Gas line services size and route natural gas or propane piping that delivers correct BTU flow to appliances, locate and seal leak points before carbon monoxide or explosion risk develops, and pressure-test every connection before the system goes live. Bonded Plumbworks’ state-licensed gas plumbers run TracPipe CounterStrike CSST or Schedule 40 black iron pipe, verify joints with TIF 8800A combustible gas detectors and UEi EM201 manometers, and follow the International Fuel Gas Code (IFGC) and NFPA 54 on every project.
What Is Gas Line Service
Gas line service encompasses the installation, repair, testing, and modification of piping systems that deliver natural gas or liquefied petroleum gas (propane) from the utility meter or propane tank to gas-burning appliances within a residential property. Gas piping materials include black iron pipe, corrugated stainless steel tubing (CSST), and in some jurisdictions, copper and polyethylene for underground runs.
Professional gas line service requires knowledge of pipe sizing calculations based on BTU demand, pressure drop over distance, and the specific gravity of the fuel gas. The Plumbing-Heating-Cooling Contractors Association (PHCC) and the American Gas Association (AGA) publish installation standards that protect homeowners from gas leaks, carbon monoxide poisoning, and fire hazards. The state fire marshal’s office enforces compliance through permit inspections on all new gas line installations and modifications.
Gas Appliance BTU Input for Gas Line Sizing
| Gas Appliance | BTU/hr Input (Approximate) |
|---|---|
| Warm air furnace, single family | 100,000 |
| Warm air furnace, multifamily (per unit) | 60,000 |
| Hydronic boiler, single family | 100,000 |
| Hydronic boiler, multifamily (per unit) | 60,000 |
| Combined space and [water heating](/glossary/water-heating/) boiler, single family | 120,000 |
| Combined space and water heating boiler, multifamily (per unit) | 75,000 |
| Water heater, storage (30–40 gallon tank) | 35,000 |
| Water heater, storage (50 gallon tank) | 50,000 |
| Water heater, instantaneous (2 GPM capacity) | 142,800 |
| Water heater, instantaneous (4 GPM capacity) | 285,000 |
| Water heater, instantaneous (6 GPM capacity) | 428,400 |
| Water heater, domestic circulating or side-arm | 35,000 |
| Range, freestanding, domestic | 65,000 |
| Built-in oven or broiler unit, domestic | 25,000 |
| Built-in cooktop unit, domestic | 40,000 |
| Clothes dryer, Type 1 (domestic) | 35,000 |
| Gas fireplace, direct-vent | 40,000 |
| Gas log | 80,000 |
| Barbecue (outdoor grill) | 40,000 |
| Gas light | 2,500 |
| Refrigerator | 3,000 |
| Source: UPC 2024 Table 1208.3.1 / NFPA 54 Table A.5.3.2.1 — Gas Appliance BTU Input | |
Signs You Need Gas Line Service
- Rotten egg or sulfur smell (mercaptan odorant) near gas appliances or piping
- Hissing or whistling sound near gas lines or fittings, indicating a pressurized leak
- Dead or dying vegetation above a buried gas line, suggesting an underground leak
- Yellow or orange burner flames instead of the normal blue flame on gas appliances
- Pilot light that repeatedly goes out on water heaters, furnaces, or fireplaces
- Black soot buildup on gas appliance surfaces, indicating incomplete combustion
- Carbon monoxide detector alarm activation in the home
- Higher-than-expected gas bills without increased usage
- New gas appliance (range, dryer, water heater, grill, fireplace) requiring a gas line extension
- Home renovation that requires gas line rerouting to accommodate structural changes
Our Gas Line Process
Safety Assessment and Leak Testing
Every gas line service call begins with a safety assessment. Our technicians use combustible gas detectors (TIF and Bacharach models) to test all accessible fittings, valves, and connections for leaks. We check gas pressure at the meter and at appliance connections using a manometer. If a leak is detected, we immediately isolate the affected section and ventilate the area before proceeding with repair. Gas line inspection gives you a live view of the problem before any work starts. You review the findings and approve the quote before any repair begins.
Pressure Testing and System Evaluation
For new installations and modifications, we perform a pressure test on the entire gas piping system. The State building codes require a test at 3 PSI (for low-pressure systems) held for a minimum of 10 minutes with no pressure drop. We use a calibrated pressure gauge and document the test results. For existing systems, we evaluate pipe sizing to confirm the system can deliver adequate gas volume (measured in cubic feet per hour) to all connected appliances at their rated BTU input.
Installation or Repair
New gas line installations include pipe sizing calculations, material selection, routing, and connection to the gas meter or manifold and the appliance. We use Schedule 40 black iron pipe with threaded fittings sealed with yellow Teflon tape and pipe joint compound rated for gas service. CSST (corrugated stainless steel tubing) such as TracPipe CounterStrike or Gastite FlashShield is used where flexible routing is needed, always with proper bonding per NFPA 54 and the National Electrical Code to protect against lightning-induced electrical surges. All connections are tested with a combustible gas leak detector and soap solution.
