Gas line repair costs $150 to $700 on average, running about $400 for a typical damaged-pipe fix, according to Fixr.[3] Angi puts the 2026 national average higher at $598 with most homeowners paying $272 to $937, tying that figure to 9,232 verified projects from Angi Pros; its corporate sibling HomeAdvisor publishes the identical average and range labeled as installation rather than repair, and both versions are reported as published.[1][2]
Safety first: if you smell gas or hear hissing, act before reading further. State emergency guidance is explicit: evacuate the building as rapidly as possible and call 911 once outside. Do not turn any electric lights or appliances on or off, do not open or close windows, and do not try to shut off the gas yourself. If you smell gas outside, call your gas company from outside the building, or 911 if you do not know the company.[4]
Gas line repair cost by source
| Source | Average (per project) | Typical range (per project) | Scope as published |
|---|---|---|---|
| Angi | $598 | $272 – $937 | Gas line repair |
| HomeAdvisor | $598 | $272 – $937 | Gas line installation |
| Fixr | $400 | $150 – $700 | Gas line repair |
Angi and HomeAdvisor are corporate siblings. They publish the identical $598 average and $272 to $937 range, but with conflicting scope labels: Angi labels those figures gas line repair (tying its 2026 national average to 9,232 verified projects from Angi Pros), while HomeAdvisor labels the same figures gas line installation. Both versions are reported as published, and matching figures alone do not establish independent corroboration. Fixr is a separate owner with repair-specific figures: a $400 average, a $150 to $700 range, a $100 low end and a $2,300 high end; these are separately published figures, and the pages state no shared sourcing.
Repair cost by repair type
A straightforward leak fix runs $120 to $250, while pressure tests cost $75 to $150 and capping a line costs $75 to $150.[1]
| Repair type | Cost (Angi, per job) |
|---|---|
| Repair a gas leak | $120 – $5,000 |
| Pressure test | $75 – $500 |
| Cap a gas line | $75 – $150 |
| Gas system inspection | $150 average |
| Damaged or corroded pipe | installation price plus $6 – $7 per linear foot |
Gas line repair cost by repair type. Source: Angi. Angi’s prose narrows two rows: a standard gas pipe leak runs $120 to $250 (the $5,000 high end covers complex cases), and a pressure test runs $75 to $150, rising to $500 only for tests exceeding 24 hours.
Repair cost by problem
Rust removal is one of the cheaper repairs at $100 to $500, while leaks, clogs, high pressure and hissing or rotten-egg smells run $150 to $800.[3]
| Problem | Repair cost (Fixr, per repair) |
|---|---|
| Rust | $100 – $500 |
| Rotten egg smell | $150 – $800 |
| Hissing sound | $150 – $800 |
| Leak | $150 – $800 |
| High pressure | $150 – $800 |
| Clog | $150 – $800 |
Gas line repair cost by problem. Source: Fixr, whose table figures are shown. Fixr’s own prose puts the rotten-egg-smell and hissing-sound repairs at $100 to $700, narrower than its table rows; both versions are reported as published.
Repair cost by pipe material
Plastic pipes are the cheapest to repair at $15 to $20 per linear foot, while black iron runs $25 to $35.[3]
| Pipe material | Repair cost (Fixr, per linear foot) |
|---|---|
| PVC | $15 – $20 |
| HDPE | $15 – $20 |
| Copper | $15 – $25 |
| CSST | $15 – $25 |
| Galvanized steel | $20 – $30 |
| Black iron | $25 – $35 |
Repair cost by pipe material. Source: Fixr. For comparison, Angi puts gas line repair overall at $15 to $25 per linear foot including materials and labor; these are separately published figures, and the pages state no shared sourcing.
Repair cost by solution
| Solution | Cost (Fixr, per repair) |
|---|---|
| Seal | $150 – $600 |
| Solder | $200 – $500 |
| Section replacement | $300 – $800 |
Repair cost by solution. Source: Fixr.
Labor costs
HomeAdvisor puts master plumber rates at $45 to $200 per hour.[2] Angi’s lead says $45 to $150 per hour for a master plumber or gas line specialist, while its labor section says $45 to $200 per hour and notes some licensed plumbers charge a flat $50 to $100 callout fee instead; both versions are reported as published.[1]
Access and restoration costs
Where the leak sits drives the extras. Angi puts drywall replacement at $270 to $760 when a plumber has to open walls, and excavation plus landscaping restoration at $1,500 to $5,000 for buried lines.[1] Fixr puts the excavation add-on for a buried leak at $1,000 to $1,500, and HomeAdvisor puts landscape repairs at $300 to $10,000 with trenching at $5 to $12 per linear foot and concrete patching at $75 to $125 per cubic yard; each figure is reported with its source and stated scope.[2][3] HomeAdvisor adds permit fees of $100 to $300 and a possible $300 to $600 for a new gas meter if the utility does not cover it.[2]
Safety and why this is never DIY
Every cost source treats gas line work as licensed-professional-only: HomeAdvisor says to always hire a licensed natural-gas plumber for installation or repairs.[2] The smell itself is a safety feature – natural gas is nearly odorless methane, and gas distribution companies must add a chemical odor so leaks can be detected.[4] Angi recommends a professional gas system inspection every year, averaging $150.[1] Because no repair on this system is a safe DIY job, this guide carries no shopping link.
Related cost guides
See our guides to gas line installation cost, plumber cost, gas furnace cost, furnace repair cost and water heater repair cost.
Sources
- Angi – Average Gas Line Repair and Installation Costs (updated Sep 4, 2026)
- HomeAdvisor – How Much Does Gas Line Installation Cost? (updated Jun 20, 2026; installation-labeled figures, cited where noted)
- Fixr – Gas Line Repair Cost (updated Aug 29, 2025)
- Mass.gov – What to do if you smell gas (state emergency guidance, cited for the safety instructions)