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*The Angi rating for Gas Leak Repair companies in Cotulla, TX 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 Cotulla, TX 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 26, 2025

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Avatar for Landmark Home Warranty

Landmark Home Warranty

4.08(
320
)

Landmark Home Warranty

4.08(
320
)
Customers say: True professional
21 years of experience

Landmark Home Warranty is a publicly held company committed to offering the highest level of service for all of your home warranty needs.

"Landmark Uses Disreputable Contractors ? AZA Repair & Brenovations HVAC Are the Worst Landmark sent AZA Repair for my refrigerator, and they left it worse than before?still not working, scorch marks from a blowtorch, copper lines sticking out, tools and oil left behind, and no receipt. Then Landmark sent Brenovations HVAC for an AC motor replacement, and that turned into exposed wires, bolts hitting fan blades, missing parts, and complete disregard for safety near my kids? play area. Both companies were unprofessional, negligent, and refused accountability. Landmark?s use of these contractors makes me seriously question the value of having a home warranty at all."

Michael B on October 2025

Landmark Home Warranty is a publicly held company committed to offering the highest level of service for all of your home warranty needs.

"Landmark Uses Disreputable Contractors ? AZA Repair & Brenovations HVAC Are the Worst Landmark sent AZA Repair for my refrigerator, and they left it worse than before?still not working, scorch marks from a blowtorch, copper lines sticking out, tools and oil left behind, and no receipt. Then Landmark sent Brenovations HVAC for an AC motor replacement, and that turned into exposed wires, bolts hitting fan blades, missing parts, and complete disregard for safety near my kids? play area. Both companies were unprofessional, negligent, and refused accountability. Landmark?s use of these contractors makes me seriously question the value of having a home warranty at all."

Michael B on October 2025

Gas Leak Repair questions, answered by experts

You can and should vent the gas from your hot water heater to the outside of your home. Traditionally, these gases were vented back to other gas appliances, like stoves or furnaces, but many jurisdictions have outlawed this practice due to the risks it provides. 

Most water heaters today use atmospheric venting that exhausts the gas out of the home through a pipe.

The size of a pipe isn’t always the outside or inside diameter. Rather, it’s a nominal diameter that depends on the type of pipe. For male pipes, you’ll need to measure the outside diameter. For female pipes, you’ll need to measure the inside diameter. You’ll then need to use a nominal diameter conversion chart to get the actual pipe size you’d buy in the store.

Yes, it’s possible to convert an oil furnace to gas. However, you may have to replace the furnace completely instead of simply converting it. If the original oil furnace has had any type of damage or is older (typically considered over 15 years old), then you will likely need a full replacement versus a conversion.

Some cities or states may require you to have an earthquake gas shut-off valve. Your insurance provider may also have requirements for installing this valve. Even if you don’t have to have one by law, it’s wise to have a natural gas plumber install one anyway. These devices can be lifesaving and prevent fires or explosions in the event of a gas leak.

The cost to move a gas line is around $500 on average or $20 per linear foot . A pro will carefully disconnect the existing gas line and reroute it to its new path. This may involve excavation if the line is underground or drywall work to repair your walls and ceilings. The project will finish with a pressure test to check for leaks and turning the gas line back on.

The Cotulla, TX 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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