What does a new natural gas line involve?
Best HVAC Toronto is a family-owned HVAC and gas contractor serving Toronto and the GTA, with certified gas technicians who hold TSSA G1/G2 licences and bring 20+ years of combined Ontario experience. We run natural gas lines for furnaces, water heaters, standby generators, outdoor kitchens, BBQ hookups, fire pits and fire tables, pool heaters, gas fireplaces, ranges, and dryers, in detached homes, semis, and townhouses from North York and Etobicoke to Vaughan and Mississauga. Every job is priced by run length and appliance load rather than hourly, and every job includes the permit and a TSSA pressure test.
The part homeowners rarely expect is the load calculation. Gas piping is sized for total simultaneous BTU demand at a given water column pressure, and every appliance you add draws from the same supply. A house running a furnace, a water heater, and a gas range may be comfortably supplied, but add a pool heater and a fire table and the same pipe can no longer deliver enough volume on a cold night when the furnace is calling. The symptom is a furnace that struggles or locks out at the worst possible moment, and it is entirely preventable by sizing the system properly at the start.
Doing this properly matters beyond performance: unpermitted piping, missing sediment traps, and absent shut-off valves are among the most common findings behind an Enbridge red tag. If you smell gas or an existing line is already leaking, our 24/7 gas emergency service covers gas leak detection and repairs, with a typical emergency response within two hours. For new work, Best HVAC Toronto’s gas technicians use Schedule 40 black iron pipe for exposed and structural runs and CSST where flexible routing through finished space is the better answer, both installed with correct supports, bonding, and protection. Every appliance gets a dedicated shut-off ball valve and a sediment trap, and every exterior BBQ connection gets a proper quick-disconnect box so the grill can be removed for winter.
What is included in every gas line job
Site assessment and BTU load calculation, a fixed written quote, permit where required, pipe sizing to CSA B149.1, correctly supported and protected routing, dedicated shut-off valves, sediment traps at appliance connections, a TSSA pressure test with the line tagged, electronic leak detection at every joint, appliance connection and commissioning, documentation for your records, and a 2-year labour warranty on the installation.
BBQs, fire pits, generators, and other appliances we connect
BBQ and outdoor kitchen hookups
The most popular request we get from spring onward. A permanent gas connection means no more propane tank swaps. We fit an exterior quick-disconnect so the grill can be detached and stored, plus an accessible shut-off valve. Full outdoor kitchens with a grill, side burner, and fire feature need a manifold and a larger supply, which we size for the combined load. We regularly connect built-in grills and gas fire pits on backyard patios and decks across Etobicoke, Oakville, and Markham. For outdoor cooking safety, the shut-off stays within easy reach of the grill and the exterior section of the line is supported and protected from mechanical damage.
Gas fireplaces
Common in Richmond Hill, Vaughan, and Kleinburg custom homes, often two or three per house. Each one adds to your total load, and each one has venting that needs annual inspection. As an authorized Napoleon dealer, we handle both the supply line and the appliance connection for fireplaces and inserts.
Standby generators
A whole-home generator draws a substantial volume when it runs. We calculate the load, upsize the supply where needed, install and test the line, and coordinate commissioning with your electrician so you are not managing two trades yourself.
Ranges, dryers, and appliance conversions
Converting a kitchen to gas needs a correctly sized run, a shut-off, and a sediment trap. Straightforward work when the supply can carry it, which we verify first.
Pool heaters and fire tables
Pool heaters are among the largest residential gas loads we connect, often 150,000 to 400,000 BTU/hr, which can match or exceed the furnace itself. That is why every pool heater hookup starts with a whole-house load review, and frequently a larger supply run back to the meter. Gas fire pits and fire tables draw less but run for hours at a time on summer evenings. Both need an accessible exterior shut-off so they can be isolated for winter.
What affects gas line installation cost in Toronto?
Run length is the first factor and the most obvious. Second is routing: a run through an open basement is far quicker than one that must be concealed through finished ceilings or exterior walls. Third is pipe size, driven by the BTU load calculation, since a larger appliance or a longer run needs larger diameter pipe and larger fittings.
