Independent profile — not affiliated with Southwest Gas

Southwest Gas

Southwest Gas Corporation is the regulated natural gas utility subsidiary of Southwest Gas Holdings (NYSE: SWX), serving about 2.29 million customers in Arizona, Nevada and California as of June 30, 2026. This page collects the company's own billing, payment-help and leak-safety guidance, regulator complaint routes for each state, the 2024 Arizona pipe-safety consent agreement, Nevada penalties, rate cases in the three states, and BBB and Trustpilot figures as displayed on October 12, 2026.

COMPLAINTS2
VERIFIED PHONE877-860-6020
LAST CHECKED2026-10-12
CONSUMER ALLEGATION

Complaints & Reviews on USAComplaints

USAComplaints currently maintains 2 historical complaints about Southwest Gas, published in 2012. No approved complaints have been published on this site during the last three years. For a current reputation snapshot, see the independent sources below.

EXTERNAL SOURCE

Independent Sources

Shown for context — not merged with USAComplaints' own numbers.

BBB: 0 complaints
BBB: 5 complaints
Trustpilot: 1 reviews,
VERIFIED

Contacts & Payment

VERIFIED

Locations

TypeAddress
Headquarters8360 S. Durango Dr. Las Vegas NV 89113
Mailing addressP.O. Box 24531 Oakland CA 94623-1531
Mailing addressPO Box 98512 Las Vegas NV 89193-8512
EDITORIAL

Southwest Gas billing, payments, leaks and complaints: what the company says (checked October 12, 2026)

Southwest Gas Corporation delivers natural gas to residential, commercial and industrial customers in parts of Arizona, Nevada and California. Its own pages (opened October 12, 2026) are the first place to look for billing, payment-help and service steps; this page quotes them and then lists the regulators you can go to if the company does not resolve a dispute.

Billing and account questions. The company's contact page says: 'Email Us or call Customer Solutions at 877-860-6020 Monday - Friday 7 a.m. - 6 p.m. PST (excluding holidays). Hearing impaired, use 711.' Its FAQ says call volume 'can be heavy on Mondays, the end and beginning of each month and the day before or after a major holiday', and that if the wait is long the phone system may offer a return call (it can reach capacity at very high volume). MyAccount lets you view 'up to two years of your previous payments, bills and usage history'.

If you cannot pay in full. The FAQ says a 5-day payment extension can be requested online, in the app or through the automated line (877-860-6020, 24/7) and that 'all other types of payment arrangements can be requested by calling Customer Solutions'. Its assistance pages describe an Installment Plan 'to pay your bill over an extended period of time' before service is discontinued, an Equal Payment Plan that averages usage over the year, and referrals to government and local agencies. The Nevada assistance page states: 'Disconnection of service for non-payment has resumed.' Programs differ by state, so use the page for your state.

Payment fees. Per its FAQ, there is no convenience fee for paying through MyAccount online; paying by credit, debit or electronic check through other channels carries a fee, stated as $2.50 for residential customers with a cap of $750.00, and a 1.5 percent surcharge for commercial customers.

Why a bill can rise. In Arizona the company says gas cost rates are adjusted monthly and 'the price you pay is the same as we paid, with no markup or profit to the Company', while the delivery charge changes only through a general rate case. Nevada gas cost rates are adjusted quarterly, according to its Nevada rates page. These are the company's statements; if you dispute a specific bill, ask Customer Solutions for the meter-read dates, therms billed and rate schedule on your account and keep a record of each call.

Gas leak or emergency. The company's FAQ says: 'call 911 and Southwest Gas at 877-860-6020 immediately', customer or not, and lists the rotten-egg odor, hissing or roaring sounds, blowing dirt or bubbling water as signs. It says Southwest Gas 'owns and rigorously maintains the natural gas piping leading up to and including the meter', while piping and appliances beyond the meter belong to the customer or property owner.

If the company does not resolve it. Gas rates and service rules are set by the state commissions, so complaints go to the commission for the state where you live: the Public Utilities Commission of Nevada, the Arizona Corporation Commission or the California Public Utilities Commission (see the FAQ below for each route as the agencies describe it).

