Burst or frozen pipe
A ceiling that is dripping, a line cracked by the cold or water you cannot shut off. Read about burst pipe repair.
Thornton, CO · round-the-clock phone
Emergency Plumber in Thornton, CO
Water spraying from a wall, a toilet that will not stop rising, or a shower that has gone cold. Phone the number below, describe what you see to the dispatcher, and a plumber from the Thornton area is arranged for you. Same-day visits are often possible.
There are no forms to fill out. A phone call at 2 a.m. is handled the same way as one at noon.
24/7
Pick up the phone for
- Running water that will not stopA split pipe, a burst hose or water inside a wall cavity.
- Sewage risingTubs, toilets or floor drains that fill while you run water somewhere else.
- Hot water goneA dead heater or a tank weeping onto the floor.
- Ice in the pipesA cold night that left a tap dry or a wall damp.
24/7 emergency line
Local independent contractors
Get the quote before the work
Thornton plus five nearby towns
Start here
What needs attention?
No two plumbing problems look alike. Pick the line below that sounds closest, and the page explains the work, the price factors and what you can do while you wait.
Not sure? Call (720) 784-0305 →When to call right away
Four situations that should not wait in Thornton
A slow drip can usually hold until morning. The following keep causing damage every minute, so they deserve a call right now.
Sewer backup
When tubs, sinks and toilets all slow down at once, the main is the likely culprit. The next step might be sewer line repair or a camera look.
Heater leaking or dead
A tank dripping in a closet or basement needs its supply closed quickly. Details are on the water heater repair page.
A leak you cannot locate
A bill that climbed or a meter dial that creeps while the house is idle calls for leak detection.
Emergency coverage
Emergency plumber for ZIP codes around Thornton
Many people look for help by postal code. Calls come in from 80241, 80229, 80233, 80260, 80221 and 80602. Mail ZIPs ignore city limits, so several of them spill into Northglenn, Westminster, Federal Heights and Brighton.
Treat the list as a rough guide, not a promise. Whether a crew can reach you turns on the street address and the contractor's route, so say the full address on the call. Neighboring towns are on the service areas page.
Our services
The work behind a well-running home.
From urgent repairs to planned upgrades, these are the plumbing jobs Thornton homeowners call about most.
Leaks and water lines
Stop the water, then find where it went.
A hidden leak shows up as a high bill, a damp spot or a meter that turns with everything off. Start with leak detection, and move to burst pipe repair when a line has split. Pipe that runs under a floor falls under slab leak repair.
Talk about a leak →
Drains and sewer
Clear the way for things to flow.
Most clogs clear fast, and the ones that keep coming back usually have a cause in the pipe. Drain cleaning handles the clog, a camera inspection finds the reason, and sewer line repair fixes what the camera shows.
Talk about a drain →
Hot water
Get your hot water back on track.
A tank that leaks or a shower that runs cold calls for water heater repair or a replacement. If you want endless hot water, read about tankless service, including the altitude settings a gas unit needs at 5,200 feet.
Talk about hot water →
Fixtures and home upgrades
Make thoughtful improvements at home.
Add a bidet, get a hot tub leak fixed, or ask about gas lines and backflow testing. When water has already reached floors or walls, water damage restoration handles the drying.
Ask about an upgrade →Looking for something specific? See the full services list for all 26 services.
Before the plumber arrives
While you wait for help
A few quick actions limit the damage, and none of them needs tools.
Plumbing in Thornton homes
What the water, the age of the houses and the weather mean for your plumbing
Problems here tend to follow a few repeating patterns. Recognizing them helps separate a simple fix from a larger repair.
Hard water is part of daily life
Thornton's 2025 water quality report lists hardness between 152 and 356 milligrams per liter, with an average near 230, or about 13.5 grains per gallon. According to the report also says the city's plants do not remove hardness.
That scale builds on heating elements and inside tanks, and it clogs aerators and showerheads. Flushing the tank yearly helps, and a water softener goes after the cause. If a tank is already crusted, a repair visit tells you whether it is worth saving.