Fourth is the number of appliances. A manifold serving a grill, a side burner, and a fire feature costs more than a single connection. Fifth is whether the existing supply is adequate. If your meter or main supply piping cannot carry the added demand, an upsize is required, and occasionally a meter change through Enbridge. We identify this during the site visit and tell you before quoting rather than discovering it halfway through the job.
Permits, TSSA, and the Ontario gas code
Every gas line installation in Ontario requires a TSSA-registered contractor and a permit filed before work begins. The workflow is standard across the province: initial site assessment to confirm the appliance BTU load, existing gas supply size, and run length; sizing calculation to determine the correct pipe diameter (usually Schedule 40 black iron or corrugated stainless steel tubing, CSST, depending on the run); permit application filed with TSSA with the drawing and load calculation; installation to CSA B149.1 with proper support, sediment traps, and shutoff valves at each appliance; pressure test at 1.5 times operating pressure held for a minimum period to detect leaks; and inspection sign-off by the contractor and a filed record with TSSA.
Homeowners cannot legally install gas piping themselves in Ontario. The TSSA G2 certification is required to handle up to 400,000 BTU/hr per appliance; G1 is required above that or for commercial work. Every Best HVAC Toronto technician holds current G1 or G2 certification and works under WSIB coverage and $2 million general liability insurance. Permits typically add $150-$250 to the installation cost and add 2-5 business days for the paperwork, though we handle everything so you never see the paperwork. Failing to pull a permit and get inspection sign-off creates significant liability at resale (title searches surface unpermitted work) and invalidates your homeowner insurance for anything gas-related. Every job we do is permitted, tested, and documented.
Adding a gas line for a BBQ, stove, or fireplace
BBQ, stove, and fireplace gas line additions are the most common residential gas line calls. The scope is similar across all three: run a properly-sized branch from the existing gas main to the appliance location, install a shutoff valve within easy reach of the appliance, terminate with an appropriate connector (rigid pipe for indoor fixed appliances, flexible connector with quick-disconnect for outdoor BBQs), pressure test, and file the permit.
BBQ hookups typically run 20-60 feet from the meter or basement main to an outdoor patio location. Common considerations: run through unheated space needs to be properly supported and, for CSST, protected from mechanical damage; quick-disconnect valve at the BBQ location so the grill can be moved for cleaning or winter storage; and BTU sizing (typical BBQ is 50,000-80,000 BTU/hr; outdoor kitchens with side burners and rotisseries can hit 200,000+ BTU/hr and may need larger piping). Gas stove hookups are usually short runs but require careful termination since the stove connection is fixed. Fireplace hookups need particular attention to venting and combustion air requirements, and gas fireplaces themselves need separate CSA B149.1 compliance beyond the gas line itself. Typical pricing runs $400-$1,200 for a BBQ hookup, $500-$1,500 for a stove, and $800-$2,000 for a fireplace including the appliance connection.
Pricing by run length across the GTA
Gas line pricing scales with run length, pipe diameter, appliance count, and access difficulty. At 2026 rates, short runs (under 20 feet from meter to appliance, no ceiling or wall penetration required) typically land $400-$800 including permit and pressure test. Medium runs (20-50 feet with one or two wall/ceiling penetrations) run $600-$1,500. Long runs (50-100 feet, especially through finished spaces requiring access panels) run $1,200-$2,500. Beyond 100 feet or with substantial finishing work required, the quote is site-specific.
Pipe material affects cost. Schedule 40 black iron is the traditional choice, most durable, and most common for main runs. CSST (corrugated stainless steel tubing) costs slightly more per foot but installs faster with less labour and is preferred for runs through finished space because it bends around obstacles. Copper is used in some installations but requires special fittings and is less common. Appliance count matters: adding a fourth or fifth appliance to a single manifold usually triggers a supply upsize back to the meter, which adds $500-$1,500. Meter upsize through Enbridge, if the existing meter cannot handle added load, adds another $300-$800 and 2-3 weeks for Enbridge scheduling. Every site is assessed individually and the specific number for your job is confirmed in writing before mobilisation.
