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

Daniel O'Brien
2 days ago
Seamless process. Our 28 year old A/C unit made it as long as she could. Southport came in gave us options and installed a new unit the following day.
Angel Basabe
3 days ago
Great quality work. Very professional and above all very knowledgeable.
James Young
3 days ago
Southport was referred to me by my realtor and they delivered quickly during an AC breakdown of my old furnace. They performed the work with professionalism and did not leave a mess.
Madelon Wise
4 days ago
I tried Southport because I got a coupon in the mail, and the price for a furnace inspection was excellent. Everybody that I spoke to was helpful and prompt. The technician was knowledgable and he explained everything in detail while showing me photos of each aspect of the system. I appreciated the kindness and expertise of the technician, and I will definitely call on Southport again.
Emory Wedel
4 days ago
Furnace checkup was thorough and professional. Recommendations for additional work were clear and well supported. Both guys were knowledgeable and cordial.
Caroline Mohr
5 days ago
Southport’s staff were professional, friendly, knowledgeable, and very supportive! They arrived on time and completed multiple drain reroutes in our basement on schedule. Someone was always available whenever we had questions. I can’t recommend them highly enough, and I look forward to working with them in the future!
Joe Ramsak
5 days ago
4STAR-Great knowledge & outstanding customer interface.
Judy Groth
6 days ago
Andrew was prompt thorough he provided explanations I would highly recommend Andrew and Southport The services were part of the service plan. I really appreciate having everything in one place.
Peggy Henning
6 days ago
Jake was a Rockstar! He tackled the AC problem and wouldn't give up until it was fixed. Excellent service!
Preston Coleman
6 days ago
Southport serviced my furnace a day earlier than scheduled. Phil was courteous and thorough. Southport does a great job, and the price is right. I highly recommend.
Sandra Goldsby
7 days ago
Andrew W. was very efficient, friendly, and even took mercy on our dog, allowing me to let her roam during his visit to lessen the barking. He was very informative in explaining what he looked at/took care of for us today, and kept us at ease concerning the health of our air conditioning unit and system.
Mary Baker
7 days ago
Explained all details clearly
Margaret Payne
1 week ago
Jacob arrived on time. Did a great job looking after our furnace. He even helped me set up my smart thermostat.
Nancy Patin
1 week ago
Wow , my service was amazing. Ryan , Quinn and Oliver were the best. They work so hard and are so respectful. The salesperson Caleb was great. He made everything happen so smoothly. Southport was the way to go. I’m a very happy customer.
Tierney
1 week ago
Amazing service! They were able to get me in right away and have decent pricing! My techs were Nick & Riley, who were professional gentlemen who know what theyre doing. They listened to any issues, and explained in depth what their action plan is, and any other complications could arise. Thank you!
Linda Rusch
2 weeks ago
The work was done by a very knowledge gentleman. He explained everything after the inspection. He was kind and curious.
NANCY SANDEFUR
2 weeks ago
Andrew showed up on time and performed knowledgeable, personable, helpful, respectful service. He is certainly an asset to your team.
Debbie Grube
2 weeks ago
Always professional, very clearly explains the process, and consistently respectful of my home. Much appreciated!

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!