How Much Does a Plumber Cost in Denver, CO?

The short version: Denver price ranges by job size

Two cost guides that collect quotes from Denver plumbers line up reasonably well. This Old House, using local quotes last updated in February 2024, says most plumbing jobs in the city average between $113 and $376. Angi's 2026 Denver page puts the typical bill at $203 to $544, averaging about $374. The gap mostly reflects timing and what each site counts as a "job," so treat both as a rough starting point rather than a quote.

Angi groups Denver work into three tiers: small repairs such as a dripping faucet or a slow drain at roughly $120 to $300, mid-range work such as a water heater install or a sewer repair at $300 to $2,000, and large projects such as whole-house repiping or a sewer replacement that can pass $4,000.

How do Denver plumbers build a price?

Most bills are some mix of three things.

• A diagnostic or service fee. Angi reports Denver plumbers charge $100 to $250 to come out and diagnose, and that fee normally covers travel and the first hour.
• Labor. Hourly rates in the metro run about $45 to $200, per Angi. Many shops quote common jobs at a flat price instead, which is easier to compare.
• Parts and materials. A wax ring is a few dollars; a gas control valve or a new tank is much more. Ask whether parts are marked up and whether the shop warranties them.

When you collect quotes, make sure each one covers the same scope. One plumber may include hauling away an old heater and pulling the permit, while another lists those separately.

What pushes a Denver job above the typical range?

House age and pipe materials

About 55.5% of Denver homes were built before 1980, and the median home dates to 1975. Older houses are more likely to have galvanized supply pipe, cast iron drains and clay sewer laterals, all of which can turn a simple repair into a bigger one once the wall or floor is open. If a drain keeps backing up, a camera inspection of the sewer line often costs less than guessing.

Freeze damage

Denver's winters bring cold snaps where daytime highs can stay below freezing and nights drop well below zero. A split pipe in an outside wall or crawlspace is why the burst pipe line in the table is so high: the repair includes finding the break, replacing pipe and often drying out drywall. The frozen pipe prevention checklist costs nothing to follow and can prevent the most expensive call of the year.

Your side of the service line

Denver Water says property owners own the water service line from the main in the street into the house. A leak or break anywhere along that run is a private repair. One exception worth knowing: Denver Water replaces lead service lines with copper at no direct cost to the customer under its Lead Reduction Program, so check whether your home is enrolled before paying for work on the water line yourself.

Access

Finished basements, tight utility closets and pipes under slabs all add labor. A plumber who has to cut and patch drywall, or tunnel under a slab, will price that in.

How much more is an after-hours call?

Expect a premium for nights, weekends and holidays. Angi's Denver plumber page puts emergency work at roughly one and a half to two times the normal price. Its separate Denver emergency page lists hourly rates of about $95 to $315 for evenings, $125 to $425 for weekends and up to $635 on holidays, and notes some plumbers charge triple time on holidays.

That premium is worth paying for active water you cannot stop, sewage coming up a floor drain, or no heat source for a frozen line. A dripping faucet or a single slow sink can usually wait for regular hours. If you are unsure, read the guide on whether to call now or wait until morning, then decide. When it truly cannot wait, an urgent plumbing call in Denver starts with shutting off the main valve so the meter stops spinning while you wait.

Do permits add much to the bill?

Usually not much, but they do matter. In Denver, Community Planning and Development treats water heaters, water service lines, water softeners, backflow preventers and fixture work in single-family homes and duplexes as quick permits that can be applied for online. Angi lists Denver permit fees at $20 for projects valued at $1 to $500 and $35 for projects from $501 to $2,000, with larger jobs on a sliding scale.

Suburbs run their own building departments. Thornton, for example, requires a permit to install or replace a water heater and for gas line work, but not for swapping a plumbing fixture. Ask who pulls the permit and whether the fee is in the quote. A permitted job also gets an inspection, which protects you if you sell the house later.

Do prices change outside the city?

Not reliably. A plumber based in Aurora or Lakewood may have a shorter drive to your house than one downtown, which can trim a trip charge, but labor rates across the metro are similar. Rural and foothill addresses can cost more simply because of distance. If you live in Aurora or out toward Brighton, ask whether the service fee changes by zone.

Bigger projects: rough Denver numbers

For a hot water decision specifically, the repair-or-replace breakdown walks through part prices and the age question. Sewer work varies too much to summarize in a single number, because length, depth and whether the line can be lined instead of dug all change the price. Get a camera video first, then quotes for replacing the sewer lateral from more than one plumber.

How do you keep the bill fair?

1. Describe the problem precisely on the phone. Which fixture, when it started, whether water is still running. Good details mean the right parts on the first trip.
2. Ask what the service fee covers and whether it is credited toward the repair.
3. Get the price before work starts, in writing if the job is more than a quick fix.
4. Compare like with like. Same scope, same materials, permit and haul-away either included or not in every quote.
5. Know your shutoffs. Finding the main valve yourself during a leak can save a lot of water damage, and with it a lot of money.

If you are not sure which kind of plumber you need, the full list of plumbing services explains each one.

What if you smell gas?

Do not wait for a quote. Leave the house first, then call 911 and your gas utility from a safe place. In most of metro Denver that is Xcel Energy at 1-800-895-2999. Some outer towns are served by other gas utilities, and some mountain homes use propane, so check the company name on your gas bill. Once the utility has made the area safe, a plumber can repair the line.