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ContractorsRanked

Emergency Plumbers in Boulder, CO (2026)

Top 50 of 479 plumbers, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 plumbers on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

Burst pipe or major leak: shut off the main water valve first. If water reaches outlets or the panel, stay clear and call 911.

The short answer

  1. 1

    #1 for emergency plumbing in Boulder: Roto-Rooter Plumbing & Water Cleanup, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency plumbers in Boulder at a glance

Top emergency plumbers in Boulder at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Roto-Rooter Plumbing & Water Cleanup914.8★ (572)Boulder24/7
2King Rooter & Plumbing | Plumber Boulder, CO | Drain Cleaning | Sewer & Water Line | Tankless Water Heater Repair904.9★ (190)Boulder24/7
3AAA Service Plumbing, Heating & Electric904.8★ (12,904)Golden, 21 mi away24/7
4Benjamin Franklin Plumbing of Denver894.8★ (2,904)Westminster, 16 mi away24/7
5Big Apple Plumbing LLC - Broomfield, CO895.0★ (496)Broomfield, 11 mi away24/7
6Blue Sky Plumbing, Heating, Cooling & Electric894.8★ (4,249)Wheat Ridge, 18 mi away24/7
7Boulder Water Heaters895.0★ (64)Boulder24/7
8Roto-Rooter Plumbing & Water Cleanup884.8★ (1,492)Arvada, 17 mi away24/7
9Boss Rooter & Restoration885.0★ (105)Berthoud, 7 mi away24/7
10Big Apple Plumbing LLC - Westminster, CO884.8★ (897)Westminster, 17 mi away24/7

Call an emergency plumber in Boulder now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency plumbers in Boulder, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 479 is on the plumbers page.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  2. #2 King Rooter & Plumbing | Plumber Boulder, CO | Drain Cleaning | Sewer & Water Line | Tankless Water Heater Repair

    Based in Boulder

    90/100CR Score

    Ranked #2 because of its Google rating and availability: 4.9★ from 190 Google reviews, open 24/7.

    • 4.9★ from 190 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1434 Spruce St Suite 100, Boulder, CO 80302
    View profile for King Rooter & Plumbing | Plumber Boulder, CO | Drain Cleaning | Sewer & Water Line | Tankless Water Heater Repair(720) 776-9570

Top 50 of 479 plumbers by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

plumbers in Boulder, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Superior Boulder Plumbing Experts865.0★ (27)In Boulder
27Jim Needham Heating Cooling Plumbing and Drain864.9★ (5,597)19 mi
28KMS Plumbing | Two Plumbs Up Plumber865.0★ (172)18 mi
29All Sewer and Plumbing Services LLC864.9★ (172)16 mi
30Group Plumbing Boulder865.0★ (20)In Boulder
31Hot Water Now!864.7★ (288)15 mi
32Welzig Heating, Air, Plumbing & Electric864.9★ (1,269)13 mi
33Expert Plumbers Boulder865.0★ (18)In Boulder
34Blue Sky Plumbing, Heating, Cooling & Electric864.9★ (494)23 mi
35Drain Terrier Plumbing864.8★ (363)20 mi
36Garvin's Plumbing and Sewer864.9★ (66)13 mi
37Triple S Sanitary Sewer Services LLC854.9★ (245)20 mi
38Big Apple Plumbing LLC - Thornton, CO855.0★ (88)17 mi
39Fast Longmont Plumbing Solutions855.0★ (22)8 mi
40Colorado Best Plumbing854.9★ (137)13 mi
41Jones Brothers Plumbing & HVAC854.9★ (78)In Boulder
42Affordable Plumbing and Heat854.6★ (333)17 mi
43Fix-it 24/7 Plumbing, Heating, Air & Electric854.7★ (4,159)17 mi
44Lakewood Plumbing854.6★ (490)19 mi
45B-Line Plumbing & Drains855.0★ (100)18 mi
46Roto-Rooter Plumbing & Water Cleanup854.8★ (616)25 mi
47SUPERIOR MILE HIGH PLUMBING855.0★ (122)20 mi
48Broomfield Rapid Plumbing855.0★ (38)13 mi
49Cardom Plumbing & Heating854.8★ (73)14 mi
50Plumbline Services854.9★ (1,917)18 mi

How we ranked emergency plumbers in Boulder

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 plumbers are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation25%Bayesian-adjusted Google star rating
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2
Review volume10%log10(reviews + 1) against the list maximum
Recency10%Share of reviews from the last 12 months
Availability20%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radius
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)

Emergency plumbers in Boulder: questions

Which plumbers in Boulder are open 24/7?

25 on this list post 24/7 hours, including Roto-Rooter Plumbing & Water Cleanup, King Rooter & Plumbing | Plumber Boulder, CO | Drain Cleaning | Sewer & Water Line | Tankless Water Heater Repair, AAA Service Plumbing, Heating & Electric, Benjamin Franklin Plumbing of Denver and Big Apple Plumbing LLC - Broomfield, CO.

Who is ranked #1 for emergency plumbing in Boulder, CO?

Roto-Rooter Plumbing & Water Cleanup is #1, with a CR Score of 91 out of 100 on emergency weights.

How are emergency plumbers in Boulder ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 plumbers are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the plumber arrives?

Burst pipe or major leak: shut off the main water valve first. If water reaches outlets or the panel, stay clear and call 911.

How many emergency plumbers here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Boulder

  1. October 2026: CR Scores recalculated for 479 plumbers serving Boulder.
  2. October 2026: 2 duplicate listings merged.

More emergency and plumbing pages