How Much Does It Cost to Add a Second Sink in the Bathroom?

Adding a second sink to your bathroom isn’t just about convenience—it’s also a popular renovation that can boost functionality, modernize your space, and even increase your home’s value. Whether you’re dealing with early morning routines in a shared bathroom or simply upgrading your master suite, a double sink setup is a smart investment for many New York City homeowners. But how much should you expect to spend?

In this guide, we’ll break down the key factors that influence the cost of adding a second sink, explore common price ranges, and explain how working with a professional bathroom renovation team like MyHome U.S. can make all the difference.

Related Article: What Comes First in Bathroom Remodeling?

Why Add a Second Sink?

Before diving into the numbers, it’s worth understanding why a double vanity is a desirable upgrade.

• Improved Functionality: Two sinks make it easier for couples or families to get ready at the same time without crowding the space.
• Better Resale Value: Buyers often view a double sink as a premium feature in a master or shared bathroom.
• Upgraded Aesthetic: A new vanity with two sinks can refresh the look of your bathroom and create a more balanced design.

Average Cost to Add a Second Sink in NYC

In New York City, the cost to add a second sink to an existing bathroom typically ranges between $1,500 and $5,000. This wide range depends on factors such as plumbing configuration, vanity selection, countertop materials, and labor.

Here’s a general cost breakdown:

• Basic Installation: $1,500 – $2,500
• Mid-Range Installation: $2,500 – $3,500
• Luxury or Custom Installation: $3,500 – $5,000+

Related Article: What Is the Average Package of Bathroom Renovation?

Key Factors That Influence the Cost

Adding a second sink involves more than just picking out fixtures. Several technical and aesthetic elements come into play, and each can impact your overall budget. Here’s a closer look at the main cost drivers:

Plumbing Work

Adding a second sink means extending water supply and drain lines. If your bathroom’s layout supports easy access to plumbing, costs stay lower. However, moving plumbing in NYC apartments—especially in older buildings—can significantly increase labor and permit expenses.

• Simple plumbing extension: $300 – $800
• Complex plumbing relocation: $1,000 – $2,000+

Older apartment buildings in New York may have limited access to plumbing lines, requiring additional time and labor to access behind walls or beneath floors. Any changes to waste lines or water pressure systems could involve city inspection and building permits.

Vanity and Countertop

You’ll need a larger vanity to accommodate two sinks. This could mean replacing your current vanity with a double-sink model or installing a custom-built solution.

• Stock double-sink vanity: $500 – $1,200
• Custom vanity and countertop: $2,000 – $4,000
• Countertop materials (quartz, marble, granite) can also affect pricing.

Higher-end finishes like quartz and marble increase the aesthetic appeal and raise material costs. Custom vanities allow for personalized sizing and storage but take longer to fabricate and require skilled installation.

Sinks and Fixtures

From undermount sinks to vessel or integrated styles, the type of sink you choose will impact both style and cost.

• Standard sinks: $100 – $300 each
• Designer sinks or high-end fixtures: $300 – $700 each
• Faucets: $100 – $500 per unit

Choosing matching or complementary fixtures for a double vanity ensures design consistency. High-end faucets with advanced features like touchless activation or water-saving flow can drive up the price.

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Cabinetry and Storage

You may want to include additional cabinetry or drawers as part of your vanity upgrade. Pre-built options are more affordable, while custom designs tailored to your space will cost more.

Built-in storage solutions like pull-out drawers, linen towers, or internal dividers improve bathroom functionality but require more planning and increase both materials and installation costs.

Labor and Permits

NYC renovations typically involve licensed contractors and strict building codes. You’ll need experienced professionals who understand the city’s permit process.

• Labor: $1,000 – $2,000 depending on scope
• Permits (if required): $200 – $500

Co-op and condo buildings may also require board approval, extending the planning timeline and potentially adding administrative costs. Working with a contractor familiar with NYC regulations helps avoid delays and code violations.

Additional Costs to Consider

• Tile work or backsplash updates: Matching or extending tile behind a new vanity may require retiling or patching.
• Lighting changes (adding sconces above each sink): Lighting upgrades enhance visibility and symmetry but may involve rewiring.
• Wall patching and painting: Any changes to layout or fixtures will require cosmetic touch-ups.
• Disposal of old materials: Removing old vanities, sinks, and countertops carries labour and waste removal fees.

These enhancements can add $500 to $1,500 depending on how extensive your remodel is. Opting for small upgrades like lighting or paint can enhance the transformation without drastically increasing the budget.

Related Article: Bathroom Remodel Ideas on a Budget

How to Keep Costs Under Control

Remodelling doesn’t have to break the bank—especially when you plan strategically. While a second sink upgrade can enhance convenience and add value, it’s important to stay mindful of your budget. Here are some proven ways to keep costs under control without sacrificing quality or design.

1. Work with a Renovation Expert

Hiring an experienced contractor ensures you receive a clear proposal, professional advice, and high-quality work. We handle everything—from planning and permits to sourcing materials and executing the build.

2. Choose Stock Fixtures

Opting for pre-made vanities and sinks can save thousands compared to custom work.

3. Plan Efficiently

Keeping the new sink close to existing plumbing lines will reduce costs significantly. Also, grouping multiple updates into one renovation project can help you save on labor and logistics.

4. Get an Itemized Estimate

An itemized quote helps you understand exactly where your money is going. MyHome U.S. provides detailed proposals so you can make informed decisions.

Why Choose MyHome U.S. for Your Bathroom Upgrade?

At MyHome, we specialize in New York City renovations. Our team of in-house designers, licensed contractors, and project managers work together to deliver:

• Accurate estimates with no hidden fees
• High-quality materials sourced for your taste and budget
• Permitting and code compliance handled for you
• A seamless process from start to finish
• A five-year warranty on all work performed

Our Midtown Manhattan showroom makes it easy to explore different vanities, sinks, and materials with guidance from our expert designers.

A Smart, Stylish Upgrade

Adding a second sink to your bathroom is a cost-effective way to improve functionality, enhance daily routines, and elevate your home’s appeal. With the right team and thoughtful planning, this small upgrade can deliver major results.

If you’re considering a bathroom remodel in New York City, MyHome U.S. is here to help. Schedule your free consultation today and take the first step toward a more functional and beautiful bathroom.