All Licensed Plumber Pros in Thornton
Brothers Plumbing, Heating & Electric
4.7·8.8k reviews·
In ThorntonGoogle Verified
+5 more
Top pick4.7Google
Strengths
Exceptional emergency responsiveness—multiple reviewers cite…
Honest, competitive pricing without upselling—3 reviewers…
Proactive communication—reviewers note they go above standard:…
High-quality workmanship with attention to detail—4 of 5 reviews…
Concerns
Not budget-tier pricing—one reviewer explicitly warns that…
AAA Service Plumbing, Heating & Electric
4.8·13k reviews·
15 mi away — Serves your areaGoogle Verified
+2 more
Top pick4.8Google
Strengths
92 of 100 reviewed are 5-star with reviewConsistency 0.86
After-hours dispatch documented
Named techs (Dominic, JD, Michael Wise, Joey, Z) appear…
Concerns
Pricing called expensive in 2 of 100 reviews
One 1-star review describes repeat upsell attempts on furnace…
Jim Needham Heating Cooling Plumbing and Drain
4.9·6.1k reviews·
In ThorntonGoogle Verified
+4 more
Top pick4.9Google
Strengths
Fair-pricing theme cited in 2 of 5 sampled reviews
Fast response cited — one reviewer 'Called at 8 and he was here…
Whole-house water filtration installs called out
Concerns
Not enough data to identify weaknesses
GK Plumbing
5·203 reviews·
In ThorntonGoogle Verified
+4 more
Top pick5.0Google
Strengths
Same-day fixes including post-Thanksgiving Sunday water heater…
Reviewers consistently describe pricing as fair and honest
Holiday-weekend coverage cited
Preliminary listing — full review analysis coming soon
Royal Services Plumbing, Heating, & Air
4.9·498 reviews·
In ThorntonGoogle Verified
+5 more
Top pick4.9Google
Strengths
Within-an-hour weekend arrivals
Free estimate model with multiple options laid out before work…
Reviewers specifically note no-surprises pricing and detailed…
Concerns
A 3-star reviewer simply notes kinda expensive
Big Apple Plumbing LLC - Thornton, CO
5·89 reviews·
In ThorntonGoogle Verified
+4 more
Avoid5.0Google
Concerns
Not enough data to identify weaknesses
Big Apple Plumbing LLC - Westminster, CO
4.8·896 reviews·
In ThorntonGoogle Verified
+4 more
Avoid4.8Google
Concerns
Not enough data to identify weaknesses
All Sewer and Plumbing Services LLC
4.9·204 reviews·
In ThorntonGoogle Verified
+4 more
Top pick4.9Google
Strengths
Customer quoted $20K for sewer mainline replacement by another…
Realtor cites Jeff as ethical and explicitly notes 'he will never…
Tech Eloy cleared a clog two other plumbing companies had failed…
Concerns
Older 2-star Yelp from 2016 reports trench backfill issues
Plumbing Connect Systems LLC
5·51 reviews·
In ThorntonGoogle Verified
+5 more
Top pick5.0Google
Strengths
Same-day burst pipe response during extreme cold
Quote held even when job got trickier
Galvanized and cast iron to modern repipe with demo and cleanup…
Preliminary listing — full review analysis coming soon
To the T Plumbing Heating & Air
4.9·146 reviews·
In ThorntonGoogle Verified
+2 more
Top pick4.9Google
Strengths
Sent a plumber within an hour on a Saturday for a dead water…
Office staff (Karen, Sarah, Rae, Megan) named repeatedly across…
Showed up within an hour over the Christmas-Eve holiday week to…
Concerns
$489 minimum fee for a quick 1-hour job was not disclosed up…
Sink-install quote came in near $3,000 for a 'simple double metal…
Cuevas Brothers Plumbers Company
4.8·130 reviews·
In ThorntonGoogle Verified
+4 more
Top pick4.8Google
Strengths
Tech Curtis flagged his own mistake on a price estimate and made…
Same-day main-water-valve replacement in tight crawlspace passed…
Worked the same Sunday afternoon they were called to clear a…
Concerns
7 of 100 reviews mention slow response
Affordable Plumbing and Heat
4.6·332 reviews·
In ThorntonGoogle Verified
+4 more
Avoid4.6Google
Concerns
Not enough data to identify weaknesses
Top Northglenn Plumbers
5·11 reviews·
In ThorntonGoogle Verified
+4 more
Avoid5.0Google
Concerns
Not enough data to identify weaknesses
Westminster Plumbing
4.9·10 reviews·
In ThorntonGoogle Verified
+3 more
Top pick4.9Google
Strengths
Tankless water heater replaced same-day after diagnosis
Sewer-line replacement work uses video camera to find the problem…
11-year Westminster resident calls them 'my guys from here on…
Preliminary listing — full review analysis coming soon
Big Apple Plumbing LLC - Broomfield, CO
5·505 reviews·
8 mi awayGoogle Verified
+4 more
Top pick5.0Google
Strengths
After-hours water heater rescue
Same-day dispatch confirmed
Honest no-charge call
Concerns
Same-day pricing flagged as fairly expensive on at least one job…
Common Licensed Plumber Scenarios
BBB Accredited
BBB accreditation means the business has met standards for trust, advertising, and complaint resolution. It's a verified third-party credential.
Licensed and Insured
All plumbers on our site are licensed in their state. BBB accreditation adds an additional layer of accountability and complaint resolution.
Verified Track Record
BBB-accredited plumbers have a public complaint history and resolution record you can review before hiring.
Warranty Compliance
For warranty-sensitive work (repiping, water heater installation), a licensed and accredited plumber provides documentation that satisfies manufacturers and insurers.
Frequently Asked Questions
How do I verify a plumber's license in CO?
In CO, you can verify plumber licenses through the state licensing board website. All plumbers listed on our site are licensed. Plumbers below with the BBB badge have additional third-party accreditation and a public complaint record.
Why does BBB accreditation matter?
BBB accreditation means the plumber has agreed to resolve complaints, maintain honest advertising, and meet trust standards. It's not a guarantee of quality, but it adds accountability — the BBB tracks complaints and resolution rates publicly.
Are all plumbers in Thornton licensed?
By law, plumbers performing work in Adams County must be licensed. However, some unlicensed handymen advertise plumbing services illegally. Hiring an unlicensed plumber voids insurance claims and can create permit issues when selling your home.
What's the difference between a journeyman and master plumber?
A journeyman plumber has completed an apprenticeship and passed the licensing exam. A master plumber has additional years of experience and can pull permits, supervise journeymen, and run a plumbing business. Both are qualified for residential work.
Other Services in Thornton
Drain Cleaning Water Heater Repair Burst Pipe Repair Repiping Bathroom Remodel Plumbing Sewer Repair Sewer Line Replacement Toilet Repair Faucet Repair Garbage Disposal Repair Sump Pump Repair Gas Line Repair Slab Leak Repair Water Line Repair Kitchen Remodel Plumbing Hydro-Jetting 24-Hour Plumber Same-Day Plumber Affordable Plumber Plumber Cost Clogged Drain No Hot Water Water Leak Low Water Pressure Frozen Pipes Sewage Backup All Emergency Plumbers
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