A sewer smell in the house usually means sewer gas is escaping from the drain, waste, and vent system somewhere it should not. The common causes are a dry trap in an unused fixture, a failed wax ring under a toilet, a cracked or disconnected vent pipe inside a wall or attic, or an open fitting left behind by an earlier remodel. Tracking it down by smell rarely finds the spot. A smoke test fills the drain system with visible test smoke, and the smoke comes out wherever the gas has been getting out.
When to request smoke testing and sewer odor detection
People usually call about a sewer smell in a bathroom or laundry room, an odor that comes and goes with wind or rain, a smell that returns after the drains have been cleaned, or sewer gas after a remodel or a new fixture.
If water or sewage is spreading, call (850) 880-6797 now instead of sending a request. If you smell gas, leave the building and call 911 or the gas utility from outside first, then call Beach to Bayou.
What the service visit can cover
The technician first checks the quick causes: dry traps, a loose toilet, an unused floor drain, a missing cleanout cap. If those are fine, the fixtures are sealed, smoke goes in through the vent or a cleanout, and the technician walks the building watching for smoke at walls, ceilings, fixtures, and the attic. Smoke leaving the roof vents is normal; smoke showing up anywhere else points to a leak. Each leak point is marked, and the technician explains the repair for each one.
The final scope depends on what the technician finds and what can be reached, and you hear the options before any work starts.
Planning for Emerald Coast properties
Second homes and vacation rentals along 30A and in Destin and Santa Rosa Beach can sit empty for weeks, long enough for traps in guest bathrooms and laundry rooms to dry out. That smell goes away once someone runs the water. A smell that stays after every trap has been filled points to a vent or seal problem. Homes that have been remodeled can have abandoned drain stubs or vent connections left open, and a smoke test shows them.
If the property is a rental, a second home, or an open business, include who can let the technician in and when.
What to include in your request
When you call or send a request, mention where the smell is strongest, whether it comes and goes with weather or fixture use, which fixtures are rarely used, recent plumbing or remodel work, and whether the property is a rental with a turnover schedule.
Before the visit, and only where it is safe to do so, clear a path to the problem area, put pets away, and leave the plumbing assembled until the technician has seen it.
What to expect
Sewer odor diagnosis
Dry traps, a loose toilet, and a missing cleanout cap are checked first, before any smoke goes in.
Smoke testing
Visible test smoke shows where sewer gas escapes the drain and vent system.
Vent and seal repair
Cracked vents and failed wax rings are repaired, and abandoned stubs are capped.
Rental and commercial buildings
Rental units get the same test, and so do restrooms, floor drains, and mop sinks in commercial spaces.