Sewer Line Replacement cost: Biloxi vs Hattiesburg (2026)
There's essentially no price gap here: sewer line replacement runs close to $7,100 in both Biloxi and Hattiesburg in 2026.
Biloxi MS
Typically around $7,100
Hattiesburg MS
Typically around $7,100
Biloxi vs Hattiesburg: full breakdown
| Factor | Biloxi | Hattiesburg |
|---|---|---|
| Typical 2026 cost | $7,100 | $7,100 |
| Estimated range | $2,950–$11,200 | $2,950–$11,200 |
| Labor index (vs US) | ×0.93 | ×0.93 |
| Climate zone | Hot | Hot |
| Climate factor | ×0.98 | ×0.98 |
| Local permit | $225 | $225 |
| Labor share | $4,250 | $4,250 |
| Materials/equipment | $2,850 | $2,850 |
These are 2026 planning figures for sewer line replacement, localized to each city — not formal quotes.
Basically a tie — focus on the contractor
The two metros are effectively a wash for sewer line replacement — pick on contractor quality and timing, not location.
Sewer line replacement by type: Biloxi vs Hattiesburg
Below, each sewer line replacement option is priced independently for both cities, with identical local labor, climate and permit logic applied — so the comparison holds up.
| Type | Biloxi | Hattiesburg |
|---|---|---|
| Trenchless lining (CIPP) | $3,900–$11,200 | $3,900–$11,200 |
| Pipe bursting | $4,800–$12,100 | $4,800–$12,100 |
| Traditional excavation | $2,950–$12,100 | $2,950–$12,100 |
All figures are 2026 localized planning estimates for sewer line replacement — get an actual quote before you commit.
Sewer line replacement by line length: Biloxi vs Hattiesburg
Sewer replacement is priced largely by the length of line from the house to the city main, at roughly $50–$250 per foot depending on method, depth, and what's above the trench.
| Size | Biloxi | Hattiesburg |
|---|---|---|
| 25 ft (short run) | $2,050–$5,700 | $2,050–$5,700 |
| 50 ft (typical) | $2,950–$8,450 | $2,950–$8,450 |
| 75 ft | $4,350–$11,200 | $4,350–$11,200 |
| 100+ ft (long / deep run) | $5,700–$16,700 | $5,700–$16,700 |
Sewer line replacement numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
Cheapest time for sewer line replacement in either city
True emergencies pay full rate. But planned projects — a repipe or sewer-line replacement — can be scheduled in a slower month for slightly better pricing and more attentive crews.
How do you budget a major plumbing job?
Plumbing budgets for repipes and sewer lines hinge on two unknowns — the install method and the ground itself. Our editors break down the trade-offs.
The diagnosis-first case
Never budget a sewer or repipe job from a guess. A camera inspection confirms the real scope and stops you paying for work you don't need — or being blindsided by work you do.
The method case
Trenchless runs a higher per-foot rate, but the savings hide in what you never have to rebuild — no torn-up driveway, no re-sodded lawn, no ripped-out patio. Open-cut digging only wins on price when there's almost nothing on top of the line to put back.
The material case
PEX installs faster, costs less, and flexes instead of splitting when a line freezes — a real edge in cold zones. Copper carries a higher price and a longer service life, and some buyers still read it as the quality choice; let your climate and how long you'll own the home make the call.
Start with a camera inspection so the scope is fact, not a guess. Compare trenchless against the dig's full restoration bill, not just the excavation, and choose pipe material for your climate.
Biloxi vs Hattiesburg
Is sewer line replacement cheaper in Biloxi or Hattiesburg?
Practically identical — expect around $7,100 for sewer line replacement whichever city you're in.
Why does sewer line replacement cost more in Hattiesburg than Biloxi?
The main driver is local labor rates: Hattiesburg's labor index is 0.93 versus 0.93 in Biloxi. Climate zone (hot vs hot) also shift the total.
How much is sewer line replacement in Biloxi, MS?
Expect to pay $2,950 to $11,200 for sewer line replacement in Biloxi in 2026, averaging around $7,100.
When is the cheapest time to buy sewer line replacement — and does it differ by city?
The best window is the same in both Biloxi and Hattiesburg: Off-peak winter for planned work, when demand drops and installers discount to keep crews busy — typically Around 5% off peak pricing. The most expensive time anywhere is an emergency replacement during anytime it becomes an emergency.
Should I choose where to live based on sewer line replacement cost?
Cost shouldn't be the deciding factor between Biloxi and Hattiesburg — they land at nearly the same price. Contractor reputation, scope, equipment tier and timing matter more.
Compare sewer line replacement in other cities
Updated June 2026 · By Serhat Özçelik