Residential Services

Gas Line Repair & Installation in Madison & Greater Wisconsin

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Gas lines power essential systems in your home, including your furnace, water heater, stove, and other appliances. When a line is damaged, leaking, or improperly sized, it can affect both performance and safety throughout your entire system.

Southport Plumbing, Heating, and Cooling provides gas line repair and installation in Madison and Greater Wisconsin. We handle everything from new gas line installations to extensions and targeted repairs, with a focus on proper sizing, routing, and pressure control to ensure your system operates reliably.

A technician checking the gas line in a home inspection.

Gas Line Installation and Repair

Gas line work is not just about connecting pipes. It requires understanding how fuel moves through your system and how each appliance draws from it.

We provide gas line work for both new setups and existing systems, with service tied directly to how your home uses gas:

  • Install new gas lines when adding appliances like stoves, water heaters, or furnaces

  • Extend existing lines to support fireplaces, dryers, or outdoor equipment

  • Repair gas leaks when pressure drops or connection issues appear

  • Replace aging or damaged piping that no longer supports reliable operation

  • Upgrade routing and connections to meet current code and improve system performance

What Happens During Gas Line Service

Our first priority is to understand how your system is currently performing and where issues may exist.

Every service begins with evaluating how your gas system is currently performing and how it needs to support your home.

  • Inspect existing gas lines, fittings, and appliance connections

  • Test system pressure to identify leaks or inconsistencies

  • Evaluate pipe sizing and routing based on appliance demand

  • Install or repair piping and secure all connections

  • Perform final pressure testing to confirm the system is sealed and operating correctly

This process ensures the system is not only repaired, but also balanced to deliver consistent gas flow across all connected equipment.

Signs You May Need Gas Line Repair

Gas line problems are not always obvious, but there are clear indicators that something is off.

Gas line issues often show up through system performance changes or environmental signs:

  • Rotten egg odor near appliances or piping

  • Hissing sounds near gas lines

  • Visible corrosion or damage on exposed pipes

  • Dead or discolored vegetation near buried lines

  • Appliances not operating correctly or consistently

What to Do if You Suspect a Gas Leak

If you suspect a gas leak, leave the home immediately and avoid using electrical switches or devices. Contact your gas provider or emergency services, then arrange for professional gas line repair once the situation is safe.

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Why Choose Southport Plumbing, Heating, and Cooling

Our team handles residential gas line systems, focusing on proper installation and long-term performance.

  • Experience working with a wide range of gas appliances and system layouts

  • Code-compliant installation and repair practices

  • Thorough pressure testing and leak detection

  • Clear recommendations based on your system’s needs

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Read About Our Customers’ Recent Experiences

Lisa B.
3 days ago
Blake did a terrific job when we were in a pinch and needed a new sink connected the same day. He’s helpful, friendly, communicative, and did great work.
Gail Seianas
6 days ago
Everything is absolutely beautiful! We are so pleased. Everything was explained and pretty much spelled out before they did things. Thank you so much!
David E Pike
6 days ago
Needed to replace a toilet and water heater quickly. Two men arrived the next day, assessed the situation and completed the work by late afternoon. Their workmanship was very professional and the job was very neat and clean. I would call them again if needed.
Janice Sleeth
1 week ago
Very personable and very courteous . And very informative.
Ron Vance
1 week ago
Everything went fast and timely. Your man was polite and thorough with his job. We we6satified with the job he did.
Heidi R
1 week ago
Phil was very knowledgable. I am new to a boiler system and explained in great detail and answered all my questions.
Amber C
1 week ago
We have been using Southport for years! They always do a great job and the guys are knowledgeable and professional. I highly recommend them!
Dave Cummings
1 week ago
Great service!! Tyler was very informative!!
Kevin Kazmierski
1 week ago
Buck very knowledgeable and friendly.
Jeremy Conn
1 week ago
Had a full AC, Furnace, and Hot Water Heater installed in one day. All the work was done perfectly and in a timely manner. All the installers were helpful, friendly, and hardworking.
Donna Heusdens
1 week ago
Had a surge protector installed on furnace for my AC. Very professional was done in a short time.
Susan Bessette
1 week ago
Excellent service. The technician, Travis, was very knowledgeable and efficient. He did a beautiful job!
Dave Cummings
1 week ago
Great service!! Tyler was very informative!!
Todd Nelson
1 week ago
The young man that checked out our HVAC system was very thorough, knowledgeable and polite. He did an excellent job!
cy gu
2 weeks ago
Great experience! Blake did an excellent job repairing a leaking water pipe in our basement. He was professional, efficient, and got the repair done quickly. Everything is working properly now and the water supply is back to normal. I really appreciate his help and would definitely recommend him.
Sherry S
2 weeks ago
Had a concrete tub taken out and a new single tub put in. Some plumbing and new faucet that I can actually turn now.... yay!! A great job done, thanks to Travis H.
Joshua Wilson
2 weeks ago
It was nice seeing Logan again. He worked on my previous AC and Furnace for me when he was with his previous employer. Done a spectacular job with the hvac tune-up.
Cheryl Sarasin
2 weeks ago
Highly recommend. Always has the customer’s best interests in mind. Always on time and friendly.

Schedule Service For Your Home Or Business Today!

Are you looking for great HVAC and plumbing services? Our Southport team serves you with quality plumbing, heating and cooling services in Madison and the surrounding areas. Contact us today!