Sewage and Sewer Gas Odor in California

Licensed & insured Every company we put you through to holds current licensing and insurance.
Know what to ask You are told what actually decides the price, so you can judge a quote.
Someone local You are put through to a technician who works your area, not a call center three states away.
Calls answered 7 days Someone picks up seven days a week, weekends included.

Is it urgent?

This week

Sewer gas is unpleasant and, in an enclosed space over time, is a genuine health question. Worth not living with it while it is diagnosed.

Two things override everything on this page. A smell of gas is not an odor job — leave the building and call the utility from outside. And a strong organic smell with flies indoors may be a decomposition source, which is a health matter and should not be approached or disturbed.

Signs to look for

A sewer smell in a bathroom, laundry or basement
Odor worse after heavy rain or when a fixture is used
A drain that is rarely used in the same room
A toilet that rocks or has a stain at its base
A smell that appeared after plumbing work

How the work is done

Rule out dry traps first, because it is free and it is often the answer
Smoke test the system where the source is not obvious
Check wax seals, vent terminations and any under-slab line
Treat the material the gas has permeated only after the fault is fixed

In California specifically

California's Mediterranean on the coast, hot and dry inland climate and its housing stock — stucco ranch and bungalow, tile or composition roofs, slab in the south and raised crawlspace through the Bay Area and the north — decide what is worth doing first. California is also the one state where duct leakage is routinely tested: Title 24 requires a HERS-verified duct test on most furnace or air-conditioner changeouts, so a duct problem here often surfaces as a failed test rather than as a complaint.

Before the technician arrives

Four things worth doing — and the first one is usually the thing people get wrong.

Run water into every drain in the property, including ones you never use. A dry trap is the single most common cause and costs nothing to rule out.
Check whether a toilet rocks. A failed wax seal is the second most common cause.
Note whether it is worse in wet weather, or when a particular fixture is used.
Do not pour bleach down the drains. It will not fix it and it makes the diagnosis harder.

What the work looks like

Photographs of sewage and sewer gas odor being carried out, so you know what to expect on the day.

How it works

Three steps, and you decide at the end of them.

1
You call and describe the problem

Tell us what you have noticed and where — the room, the smell, the noise, how long it has been going on. Give us your ZIP code and we will match you to a licensed company covering your area. There is no form to fill in.
2
A local company takes it from there

They discuss the problem with you directly, arrange a time to inspect, and agree the work and the price with you before anything starts. That conversation is between you and them.
3
You decide whether to go ahead

You are under no obligation. If the quote or the approach is not what you wanted, you are free to say no and call someone else.

Sewage and Sewer Gas Odor — FAQs

Do I actually need Sewage and Sewer Gas Odor done?

Sewer gas is unpleasant and, in an enclosed space over time, is a genuine health question. Worth not living with it while it is diagnosed.

What does Sewage and Sewer Gas Odor involve?

Tracing a sewer smell to the fault causing it. Usually a dry trap, a failed seal or a venting problem — and usually cheaper to fix than people fear.

What makes this different in California?

California's Mediterranean on the coast, hot and dry inland climate and its housing stock — stucco ranch and bungalow, tile or composition roofs, slab in the south and raised crawlspace through the Bay Area and the north — decide what is worth doing first. California is also the one state where duct leakage is routinely tested: Title 24 requires a HERS-verified duct test on most furnace or air-conditioner changeouts, so a duct problem here often surfaces as a failed test rather than as a complaint.

Are the companies licensed and insured?

Yes. We only pass calls to licensed, insured operators working in California, and you are welcome to ask to see a license number on arrival.

What does Sewage and Sewer Gas Odor cost?

It depends on the property, the size of the system and what the inspection finds, so we do not publish a price — a figure quoted on a web page is not one the attending company has agreed to. You get a price before any work starts.

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