Homeowners typically pay a mid-range amount to convert a single kitchen sink to a double bowl, driven by plumbing rerouting, cabinet space, and fixture choices. The total includes labor, materials, parts, and any required permits. The following figures reflect U.S. pricing in USD with low–average–high ranges.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Labor & Installation | $600 | $1,100 | $2,000 | Hours include removal of old hardware and install of new faucet, drain, and supply lines. |
| Cabinet Modifications | $200 | $500 | $1,200 | Hamper inside cabinet, cutouts for new bowls, or removal of divider. |
| Plumbing Materials | $150 | $350 | $900 | Valves, supply lines, trap adapters, pipes. |
| New Sink & Faucet | $200 | $500 | $1,400 | Double-bowl sink + mid-range faucet. |
| Permits & Codes | $0 | $100 | $400 | Depends on locality and scope. |
| Delivery & Disposal | $0 | $80 | $300 | Old components haul-away fee. |
| Contingency & Misc. | $50 | $150 | $400 | Unforeseen fittings or cabinet issues. |
| Total Range | $1,200 | $2,280 | $6,000 | Assumptions: standard kitchen layout, mid-range parts, no major wall work. |
Assumptions: region, specs, labor hours.
Overview Of Costs
Converting a single sink to a double involves three primary cost buckets: materials, labor, and permits. The total typically ranges from about $1,200 on the low end to around $6,000 for complex upgrades. A mid-range project often lands near $2,000–$3,000 when cabinet adjustments are minor and plumbing is straightforward. Key drivers include the sink type, cabinet space, and the complexity of rerouting drains and water lines.
Cost Breakdown
For clarity, a typical project is shown in a matrix of cost factors and values.
| Category | Low | Average | High | Notes |
|---|---|---|---|---|
| Materials | $150 | $350 | $900 | Double sink, drain kit, new faucet hardware. |
| Labor | $600 | $1,100 | $2,000 | Plumber and carpenter time; install complexity. |
| Equipment | $0 | $50 | $200 | Special tools or shims as needed. |
| Permits | $0 | $100 | $400 | Local permit or inspection if required. |
| Delivery/Disposal | $0 | $80 | $300 | Removal of old components; disposal fees. |
| Warranty | $0 | $50 | $150 | Limited warranty on parts/labor. |
| Taxes | $0 | $20 | $120 | Sales tax on materials and fixtures. |
What Drives Price
Key price variables include sink type, cabinet clearance, and piping layout. A compact kitchen with standard 24-inch base cabinet and a straight drain run tends to be cheaper than a long run with tight corners. High-end fixtures, larger bowls, or integrated garbage disposals add cost. Plumbing codes and local requirements can require additional components or inspections.
Ways To Save
Smart planning can trim costs without sacrificing function. Reuse existing plumbing where possible, choose standard-size sinks and faucets, and align the project with off-peak contractor availability. Minor cabinet reconfigurations cost less than full door or countertop replacements. Getting multiple quotes helps identify accurate price ranges before committing.
Regional Price Differences
Prices vary by region due to labor markets and material availability. In the Northeast, expect higher labor rates; the Midwest often sits mid-range; the Southwest may have lower installation costs depending on demand. Typical regional deltas are about ±15%–25% for total project price depending on urban vs rural conditions.
Labor & Installation Time
Most conversions take 1.5–2.5 days for a standard kitchen, including rough-in and cleanup. Timelines extend with custom cabinets, stone countertops, or complex drainage rerouting. A two-person crew is common; longer runs or stacked drawers demand additional labor hours and higher rates.
Real-World Pricing Examples
Three scenario cards illustrate common outcomes for this project.
- Basic: Basic double-bowl sink, standard faucet, minimal cabinet work. Specs: 24″ base cabinet, straight drain, no island work. Labor: 6–10 hours; Total: $1,200–$1,800; per-unit: $50–$125/hour.
- Mid-Range: Mid-tier sink, modest cabinet adjustments, upgraded faucet. Specs: 24″–30″ cabinet, simple drain reroute. Labor: 12–16 hours; Total: $1,800–$3,000; per-unit: $150–$250/hour.
- Premium: Stainless steel with heavy gauge bowls, custom cabinet modification, disposal and filtration. Specs: larger clears, extended drain, specialty fittings. Labor: 18–28 hours; Total: $3,000–$6,000; per-unit: $170–$350/hour.
Assumptions: region, specs, labor hours.
