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Verified Reviews for Gas Leak Repair pros in Grantham, NH
*The Angi rating for Gas Leak Repair companies in Grantham, 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 Grantham, 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 December 13, 2025
Find Gas leak repair technicians in Grantham
Bell Heating Service, LLC
Bell Heating Service, LLC
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

GM Mechanical LLC
GM Mechanical LLC
At GM Mechanical LLC, our top priority is customer satisfaction. We perform top quality work at an affordable rate. We are a family owned and operated buisiness who provide clean and neat work, and treat every home with care and respect. We look forward to working with you!
"They were great - arrived on time and finished the job quickly"
Jeff R on June 2024
At GM Mechanical LLC, our top priority is customer satisfaction. We perform top quality work at an affordable rate. We are a family owned and operated buisiness who provide clean and neat work, and treat every home with care and respect. We look forward to working with you!
"They were great - arrived on time and finished the job quickly"
Jeff R on June 2024

Action Plumbing Heating And Air
Action Plumbing Heating And Air
Action Plumbing, Heating, and Air provides prompt and reliable services to homeowners and businesses. We are fully licensed, bonded, and insured and able to repair or replace any plumbing or heating fixture inside or outside of your home or business. We stand behind our products and services by installing only quality materials and hiring only state licensed plumbers. At Action, we pride ourselves on practicing the highest standards in the business to ensure our customers are provided the best service possible. Take Action against your plumbing or heating problems and call Action! (833) 732-2288
"Zach from action was great, he was very professional, friendly and efficient, and did great work. I would 100% use action again based on my experience with Zach and the quality of work."
Wyatt M on August 2025
Action Plumbing, Heating, and Air provides prompt and reliable services to homeowners and businesses. We are fully licensed, bonded, and insured and able to repair or replace any plumbing or heating fixture inside or outside of your home or business. We stand behind our products and services by installing only quality materials and hiring only state licensed plumbers. At Action, we pride ourselves on practicing the highest standards in the business to ensure our customers are provided the best service possible. Take Action against your plumbing or heating problems and call Action! (833) 732-2288
"Zach from action was great, he was very professional, friendly and efficient, and did great work. I would 100% use action again based on my experience with Zach and the quality of work."
Wyatt M on August 2025
Aqua Tech plumbing and heating
Aqua Tech plumbing and heating
Aqua Tech Plumbing and Heating we offer plumbing and heating services new construction-remodels and repairs
Aqua Tech Plumbing and Heating we offer plumbing and heating services new construction-remodels and repairs
Propane Services of New England
Propane Services of New England
We are a gas service company, mainly focused on propane services such as tank, piping and ductwork installs. We also do residential service work on boilers, furnaces, gas water heaters and much more.
We are a gas service company, mainly focused on propane services such as tank, piping and ductwork installs. We also do residential service work on boilers, furnaces, gas water heaters and much more.

Triumph Heating and Cooling LLC
Triumph Heating and Cooling LLC
Triumph Heating and Cooling LLC is your local trusted service and installation team for anything Heating and Cooling related. We install, Service and Maintain gas/oil heating equipment, air conditioning, water heaters, space heaters, ductless mini splits, and more! Our licensed technicians provide top of the line service to our valued customers, ensuring the job is done right the first time. Call today to schedule your service or install!
"He started great, but went down hill. 5 months to install a new heating system after being told it was 5-6 weeks.I was told he had no idea when he could finish because he started a 92 unit condominium project. On another project they installed an HVAC system with no control board. Lied to continuously about dates. We paid in advance for the work and found out afterward that he fired half the staff (I now know why.) Rather than be upfront about the issues he was facing we told lies. Very frustrating and found Devin to talk like an excon. Say one thing and do another with a very straight face."
John R on July 2023
Triumph Heating and Cooling LLC is your local trusted service and installation team for anything Heating and Cooling related. We install, Service and Maintain gas/oil heating equipment, air conditioning, water heaters, space heaters, ductless mini splits, and more! Our licensed technicians provide top of the line service to our valued customers, ensuring the job is done right the first time. Call today to schedule your service or install!
"He started great, but went down hill. 5 months to install a new heating system after being told it was 5-6 weeks.I was told he had no idea when he could finish because he started a 92 unit condominium project. On another project they installed an HVAC system with no control board. Lied to continuously about dates. We paid in advance for the work and found out afterward that he fired half the staff (I now know why.) Rather than be upfront about the issues he was facing we told lies. Very frustrating and found Devin to talk like an excon. Say one thing and do another with a very straight face."
John R on July 2023

