The short answer
A licensed plumber in Denver charges $47 to $160 an hour, plus a $53 to $160 service call. Small jobs like a clogged drain or a new faucet run $105 to $315. Denver prices sit about 5% above the US average. Freeze risk drives the worst bills here.
What plumbers cost in Denver
These ranges cover labor and standard parts for a typical single-family home. They come from national cost data adjusted by the Denver cost factor of 1.05 from the U.S. Army Corps of Engineers Area Cost Factors, checked against local price guides.
| Job | Denver (typical range) | US average |
|---|---|---|
| Hourly rate (licensed plumber) | $47–$160/hr | $45–$150/hr |
| Service call / trip fee | $53–$160 | $50–$150 |
| Clear a clogged drain | $105–$290 | $100–$275 |
| Install a faucet | $125–$315 | $120–$300 |
| Install a toilet | $370–$840 | $350–$800 |
| Find and fix a leak | $160–$685 | $150–$650 |
| Burst pipe repair | $525–$5,250 | $500–$5,000 |
| Sewer line repair | $525–$4,000 | $500–$3,800 |
| Gas line repair or install | $370–$2,100 | $350–$2,000 |
| Water heater, 50-gal tank, installed | $735–$3,250 | $700–$3,100 |
| Tankless water heater (gas), installed | $2,200–$5,900 | $2,100–$5,600 |
| Whole-house repipe | $4,200–$16,800 | $4,000–$16,000 |
Estimates for 2026, including labor and standard parts. Denver prices use the metro's construction cost factor of 1.05 (US average = 1.00) from the U.S. Army Corps of Engineers Area Cost Factors. Your quote depends on access, materials and the condition of the home.
Quotes climb toward the top of the range when the pipes are hard to reach, such as under a basement slab, inside a finished ceiling, or in a crawl space. Timing matters too. A call at 2 a.m. after a pipe bursts costs more than the same repair on a Tuesday morning, and a burst pipe repair alone runs $525 to $5,250 depending on how much water damage it caused before the water was shut off.
For a number based on your own job, use the cost estimator below. It asks a few questions and applies the rate for your ZIP code.
Why plumbing breaks the way it does in Denver
Denver plumbing problems come down to the age of the house, the water and the winter.
Hard water and scale
Denver's water comes from Rocky Mountain snowmelt and high-altitude reservoirs. It carries dissolved calcium and magnesium from the mountain geology. One local plumbing company puts Denver's hardness at 180 to 220 ppm (Roto-Rooter). That scale collects inside water heaters, faucet cartridges and shower valves. It shortens the life of a tank water heater and slowly cuts water pressure at fixtures. Flushing a tank water heater once a year and replacing the anode rod when it wears out are the two cheapest habits that add years to the tank.
Denver Water collects more than 55,000 samples and runs nearly 200,000 water quality tests each year. The water meets or exceeds federal and state requirements (Denver Water). Hard water is a maintenance issue, not a safety one.
Lead service lines in older neighborhoods
Denver Water runs a 15-year Lead Reduction Program to find and replace an estimated 60,000 to 64,000 lead service lines in its service area (Denver Water). Homes built before 1986, especially in established areas like Capitol Hill and Park Hill, may still have older service lines or plumbing that can introduce lead (Roto-Rooter). If your water has sat for hours, run the cold tap for 30 seconds to several minutes before drinking or cooking. Boiling does not remove lead.
Freeze risk and winter pipe bursts
Denver's cold snaps drive most emergency plumbing calls here. Pipes in exterior walls, unheated garages, crawl spaces and hose bibs freeze when temperatures drop hard overnight. They usually burst when they thaw. A burst pipe repair runs $525 to $5,250. The water damage often costs more than the repair. Before the first hard freeze, shut off and drain outdoor hose bibs, insulate pipes in unheated spaces, and know where your main shutoff valve is.
Sewer laterals and older drain lines
The homeowner owns the sewer lateral from the house to the main in the street. Denver's older neighborhoods have clay and cast iron laterals that crack, take in roots and sag over decades. A camera inspection costs far less than digging and shows whether a line can be cleaned, lined or replaced. Sewer line repair runs $525 to $4,000.
Do you need a permit?
