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Company Facts
ONYX PLUMBING & GAS at a Glance
The work
- Best for
- gas line work and urgent leak calls
- Primary service
- Plumbing
Where
- Headquarters
- Minneapolis, MN
- Service area
- Minneapolis
- Emergency service
- Yes, 24/7
Money and guarantees
- Free estimates
- Yes
- Financing
- Not advertised
- Workmanship warranty
- One-year parts and labor warranty
Editorial Review
Our Take on ONYX PLUMBING & GAS
Onyx's reviews point to a real strength in emergency gas work, including a case where twelve other companies couldn't respond same-day and Onyx did within an hour. Seven-day hours help, but the 7 PM cutoff means it isn't a true 24-hour option.
Best for: gas line work and urgent leak calls
What We Like
- Perfect 5.0 rating from 129 Google reviews, read September 17, 2026
- Open seven days a week, 7 AM to 7 PM
- Specializes in gas line work alongside general plumbing
- Responded to an after-hours gas leak within an hour when 12 other companies could not
- Price-matched a competitor's quote after reviewing the same job photos
Things to Consider
- Hours stop at 7 PM, not a true 24-hour operation
- License number not published on the site reviewed
- Warranty and free estimate terms not stated
Google Reviews for ONYX PLUMBING & GAS
Customer ratings shown here come from Google. They are separate from our editorial review above.
Google rating
5.0
Based on 129 Google reviews
Review data updated September 17, 2026
Rating Distribution
- 5 stars99%
- 1 star1%
iAbout this distribution
The distribution reflects the 129 Google reviews available when this profile's review data was last refreshed on September 17, 2026. Ratings and counts change continuously on Google, so figures here may lag the live profile slightly. We publish only the values returned by the source, never estimates for missing bands.
Recent Google Reviews
- Nicholas Bussa5.0I had a major plumbing leak happen and couldn’t have had a better experience with Onyx Plumbing. Trenton and his apprentice Quintin were smart, hard working, and were able to take care of my emergency and I’m so grateful. They are top notch and I’d recommend to anyone for plumbing issuesSeptember 2026Google
- Sean Haley1.0Response was quick. Disappointed in the service and upselling by John. He saw the year of the water heater and immediately suggested replacement with no other options to repair or look at it. Explained we should check the pilot light first because the issue may be simple. He did not seem happy and made me sign a document explaining he would be charging the full amount of a complete pilot light repair even if it was a simple fix. He was able to get it working in 5 mins and I had to pay the full amount and explained if it went out again it would be another charge to come back. Would never recommend this service to anyone. It felt that unless I was interested in a full replacement I was wasting his time and the only way for him to make up for it was to charge me a full pilot replacement. The actual pilot was never replaced either.. No misunderstanding. Very clearly understood what they wanted and it did not fit the needs of the situation or customer. This is poor customer service. I'm glad the owner is happy with what they provided and decided to write a paragraph about a word choice rather then address the price and poor service. Confirms my thoughts about being unhappy about not falling for their "selling technique".September 2026Google
- Peyton Anderson5.0John did a fantastic job! Appreciate the quick and excellent service!August 2026Google
- Michael Meyer5.0John responded quiuckly for a city required back flow valve inspection. He had parts with him and completed the job quickly and will file forms with city for permit approval. Great guy. Friendly, efficient and knowledable. Will contact them for next plumbing needs.August 2026Google
- Mariah Talsma5.0John was very friendly and came out right away to help fix a leak. He was efficient and very helpful!July 2026Google
- Stephen Engels5.0Fantastic service! Responded quickly to both of my calls. Very professional and job well-done!July 2026Google
Ranked#2of 10 plumbers in Minneapolis, MNre-checked September 2026
Editorial Ranking
Why ONYX PLUMBING & GAS Made Our Top 10
It holds position 2 in 10 Best Plumbers in Minneapolis, MN.
See the Full Minneapolis RankingResearched by Dana Whitfield · positions cannot be bought
Services Offered
- Emergency plumbing
- Drain cleaning
- Water heater repair
- Sewer line repair
- Leak detection
- Gas line work
- Fixture installation
Specialties
- Gas line services
- Emergency plumbing
- Backflow testing
- Residential plumbing
- Commercial plumbing
- Gas line installation
- Gas line repair
- Gas line replacement
Areas Served
Based in Minneapolis, MN.
iAbout service coverage
Coverage is as the business describes it, cross-checked against where its recent documented work is. A company will often travel beyond the areas listed here for a large job and decline a small one at the same distance, so confirm your address before scheduling.
About ONYX PLUMBING & GAS
Onyx Plumbing & Gas, based on Cambridge Street in Minneapolis, has built a perfect 5.0 rating from 129 Google reviews, read September 17, 2026, with gas line work as a clear specialty alongside general plumbing.
