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Sewer Smell in House NYC

Persistent sewer smell in your home? We identify the source with camera inspections and provide permanent solutions.

Licensed Master Plumber $2M Insured 4.9/5 Rating (487+ Reviews) 24/7 Emergency Service All 5 NYC Boroughs
Last Updated: February 1, 2026Reviewed by Licensed NYC Master PlumberFact-Checked

Why Does My House Smell Like Sewage?

A sewer smell in your NYC home is more than just unpleasant — it can indicate a serious plumbing problem and potential health hazard. Sewer gas contains hydrogen sulfide, methane, and other harmful compounds. Common causes of sewer odors in NYC homes include: cracked or broken sewer lines that allow gas to escape, dry P-traps in infrequently used drains, damaged or missing wax seals on toilets, blocked or damaged plumbing vent pipes, tree root intrusion creating openings in sewer pipes, and deteriorating sewer connections. If you smell sewage in your home, do not ignore it — the problem will only get worse.

How We Diagnose Sewer Odors

Sewer & Water Pros uses a systematic approach to find the source of sewer odors. Our process includes: visual inspection of all accessible plumbing fixtures and connections, checking P-traps for proper water levels, inspecting toilet wax seals, HD sewer camera inspection of your sewer line to identify cracks, breaks, or root intrusion, smoke testing to identify leaks in the drain-waste-vent system, and checking plumbing vent pipes on the roof. Our camera inspection is the most effective diagnostic tool — it shows us the exact condition of your sewer line from the inside.

Permanent Solutions for Sewer Odors

Once we identify the source, we provide a permanent fix. Solutions range from simple fixes like refilling dry P-traps and replacing wax seals, to more involved work like sewer line repair or replacement for cracked pipes, vent pipe repair or replacement, and trenchless pipe lining to seal cracks and joints throughout the sewer line. For NYC properties with aging sewer lines (50+ years old), a full sewer camera inspection is recommended even if the odor seems minor — small cracks that cause odors today can lead to major failures tomorrow.

Frequently Asked Questions

Why does my house smell like sewage?
Common causes include cracked sewer lines, dry P-traps, damaged toilet wax seals, blocked vent pipes, and tree root intrusion. A sewer camera inspection can identify the exact cause.
Is sewer gas dangerous?
Yes. Sewer gas contains hydrogen sulfide and methane, which can cause headaches, nausea, and dizziness at low concentrations. At high concentrations, sewer gas can be flammable and potentially fatal. Do not ignore persistent sewer odors.
How do I get rid of sewer smell in my house?
First, run water in all drains to refill P-traps. If the smell persists, call a licensed plumber for a professional diagnosis. The solution depends on the cause — it could be as simple as a wax seal replacement or may require sewer line repair.
How much does it cost to fix a sewer smell?
Costs vary widely depending on the cause. Simple fixes like P-trap refilling or wax seal replacement cost $100-$300. Sewer line repairs range from $3,000-$8,000. Full sewer line replacement costs $10,000-$25,000. A camera inspection ($0 with our free estimate) identifies the most cost-effective solution.

About the Author

Sewer & Water Pros Editorial Team

Licensed NYC Sewer & Water Main Contractors

Our content is written and reviewed by licensed NYC master plumbers who specialize exclusively in sewer line replacement and water main replacement. With over 20 years and 5,000+ sewer and water main jobs completed across all five boroughs, we know NYC's underground pipe infrastructure inside and out. Every article is fact-checked against current NYC DEP regulations.

20+ Years

Experience

5,000+

Projects Done

5

Boroughs Served

Credentials & Certifications

NYC Licensed Master Plumber (LMP)
NYC DEP Certified Contractor
OSHA 30-Hour Safety Certified
Insured & Bonded — $2M Liability Coverage
Member: NYC Master Plumbers Council
Member: National Association of Sewer Service Companies (NASSCO)

NYC Licensed Plumber

Master Plumber License #XXXX

DEP Sewer & Water Certified

Approved for All Sewer & Water Main Work

BBB A+ Rated

Sewer & Water Main Specialist

24/7 Sewer & Water Emergency

60-Minute Response Time

4.9/5 Rating

487 Verified Reviews

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Contact Sewer & Water Pros today for a free estimate. We serve all five NYC boroughs with licensed, insured, and DEP-certified sewer and water main services.