Hiring Guides

How to Choose a Plumber in Denver (2025 Guide)

Denver's aging housing stock, hard water, and extreme winter temperatures create unique plumbing challenges. Choosing the right plumber can mean the difference between a lasting fix and a recurring problem.

Find Plumbing Contractors in Denver

Key Takeaways

  • 1
    Verify Colorado master plumber license through DORA before hiring
  • 2
    Denver hard water and freeze risk require a plumber who knows local conditions
  • 3
    Get flat-rate written quotes for larger projects
  • 4
    Emergency rates are 1.5–2x standard — ask upfront
  • 5
    Never hire a plumber who suggests skipping required permits

Colorado Plumbing License Requirements

Colorado requires plumbers to be licensed at the state level. Master Plumber: can pull permits, design systems, and supervise work. Journeyman Plumber: works under master supervision.

Verify licenses through the Colorado DORA website. A legitimate Denver plumber provides their license number without hesitation.

Denver-Specific Plumbing Issues

Hard water: Denver's supply causes mineral buildup in pipes and water heaters. Frozen pipes: Denver winters regularly drop below 0°F — homes with pipes in exterior walls or crawl spaces are at risk. Altitude: affects water pressure and tankless water heater performance.

Questions to Ask Before Hiring

1. Are you a licensed master plumber in Colorado? 2. Are you insured (general liability + workers' comp)? 3. Do you pull permits for work that requires them? 4. What warranty do you offer on parts and labor? 5. What is your service call fee and hourly rate? 6. Do you charge differently for emergency/after-hours calls?

Plumbing Pricing in Denver

Service call fee: $75–$150. Hourly rate: $100–$175/hour. Emergency/after-hours: 1.5–2x standard rates. For larger projects, get flat-rate written quotes from at least 3 licensed plumbers.

Red Flags When Hiring a Plumber

No license number provided. Requests full payment upfront. No written quote. Significantly lower price than all other quotes. Suggests skipping required permits. No physical business address.

Frequently Asked Questions

How much does a plumber charge in Denver?

Service calls start at $75–$150. Hourly rates run $100–$175. Emergency calls are 1.5–2x standard rates.

Do I need a permit for plumbing work in Denver?

Yes, for any new plumbing installation, relocation of fixtures, or water heater replacement.

What plumbing issues are most common in Denver homes?

Frozen pipes in winter, hard water scale buildup, and aging galvanized pipes in pre-1970 homes.

How do I find a good plumber in Denver fast?

Check Google reviews, verify the license on DORA, and call at least 2–3 companies.