EDITORIAL

Southwest Gas regulators: Arizona pipe-safety consent agreement, Nevada fines, rate cases

Arizona pipe-safety consent agreement (2024). The Arizona Corporation Commission (ACC) press release of November 7, 2024 says the Commission 'unanimously voted on Wednesday November 6, 2024, to approve a Consent Agreement' between Southwest Gas Corporation and the ACC Office of Pipeline Safety (AZOPS), resolving issues from two 2021 incidents in Chandler (an explosion that injured four people) and Scottsdale (docket G-01551A-21-0305). The release says AZOPS investigators concluded that Driscopipe polyethylene M7000 and M8000 pipe degraded in high-heat areas, leading to leaks, and that Southwest Gas failed to properly map where the pipe was located and needed to increase leak patrols; it says 'Southwest Gas accepted responsibility and agreed to pay $2,000,000 to the Commission as a civil penalty', must plan to replace or abandon newly discovered, previously unmapped services with no active meter sets or stubs that contain the piping, must notify AZOPS of leaks on M7000 and M8000 services, and agreed to leak patrols six times per calendar year. A commissioner's amendment, approved with it, made clear that approval is not an authorization to recover those costs in a rate case. ABC15's report of the agreement, dated October 31, 2024, describes the same terms in more detail (a $2 million penalty paid to the state's General Fund 'which shall not be recoverable in rates'; replacement or abandonment of inactive Driscopipe 7000 and 8000 stubs and services within 6 months of discovery in the Phoenix, Yuma and Bullhead City districts and 12 months elsewhere in Arizona; reporting of grade 1 or 2 leaks to the state pipeline safety office within an hour of visual confirmation) and quotes the agreement: 'Southwest Gas does not admit nor deny any safety violations.' ABC15 also quotes the company's statement that the agreement 'ensures the insights gained from this process lead to positive change'. The ACC release and the ABC15 report use different words for the company's position (accepted responsibility; does not admit nor deny); both are shown as published, and the agreement text itself was not opened.

The company's own account of Driscopipe 8000. Its Driscopipe page says the pipe was installed by Southwest Gas between approximately 1980 and 1999, that 'as of May 13, 2022, there are approximately 10,000 miles of Driscopipe 8000 in use throughout Arizona', that 'the large majority' of it is operating as designed but that the company 'has experienced leaks on certain segments... that resulted from premature degradation', that it had identified 20 degradation leaks in Arizona since 2018, and that it had replaced or abandoned 'more than 307 miles' identified by its 2014 risk-based prioritization. Those figures are the company's, dated on its page, and may have changed since.

Nevada (2017 and 2019). The Nevada Independent reported on August 14, 2019 that the Public Utilities Commission of Nevada (PUCN) voted to approve a $94,000 fine because the company had sought to include the cost of a replacement backhoe, destroyed in a 2016 gas leak and explosion caused by a Southwest Gas construction crew, in proposed rates, after a 2017 settlement that included a $300,000 civil penalty and an order not to recover that cost from customers. The article quotes the company's lawyers calling the inclusion an 'administrative error' caught before customers paid it, and the commissioners' written rejection of that framing. The PUCN order itself was not opened; this is the news report.

California Air Resources Board (2013 list). The Air Resources Board's page 'Southwest Gas Corporation Case Settles for $300,000.00' says the company reported natural gas supplied to California late for 2011 under the greenhouse gas reporting regulation, 'promptly corrected its omission and fully cooperated', and agreed to pay $300,000. This concerned an emissions report, not customer service.

Rate proceedings (not enforcement). Arizona: an ACC-approved revenue increase of about $80.2 million implemented in March 2025 (average residential bill up $3.75 per month per the company), and a new general rate case application filed February 27, 2026 seeking about $101.0 million (10.4 percent) per the June 2026 Form 10-Q, with company-estimated impact of about $5.18 more per month for a 24-therm customer and new rates expected by April 2027, subject to approval. Nevada: general rate case Docket No. 26-03021, filed March 17, 2026 per the company's Nevada page (the 10-Q gives March 18, 2026), originally seeking about $71.3 million; the 10-Q says the request was later updated to approximately $74 million for the certification period ended May 31, 2026, with new rates expected in October 2026 subject to approval. The company's Nevada page, as opened October 12, 2026, still shows the $71.3 million figure and company estimates of roughly $7.11 per month (Southern Nevada) and $6.05 per month (Northern Nevada) for an average residential customer; no Nevada order was found in the sources checked on October 12, 2026. California: Application A.24-09-001 (test year 2026 general rate case, filed September 6, 2024). The CPUC's fact sheet dated August 13, 2026 says the Commission adopted the second of two decisions that completed the case: the first, D.26-05-013 (May 2026), approved a settlement among the company, Cal Advocates and SBUA (revenue increase $39.49 million); the August decision adopted a $32.6 million total revenue requirement increase, against an original request of $43.67 million, a 10.00 percent return on equity (requested 11.35 percent), and residential average rate increases of 22.36 percent for Southern California and 5.17 percent for the combined Northern California and South Lake Tahoe territory (average bill changes of $13.89, $5.07 and $5.07 per month). Per the 10-Q, rates based on the $39.5 million settlement took effect July 1, 2026 pending the final decision, and the CPUC fact sheet says the company will file advice letters within 30 days of the decision's effective date to implement final rates. Requests are proposals until the commission decides.