Houses that began going up in the 1950s
Thornton was farmland until 1953, when the first lots were laid out. By the end of 1955 the town had over 1,200 homes, so the oldest houses are now about seventy years old. Later decades added more, which means pipe ages across the city range widely.
Older streets can have steel or early copper supply lines and clay or fiber sewer laterals. If you are unsure, ask for a camera inspection before you pay for a big repair.
The city system and where your part begins
The city maintains about 511 miles of sewer collection lines, and Thornton's wastewater is treated at Metro Water Recovery. The city says wipes, paper towels and similar items, even ones labeled flushable, clog pipes and add cost.
The service line for water goes from the meter to the house, typically about four feet underground. Call Colorado 811 before any digging, and ask the city where its part ends and yours begins if you are unsure.
Spring flushing and cold snaps
The city flushes hydrants each spring for roughly five weeks, which can leave tap water cloudy or rust-colored for a few hours. Run a cold tap until it clears before using hot water, since sediment can enter the heater.
Winter brings hard freezes. Pipes in exterior walls, garages and crawl spaces are the first to go, so insulate them and keep a cabinet door open on very cold nights. See burst pipe repair for the steps to take when one splits.
How it works
What happens after you dial
Four short steps, and the decision to proceed is always yours.
01
Describe the problem
Say what is wrong and in which room, and mention any valve or breaker you have already switched off.
02
Give the details
A few short questions cover the address, the fixture involved and how much water is loose, so the call goes to a suitable contractor.
03
Talk to the contractor
The call is transferred to a nearby company. Ask when someone can arrive, whether that can be today, and what the visit covers.
04
Say yes or no
Ask for the price before any work starts. The contractor sets it and does the job, and you choose whether to go ahead.
Cost and insurance
Why plumbing quotes differ so much
A fair figure is impossible until someone knows what is wrong. Five factors explain most of the gap between one job and another.
Many homeowner policies pay for sudden water damage but often not for replacing a worn-out pipe. Read yours, and speak with your insurer before agreeing to a big job.
For a number that fits your house, phone in, explain the problem and find out exactly what the quote covers.
Where we cover
Serving Thornton and its neighbors
Callers reach the line from all over the city and from the surrounding towns listed here. The dispatcher confirms your address on the call.
Separate pages describe Westminster, Northglenn, Brighton, Commerce City, and Broomfield, each with notes on the housing stock and the plumbing quirks of that town.
Within Thornton, the oldest streets sit closest to the original 1950s lots, while newer neighborhoods farther north and east more often have PEX supply and PVC drains.
Do not see your street or town? Phone anyway, and the dispatcher will say if a contractor works there.
Quick answers
Questions before you call
Brief answers on price, timing, cold weather and licensing.
Yes. Someone picks up every hour of the year, holidays too. The dispatcher records your address and what is wrong, then passes you to a nearby contractor. Same-day arrival is often possible but depends on that company's schedule, so ask for a time.
The figure depends on the fault, the parts, how awkward the pipe is to get at and the hour the call comes in. Ask for a price in plain terms before work starts and what labor and parts it covers.
Close the main valve if it is within safe reach. Stay away from electricity near wet areas, open the lowest tap to relieve the lines, and then phone for help.
Walk everyone out of the house, stay clear of flames and light switches, and use a phone outdoors to reach 911 or the gas utility. Call a plumber once the gas has been dealt with.
Count it as urgent. When several fixtures back up together it almost always means the main sewer pipe is blocked. Stop all water use, phone for help and ask about a camera inspection.
Plumbers in Colorado are licensed through the State Plumbing Board, part of the Division of Professions and Occupations at the Department of Regulatory Agencies. DORA publishes an online lookup for licenses. Request the license number in writing from the contractor and verify it before the crew starting.
Pages for Westminster, Northglenn, Brighton, Commerce City and Broomfield sit under Service Areas. Whether a crew can reach you depends on the contractor and your address, so give the full address when you call.
Water or sewage out of control?
Shut the main valve if that is safe, then phone the dispatcher. A few quick questions come first, and next you hear who is coming.