Angi
“Just in time. Affordable and reliable company!!! Thank you Josh.”
Vladimir G.
Shrewsbury · Water Heater - Install or Replace
Problem Guide
Sewer Smell in the Building? Find the Source
Odors may come from dry traps, drain buildup, venting problems, leaking seals or sewer-line conditions.
What This Problem Can Mean
Persistent sewer odor should not be covered up with fragrance or chemicals. The source needs to be identified so the underlying plumbing or drainage issue can be corrected.
Warning Signs
Odor near floor drain
Smell around toilet base
Odor worsens after drain use
Multiple rooms affected
Possible Causes
Dry trap
Failed toilet seal
Drain buildup
Venting or sewer-line issue
What To Do Now
Run water into rarely used drains
Note where the odor is strongest
Schedule service if odor persists
What Not To Do
Do not mix chemicals in drains
Do not ignore persistent odor around fixtures
How Tandem Mechanical Can Help
Tandem Mechanical can inspect drainage and plumbing components and recommend the appropriate repair or cleaning path.
Residential Properties
Common in basements, bathrooms, utility rooms and rarely used drains.
Commercial Properties
Can affect restaurants, retail, apartments and facilities with many drains.
Sewer Smell FAQs
Real Customer Reviews
What Tandem Customers Are Saying
Angi
“Responsive, flexible and nice clean work. Listens to needs and provides professional service.”
Doug L.
Palmer · Tankless Water Heater - Install
Angi
“Joshua, the owner, explained the best options for my plumbing needs, and gave me the estimate when he said he would. The repairs were completed on time & the estimate was the actual bill. We now have a working ice maker and no more floods in our basement!”
Randy S.
Google
“Sam from Tandem Plumbing responded promptly to fix an issue with my toilet, and the entire job was handled with great professionalism. He has a reassuring and approachable manner that made the experience stress-free. I was also pleasantly surprised by how fair and reasonable the pricing was. I only wish I’d called sooner!!!”
Amy Lynn
Westfield · Plumbing
Angi
“Prompt, professional, quality work. Highly recommended”
TJ S.
Angi
“Excellent job friendly workers. Very well done. Everything was cleaned up. Would highly recommend them.”
Mary C.
Angi
“Just in time. Affordable and reliable company!!! Thank you Josh.”
Vladimir G.
Shrewsbury · Water Heater - Install or Replace
Angi
“Responsive, flexible and nice clean work. Listens to needs and provides professional service.”
Doug L.
Palmer · Tankless Water Heater - Install
Angi
“Joshua, the owner, explained the best options for my plumbing needs, and gave me the estimate when he said he would. The repairs were completed on time & the estimate was the actual bill. We now have a working ice maker and no more floods in our basement!”
Randy S.
Need Help With Sewer Smell?
Call Tandem Mechanical or book service online. Availability varies by service area, technician capacity and urgency.