Skip to content

Leaks, pipes & freezing · Denver

Repiping in Denver, CO

Repiping replaces a home's water supply lines, usually because old galvanized steel has corroded or polybutylene is at risk of failing. Most repipes today use PEX, take two to five days, and are done through small wall openings rather than gutting the house.

  • Licensed local plumbers
  • The problem explained before work starts
  • Price agreed before the job begins
New plumbing pipes running through an open wall

Repiping for Denver homes

Many homes built before the 1960s still have galvanized supply pipe, which rusts from the inside until pressure drops and the water turns brown. Some homes built between the late 1970s and mid-1990s have gray polybutylene pipe, which can fail at fittings without warning.

For the full guide, including what you can safely do before a plumber arrives, see repiping explained.

Repiping in Denver at a glance

Urgency
Usually plannable
Area
Denver, CO
Who does the work
An independent, licensed local plumber
Permit
Plumbing permits and inspections are handled by Denver Community Planning and Development. Sewer work in the street also needs a right-of-way permit from the city.
Typical steps
Survey → Quote and permit → Run new lines → Inspect and test
Availability
Call now to check plumber availability

Signs you need repiping in Denver

  • Low pressure throughout the house, especially on hot
  • Rusty or brown water after the water sits overnight
  • Repeated pinhole leaks in copper
  • Gray plastic supply lines marked PB
  • Galvanized pipe visible at the water heater or main

Local conditions

Repiping in Denver: what's different

Denver bungalows and foursquares from the 1900s–1930s often still have some galvanized supply pipe, sometimes spliced to copper during earlier remodels. Galvanized corrodes from the inside, causing low pressure and rusty water, and partial repipes where only some runs were replaced are common.

A whole-house repipe usually runs new PEX or copper through basements and closets with small wall openings, then the plumber patches them. Plumbing permits and inspections come from Denver Community Planning and Development. Homes with a lead service line may also qualify for Denver Water's replacement program for the line from the main.

Water and sewer in Denver
Denver Water supplies drinking water. Wastewater is collected by the city and treated by Metro Water Recovery. Homeowners own the sewer service line from the house to the main in the street.
Permits in Denver
Plumbing permits and inspections are handled by Denver Community Planning and Development. Sewer work in the street also needs a right-of-way permit from the city.

Denver housing and plumbing

Bungalows and foursquares from the 1900s–1930s often have clay sewer lines and partial galvanized supply lines, sometimes spliced to copper during earlier remodels. Post-war ranches from the 1950s typically have cast-iron drains and copper or galvanized supply. Many have finished basements added decades later, which hide pipes that run along cold foundation walls.

Neighborhoods and ZIP codes

Plumbers on Thawline cover Denver and Denver County, including Capitol Hill, Highland, Washington Park, Park Hill, Baker, Berkeley, Harvey Park, Montclair, Central Park, Green Valley Ranch. ZIP codes: 80202 · 80203 · 80204 · 80205 · 80206 · 80207 · 80209 · 80210 · 80211 · 80212 · 80216 · 80218 · 80219 · 80220 · 80222 · 80223 · 80224 · 80230 · 80231 · 80236 · 80237 · 80238 · 80239 · 80246 · 80247 · 80249.

Other Denver conditions that affect plumbing

  • Roots in clay sewer laterals: Mature silver maples, elms and cottonwoods line many older Denver streets, and their roots find every joint in clay sewer pipe. Recurring main line clogs in a pre-1960 home are usually roots.
  • Galvanized supply pipe: Low pressure and rusty water in older homes usually trace back to galvanized steel pipe corroding from the inside. Partial repipes are common where only some runs were replaced.
  • Lead service line replacement: Denver Water runs a lead service line replacement program for homes with lead pipes from the main. If you get a notice, the utility's program can cover replacement of the service line.

How repiping works in Denver

  1. 1

    Survey

    The plumber identifies pipe materials, maps where lines run and plans access points.

  2. 2

    Quote and permit

    Repiping typically needs a plumbing permit from the city or county. The plumber pulls it.

  3. 3

    Run new lines

    New pipe is fished through walls and floors. Fixtures are switched over one area at a time.

  4. 4

    Inspect and test

    The system is pressure tested and inspected before wall openings are patched.

What affects repiping cost in Denver

Every job is priced by the plumber after they see it. These are the things that move the price most. Ask for the price before work starts.

  • Number of bathrooms and fixtures
  • PEX versus copper
  • Number of stories and whether there's basement access
  • Wall patching and painting
  • Replacing the main water line at the same time

Repiping questions in Denver

How long does it take to repipe a Denver home?

A typical whole-house repipe takes two to five days depending on size and access. Water is usually restored at the end of each day so the house stays livable.

Is PEX or copper better for repiping?

Both meet code in most U.S. jurisdictions. PEX costs less, needs fewer joints, and tolerates freezing better than copper. Copper lasts a long time and handles UV and high heat better. Most whole-house repipes now use PEX.

Can I live in the house during a repipe?

Usually yes. Water is shut off during the day while lines are switched over, and most plumbers restore water each evening.

How long does a whole-house repipe take?

Most single-family repipes take two to five days, depending on the number of bathrooms, the number of stories and access from a basement or crawl space.

Also in Denver

Need repiping in Denver?

Tell us what's going on and your ZIP code. You'll be connected with a licensed plumber who serves your area.

Call now to check plumber availability

Call now · +1 (877) 650-0298