Gas logs and venting in Plano
This is the one part of chimney work Texas does regulate, and the one part Plano has written its own rule into. It is also where the failure mode stops being fire and becomes carbon monoxide.
The exception to everything else on this site
Gas piping is licensed work in Texas
The rest of this site is about sweeping and masonry, which no state board licenses. Gas is different. Gas piping in Texas is plumbing work and requires a state plumbing license, and the City of Plano's own contractor registration document requires plumbing contractors to hold a current Texas state plumbing license and to carry it while working in the city. That is a real credential you can ask to see, and unlike most of what gets claimed on a chimney job, it either exists or it does not.
So a chimney company that sweeps your flue and inspects the venting may be perfectly competent to do that and still not be the right party to run a new gas line to the firebox. Those are two jobs. Asking which one a technician is licensed for is not rude; it is the single most useful question on this page.
A local amendment
Plano's second shutoff valve rule
Cities adopt the international codes and then amend them, and the amendments are where local practice actually lives. Plano adopted the 2024 International Residential Code by Ordinance No. 2025-6-15, replacing the 2021 edition it had used since 2022, and it amended the fuel gas provisions on shutoff valves with a requirement of its own.
Ordinance No. 2025-6-15, amending section G2420.5.1 “Appliance shutoff valves located in the firebox if a fireplace shall be installed in accordance with the appliance manufacturer's instructions. A secondary shutoff valve must be installed within 3 feet (914 mm) of the firebox if appliance shutoff is located in the firebox.”
The reasoning is straightforward once you picture it. A shutoff valve inside the firebox is a valve you have to reach into a fireplace to operate, which is exactly what you cannot do if the reason you want it off is that something is wrong in there. Plano's amendment says: fine, but there has to be a second one within three feet that you can actually get to.
The same ordinance also deletes the section of the residential code covering factory-built chimney offsets. Local amendments like these are the reason a quote should say which code and which jurisdiction it was priced against.
Three different things
Starters, vented logs and sealed units
- A gas starter is a perforated pipe in a wood-burning firebox, used to light real wood and then turned off. The fireplace is still a wood fireplace and everything on the sweeping and inspection pages applies unchanged.
- Vented gas logs burn with the damper open and vent up the flue. They produce a convincing flame and very little heat into the room, because most of it goes up the chimney. The flue still has to be clear and sound.
- Vent-free logs burn with the flue closed and put their combustion products into the room. They are efficient and they are the reason this page exists—they are also restricted or prohibited in some jurisdictions, and they demand a working carbon monoxide alarm without exception.
- Direct-vent and sealed units take combustion air from outside and vent outside through their own sealed system. They are appliances rather than fireplaces, and they are serviced to the manufacturer's schedule.
The damper clamp
Where a vented gas log set is installed in a masonry fireplace, the damper is normally clamped so it cannot be fully closed. That is deliberate: it guarantees a path for combustion products even if someone shuts the fireplace up out of habit. If your gas logs were installed and the damper still closes fully, raise it.
Gas questions
Questions about gas fireplaces
Does a gas fireplace need the chimney swept?
Not for creosote, because gas makes very little. It does need the flue checked for blockage, nests and deterioration, because a gas appliance venting into a blocked flue is a carbon monoxide problem. The visit is shorter and the point of it is different.
Do I need a carbon monoxide alarm?
Have one regardless of what you burn, and if you have vent-free appliances treat it as mandatory rather than sensible. Put it where the manufacturer says and test it on a schedule you will actually keep.
Can I convert my wood fireplace to gas logs?
Frequently yes, and it involves running gas to the firebox, which is licensed plumbing work in Texas, plus an inspection of the flue since you are changing what the system vents. Under NFPA 211 a fuel change is a system change, which puts it in Level 2 territory.
Who do I call if I smell gas?
Not us and not a chimney company. Leave the house and call your gas utility or 911 from outside. Nothing on this site is an emergency service and nobody should be waiting on a form submission with a gas leak in the room.
Does Plano require a permit for gas work at a fireplace?
The city's permit handout lists plumbing work as requiring a permit, and gas piping is plumbing work in Texas. Adding a gas line to a firebox is therefore a permit conversation, and it is one to have with Building Inspections on 972-941-7140 before the work rather than after. The city's own advice is blunt about contractors who say otherwise.
The pilot keeps going out. Is that dangerous?
It is usually a dirty or failing thermocouple rather than anything alarming, and the safety device is doing its job by shutting the gas off. Have it looked at rather than worked around—the failure to avoid is the one where somebody defeats a safety control to stop it being annoying.
Start with a survey, not a sales visit
Ask about a gas fireplace
Say whether it is a gas starter in a wood-burning firebox, a vented gas log set, or a sealed unit. Those are three different things and they lead to three different visits. If there is a smell of gas, leave the house and call your gas utility first, not us.
Related work we arrange
What gas work usually sits alongside
Chimney inspection and written report
A Level 1, 2 or 3 inspection to the NFPA 211 scheme, and a written report you can hold a quote against.
Chimney sweeping and creosote removal
Brushing the flue back to bare masonry or liner, which on a lightly used Plano fireplace is as much about nests and debris as it is about soot.
Crown, cap and flashing repair
The three parts that keep rain out of a chimney, and the three that fail first on a thirty-year-old North Texas stack.
Flue relining and firebox repair
Cracked clay tiles, spalled firebrick and failed refractory panels: the findings that turn an inspection into a real piece of work.