# Buried Drain Line Service for Denver Commercial Property

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.

## 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.

- 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 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

**Do you clean the floor drains inside my kitchen or restrooms?**

No. Interior floor drains and fixture lines are handled by our sister company Afford-A-Rooter Plumbing. We work on the buried line from the building out to the sewer main, including the section downstream of a grease trap.

**Can you work around our business hours?**

In many cases yes, and we plan the visit around your operating schedule where the job allows it. Some buried line work still requires access during the day, and we tell you upfront if that applies.

**Our grease trap is cleaned regularly, so why does the drain still back up?**

A grease trap slows grease down, it does not eliminate it. The buried discharge line downstream of the trap can still accumulate residue over years even with a well maintained trap, and that residue is what a camera survey and jetting address.

**We have multiple tenants on one building. How do you find whose line is the problem?**

The camera survey shows exactly where the buildup or blockage sits in the shared buried run, which tells us and the property manager which section and which usage pattern is responsible.

**Do you provide documentation for property management or insurance?**

Yes, camera findings and a written summary are provided so the property manager has a record beyond a verbal report.

**Is this a city inspection or a private commercial service?**

No. Denver Sewer and Water is a private, family owned and operated company. We are not Denver Water or the City and County of Denver. We work on the privately owned buried drain line on your property, from the building drain out to the connection point.

## Related Buried Drain Services

- [Drain Inspection and Cleaning](https://www.denversewerandwater.com/drain-inspection-and-cleaning) Camera-led inspection and cleaning of the buried drain line before anyone quotes work.
- [Drain Scope and Video Inspection](https://www.denversewerandwater.com/drain-scope-and-video-inspection) Camera survey of the buried drain from the building foundation out to the main.
- [Drain Hydro Jetting](https://www.denversewerandwater.com/drain-hydro-jetting) High pressure water jetting to strip roots, grease, and scale from a buried drain line.
- [Drain Locating and Troubleshooting](https://www.denversewerandwater.com/drain-locating-and-troubleshooting) Sonde locating and depth marking to find a buried drain line that has no record.
- [Emergency Drain Cleaning](https://www.denversewerandwater.com/emergency-drain-cleaning) Fast response for a backed up or collapsed buried drain line.

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Denver Sewer and Water is a privately owned, licensed and insured plumbing contractor. We are not affiliated with, endorsed by, or connected to Denver Water, the municipal water utility, or any government entity. To pay a municipal water bill or reach the public utility, visit denverwater.org.

Source: https://www.denversewerandwater.com/commercial-drain-cleaning