Plumbers in Boulder, CO

20 plumbing professionals listed. Review contact details, services, and last-checked information.

20 listed Independent directory How we verify data

What to check before hiring in Boulder

Last checked — Listings show the latest available check date when known. Older or unchecked listings may have outdated phone numbers or business details.
Claimed status — Claimed listings have been reviewed by the business owner for accuracy.
Get multiple estimates — Contact at least 2–3 plumbers before choosing. Ask about emergency availability, warranty, and written estimates.

City

Boulder, CO

Plumbers listed

Service categories

Drain Cleaning, Faucet Repair, Fixture Installation, Garbage Disposal, Gas Line Repair, Hydro Jetting, Leak Detection, Pipe Repair

Plumbing emergency in Boulder?

Shut off the water at the main valve or fixture shutoff first
Take photos of the leak or damage for your records
Call a plumber and ask: "Do you handle emergencies? What's your response time?"
Ask for a ballpark estimate before they arrive — emergency rates often differ

License Verification

Verify plumber licensing in Boulder:

Search Colorado Department of Regulatory Agencies – Plumbing for license status

Permit Guidance

Many municipalities in Colorado require permits for plumbing work including water heater replacement, repiping, and sewer line repairs. Contact your local building department for requirements specific to Boulder.

Water heater replacements and new installations usually require a permit.
Major repiping or sewer line work typically needs a permit and inspection.
Some jurisdictions allow homeowners to pull permits; others require a licensed contractor.
Always ask your plumber: "Will you pull the necessary permits and schedule inspections?"

Water & Sewer Information

Boulder water and sewer service is typically managed by the municipal water department or a local utility district. Contact your provider for information about water quality, service line responsibility, and sewer connection requirements.

Before hiring a plumber for sewer work, confirm which portion of the sewer line is your responsibility (typically from your house to the property line or main).

Common Services in Boulder

Plumbers in Boulder, CO

Our directory lists 20 plumbing professionals serving Boulder, Colorado, from the historic Downtown and University Hill to the foothill neighborhoods of Chautauqua and Wonderland Lake. Whether you need emergency repairs after a cold snap or routine maintenance for your older home in a neighborhood like Newlands or Goss-Grove, finding a qualified Boulder plumber starts here.

Local Plumbing Considerations

Boulder's high elevation (5,430 feet) and hard water from the mountains mean mineral buildup in pipes is common, especially in older neighborhoods like Whittier and Pleasant View. Descalers or water softeners are often recommended.
Winter temperatures frequently drop below freezing, so insulating exposed pipes in crawl spaces and attics is crucial. Homes in South Boulder and Gunbarrel, with more recent construction, often have pex piping that handles freeze-thaw better.
City and county permits are required for most plumbing work, particularly in flood zones near Boulder Creek and in historic districts like Mapleton Hill. Always verify that your plumber pulls the necessary permits.

Available Services

Plumbers listed in Boulder commonly offer these services:

Commercial
Emergency
Installation
Repair
Water Heaters
Gas
Drain/Sewer

Why Choose a Local Boulder Plumber

Local plumbers understand Boulder's unique historic homes, from Victorian houses in Whittier to mid-century moderns in Newlands, and know how to work with older plumbing systems.
They are familiar with Boulder's climate, including freeze-thaw cycles and snow melt runoff, ensuring durable repairs.
Boulder plumbers maintain relationships with local suppliers and can source parts quickly, reducing downtime.
They are up-to-date on Boulder County and city plumbing codes, including eco-friendly and water conservation requirements.

What to Ask Before Hiring

Do you carry liability insurance and workers compensation specific to Boulder County requirements?
What is your estimated response time for emergencies, especially during Boulder's winter storms?
Do you provide written estimates before starting work, and do you include details on permit fees?
Is your work warrantied, and do you offer maintenance plans for boilers and water heaters common in Boulder homes?

Frequently Asked Questions About Plumbing in Boulder

Is Boulder's water hard? Yes, Boulder water is moderately hard due to mineral content from the mountains. Many homeowners install water softeners to protect fixtures and appliances.
Should I prepare my pipes for winter? Absolutely. Especially in older neighborhoods like Martin Acres, outdoor faucets and unheated crawl spaces are prone to freezing. Insulate pipes and disconnect hoses before the first freeze.
What type of piping is common in Boulder homes? Older homes in areas like University Hill often have copper or even galvanized steel, while newer developments in Gunbarrel use PEX. Knowing your pipe type helps in repairs.
Are there local rebates for water-efficient fixtures? Yes, the city of Boulder and Boulder County often offer rebates for WaterSense-certified fixtures and rainwater harvesting systems. Check with your plumber for eligibility.

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