EDITORIAL

Who Southwest Gas is: Southwest Gas Corporation and Southwest Gas Holdings

Southwest Gas Corporation is a California corporation and the regulated gas utility subsidiary of Southwest Gas Holdings, Inc. (Delaware; NYSE: SWX). Per the June 2026 Form 10-Q it had approximately 2,293,000 customers on June 30, 2026: 1,231,000 in Arizona, 854,000 in Nevada and 208,000 in California (the 2025 Form 10-K, filed February 25, 2026, gave approximately 2,281,000 on December 31, 2025), and is regulated by the Arizona Corporation Commission, the Public Utilities Commission of Nevada and the California Public Utilities Commission. Its filing address is 8360 S. Durango Dr., Las Vegas, Nevada.

The holding company's 10-K says it deconsolidated its utility infrastructure services business Centuri in August 2025 and sold its remaining Centuri shares on September 5, 2025, so the business is now 'solely comprised of the Natural Gas Distribution segment'. It sold its pipeline business MountainWest on February 14, 2023. The utility is the entity that bills customers; Centuri and MountainWest are separate companies.

Gas distribution here is a regulated service: the 10-K says rates, practices and service territories are regulated by the state commissions, and the company's rates pages describe purchased gas adjustments that pass gas cost through to customers. Service areas listed on its contact page include Phoenix and Tucson in Arizona, Barstow, Big Bear and Victorville in California, and Las Vegas, Carson City and Elko in Nevada.

EDITORIAL

Southwest Gas complaint record: archive posts, BBB and Trustpilot as displayed

Archive posts. Two approved posts in our archive name Southwest Gas, both from 2012: one from a small-business customer (March 2012) alleging that gas bills rose sharply after the account changed into the writer's name and that a company technician found no problem; one from a homeowner (June 2012) alleging that the company would not turn on service for a lender's inspection while an earlier bill of $490.90 was outstanding. These are one-sided consumer accounts from 2012 and the company's side is not recorded in them; two posts are too few to draw any conclusion about how the company handles complaints.

BBB, as displayed on October 12, 2026. BBB shows several files. The one titled 'Southwest Gas' (P.O. Box 24531, Oakland, CA) is rated F, not accredited, with the stated reason 'Failure to respond to 5 complaint(s)'; its complaints tab shows 5 complaints in the last 3 years, 3 of them in the last 12 months, all with status 'Unanswered', of types Service or Repair Issues, Product Issues and Customer Service Issues. The 'Southwest Gas Corporation' file for Las Vegas is 'Not Rated' with 0 complaints. These are separate BBB files and are not combined; BBB's rating reflects its own formula, including response to complaints filed with BBB.

Trustpilot, as displayed on October 12, 2026. The profile for swgas.com is unclaimed, shows one review (3.7) and says the company has not invited customers to review; it is not a meaningful sample.

Regulator complaint counts. We have not obtained complaint statistics from the ACC, PUCN or CPUC for this page, and CFPB data does not apply to a gas utility.

EDITORIAL

Southwest Gas court record: injury lawsuits and the company's disclosure

Chandler explosion lawsuits. ABC15 reported on October 14, 2023 that four men injured in the August 2021 Chandler strip mall explosion, which it says was blamed on a leaking Driscopipe 8000 line, had sued Southwest Gas and Chevron Phillips (the pipe manufacturer) and that the lawsuit settled with a confidential amount. These were individual injury suits; no docket number is shown here because we did not open the court record.

Company's disclosure. The 2025 Form 10-K, Note 15, says the company and Southwest Gas 'are defendants in miscellaneous legal proceedings' and that management's opinion is that no litigation or regulatory proceeding 'will have a material adverse impact' on financial position, results of operations or cash flows. The company also states it carries excess liability insurance with a self-insured retention of $1.0 million per incident plus a $4.0 million annual aggregate for the policy period August 2025 to July 2026.

EDITORIAL

Is Southwest Gas Legitimate?

