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*The Angi rating for Gas Leak Repair companies in Haverhill, NH 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 Haverhill, NH 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 28, 2025

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Avatar for Merrill Mechanical, Inc.

Merrill Mechanical, Inc.

4.94(
17
)

Merrill Mechanical, Inc.

4.94(
17
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Merrill Mechanical, Inc. is mechanical company specializing in plumbing, heating and HVAC installation. We primarily perform new-construction and renovation services in the small-medium commercial space as well as larger, high end, homes. Our talented team works hard everyday to provide the best services for our clients. We customize our offerings based on specific needs, so get in touch today to receive an initial quote. Our rates are $85/hour with a minimum of 2 hours, plus one-way travel time.

"Very prompt and very professional,able to answer all my questions and make some good recommendations to solve my problem (s) Could not ask for better service,Thank you!"

Eric R on April 2021

Merrill Mechanical, Inc. is mechanical company specializing in plumbing, heating and HVAC installation. We primarily perform new-construction and renovation services in the small-medium commercial space as well as larger, high end, homes. Our talented team works hard everyday to provide the best services for our clients. We customize our offerings based on specific needs, so get in touch today to receive an initial quote. Our rates are $85/hour with a minimum of 2 hours, plus one-way travel time.

"Very prompt and very professional,able to answer all my questions and make some good recommendations to solve my problem (s) Could not ask for better service,Thank you!"

Eric R on April 2021

Gas Leak Repair questions, answered by experts

To ensure a steady propane supply, schedule regular deliveries with your provider, monitor usage, and consider keeping a backup supply for emergencies.

Any gas pipe can leak, especially if it’s old or isn’t properly maintained. However, even with a shovel, plastic pipes are more easily damaged by impact. That’s why it’s so important to have gas lines marked by the utility company before you begin digging for any reason. Some metal pipes, like black pipes, galvanized steel, and copper, aren’t as easily damaged by impact but can degrade over the years, leading to leaks.

It can cost anywhere from $200 to $5,000 to repair a gas line. The cost may vary depending on where the problem is located. For example, if there’s a small gas leak somewhere that’s easy to access, the cost could be on the lower side. On the other hand, repairing buried lines and lines in other hard-to-reach areas will be more expensive.

Because of the potential danger associated with incorrectly capping the gas line that serves the gas fireplace, many people will choose to hire a professional to do the work. Some homeowners may choose to hire a pro to only handle the gas line for them. They then may attempt to remove the actual insert on their own, which is a challenging—but not impossible—DIY project.

Installing a gas line is no simple task. From start to finish, you’re looking at anywhere from six to 12 weeks to acquire the correct permits, dig a trench, and connect your appliances. Naturally, the longer the gas line, the longer it will take to complete. If your plumber needs to hire additional contractors to dig trenches and navigate around or remove obstacles, this could put you at the longer end of the timeframe. 

Once the land is prepped and licenses acquired, installing the actual line may only take a few days to a few weeks, weather permitting.

The Haverhill, NH 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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