Septic System Installation and Replacement in the Denver Area
An independent, licensed plumbing contractor. Not affiliated with Denver Water or the City and County of Denver.
Septic installation and replacement is the correct answer when a tank has lost structural integrity, when a drainfield has sealed, or when a parcel has no system at all. It is a permitted, inspected, engineered project, and Denver Sewer and Water handles the design coordination, the county process, the excavation, and the restoration.
- New systems on previously unserved parcels.
- Full replacement of failed tanks and fields.
- County health department permitting and inspection.
- Soil and site evaluation coordination.
- In-house excavation and restoration.
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When Does a Septic System Genuinely Need Replacing?
Three findings justify replacement. A tank that has lost structural integrity, meaning cracked walls, a failed bottom, or a lid seat that will no longer carry a lid safely. A drainfield that has sealed, meaning the biomat has closed the soil interface and the field no longer accepts effluent regardless of loading. And a system that is undersized for the building it now serves, which happens after additions and after a change of use.
What does not justify replacement is a single failed component on an otherwise sound system. A cracked lid, a broken baffle, a blocked filter, and a root-bound building sewer are all repairs. Being told that any of those requires a new system is a good reason for a second opinion.
(720) 935-6221Genuine replacement triggers
- Structural failure of the tank walls, bottom, or lid seat.
- A drainfield that no longer accepts effluent after loading is corrected.
- A system undersized for current occupancy or use.
- A parcel with no existing system.
- A system that cannot be brought into compliance by repair.
How We Diagnose It
What Has to Happen Before a System Can Be Installed
A soil evaluation establishes what the ground can absorb, and that number sizes the treatment area. Percolation characteristics, depth to bedrock, and depth to groundwater all constrain both the size and the position of the field, and none of them can be assumed from a neighbouring property.
Then the design goes to the county health department. The permit governs tank size, field size, setbacks from wells, structures, and property lines, and the inspection points during construction. Approval timelines are set by the county and not by the contractor, and any contractor telling you otherwise is managing your expectations rather than your project.
Pre-installation requirements
- Soil and site evaluation on the parcel itself.
- System design sized to soil and building.
- County health department permit application.
- Setback verification from wells, structures, and boundaries.
- Inspection points scheduled into the build.
How a Septic Installation Project Runs
- 1
Evaluate and design
Soil evaluation on the parcel, then a system design sized to the results and to the building it serves.
- 2
Permit
Application to the county health department, with setbacks and inspection points established before work starts.
- 3
Install
Tank set and levelled, building sewer laid to grade, treatment area constructed to the approved design.
- 4
Inspect, backfill, restore
County inspection before cover, then compacted backfill and surface restoration.
What Denver Customers Say About Working With Us
“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.”
“Denver Sewer and Water was a great experience. We had been out of water due to a water main leak into the house for 2 weeks. They came out, gave a go”
What Drives Installation and Replacement Cost
System size drives the base cost, and system size comes from the soil evaluation and the building. Beyond that, the variables are access for equipment, depth, whether an old system has to be abandoned or removed, and whether the soil results force an engineered system rather than a conventional one.
Engineered systems, which become necessary where soils or groundwater rule out a conventional field, cost substantially more and take longer to permit. We tell you that as soon as the soil results indicate it rather than at the point of invoicing.
Call (720) 935-6221 to start with a site visit.
Frequently Asked Questions
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Considering a new or replacement septic system?
Start with an evaluation, not a quote. Call (720) 935-6221.