Sewer Line Replacement Cost Calculator
Compare trenchless pipe bursting vs open-cut sewer line replacement costs based on length, depth, access, and landscaping.
Inputs
Results
Open-cut total cost
$6,456.00
≈ 6 smartphones
Trenchless total cost
$7,000.00
≈ 7 smartphones
How to Use This Calculator
- Enter the line length in feet from your house foundation to the city sewer or septic tank.
- Set the pipe depth — deeper pipes (5+ ft) require more excavation and increase cost significantly.
- Enter the existing pipe diameter (most residential sewer lines are 4 inches).
- Rate access difficulty: 0 = open yard, 1 = landscaping or sidewalk, 2 = under driveway or structure.
- Compare the Open-Cut Total and Trenchless Total to determine the best method for your situation.
- The Trenchless Savings output shows whether pipe bursting makes financial sense for your project.
How the result changes with Pipe depth (ft)
| Pipe depth (ft) | Open-cut total cost | Trenchless total cost |
|---|---|---|
| 3.3 | $6,365.00 | $7,000.00 |
| 6.55 | $9,599.00 | $10,000.00 |
| 10 | $10,046.00 | $10,000.00 |
| 14 | $12,440.00 | $12,000.00 |
What each input means
- Line length (ft)
- Distance from house to city sewer connection or septic tank.
- Pipe depth (ft)
- Depth of existing sewer pipe. Deeper = more expensive.
- Pipe diameter (in.)
- Existing sewer pipe diameter (most residential is 4").
- Access difficulty (0-2)
- 0 = open yard, 1 = landscaping/sidewalk, 2 = under driveway/structure.
- Landscaping restore (0-2)
- 0 = basic (seed/grade), 1 = moderate (sod/shrubs), 2 = premium (hardscape).
What each result means
- Open-cut total cost
- Traditional excavation and pipe replacement.
- Trenchless total cost
- Pipe bursting method with access pits only.
- CIPP lining cost
- Cured-in-place pipe lining (repair, not full replacement).
- Trenchless savings
- How much trenchless saves vs open-cut (negative = open-cut is cheaper).
- Savings %
- Trenchless savings as percentage of open-cut cost.
- Excavation volume (cu. yd)
- Trench volume for open-cut method.
- Landscape restoration
- Cost to restore yard/hardscape after open-cut.
- Open-cut timeline (days)
- Estimated project duration for open-cut.
- Trenchless timeline (days)
- Estimated project duration for trenchless.
- Recommend trenchless?
- 1 = trenchless recommended, 0 = open-cut may be better.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersLine length (ft) = 50, Pipe depth (ft) = 4, Pipe diameter (in.) = 4, Access difficulty (0-2) = 1 = 5 input(s) provided
- Calculate Open-cut total costOpen-cut total cost = openCutPipeCost + excavationCost + restorationCost6456 = $6,456
- Calculate Trenchless total costTrenchless total cost = trenchlessPipeCost + accessPitCost7000 = $7,000
- Calculate CIPP lining costCIPP lining cost = lineLengthFt * cippPerFt + 8008800 = $8,800
- Calculate Trenchless savingsTrenchless savings = openCutTotal - trenchlessTotal-544 = $-544
Engine last updated . Checked against 2 independently-derived tests — how we verify calculators.
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