Why gas lines need upgrading
The gas piping in a house was sized for what the house had on the day it was built: usually a furnace, a tank water heater, a range and perhaps a dryer. Every pipe can only carry so much gas. Add a large new appliance and the old pipe may not keep up, most of all when several things run together.
When an upgrade is needed
- Going tankless. A tankless water heater can need several times the gas of the tank it replaces. This is the most common reason for an upgrade.
- A bigger range. A professional-style range uses far more gas than a standard one.
- Outdoor living. A grill, a fire pit and a patio heater together are a large new load. See outdoor gas lines.
- A pool or spa heater. Among the biggest gas users a home can have.
- An addition or ADU. A second kitchen, water heater and furnace on the same system.
- Switching from electric to gas for a range or dryer.
Signs the line is too small now
A tankless heater that throws an error or goes cool when the furnace kicks on. Burners that drop when another appliance starts. An appliance that never reaches full output. These point to a gas supply that cannot feed everything at once.
How we size it
We add up the gas demand of every appliance, measure the pipe runs and check each section against what it has to carry. That shows which parts of the system are big enough and which are not. Often only one trunk or one branch needs to change, not the whole house.
If the meter itself is too small for the new total, that part belongs to PG&E. We tell you what to ask them for.
What the work involves
We replace the undersized sections with larger pipe, or run a new dedicated line from near the meter to the new appliance. Each appliance gets a shutoff. The system is tested to prove it holds, and when the job needs a permit and inspection, we pull the permit. You get the full cost before we start.
Best done with the install
If we are fitting your tankless water heater, we check the gas line as part of the job and price any upgrade with it, so there are no surprises on the day. If someone else is supplying the appliance, call us before it arrives.
About Friendly Services
We are based in Hayward and serve the East Bay. Friendly Services holds California contractor license CSLB #1156315, class C-36 plumbing, which covers gas piping. $1M general liability cover and workers' comp. Family-owned, over 20 years in business, 100+ five-star reviews online. Five-year workmanship warranty on our own work.