Diagnose damaged sewer lines, repair targeted failures where practical, and replace severely deteriorated or collapsed sections when needed.
Sewer Main Repair & Replacement addresses underground sewer piping that is damaged, collapsed, badly deteriorated, offset or otherwise not practical to correct with cleaning alone. Diagnosis should occur before excavation so the repair scope matches the observed condition whenever access permits.
Professional service covering the full scope of sewer main repair & replacement needs.
Repair of a localized damaged section when site and pipe conditions make that practical.
Replacement of failed or extensively deteriorated sewer piping when repair is not the right long-term option.
Trenching and excavation support for plumbing-related underground sewer work where required.
Inspection to help identify the affected area before selecting the repair approach.
If you're experiencing any of these issues, a technician can diagnose the problem and recommend the right solution.
Our first job is to diagnose the problem. We do not assume a failed system automatically needs replacement.
Not every sewer issue requires full replacement. Our team evaluates the condition of your system and performs targeted repairs whenever possible, saving you time and money while restoring proper function. Targeted repairs include crack and leak repairs, clearing blockages and buildup, fixing minor pipe damage, and restoring proper flow. If your sewer line is severely damaged, collapsed, or outdated, replacement may be the best option. We install durable, modern piping systems designed for long-term reliability and performance, replacing aging or deteriorated sewer lines, upgrading to modern durable materials, improving system efficiency and reliability, and preventing recurring issues and backups.
Traditional heavy-duty piping often found in older homes, susceptible to internal corrosion and rust buildup over time.
Modern, smooth-walled plastic piping that is resistant to corrosion, root intrusion, and chemical degradation.
Common in municipal sewer systems and older residential properties, known for being brittle and prone to joint separation or root infiltration.
Bituminized fiber pipe used in the mid-20th century that is prone to structural collapse and deformation due to soil pressure.
Review symptoms and available sewer history
Use camera inspection or other diagnostics when appropriate to identify the affected area
Determine whether cleaning, targeted repair, or replacement is the practical next step
Explain the proposed scope, access needs, and restoration considerations
Complete the approved repair or replacement work
Test drainage and review any follow-up recommendations
Residential sewer failures can affect toilets, floor drains, basements, yards, and the entire plumbing system. We focus on restoring reliable drainage while limiting unnecessary disruption where possible.
Commercial sewer work requires coordination around building operations, tenant access, safety, and downtime. We plan the plumbing and excavation sequence around the property conditions and approved scope.
Repair decisions depend on pipe material, depth, access, location of damage, surrounding utilities, soil and site conditions, extent of deterioration, and whether a localized repair is practical.
Recurring backups after repeated cleaning should be investigated rather than treated as a routine clog indefinitely. Camera inspection and documentation can help determine whether the line has a structural problem.
Sewer repair and replacement are available throughout Tandem Mechanical's active service area where site conditions and project scope are appropriate.
Select a covered town where this service is currently listed for local details and booking.
“Highly recommend this plumbing company! They were extremely friendly, knowledgeable, and helpful from start to finish. They took the time to explain everything clearly and made sure the job was done right. Everything was handled in a timely manner, and the whole experience was smooth and stress-free. They were professional, responsive, and easy to work with. Definitely a great first choice if you need reliable plumbing work!”
D
Plumbing
“Had my water tank go on me this past weekend memorial weekend at that! But fortunately i was covered 100% by warranty and tandem mechanical was the company the insurance sent my way Viktoria was great in communication with me explaining everything from start to finish even offered to come in on that very same weekend her crew of guys please don’t be taken back they are young but very smart educated and well prepared for the job very knowledgeable and knew exactly how to get the job done Sam took over and he finished the job due to one of the guys who had to leave early (no waiting he did not leave or stopped working until Sam got there)Sam took his time and made sure everything was put back in order he was kind enough to accompany me to the store to make the exchange return yesterday was very hot he did not once complained very patient and i think that is very important in jobs like these. I will be using them again i couldn’t be happier with their service from start to finish thank you all! Keep up the amazing work!”
Crissy
Water Heaters
“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
“Responsive, flexible and nice clean work. Listens to needs and provides professional service.”
Doug L.
Palmer · Tankless Water Heater - Install
“Josh and his team are professional, experienced and productive! I appreciate that he was able to repair my pipe with an cost effective approach. I would recommend Tandem Mechanical.”
Andy L.
“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.
“Highly recommend this plumbing company! They were extremely friendly, knowledgeable, and helpful from start to finish. They took the time to explain everything clearly and made sure the job was done right. Everything was handled in a timely manner, and the whole experience was smooth and stress-free. They were professional, responsive, and easy to work with. Definitely a great first choice if you need reliable plumbing work!”
D
Plumbing
“Had my water tank go on me this past weekend memorial weekend at that! But fortunately i was covered 100% by warranty and tandem mechanical was the company the insurance sent my way Viktoria was great in communication with me explaining everything from start to finish even offered to come in on that very same weekend her crew of guys please don’t be taken back they are young but very smart educated and well prepared for the job very knowledgeable and knew exactly how to get the job done Sam took over and he finished the job due to one of the guys who had to leave early (no waiting he did not leave or stopped working until Sam got there)Sam took his time and made sure everything was put back in order he was kind enough to accompany me to the store to make the exchange return yesterday was very hot he did not once complained very patient and i think that is very important in jobs like these. I will be using them again i couldn’t be happier with their service from start to finish thank you all! Keep up the amazing work!”
Crissy
Water Heaters
“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
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