Sewer Tap Installation in Denver
An independent, licensed plumbing contractor. Not affiliated with Denver Water or the City and County of Denver.
A sewer tap is the connection between a property's sewer service and the public sanitary main. Denver Sewer and Water is a private, family owned contractor. We are not the City and County of Denver. The wastewater authority permits and inspects the tap. We perform it.
- New and replacement sanitary sewer taps.
- Main line connection and service run.
- Permit coordination and inspection support.
- Deep excavation with proper shoring.
- Private contractor, not the city.
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What a Sewer Tap Is
A sewer tap is the point where a property's sewer service line connects to the public sanitary sewer main. Depending on the main and the jurisdiction it may be a saddle connection, a cored connection with a boot, a wye fitting, or a manhole connection.
Sewer taps sit deeper than water taps because sanitary mains run deep enough to serve everything above them by gravity. That depth drives the excavation, the shoring, and most of the cost.
Grade is the other defining constraint. The service has to fall continuously from the building to the main, and that requirement decides the route as much as the property layout does.
(720) 935-6221When a Sewer Tap Is Required
- New construction with no existing sanitary service.
- Converting a property from septic to public sewer.
- Splitting a shared service into separate connections.
- A failed connection at the main that cannot be repaired in place.
- Reconnecting a service that was previously abandoned.

How We Diagnose It
Who Authorizes the Tap and Who Performs the Tap
Denver Sewer and Water is a private, family owned and operated contractor. We are not Denver Water or the City and County of Denver. We do not issue permits, set fees, own the mains, or approve service. The utility or municipality with jurisdiction does all of that.
The wastewater authority or sanitation district owns the main, approves the connection type and location, issues the permit, charges the connection and system development fees, and inspects the tap before backfill.
Denver Sewer and Water performs the excavation, the connection at the main, the service run, and the restoration under that permit.
The authority authorizes. The licensed contractor performs. Below is the split for this type of work.
Authority Side and Contractor Side
- Authority: Owns the sanitary main and approves connection type and location.
- Authority: Issues the tap permit and sets connection fees.
- Authority: Inspects the open connection before backfill.
- Authority: Accepts the service into the public system.
- Denver Sewer and Water: Verifies main depth, location, and available grade before design.
- Denver Sewer and Water: Prepares and submits the contractor side of the permit package.
- Denver Sewer and Water: Excavates and shores to the main safely.
- Denver Sewer and Water: Makes the connection to the approved detail and sets the service to grade.
- Denver Sewer and Water: Holds for inspection, then backfills, compacts, and restores.
How a Sewer Tap Project Runs
- 1
Locate the Main and Check Grade
We confirm main depth and position and verify there is workable fall from the building before anything is designed or applied for.
- 2
Permit Package
The application goes in with the required detail on connection type, route, and depth.
- 3
Excavate and Connect
The trench is opened with proper protective systems, the connection is made to the approved detail, and the service is laid to grade.
- 4
Inspect, Backfill, Restore
The authority inspects the open work, then we backfill in lifts, compact, and restore the surface.

Work With a Contractor Who Handles the Paperwork Side Too
Sewer Tap Fees and Who Charges Them
The authority side typically includes a connection or tap fee, a system development or plant investment charge, permit fees, and inspection fees. These are charged to the property owner by the authority.
The contractor side covers excavation depth and length, shoring, dewatering if groundwater is present, traffic control, materials, and surface restoration.
We do not publish fee amounts. Tap fees, plant investment fees, permit fees, and inspection fees are set by the authority with jurisdiction and change on their schedule, not ours. We confirm the current figures in writing with that authority for your address before work is scheduled.
Frequently Asked Questions
Related Tap Services and Municipal Process Pages
Sanitary Sewer Connection for New Construction
Sequencing the sewer connection inside a new build schedule.
Explore Sanitary Sewer Connection for New ConstructionDenver Wastewater Tap Fees Explained
What each fee category on a wastewater tap project is for and who charges it.
Explore Denver Wastewater Tap Fees ExplainedTap Permit Process in Denver
How a tap moves from application to authorized construction in Denver.
Explore Tap Permit Process in DenverStorm Drain Connection
Connecting site drainage to a public storm system and why it is a separate approval.
Explore Storm Drain ConnectionAbandonment and Cut-and-Cap Requirements
Properly killing an old service at the main during demolition or replacement.
Explore Abandonment and Cut-and-Cap RequirementsDenver Water Tap Installation
Who authorizes a water tap, who physically makes the connection, and how the two fit together.
Explore Denver Water Tap InstallationPlanning a Sewer Tap?
We confirm main depth, grade, and the authority's requirements before you commit to a schedule.

