Trenchless Sewer Repair: Cost, Methods, and Which Lines Qualify

Trenchless is often presented as the cheaper option and it is more accurate to call it the less destructive one. The savings are real but they are savings on restoration — driveway, pool deck, sod, interior flooring — rather than on plumbing. On an open yard run with easy access, a conventional trench is sometimes the cheaper job.

The two methods

Cured-in-place lining (CIPP) pulls a resin-saturated sleeve into the existing pipe, inflates it against the wall, and cures it into a jointless pipe inside the old one. The host pipe stays in the ground. Diameter reduces slightly; the smooth new surface usually offsets it.

Pipe bursting pulls a bursting head through the old line, fracturing it outward into the surrounding soil while drawing new pipe in behind. It replaces the pipe rather than lining it and can upsize the diameter, but it needs entry and exit pits and enough soil around the pipe to absorb the fragments.

Florida’s Building Code addresses bursting specifically: the replacement pipe shall be HDPE, SDR 17, conforming to ASTM F714, and the completed section shall be inspected internally by video camera survey and approved by the code official.

Eligibility comes first

Line condition	Lining	Bursting
Corroded and scaled, still round and correctly graded	Yes	Yes
Root intrusion, pipe otherwise sound	Usually, after jetting	Yes
Belly or back-pitch	No — the grade is preserved	Sometimes, if re-grading is possible
Offset joint	No	Often yes
Collapsed section	No	Sometimes, depending on extent
Under a slab inside the house	Case by case	Rarely practical

The rule a working plumber gave is the one to hold onto: “You can only do trenchless if your sewer line has correct pitch and is mechanically sound.” Lining in particular preserves whatever grade the pipe has, including a wrong one — a lined belly is still a belly, and it will still hold standing water.

That determination is made from camera footage. A trenchless quote issued before the line has been scoped is a quote for something nobody has confirmed is possible.

What sets the price

• Whether a usable cleanout exists, or access pits have to be excavated
• Length and diameter of the run and the number of lateral connections to reinstate
• Pre-cleaning — heavy scale or root mass means jetting and robotic cutting before any liner goes in
• Cure method for lining — ambient, hot water, steam, or UV, in ascending cost
• Soil conditions for bursting, since Broward’s sand and fill behave differently from clay
• Whether the run crosses the property line, bringing Broward County right-of-way restoration, permits, and sealed as-builts into the price

South Florida per-foot figures for this class of work are reported at $80 to $250 per linear foot. The homeowner-reported spread on a single lining job — $4,500 against $14,000 for the same 30 feet — shows that the per-foot figure is a starting point and not a quote.

Comparing it fairly against open trench

The comparison only works if both bids cover the same scope including restoration. A trench quote that excludes replacing the driveway is not comparable to a trenchless quote that requires no driveway work.

Ask each bidder for:

• The plumbing cost and the restoration cost as separate lines
• What surface is restored, and to what standard
• Whether the price stops at the property line
• How many days the house is affected and whether water service is interrupted
• The warranty term and what section of pipe it covers

And get more than one bid. In a market with a documented three-to-one spread on identical work, a single quote is not a market price.

“If the footage shows a belly, we say replace. Lining it would be the easier sell and it would leave the standing water exactly where it is.”

To find out which methods your line qualifies for, request a free quote.