Homeowners typically pay for vanity conversions to add counter space and two sinks, driving costs up from a simple replacement. Main cost drivers include cabinet modification, countertop work, plumbing changes, and labor. This guide outlines realistic pricing in USD, with low, average, and high ranges to help plans and bids.
Assumptions: regional market, standard 60-inch vanity footprint, standard material choices, mid-range contractor labor.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Base cabinet modification | $300 | $700 | $1,200 | Width widening, drawer/door adjustments |
| New double vanity cabinet (replacement) | $600 | $1,000 | $2,000 | Custom or semi-custom options |
| Countertop work | $200 | $400 | $900 | Cutting, edge finish, seam/adhesive work |
| sinks & plumbing rough-in | $150 | $350 | $750 | Sinks, trap, supply lines, venting |
| Faucets & accessories | $150 | $300 | $550 | Two faucets, shutoffs, valves |
| Labor (installation) | $600 | $1,000 | $1,800 | Removal, cabinet install, plumbing hookup |
| Permits & inspections | $0 | $100 | $400 | Depends on jurisdiction |
| Delivery/Disposal | $50 | $150 | $350 | Old vanity removal, haul-off |
| Total project | $2,000 | $3,800 | $6,200 | Assumes mid-range materials and standard 60″ vanity line |
Overview Of Costs
Cost ranges reflect common configurations for turning a single vanity into a double setup. The project spans cabinet work, countertop adjustments, plumbing changes, and labor. The total price depends on whether the existing vanity is retained with minimal widening or replaced with a new double unit. Typical per-unit considerations include width increase, sink count, and faucet placement. The overview below shows total project ranges and per-unit ranges where applicable.
Assumptions: region, specs, labor hours.
Cost Breakdown
Major components include cabinet work, countertop fabrication, plumbing rework, and labor. Below is a practical breakdown using a table that pairs totals with some per-unit context.
| Component | Low | Average | High | Notes |
|---|---|---|---|---|
| Materials | $800 | $1,400 | $2,400 | Wood, finishes, sinks |
| Labor | $600 | $1,000 | $1,800 | Trade labor for installation |
| Plumbing & rough-in | $150 | $350 | $750 | Valves, traps, lines |
| Countertop & fit | $200 | $400 | $900 | Cutouts and edge work |
| Faucets & hardware | $150 | $300 | $550 | Two faucets, caps |
| Permits | $0 | $100 | $400 | Local rules may apply |
| Total | $2,000 | $3,800 | $6,200 | All-in estimate |
What Drives Price
Key drivers include the current vanity width, countertop material, and plumbing needs. If the existing cabinet is narrow or has unusual dimensions, more cabinet modification or replacement is required. Countertop material quality (laminate vs stone) also shifts costs significantly. Plumbing complexity, such as extended run lengths or special venting, adds to labor and materials. For a 60-inch to 72-inch conversion, expect higher labor time and more precise carpentry compared to a simple widening.
Assumptions: standard 2-sink configuration; no custom millwork.
Ways To Save
Planning ahead can reduce surprises and limit on-site time. Consider reusing the existing countertop if it’s in good condition with a professional cut, or choosing a cost-effective laminate option over stone. Matching faucet models with common sizes minimizes customization. If feasible, combine vanity work with nearby bathroom updates to secure bundled pricing from a contractor.
Regional Price Differences
Prices vary across regions due to labor rates, material costs, and permit requirements. In the Sun Belt, labor may be slightly lower, while coastal markets often show higher countertop and transport costs. Urban areas generally add delivery and permit fees, whereas rural markets might offer better labor-to-material value but longer project timelines. A typical delta is about ±15% to ±25% between strong market hubs and rural areas.
Assumptions: three representative markets used for comparison.
Labor, Hours & Rates
Labor time is a major factor in total cost. A basic widening and hook-up can take 1.5–2.5 days for two installers, while a full replacement with new cabinetry may stretch to 2.5–4 days. Hourly rates commonly fall in the $55–$120/hour range, depending on region and contractor expertise. Allow for extra time if plumbing changes require re-routing supply lines or venting.
Assumptions: two-person crew; typical 8-hour days.
Extra & Hidden Costs
Hidden costs can appear in small but important areas. Electrical labor for lighting or outlets, extra trenching for plumbing, or heavy-duty demolition may add $150–$400 each. If the countertop needs a new edge or an extra seam, plan for additional materials and labor. Delivery of heavy vanity components or specialty hardware may incur a modest surcharge in some markets.
Assumptions: no major structural changes.
Real-World Pricing Examples
Three scenario cards illustrate practical outcomes.
Basic: Minimal widening, laminate countertop, standard faucets
Specs: 60″ to 72″ overall width; laminate top; standard two sinks. Labor: ~14–18 hours. Parts: mid-range cabinets, basic sinks, standard faucets. Total: $2,000–$2,800.
Mid-Range: Moderate upgrade with granite-look laminate, upgraded cabinets
Specs: 60″ unit widened with mid-grade cabinet doors, solid-surface edge, granite-look laminate countertop; two standard sinks and upgraded faucet set. Labor: ~20–28 hours. Total: $3,000–$4,500.
Premium: Real stone countertop, custom cabinetry, high-end fixtures
Specs: Full custom or semi-custom double vanity with stone or quartz top, premium fixtures. Labor: ~30–40 hours. Total: $5,000–$7,500. Assumptions: region, specs, labor hours.