Plumbing Estimating Guide
How to Estimate Plumbing Jobs
Plumbing estimates require understanding fixture costs, labor productivity, and the hidden factors that turn profitable jobs into money losers. This guide covers pricing strategies for service, remodel, and new construction plumbing.
Quick Answer
Plumbing pricing uses flat-rate books for service ($150-$500+ per repair), per-fixture pricing for remodels ($500-$2,500/fixture installed), or hourly + materials for T&M work ($75-$150/hour). Total markup is typically 45-70% on direct costs to cover overhead and profit.
Plumbing Pricing Methods
| Job Type | Pricing Method | Typical Price Range |
|---|---|---|
| Service/repair calls | Flat-rate book | $150-$500+ per repair |
| Fixture replacement | Per fixture | $300-$800/fixture |
| Bathroom remodel plumbing | Per fixture or lump sum | $2,500-$8,000 |
| Kitchen remodel plumbing | Lump sum | $1,500-$4,000 |
| Water heater replacement | Flat rate by type | $1,200-$3,500 |
| Whole-house repipe | Per fixture + linear foot | $4,000-$15,000 |
| New construction (per fixture) | Per fixture | $800-$1,800/fixture |
Fixture Pricing for Remodels
Per-fixture pricing simplifies estimates for bathroom and kitchen remodels:
| Fixture | Rough-In Only | Rough + Finish (labor only) |
|---|---|---|
| Toilet | $200-$400 | $350-$600 |
| Lavatory sink | $250-$450 | $400-$700 |
| Shower/tub | $400-$800 | $700-$1,200 |
| Kitchen sink | $300-$500 | $500-$900 |
| Dishwasher hookup | $150-$300 | $200-$400 |
| Ice maker line | $150-$250 | $200-$350 |
| Washing machine box | $200-$400 | $300-$500 |
| Water heater hookup | $200-$400 | $350-$600 |
Relocation Adds Cost
Moving fixtures from their original location adds $300-$1,000+ depending on distance and obstacles. Always price fixture relocation separately from standard replacement.
Labor Hour Estimates
Standard labor times for common plumbing work:
| Task | Labor Hours | Notes |
|---|---|---|
| Toilet replacement | 1-2 hours | Simple swap |
| Faucet replacement | 1-2 hours | Depends on access |
| Garbage disposal install | 1-2 hours | New install takes longer |
| Water heater swap (tank) | 3-5 hours | Standard replacement |
| Water heater swap (tankless) | 6-10 hours | Often needs gas/electrical upgrades |
| Full bathroom rough-in | 8-16 hours | Depends on access and layout |
| Kitchen rough-in | 4-8 hours | Sink, dishwasher, ice maker |
| Repipe bathroom (PEX) | 6-12 hours | Depends on access |
Calculating the Bid
Plumbing Bid Formula
Bid = (Fixtures + Materials + Labor) × (1 + Overhead%) ÷ (1 – Profit%)
Example: Bathroom Remodel Plumbing
- Fixtures: Customer provides (we rough and finish only)
- Labor: 16 hours × $65/hour burdened = $1,040
- Materials: $380 (PEX, fittings, valves, misc)
- Direct costs: $1,420
- With 38% overhead: $1,420 × 1.38 = $1,960
- For 20% profit: $1,960 ÷ 0.80 = $2,450 bid
Service Call Flat-Rate Pricing
Common flat-rate service prices (parts + labor):
- Service call / diagnostic: $89-$150
- Unclog drain (snake): $150-$300
- Unclog drain (hydro-jet): $350-$600
- Faucet repair: $150-$275
- Toilet repair: $150-$300
- Garbage disposal replacement: $350-$550
- Water heater repair: $200-$400
- Leak repair (accessible): $200-$400
- Leak repair (wall/slab): $500-$2,000+
Hidden Cost Killers
Watch for access issues (finished walls, slab work), old galvanized or lead pipes requiring special handling, permit requirements, and code upgrades (like adding shutoffs where none exist). These hidden factors can double job time.
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