How do you know the person you’re about to pay for a gas water heater install is actually qualified to touch a gas line? Most homeowners can’t answer that until something goes wrong. Gas work carries a different level of risk than swapping a faucet, and the hiring decisions people make early on tend to show up as problems months later. Here are the errors that trip up otherwise careful homeowners.
Choosing a contractor without checking for a gas license
Anyone can call themselves a handyman, and plenty will happily connect a gas appliance for a flat fee. The trouble is that gas connections, venting, and combustion air requirements are governed by code for a reason, and the person doing the work should hold a license that covers gas fitting in your area. Ask for the license number directly and verify it rather than taking a business card at face value. If someone hesitates or waves off the question, that hesitation is your answer.
Skipping proof of insurance and bonding
A verbal “don’t worry, I’m covered” is not coverage. If an uninsured worker damages your home or is injured on your property, the financial exposure can land squarely on you. Request a certificate of insurance and confirm the bonding before any work begins. Reputable outfits that handle Plumbing around Waco expect this question and produce the paperwork without fuss. Treat reluctance the same way you would a missing license: as a reason to keep looking.
Accepting a quote that leaves out the permit
A gas water heater installation almost always requires a permit and an inspection. When a quote conveniently omits the permit, the price looks lower, but you’ve just inherited a liability. Unpermitted gas work can complicate a future home sale, void insurance claims, and leave code violations undiscovered. Make sure the estimate spells out who pulls the permit and who schedules the inspection. If the answer is “we skip that part,” you’re paying for a shortcut you’ll regret.
Assuming the cheapest bid saves you money
A rock-bottom number usually means something was removed from the scope. Maybe it’s the permit, maybe it’s a proper expansion tank, maybe it’s bringing the venting up to current code. The lowest bidder often counts on add-ons once the job is underway, and the final total creeps past the careful quote you turned down. Compare what each estimate actually includes line by line. The install that costs a little more up front but covers everything is frequently the one that costs less over the life of the unit.
Failing to ask who actually does the work on install day
The licensed professional you spoke with on the phone is not always the one who shows up with the wrench. Larger companies sometimes send subcontractors or junior crews, which is fine as long as you know it and the person on site is qualified for gas work. Ask plainly who will be in your home, what their credentials are, and whether a licensed professional signs off on the finished job. Knowing this in advance avoids an uncomfortable surprise at the door.
The quiet mistake of ignoring reviews that mention plumbing follow-ups and callbacks
Star ratings are easy to skim and easy to misread. The useful details hide in the written reviews, especially the ones describing what happened after the job. Look for patterns of return visits, pilot lights that wouldn’t stay lit, slow leaks at the connections, or a company that stopped answering once the check cleared. A single bad review means little. A recurring theme of callbacks tells you how an installer treats the work they can’t see from the curb.
Not getting the warranty terms in writing
There are two warranties in play: the manufacturer’s coverage on the unit and the installer’s coverage on the labor. Homeowners frequently assume both are generous and permanent, then discover a leak six months later isn’t covered because nothing was documented. Get the length of the labor warranty, what it includes, and how to make a claim, all in writing before work starts. A verbal promise disappears the moment you need it.
Skip the license check, the paperwork, and the written warranty, and a gas water heater stops being an appliance and becomes a hazard with your name on it. Vet the person before you hand over the keys.