.
Large lots and long runs
Ravensway’s large lots and the 7,500 to 12,000 square foot lots in Coles Crossing mean long yard lines, outdoor kitchens, barns and more hose bibs. Each exposed outdoor fixture is another freeze point.
Buyers: ask the inspector where the supply lines run, especially in the attic, and whether the home had freeze damage in 2021. Patched drywall in a ceiling under an attic run is worth a question. Sellers: if you repaired freeze damage, keep the invoice to show what was fixed and how. Landlords: in the lease, spell out who wraps hose bibs and who sets the thermostat during a freeze, and get the tenant’s agreement to call before a small leak becomes a big one. A vacant rental between tenants should have the water shut off and drained during any freeze warning.
Questions Cypress homeowners ask about burst pipe repair
How much does burst pipe repair cost in Cypress, TX?
It depends on the number of breaks, the pipe material and how hard each one is to reach. A single hose bib split and many attic breaks are very different jobs. We give a written price before any work starts.
Do you offer emergency burst pipe repair near me 24 hours a day?
Yes. We answer live 24/7 across Cypress and Cy-Fair, including during freezes. Close the main and open a low faucet while you call (281) 664-2542.
How cold does it have to get for pipes to freeze in Cypress?
There is no single number, because wind, attic insulation, power outages and how long the cold lasts all matter. Attic and exterior wall pipes are at risk during any hard freeze warning, especially overnight and over multiple days.
Should I drip my faucets in Cypress?
Most Cypress homes are on MUD water systems, and Harris County guidance for water-tower systems has been to trickle faucets overnight. City of Houston customers are told not to drip. Check your water bill and follow your district’s notices.
Can I thaw a frozen pipe with a torch or heat gun?
Do not use a torch or any open flame. The Red Cross recommends a hair dryer, heating pad, space heater aimed at the pipe, or hot towels, with the faucet open. Keep heat sources away from insulation and anything that burns.
Is PEX freeze-proof?
No. PEX can stretch when water inside it freezes and usually returns to size, so it bursts less often than copper. Fittings, valves and fixture connections on PEX systems can still crack in a hard freeze.
Why did my pipe start leaking days after the freeze?
Ice plugs a split while it is frozen. When it thaws, water flows through the crack. Hose bibs often leak only when first turned on in spring. Run the meter test after any freeze.
Will homeowners insurance cover a burst pipe?
Many policies cover sudden water damage, though not always the pipe repair itself. Read your policy, report promptly, photograph everything before cleanup, keep the failed pipe section and save every receipt.
Should I shut off my water when I leave town in winter?
Yes, during freeze season. Close the main, open faucets to drain the lines, and keep the heat on. A burst in an empty house can run for days before anyone sees it.
Should I repipe after freeze damage?
If you have polybutylene or galvanized pipe, or more than one freeze break in exposed attic runs, repiping and rerouting lines out of cold spaces is often the better long-term fix. We explain both options in writing.
Sources and further reading
Facts on this page come from these public sources, checked in October 2026. Links open in a new tab.
Related plumbing services in Cypress
Cypress neighborhood guides for this service: plumbing in Ravensway, plumbing in Rock Creek, plumbing in Dunham Pointe.
If a pipe has burst, close the main and drain the lines, then let a licensed Cypress plumber find every break. Call (281) 664-2542.
Leaking attic heater in Bridgeland, slab leak in Fairfield or a backup in Lakewood Forest?
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