For most plumbing work in Denver, yes. Colorado does not inspect plumbing in local jurisdictions that run their own programs, and Denver County has its own plumbing inspection program, so permits there go through the City and County of Denver rather than the state (Colorado DPO). If you hire a plumbing contractor, the contractor is responsible for pulling the permit. As the homeowner, you should not continue the permit application.
State law makes it a violation for anyone other than the homeowner who is not a registered plumbing contractor to install plumbing work on your property. Your homeowner's insurance may not cover damage caused by an uninsured worker.
Water heaters are the common case. In Colorado, water heater installations and replacements require a licensed plumbing contractor, permits and inspections (City of Arvada). That applies to a same-size swap in the same spot.
Each city around Denver runs its own building department, and the rules differ:
| City | Permit authority | What to know |
|---|---|---|
| Denver | City and County of Denver | Own plumbing inspection program; contractor pulls the permit |
| Aurora | City of Aurora | Own building department and contractor registration |
| Lakewood | City of Lakewood | eTRAKiT online permits; plumbing contractors must show state contractor's and master's licenses |
| Littleton | City of Littleton | eTRAKiT permits; contractor licensing through ICC exams |
| Douglas County (Highlands Ranch and unincorporated areas) | Douglas County Building Division | State plumbing licenses verified through DORA before a permit issues; registration fees currently waived |
| Arvada | City of Arvada | Plumbing license requires a state master plumber and state contractor license |
| Boulder | City of Boulder | Own plumbing contractor license; no reciprocity with other jurisdictions |
A few local details matter. In Lakewood, plumbing contractors must provide State of Colorado contractor's and master's licenses, and mechanical contractors may not install water heaters (Lakewood). In Arvada, a plumbing contractor must be or employ full-time a master plumber licensed by the state, and a fuel-burning tankless water heater that is not a like-for-like replacement needs a gas line sizing calculation and plan review (Arvada). In Boulder, permits will not be issued for work by an unlicensed person except a homeowner working on their own home, and contractors must carry general liability insurance of at least $1,000,000 per occurrence and $2,000,000 aggregate (Boulder).
Skipping the permit tends to cost more later. It usually comes up when you sell and the buyer's inspector notices a new water heater with no permit on file.
How to check a plumber before you hire
Colorado licenses plumbers through the Division of Professions and Occupations within the Department of Regulatory Agencies. There are three license levels, each with its own experience requirement:
- Residential Plumber: 2 years, or 3,400 hours, of practical experience.
- Journeyworker Plumber: up to 4 years, or 6,800 hours.
- Master Plumber: five full-time years, or 8,500 hours (Colorado DPO).
Anyone working in the trade who is not yet licensed must be registered as an apprentice. Licensed plumbers must complete at least 8 hours of continuing education each year of the two-year license period.
Checking takes a few minutes:
- Ask for the license number and look it up on the state's license lookup. The name should match the business and the status should say active.
- Check the city where the work happens. Lakewood, Arvada, Boulder and Douglas County each require their own contractor registration or license on top of the state license.
- Confirm liability insurance and workers' compensation. Douglas County requires proof of both before it registers a contractor.
- Get the price in writing before work starts, with the permit included as a line item.
- If something goes wrong, you can file a complaint with the state.
Every plumber in the GOLDGCP network goes through a license check, insurance verification, a business and public-records check and reference calls before getting a job. You pay in milestones as the work gets done.
Common plumbing jobs and how long they take
| Job | Typical time on site | What to expect |
|---|---|---|
| Clogged drain | 1 to 2 hours | Snaking or hydro-jetting; a camera check if it keeps coming back |
| Faucet or toilet install | 1 to 3 hours | Same-day in most cases |
| Leak detection and repair | 2 to 6 hours | Longer if the leak is under a slab |
| Water heater replacement | 3 to 6 hours | Permit, haul-away of the old tank |
| Tank to tankless conversion | 1 to 2 days | New venting, often a larger gas line, plus an electrical outlet |
| Sewer line repair | 1 to 3 days | Camera inspection first; trenchless lining when the pipe allows |
| Whole-house repipe | 2 to 5 days | Walls opened in small sections, then patched; water off during the day |
Water heaters in Denver
A 50-gallon gas tank installed runs $735 to $3,250 here. Tankless gas units cost $2,200 to $5,900 installed, because they often need a larger gas line and new venting, and Arvada requires a gas line sizing calculation and plan review for a non-like-for-like swap. The right choice depends on your gas line size, where the heater sits and how much hot water the household uses.
