Should a plumber be licensed and certified to install gas lines?

• <div><p>Yes, most states require a plumber to be licensed, and for good reason. Hiring an unlicensed plumber could lead to poor quality work, costly future expenses, and potential code violations. Check our <a href="https://www.angi.com/angi-license-check.htm">state licensing tool</a> to review the local plumber guidelines.</p><p>As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification, which include:</p><ul><li><p>The owner, principal, or relevant manager passed a criminal background check</p></li><li><p>Required to have applicable state and local licenses</p></li><li><p>Maintain an average star rating of 3.0 or better on our network, if they have at least one review</p></li><li><p>Paying to advertise their services</p></li><li><p>Meeting any other eligibility criteria required by Angi</p></li></ul><p>Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.</p></div>

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Q: Why does pipe size matter?

• <div><p>Having the right size pipe ensures proper drainage and helps protect against clogs and other plumbing problems. A pipe that's too small will take longer to drain, which can result in backups. And solids can build up in pipes that are too large. Choosing a pipe with the appropriate volume also means it will be able to handle water pressure, which is the force behind the water. </p></div>

Q: Are the materials used for piping a mobile home the same as in a standard build?

• <div><p>Sometimes. While many traditional homes use copper, galvanized steel, PVC, acrylonitrile butadiene styrene (ABS), and PEX, mobile homes will typically use PVC, CPVC, or PEX. These materials are more flexible, easier to work with, and handle colder temperatures.</p></div>

Q: Is pipefitting considered plumbing?

• <div><p>Even though their jobs sound similar&mdash;both professions work on pipes&mdash;a plumber and pipefitter actually have very different jobs, and pipefitting isn&rsquo;t considered plumbing. Pipefitting is done in commercial and industrial buildings and factories, and the pipes carry gas, chemicals, acid, and other potentially hazardous substances. Pipefitters often work in intense conditions while plumbers may work in lower-pressure environments.</p></div>

Q: How can professionals help in upgrading existing gas systems?

• <div><p>Professionals can recommend efficient layouts or appliances and ensuring regulatory compliance.</p></div>

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Verified Reviews for Gas Leak Repair pros in Washington, IA

*The Angi rating for Gas Leak Repair companies in Washington, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Gas Leak Repair needs.

*The HomeAdvisor rating for Gas Leak Repair companies in Washington, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Gas Leak Repair needs.

Last update on November 15, 2025

Reviewed in November 2016
They did an excellent job. Had to have a couple things repaired that was caught in the home inspection. The job was quick. The cost could always be cheaper but I was only charged a service call.
Mr. Electric of Omaha
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Reviewed in August 2015
When I was ready to buy a car I told the salesman I decided not to buy a Flex. He showed me the Explorer and everything about it. When we picked the car up, he was sure that my wife was there so she could see how everything worked. He set my Bluetooth Sirius Music. Filled the car with gas. We've...
Stivers Ford Lincoln
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Reviewed in April 2014
What really sold me on this shop was the courtesy I was given by the employee's. I did not talk to the repair man until the next day. What blew me away that they did not charge for the service. I will take the machine back if I have any problems. I will also delight in shopping at this store.
Quilt Connection
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Reviewed in April 2014
He asked what model sewing machine I have, it is a Husqvarna, and he gave me the name of a store that does repair them. The name of that store is Quilting Connection. I will give you a report on them after I get my machine in and repaired. He could have had me bring my machine in and try to...
DAN'S REPAIR & MACHINE
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Reviewed in October 2013
Scott is all business and runs a great shop. I would recommend this place any day or anytime! They are fantastic people! Travis, Scott's son is also great! He takes care of the oil changes and does a great job as well! Chris Faulk is also great for handling the billing! Chuck, whom does...
2nd Street Repair
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Reviewed in October 2013
Provider did a walk-through of the house, set up his equipment for testing for air leaks, and performed the test. He answered all questions, and provided a list of recommendations, some small work to be done (that we could do ourselves), and some more major suggestions to make the home better...
ecoInsulate Northwest
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Reviewed in July 2013
I had gone without water for two weeks, because the plumbers' businesses in my county did not come when they promised, nor would they return calls, nor say why they didn't want the job, nor give any other professional response. But Mike came within hours of my call, from the next county over. ...
Mike's Plumbing and Pump Service
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Reviewed in March 2013
The water faucet leaked water because the seal did not fit the openings in our sink correctly. They came back and sealed it with calk. I could have easily done that myself. I paid for and expected a professional installation job. What I got was a sloppy quick fix. I have now replace the...
MASKER PLUMBING & HEATING
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Reviewed in April 2012
The whole process, from the temporary repair to the complete installation, was quick and professional.
Dan's Overhead Doors & More
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Gas Leak Repair questions, answered by experts

Having the right size pipe ensures proper drainage and helps protect against clogs and other plumbing problems. A pipe that's too small will take longer to drain, which can result in backups. And solids can build up in pipes that are too large. Choosing a pipe with the appropriate volume also means it will be able to handle water pressure, which is the force behind the water.

Sometimes. While many traditional homes use copper, galvanized steel, PVC, acrylonitrile butadiene styrene (ABS), and PEX, mobile homes will typically use PVC, CPVC, or PEX. These materials are more flexible, easier to work with, and handle colder temperatures.

Even though their jobs sound similar—both professions work on pipes—a plumber and pipefitter actually have very different jobs, and pipefitting isn’t considered plumbing. Pipefitting is done in commercial and industrial buildings and factories, and the pipes carry gas, chemicals, acid, and other potentially hazardous substances. Pipefitters often work in intense conditions while plumbers may work in lower-pressure environments.

Professionals can recommend efficient layouts or appliances and ensuring regulatory compliance.

Yes, most states require a plumber to be licensed, and for good reason. Hiring an unlicensed plumber could lead to poor quality work, costly future expenses, and potential code violations. Check our state licensing tool to review the local plumber guidelines.

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification, which include:

The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

The Washington, IA homeowners’ guide to gas leak repairs

From average costs to expert advice, get all the answers you need to get your job done.

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