Gas Pipe Sizing for Gas Line Installation — Schedule 40 Metallic Pipe
| Pipe Length (ft) | ½" Pipe (CFH) | ¾" Pipe (CFH) | 1" Pipe (CFH) | 1¼" Pipe (CFH) |
|---|---|---|---|---|
| 10 | 172 | 360 | 678 | 1,390 |
| 20 | 118 | 247 | 466 | 957 |
| 30 | 95 | 199 | 374 | 768 |
| 40 | 81 | 170 | 320 | 657 |
| 50 | 72 | 151 | 284 | 583 |
| 75 | — | 126 | 237 | 486 |
| 100 | 50 | 104 | 195 | 400 |
| 150 | 40 | 83 | 157 | 322 |
| 200 | 34 | 71 | 134 | 275 |
| Source: UPC 2024 Table 1215.2(1) / NFPA 54 Table 6.2.1(b) — Gas Pipe Sizing, Schedule 40 Metallic Pipe | ||||
| CFH = cubic feet per hour. To convert BTU to CFH for natural gas: divide BTU/hr by 1,000. Conditions: Natural gas, inlet pressure less than 2 psi, 0.60 specific gravity. | ||||
Permit Inspection and Commissioning
All new gas line installations and major modifications require a permit and inspection by the local building department or the state fire marshal’s office. Bonded Plumbworks handles the permit application, schedules the inspection, and ensures the installation passes on the first visit. After inspection approval, we turn on gas to the new line, purge air from the system, light pilot lights, and verify proper appliance operation — checking ignition, flame characteristics, and combustion venting.
Equipment and Materials
Our gas line technicians use professional-grade equipment and approved materials. Piping materials include Schedule 40 black iron pipe (ASTM A53), TracPipe CounterStrike CSST, and Gastite FlashShield CSST — all rated for natural gas and propane service. Detection equipment includes TIF 8800A and Bacharach Leakator combustible gas detectors, UEi EM201 manometers, and digital pressure gauges. Fitting materials include malleable iron fittings, yellow Teflon tape (gas-rated), Rectorseal pipe joint compound, and gas-rated ball valves from Watts and Apollo. All materials are approved by the applicable state building codes and listed by CSA International for fuel gas service.
Why Choose Bonded Plumbworks for Gas Line
Bonded Plumbworks has been performing gas line work since 2006. Our plumbers hold active state plumbing licenses that authorize gas piping installation and repair, and they maintain current training on CSST bonding requirements and fuel gas code updates. We are members of the Plumbing-Heating-Cooling Contractors Association (PHCC) and hold an A+ rating with the Better Business Bureau (BBB). Every gas line project includes a pressure test, leak testing at every connection, permit coordination, and documentation for your records.
Gas Line Pricing
Gas line services range from $200 for a leak repair at an accessible fitting to $2,500 or more for a full gas line installation from the meter to an outdoor kitchen. Common price ranges include:
- Gas leak detection and repair: $200 – $600
- Gas appliance hookup (range, dryer): $200 – $500
- Gas line extension (short run): $500 – $800
- New gas line installation (long run): $1,500 – $2,500
- Gas line pressure testing: $150 – $300
Every gas line estimate is based on an on-site safety assessment, so you know the exact scope and cost before work begins. Call Bonded Plumbworks at (855) 557-9600 for a written quote.
Frequently Asked Questions
How much does gas line installation cost near me?
Gas line installation typically costs between $500 and $2,500 depending on the pipe length, number of connections, and accessibility. A short run from an existing manifold to a new gas range might cost $500 to $800. Running a new line from the meter to an outdoor kitchen or pool heater — which may involve trenching and longer pipe runs — typically costs $1,500 to $2,500 or more. We provide a detailed written estimate after assessing the route and BTU requirements.
Is a gas leak dangerous?
Yes. Natural gas and propane are combustible, and a gas leak creates a risk of fire and explosion. Natural gas also displaces oxygen in enclosed spaces. If you smell gas (the rotten egg mercaptan odor) or hear hissing near gas lines, leave the area immediately, do not operate electrical switches or create sparks, and call your gas utility’s emergency line or 911 from outside the home. After the utility confirms the area is safe, call us to locate and repair the leak.
Do I need a permit for gas line work?
Yes. The State building codes require a permit for all new gas line installations, extensions, and significant modifications. The permit triggers an inspection that verifies proper pipe sizing, material, pressure testing, and appliance connection. Bonded Plumbworks handles all permit applications and inspection coordination as part of our standard service.
Can you convert my appliances from propane to natural gas?
Yes. Propane-to-natural-gas conversion (and vice versa) requires changing the orifices and adjusting the regulator pressure at each appliance. The gas piping itself may also need resizing because natural gas and propane have different BTU densities and require different pipe diameter calculations for the same appliance load. We handle the full conversion including pipe verification, orifice replacement, and appliance testing.
Does gas line work come with a guarantee?
Gas line installations from Bonded Plumbworks include a written warranty on all parts and labor. Every gas connection is pressure-tested and leak-checked with a combustible gas detector before the job is complete. If any gas line component we installed fails within the warranty period, we return and correct it at no additional cost.
Schedule Today
Call Bonded Plumbworks at (855) 557-9600 to schedule gas line service. Whether you need a leak repaired, a new appliance connected, or a complete gas line installation, our licensed plumbers provide the expertise and code compliance that gas work demands. Every gas line service includes a 90-day guarantee on gas line work, covering parts and labor.
Bonded Plumbworks’ gas line services are available across Florida — see all service locations.