Residential Services

Gas Line Repair & Installation in Madison & Greater Wisconsin

Call Today... Relax Tonight

4.9 Google Rated

Home » Plumbing » Gas Lines

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.

Schedule Service TODAY In Minutes!

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

Southport logo with blue 'SOUTHPORT' wordmark and orange 'PLUMBING • HEATING • COOLING' tagline.

$259

Furnace + Plumbing Inspection Bundle 
Offer cannot be combined with any other promotions, discounts, or special offers. Terms and conditions may apply.
•
Expires: 11/30/2026
Send Us A Message
Name(Required)
Address
FAQ'S

Expert Answers To Your Service Questions

Have Another Question?
Feel free to contact us and we can assist you with your request.

Read About Our Customers’ Recent Experiences

Teresa Kelly
2 days ago
Nate was just outstanding! So fast! So knowledgeable! So polite! We can’t wait to do business again:)
Mike Glatkowski
2 days ago
Alex is a great technician.
Andrea Hyde
3 days ago
Excellent work in installing our furnace! Finished in just three hours, and it’s running wonderfully. Walked us all through our new thermostat and how to install and use the app. Such polite technicians and kept our home tidy in the process. Would recommend Southport to anyone.
Sue N (SueN313)
3 days ago
Luke was on time, thorough, professional, and keeps you up-to-date with what’s being done. We have the maintenance program so we pay a small fee monthly and it covers the heating and ac maintenance yearly. Love this program and it works great in retirement
Jody Davis
4 days ago
Southport rocks it every single time! They hire the most knowlegeable , kind, polite, professional people!!! Another fantastic service visit
Brian Gleichauf
4 days ago
Adam was great, very professional and friendly and provided me with all the information I needed to get an estimate for mini -splits.
Cathy Johnson
4 days ago
Great service Polite and knowledgeable young man. Explanation that could be understood as to what was needed to be done with pricing for different options.
Marilyn Hammes
4 days ago
Thank You Riley and Southport Plumbing for a quick response to a very clogged toilet.
Riley arrived within minutes of the scheduled appointment and completed the work quickly and efficiently. He answered all my curious questions politely and cleaned the area completely after the work.
Lesson learned… don’t dump your cleaning water down the toilet with the sponges and rags you used!!!
Eric Hensley
5 days ago
I had a boiler system installed by Southport and everyone I interacted with was fantastic! After several quotes I selected them because I thought the company had a lot of integrity. I first got a quote from Caleb who was most professional, walking me through all the options they had for me and being very reasonable on the pricing. They scheduled the installation within a week and, on that day, the technicians Ryan and Jacob were excellent and very hard workers. I appreciated that they were very careful inside the house, putting shoe protectors while upstairs and overall being very respectful. They stayed until the job was done and my heat was restored. I would highly recommend Southport if you need a new boiler installation or and work or maintenance on your boiler, home heat, or water heating system.
Dave Frook
6 days ago
Justin did a great job explaining everything to us. He is very knowledgeable.
Mario Maritato
6 days ago
Timely, professional and friendly service.
David Geertsen
6 days ago
Southport did a good job, Justin was professional, thorough, did a great job !!
Darlene Severson
7 days ago
Thank you for sending Andrew Wenk to test our furnace. He could answer our questions clearly and tested all the important components and measured various pressures, temperatures, speeds, and other technical factors. He gave us 3 estimates for replacing parts that are needed due to age of the furnace. Andrew was pleasant and respectful to us.
JULIE GRIMM
1 week ago
Great technician. Grest communication and friendly. Jacob.
chris kwong
1 week ago
Jacob came over to install a new heat pump and do an annual HVAC maintenance check for winter. Appreciate how Jacob was friendly, communicative on progress/steps/etc, and open for questions!
Jackson ellis
1 week ago
Vincent came and assessed my furnace and was very helpful with diagnosing problems with it. Would definitely recommend them for any needs
Jackie Lambert
1 week ago
Fast and friendly. Thanks for getting my heat back on!
Karen Parrillo
1 week ago
Blake was very courteous and efficient in disconnecting our old dryer gas supply. We appreciate the quick response.