Who to call · Plumber
Sewer gas smell in house? Here's Who to Call
A rotten-egg or sulfur smell inside your home usually means sewer gas is escaping through a dried-out trap, cracked drain pipe, or failing wax ring on a toilet. Sewer gas contains methane and hydrogen sulfide, which are unpleasant and potentially hazardous in high concentrations. A licensed plumber can locate the source, restore trap seals, replace damaged components, and ensure your venting system is working properly.
What's going on
How to fix sewer gas smell in house
Some "sewer gas smell in house" cases look simple, but getting it wrong almost always costs more than calling a pro: hidden leaks, fire risk, code violations, and insurance headaches. A licensed plumber will diagnose the exact cause, use the right professional tools, and stand behind the repair. Most local pros offer free quotes and can visit the same day or the next.
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Symptoms to look for
- 01
Rotten egg or sulfur smell, especially in bathrooms
- 02
Smell is strongest near drains or toilets
- 03
Odor appears after not using a sink/shower for days
- 04
Smell intensifies on windy days or when HVAC runs
FAQ
Frequently asked questions
Who should I call for: Sewer gas smell in house?
Call a licensed plumber. Plumbers have the specialized training, tools, and insurance to diagnose sewer gas smell in house safely and stand behind the fix. Most offer free quotes and can visit the same day or the next.
Can I fix this myself?
Some minor cases can be handled DIY, but most require a licensed plumber to avoid costly rework and safety risks. A free quote takes under a minute.
How fast can a pro come out?
Most plumbers offer same-day or next-day visits for non-emergency issues. True emergencies (burst pipes, gas smell, no heat in winter) are typically handled within 1–4 hours.
How much does it cost to fix?
Costs vary by severity and your location. Submit a free quote request to get real pricing from local pros in your area.
What are the signs of: Sewer gas smell in house?
Rotten egg or sulfur smell, especially in bathrooms. Smell is strongest near drains or toilets. Odor appears after not using a sink/shower for days. Smell intensifies on windy days or when HVAC runs.