Merrill Mechanical, Inc.
Merrill Mechanical, Inc.
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.
"$21000 new installation new HE Combi Gas boiler Oct 2023. Has never provided reliable heat ir water, no heat upstairs, no hot water for months. Major gas leak. Major water leak. 15-20 service calls. Maybe more. Although they advertise service calls they told us tonight when we have no heat at all 10?out, Answering service after consulting with the manager told us no night time service calls. "
Linda M on December 2025
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.
"$21000 new installation new HE Combi Gas boiler Oct 2023. Has never provided reliable heat ir water, no heat upstairs, no hot water for months. Major gas leak. Major water leak. 15-20 service calls. Maybe more. Although they advertise service calls they told us tonight when we have no heat at all 10?out, Answering service after consulting with the manager told us no night time service calls. "
Linda M on December 2025
emerald Construction
emerald Construction
builder of custom projects for over 30 years
builder of custom projects for over 30 years
Greene's Oil and Propane Inc
Greene's Oil and Propane Inc
Additional address - PO Box185, White River Junction, VT 05001. Additional phone number - (802) 296-4089.
Additional address - PO Box185, White River Junction, VT 05001. Additional phone number - (802) 296-4089.
FAQs for gas leak repair projects in Grantham, NH
Yes, most states require a plumber to be licensed, and for good reason. Hiring an unlicensed plumber could lead to poor quality work, costly future expenses, and potential code violations. Check our state licensing tool to review the local plumber guidelines.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification, which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
Fixing a gas leak costs about $45 to $150 per hour for a plumber or gas line specialist. The job’s overall cost will vary depending on the location of the leak. A leaky junction or connection behind the stove or dryer will likely cost about $120 to $170. But for a leak that requires a gas fitter or plumber to excavate a pipe in the yard, the cost could rise to $1,500 to $5,000. Keep in mind that gas leaks are very serious issues, so don’t hesitate to contact a plumber or gas line specialist immediately.
Fixing a gas leak can take anywhere from one to 24 hours, depending on the location and magnitude of the problem. A gas line specialist or gas plumber should be able to give you an estimated time to completion once they evaluate the situation. If your city’s utility company works to fix a gas leak, it will likely have information available about the anticipated time for gas service to be restored.
The cost of repairing a gas leak depends on the type of leak, its severity, and how difficult it is for the repair technician to reach it. Some of the most common gas line repair costs, on average, include:
Cap a gas line: $75–$150
Gas system inspection: $150
Pressure test: $75–$500
Damaged or corroded pipe: $6–$7 per linear foot
Repair gas leak: $120–$5,000
A local natural gas plumber, gas fitter, or gas line specialist should fix gas leaks. Installing gas lines and connections improperly can lead to dangerous gas leaks and explosions. Only a certified plumber or gas line specialist should run gas lines. This is not a job to try out DIY skills, so hire a professional gas plumber or gas line specialist immediately to find the cause of the leak and fix it quickly.
The Grantham, NH homeowners’ guide to gas leak repairs
From average costs to expert advice, get all the answers you need to get your job done.

Find costs to repair a gas line and plan your budget based on the problem, from excavating for a new line to making a minor repair to an existing one.

Whether it's time for pipe replacement or to hook up the range of your dreams, gas line installation cost is an important line in your budget. Let's take a look.

Capping a gas line for an unused appliance is a quick job but one that needs to be done right. Here’s how it’s done and why you should hire a pro to be safe.

Installing a gas line is a job for a licensed plumbing professional. Let’s take a look at who installs gas lines and how much you can expect to pay.

Gas line connections need special sealants. So can you use Teflon tape on gas lines? Here, we explore the safest way to seal gas fittings.

Choosing the right pipe type for your gas lines can help ensure the safe use of your gas appliances. Find out if you can use galvanized pipe for gas in this guide.
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