Southwest Gas Holdings, Inc. is an SEC registrant (CIK 0001692115; NYSE: SWX) and files Form 10-K together with Southwest Gas Corporation, which files as a separate registrant with its own financial statements. The utility is regulated by the ACC, PUCN and CPUC, and its tariffs and rate cases are public filings the company links from swgas.com. BBB shows the Las Vegas file as not accredited and not rated and a separate Oakland file rated F for unanswered complaints, as detailed in the complaint record above.

The company's website says its Customer Solutions number is 877-860-6020, and its FAQ says to call that number to confirm whether a person at your door is a Southwest Gas employee (employees and contractors wear ID badges with a name, picture and company logo). Payments are mailed to P.O. Box 24531, Oakland, CA 94623-1531 according to its contact page. Regulators' records, rather than our archive, are the place to confirm the status of any enforcement or rate matter.

VERIFIED

Company Relationships

  • Owned by: Southwest Gas Holdings, Inc.
EDITORIAL

Frequently Asked Questions

Who is Southwest Gas and where does it operate?

Southwest Gas Corporation is a regulated natural gas distribution utility, a California corporation owned by Southwest Gas Holdings, Inc. (NYSE: SWX). Its June 2026 Form 10-Q says it had approximately 2,293,000 customers on June 30, 2026, in parts of Arizona (1,231,000), Nevada (854,000) and California (208,000); the 2025 Form 10-K gave approximately 2,281,000 on December 31, 2025.

What is the Southwest Gas customer service phone number and when is it open?

The company's contact page lists Customer Solutions at 877-860-6020, Monday to Friday 7 a.m. to 6 p.m. PST (excluding holidays), with 711 for hearing-impaired customers. The same number is the gas leak and emergency line, to be called together with 911.

How do I dispute a Southwest Gas bill I think is too high?

Southwest Gas directs account and billing questions to Customer Solutions (email or 877-860-6020). Ask for the meter-read dates, therms billed and rate schedule, and keep notes of each call. If the company does not resolve it, you can file with your state commission: the PUCN in Nevada, the ACC in Arizona or the CPUC in California.

Why can a Southwest Gas bill go up when my usage did not?

The company says in its Arizona bills FAQ that gas cost rates are adjusted monthly, that it passes gas cost through with no markup, and that the delivery charge changes only through a regulator-approved general rate case. Nevada gas cost rates change quarterly per its Nevada page. These are the company's explanations; they do not resolve a specific meter or billing error.

What payment extensions or plans does Southwest Gas offer?

Per its FAQ, a 5-day payment extension can be requested online, in the app or through the automated line, and other arrangements by calling Customer Solutions. Its assistance pages describe an Installment Plan, an Equal Payment Plan and state-specific assistance programs; the Nevada page states that disconnection for non-payment has resumed.

What should I do if I smell gas?

The company's FAQ says to go to a safe place and call 911 and Southwest Gas at 877-860-6020 immediately, day or night, and not to operate electric switches, thermostats or appliance controls that could cause a spark. It lists a rotten-egg odor, hissing or roaring sounds, and blowing dirt or bubbling standing water as possible signs.

Where can I file a complaint about Southwest Gas if the company does not resolve it?

In Nevada, the PUCN says to contact the utility first and then its Consumer Complaint Resolution Division at (775) 684-6100 (north) or (702) 486-2600 (south), or use its online complaint form. In Arizona, the ACC says to contact the utility first; its Consumer Services staff can then take a complaint through its online Consumer Complaint Form (or by telephone, letter, email or in person), contacts the utility for its perspective, and says current rules allow the utility 5 business days to respond; it lists rates or charges, installations or disconnections, responsibility for a bill and deposits among the matters staff can investigate. In California, the CPUC says that after you have contacted the utility you can file an online complaint with its Consumer Affairs Branch or call 1-800-649-7570 for help disputing a bill.

What was the 2024 Arizona consent agreement about?

ABC15 reported that Southwest Gas agreed with the Arizona Corporation Commission's pipeline safety office to a $2 million civil penalty, not recoverable in rates, plus faster replacement of certain Driscopipe 7000 and 8000 stubs and more frequent leak patrols, after 2021 leaks in Chandler and Scottsdale. The report says the company neither admits nor denies safety violations in the agreement.

What does BBB show for Southwest Gas?

As displayed on October 12, 2026, BBB's file titled 'Southwest Gas' (Oakland, CA) shows rating F, not accredited, with 5 complaints in the last 3 years (3 in the last 12 months) that BBB lists as unanswered; the separate 'Southwest Gas Corporation' Las Vegas file is not rated and shows 0 complaints. They are different BBB files and are not combined.