The reviews that stand out most involve urgent gas situations. One customer had CenterPoint Energy shut off their gas after finding small leaks and said technician Trenton showed up within an hour to fix the problem. Another had a basement gas leak after hours and called twelve other companies with no availability, some quoting up to three days out, before Onyx said they would be there in an hour, and were. Reviewers also mention running a steel gas line for a dryer replacement and general work like outdoor spigot replacement and adding shut off valves in finished spaces.
Technicians Trenton and John both come up by name in multiple reviews, described as friendly and thorough, and one reviewer noted Onyx matched a competitor's price after getting quotes from both companies for the same photographed job.
Hours run seven days a week from 7:00 AM to 7:00 PM, wider than most plumbers on this list, though not a full 24-hour operation. Onyx does not list a license number, warranty terms or free estimate policy on the pages reviewed.
Who it suits: anyone dealing with a gas line issue or who wants weekend availability without paying emergency after-hours rates. Who it suits less well: someone with a true overnight emergency, since hours stop at 7:00 PM.
Before booking, ask for the Minnesota plumbing and gas piping license number, confirm the diagnostic fee up front, and ask whether after-hours rates apply outside the 7 AM to 7 PM window.
iWhere this information comes from
Company history, ownership and capability details on this page are provided by the business and reviewed by our editors for plausibility and consistency. They are not the same as the credentials block, where each item carries its own verification status and source.
Credentials
- Plumbing Contractor LicenseState of Minnesota · PC150117Reported
- City Business LicenseCity of Minneapolis · TLIC26088Reported
- Mechanical Contractor LicenseState of Minnesota · MB100195Reported
- Plumbing licencePC150117Reported
- Plumbing licenceTLIC26088Reported
- Minnesota state-licensed Master PlumberReported
iWhat verified means here
Verified means we checked the credential against the authority that issues it and recorded the date. Reported means the business told us and we could not independently confirm it. We publish both, labelled, rather than dropping what we could not check.
Reputation by Source
We show each source separately rather than blending them into a single score, because they measure different things.
Google
5.0/ 5
129 customer reviews
TenBestFind
Editorially reviewed
Ranked #2 in Minneapolis plumbers, September 2026
Company Pricing & Estimates
What this company publishes about its own pricing.
- Free estimates
- Yes
- Inspection fee
- No dispatch fees on any service call
- Emergency callout
- Available 24/7
- Workmanship warranty
- One-year parts and labor warranty
Project Photos
Business-submitted, reviewed by our editors
Project Videos
From the company's own channel and website. Loads only when you press play.
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ONYX PLUMBING & GAS FAQs
What licenses does Onyx Plumbing & Gas hold?
Onyx publishes a Minnesota plumbing contractor license (PC150117), a City of Minneapolis business license (TLIC26088), and a Minnesota mechanical contractor license (MB100195) on its website.
What are Onyx Plumbing & Gas's hours?
Onyx is open seven days a week, 7:00 AM to 7:00 PM. That is wider than most plumbers on this list, though it stops short of a full 24-hour operation.
Does Onyx offer a warranty?
Yes, Onyx states a one-year parts and labor warranty on its website, and also advertises free estimates.
Is ONYX PLUMBING & GAS licensed and insured?
We checked 0 of 6 credentials against the issuing authority. Verified items carry the date we checked; reported items are what the business told us and we could not independently confirm.
What areas does ONYX PLUMBING & GAS serve?
Minneapolis. Coverage is as the business describes it, cross-checked against where its recent documented work is. Confirm your address before scheduling, particularly at the edge of a service area.
Does ONYX PLUMBING & GAS offer emergency service?
Yes, the company lists emergency availability. Response time depends on demand, and after a storm every company in the market is stretched.
What warranty do they offer?
One-year parts and labor warranty. There are usually two warranties on a job: the manufacturer covers materials, the contractor covers workmanship. Get both in writing and check whether the workmanship coverage transfers if you sell.
How was this profile built?
Credentials come from issuing authorities, ratings from the company's Google Business Profile with the date we read them, and the editorial take from our own review of estimates, warranty documents and public feedback. Anything the business told us is labelled as reported.
Can a business pay to improve its profile?
A business can subscribe to manage its own listing details, and it can buy a labelled sponsored placement. Neither changes a ranking position or the editorial assessment on this page.
Is Something Incorrect?
Business information changes. Tell us about an address, phone, website, service area, credential or ownership change, or let us know if this company has closed.
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Claiming lets you correct and maintain the factual information on this profile. Claiming or upgrading a profile does not guarantee inclusion in a TenBestFind ranking and never affects ranking position, which is decided editorially.
About This Business Profile
- Last reviewed
- September 2026
- Profile last updated
- September 18, 2026
- Google review data updated
- September 17, 2026
- Reviewed by
- Dana Whitfield, Senior editor, home services
- Sources checked
- Issuing authorities, Google Business Profile, Company website
- Sponsorship status
- No commercial relationship
Dana runs the editorial side of TenBestFind. She built the research process, decides which markets get covered next, and writes the plumbing and chimney rankings herself. Before this she spent eleven years as a consumer reporter covering contractor licensing and home improvement fraud.