How Much Does a Laundry Room Addition Cost? [2026 Data]

In 2026, the national average cost for a laundry room addition is $15,000. Most homeowners pay between $8,000 and $30,000, with the final price driven by room size, material choices, and the complexity of your plumbing and electrical work.

Laundry Room Addition Costs: What Goes Into Prep Work?

Turning your laundry room remodeling ideas into reality starts with planning and permitting, and those prep costs typically run lower than they would for a larger remodel. 

Building permits range from $150 to $2,000, and you'll need a set of architectural plans to obtain them, which adds $550 to $2,200 for an architect or designer. 

A structural engineer may also need to sign off on those plans before your municipality approves them, at a cost of $350 to $800. If you want help designing the space itself, an interior designer charges $200 to $2,100 for a project of this scale.

Size of the Laundry Room Addition

Room size is the single biggest factor in your laundry room addition budget, with costs ranging from $5,000 to $30,000. Larger spaces require more cabinetry, flooring, wallcovering, and countertops to complete. Costs vary significantly depending on the square footage you choose, as shown in the breakdown below:

Foundation and Framing Costs

A laundry room addition requires a full structural envelope, including a foundation, framed walls, a roof that ties into your existing structure, siding, and insulation, all of which must meet local building code requirements. Here are the associated costs:

• Foundation costs: $1,200–$4,000

• Framing costs: $500–$1,600

• Siding costs: $600–$3,000

• Insulation costs: $150–$400

• Roofing costs: $400–$1,300

Utility Costs

Utility costs for a laundry room addition depend on both the room's size and the complexity of connecting new electrical, plumbing, and HVAC systems to your home's existing infrastructure. Below are the average labor costs for the pros who work on these systems:

• Electrician costs: $40–$120 per hour

• Plumber costs: $45–$200 per hour

• HVAC installer costs: $50–$150 per hour

Finishing Costs

Finishing your laundry room addition means installing floor coverings, wall coverings, cabinetry, and appliances, with costs scaling directly to the size of the space, except for the laundry machines themselves. Here are some costs to expect when finishing the space: 

• Drywall costs: $1.50–$3 per square foot

• Cabinetry costs: $100–$300 per linear foot

• Painting costs: $2–$6 per square foot

• Tile costs: $3–$15 per square foot

• Flooring costs: $3–$25 per square foot

These personal touches can make the space both functional and attractive. The table below shows how finishing and other costs break down as a percentage of the total project:

General Contractor Cost

Most homeowners hire a general contractor or home remodeling contractor to manage the full laundry room addition rather than coordinating each specialist separately, and that convenience comes at a cost of 20% to 50% of the total project price. Your renovation contract will contain details of every step required to complete the project, along with expected completion dates and other essential information.

Additional Pros to Consider Hiring

Depending on the layout and size of your addition, a window or two can improve ventilation and natural light, with window installation costs running $150 to $800 each. Larger laundry room additions often benefit from an exterior entry door as well, which costs $230 to $3,600 and provides convenient outdoor access for hanging clothes to dry.

Additional Cost Factors

Not all laundry rooms are created equal. However, each one will require additional costs that don't neatly fall into typical categories. While some of the following items could be included in your contract, some are not. 

Demolition and Prep 

Demolition and prep work for a laundry room addition, not including foundation requirements, costs between $4 and $17 per square foot, with the total varying based on your plan's specific requirements.

Post-Construction Cleanup

Post-construction cleaning costs typically run $140 to $700 to clear the site and your home once the addition is complete, and this expense is often not included in your contractor's quote, so budget for it separately.

Repurposing the Old Laundry Room

If your addition replaces an existing laundry room, plan to spend $100 to $500 to cap off, remove, or disable the old plumbing, electrical, and HVAC connections. Any additional costs for the vacated space will depend entirely on how you choose to repurpose it.

Landscaping

Landscaping costs vary widely, from as little as $200 to over $15,000, depending on the scope of work you choose. A laundry room addition is a natural opportunity to refresh your landscaping to complement the updated exterior of your home. 

Why You Should Hire a Home Remodeler

If you’re particularly handy, it’s possible to make small updates to your laundry room. However, a large laundry room addition or remodel is a complicated undertaking that requires specialized skills and equipment, especially if you’re moving plumbing or considering a home addition. Hiring a local remodeling contractor is wise when factoring in the time, commitment, and management of tasks involved with this large-scale project.

Here’s why it’s ideal to hire a home remodeling pro

Leaving a big job like a laundry room upgrade to the pros is worthwhile because of these benefits:

• Contractors can route plumbing and drain lines without causing leaks or slow drainage.

• They install electrical wiring to code for grounded, high-wattage appliances, such as washers and dryers.

• Home addition contractors evaluate whether the existing flooring is strong enough to support the weight and vibration of laundry machines.

• They’ll adjust the layout to reduce noise transfer to living areas.

• Home remodelers have the expertise to manage permitting and coordinate the trades and contractors required for the job.

If you want to DIY a laundry room

Leave larger renovations and room additions to contractors with specialized experience, but if you’re simply redecorating an existing room, not moving plumbing lines, electrical outlets, or the dryer vent, you can take on some smaller tasks:

• Paint walls and cabinets with moisture-resistant paint for a fresh, clean look.

• Install shelving or wall organizers, such as open shelving, cubbies, and pegboards, for storing laundry supplies.

• Install a folding table to serve as a countertop area or a surface for folding clothes.

• Consider a hanging rod or retractable clothesline for drying delicate items.

• Add decorative trim or a backsplash to protect the walls behind utility or soaking sinks.

• Make your space functional and appealing with finishing touches like small rugs, wall hooks, wallpaper accents, and matching containers.

Laundry Room Addition vs. Renovation

A full renovation starts at $1,300, while a new addition starts at $5,000, giving you a much wider range of design possibilities in exchange for the higher investment. If your home already has a laundry space, renovating it rather than building an addition can cost far less and take less time, though you may have to compromise on the final result. 

Tips to Reduce Cost While Adding a Laundry Room

Adding floor space to your home for a new laundry room is a significant investment. However, there are several ways to manage costs to help meet a budget. 

• Consider performing some of the finishing tasks yourself. Drywall, flooring, and tile installations are good as DIY projects.

• Discuss disposing of construction waste as a DIY project with your contractor as a way to reduce costs.

• Choose cost-effective materials for your flooring, countertop, and cabinetry. 

• Reuse your old laundry machines in the new space instead of purchasing new ones. 

Does A Laundry Room Addition Increase Home Value?

A laundry room addition can have a return on investment (ROI) of between 60% and 70% of the project cost. Meaning if your addition costs $15,000, you can expect an increased home value of between $9,000 and $10,500, or an average of 3.25% on a $300,000 home. The most popular reason to install a laundry room addition is for your own convenience and comfort rather than as an investment in the house itself.

However, experts disagree on the ROI amounts. The difference in value depends on the market in your area and what buyers are looking for. In many areas, having laundry machines in a basement, hallway, or closet is enough for most buyers. However, in areas where larger homes are the norm, a designated laundry room is often expected. 

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

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