Denver Water offers up to a $100 rebate on a WaterSense-labeled toilet (Denver Water). If you are replacing a toilet anyway, that rebate covers a good share of the fixture.
Sewer lines: yours or the city's?
The homeowner owns and repairs the whole sewer lateral, from the house to the main in the street. The city and the sanitation districts maintain only the main line. Tree roots are a common cause of lateral damage in older neighborhoods, so a camera inspection before buying an older home is worth the cost.
Areas we cover
GOLDGCP plumbers work across the Denver metro, including:
- Denver and its neighborhoods
- Aurora
- Lakewood
- Littleton
- Highlands Ranch and unincorporated Douglas County
- Arvada
- Boulder
If your city isn't listed, call and we'll tell you whether a plumber in our network covers it.
How GOLDGCP works
- Tell us what's wrong, through the form, a call or WhatsApp.
- We match you with a vetted, licensed plumber near you and send a written estimate.
- The plumber pulls any permit needed and does the work.
- You pay in milestones, and the final payment goes out after the job passes inspection.
For emergencies, call the number at the top of the page any time, day or night. If water is coming through a ceiling right now, shut off the main valve first.
Frequently asked questions
How much does a plumber charge per hour in Denver?
Usually $47 to $160 an hour during business hours, plus a service call of $53 to $160 that often includes the first hour. Master plumbers and after-hours calls cost more. A burst pipe repair runs $525 to $5,250 depending on the damage.
Do I need a permit to replace a water heater in Denver?
Yes. Colorado requires a licensed plumbing contractor, a permit and an inspection for water heater installations and replacements, even a same-size swap. Your plumber should pull it and arrange the inspection, which checks the venting, gas connection and relief valve.
Is my sewer line the city's responsibility in Denver?
No. The homeowner owns and repairs the entire sewer lateral, from the house to the main in the street. The city and the sanitation districts maintain only the main line. A camera inspection before buying an older home is worth the cost.
Why does my water heater fail so fast in Denver?
Denver's water is hard, often 180 to 220 ppm. That scale collects inside the tank and shortens its life. Flushing the tank once a year and replacing the anode rod when it wears out are the two cheapest habits that add years. A water softener also helps.
How do I check a plumber's license in Colorado?
Ask for the license number and look it up on the state DORA license lookup. The name should match the business and the status should say active. Then check the city where the work happens, since Lakewood, Arvada, Boulder and Douglas County each require their own registration.
Can a handyman do plumbing work in Denver?
Only small jobs. State law makes it a violation for anyone other than the homeowner who is not a registered plumbing contractor to install plumbing work on your property. Water heaters, gas lines and pipe replacement all need permits, so those jobs require a licensed plumber.
What should I do if a pipe bursts in winter?
Shut off the main water valve first, usually where the water line enters the house or at the meter. Then call a plumber. Denver's cold snaps freeze pipes in exterior walls, garages and crawl spaces. They usually burst when they thaw. Insulating those pipes before winter prevents most of it.
How we calculate these prices
GOLDGCP starts from national price ranges for each job, taken from published 2026 cost guides and checked against local price guides where they exist. To get a local price, we multiply the national range by the construction cost factor for the metro from the U.S. Army Corps of Engineers Area Cost Factors (US average = 1.00). Where that table has no entry for a metro, we use the nearest listed location or the state value. For ZIP codes outside the 50 largest metros, the cost estimator uses the state's price level from the Bureau of Economic Analysis Regional Price Parities. Ranges include labor and standard materials but not unusual site conditions, so a written quote after an inspection is always the final price.
Sources
- rotorooter.com
- denverwater.org · denverwater.org
- dpo.colorado.gov · dpo.colorado.gov
- City of Arvada
- City of Lakewood
- City of Boulder
- dpo.colorado.gov · dpo.colorado.gov
- apps.colorado.gov
- apps2.colorado.gov
- denverwater.org · denverwater.org
- HomeGuide · HomeGuide
- HomeGuide · HomeGuide
- U.S. Army Corps of Engineers
- U.S. Bureau of Economic Analysis
About this guide
Written by the GOLDGCP editorial team. Prices come from national cost guides adjusted with official construction cost factors for Denver; rules and statistics come from the agencies and reports linked in the text. We update this page when prices or codes change.