Buried Drain Line Service for Denver Commercial Property
An independent, licensed plumbing contractor. Not affiliated with Denver Water or the City and County of Denver.
Commercial buried drain service covers the underground drain running from a restaurant, retail space, or multi-tenant building out to the sewer main, distinct from the interior floor drains and branch lines inside the space. Denver Sewer and Water inspects, cleans, and jets the buried run and coordinates around business hours so the property keeps operating.
- Buried drain line service for restaurants, retail, and multi-tenant buildings.
- Camera survey of the underground run before cleaning.
- Grease trap discharge line jetting out to the main.
- Scheduling around business hours where possible.
- Locating for buried lines with no site documentation.
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Why Do Commercial Buried Drains Fail More Than Residential Ones?
Commercial kitchens push far more grease through a drain system than a household ever will, and even a properly sized grease trap only slows that grease down rather than stopping all of it. Over years, that residue coats the buried discharge line and narrows it from the inside, and the failure point is rarely the trap itself but the buried run downstream of it.
Multi-tenant retail and office buildings have a different problem: shared buried drains serving several tenants, where one tenant's habits can cause a backup that shows up in a completely different unit. Sorting out which section of buried line is actually responsible requires a camera survey rather than a guess based on which unit complained first.
(720) 935-6221Common commercial buried drain issues
- Grease coating the buried line downstream of the trap.
- Backups showing up in one tenant space caused by a shared buried line problem.
- Root intrusion in an older buried run under a parking lot or landscaped area.
- Undocumented buried lines on a property that has changed hands or tenants repeatedly.
- Floor drains backing up during peak service hours when flow demand is highest.
- Recurring cabling that clears the symptom but not the buildup on the pipe wall.

How a Commercial Buried Drain Call Runs
- 1
Camera the buried run
Survey from the building's main drain or grease trap discharge out to the connection, timed around business hours.
- 2
Locate and mark if undocumented
A sonde locate traces the route on properties with no site drainage records.
- 3
Select jetting equipment for the load
Descaling nozzles for grease buildup, root cutting heads where landscaping has intruded on the line.
- 4
Clear and verify
The buried run is jetted, then re-scoped to confirm the pipe wall is actually clear, not just draining for the moment.
- 5
Report findings to property management
Camera footage and a summary handed to the property manager or business owner, not just a verbal all-clear.

What Denver Customers Say About Working With Us
“They cleared our drain where Roto Rooter couldn't and quoted us to replace the line under our concrete.”
“Prompt service and worked well into the night to restore service due to hard soil. And did their best to prevent large scars to the yard”
“Denver Water And Sewer did an excellent job replacing my sewer lines. Trevor and his crew are extremely competent, honest, professional and prompt.”
What Drives Commercial Buried Drain Cost
Line length, how many tenants or fixtures feed the shared buried run, and how much grease or scale has built up all move the number. Scheduling around active business hours can also affect how a job is staged.
We camera first so a property manager gets a defensible finding, not a guess, especially where multiple tenants share responsibility for one buried line.
Call (720) 935-6221 to get a commercial buried drain evaluated.
Frequently Asked Questions
Related Buried Drain Services
Drain Inspection and Cleaning
Camera-led inspection and cleaning of the buried drain line before anyone quotes work.
Explore Drain Inspection and CleaningDrain Scope and Video Inspection
Camera survey of the buried drain from the building foundation out to the main.
Explore Drain Scope and Video InspectionDrain Hydro Jetting
High pressure water jetting to strip roots, grease, and scale from a buried drain line.
Explore Drain Hydro JettingDrain Locating and Troubleshooting
Sonde locating and depth marking to find a buried drain line that has no record.
Explore Drain Locating and TroubleshootingEmergency Drain Cleaning
Fast response for a backed up or collapsed buried drain line.
Explore Emergency Drain CleaningOur Family of Companies
For related services, see our sister company partners in the same family of companies:
Commercial floor drains backing up during service?
We check the buried line, not just the trap. Call (720) 935-6221.

