Mudroom Remodeling: What It Costs and How to Plan It

Boots pile up by your back door, coats end up on a dining chair, and road salt gets tracked straight into the kitchen. A mudroom gives those things a permanent place, but the price depends heavily on what exists behind that door today. Reworking an existing room costs $5,000 to $15,000, a cantilevered bump-out comes in around $15,000 to $25,000, and an addition on new footings starts around $25,000 and can pass $40,000.

A garage entry opening into a laundry corner calls for a different plan from a back hall off the kitchen. If the house has no side or rear entry at all, you're also paying to create an exterior opening.

What a mudroom remodel can cost

A small mudroom can look surprisingly expensive on a per-square-foot basis. Permits, design, roof tie-ins, exterior matching, and crew mobilization don't shrink in proportion to the room, so a 40-square-foot bump-out can cost more than $500 per square foot even if a larger addition on the same house comes in closer to $200. For early budgeting, use the project total.

The above ranges cover materials and labor but not appliances. 

A closet uses less flooring and drywall, but custom millwork, electrical changes, demolition, and crew setup can put an ambitious closet conversion in the same price range as a simple back-hall remodel.

Converting space you already have

Say you have a back hall measuring 5 by 8 feet with a coat closet at one end. Removing the closet, adding a built-in bench and storage bays, tiling the floor, and bringing in new lighting and an outlet puts a straightforward conversion between $5,000 and $15,000. Construction takes about 2 to 3 weeks once the materials are ready.

A closet gives you less room but doesn't eliminate the expensive parts of the job. Converting one into an open drop zone with a bench, hooks, shoe storage, and finished millwork costs $5,000 to $12,000. You'll also want at least 24 inches of depth if sitting down inside the former closet is part of the plan.

Block Renovation's guide to converting a closet into a mudroom gets into the layout and construction choices in more detail. An enclosed porch is a different proposition because insulation, heat, flooring, and the condition of the existing structure all enter the scope. See porch-to-mudroom conversion costs and surprises before budgeting a porch like an ordinary interior room.

Cantilevered bump-outs and additions on footings

Have the existing framing reviewed before drawing the mudroom around a 2 or 3 foot projection. Some houses can support that depth from the existing floor system, avoiding excavation and new footings. Budget $15,000 to $25,000 for that type of bump-out.

Once new foundation support enters the scope, expect about $25,000 to $40,000 or more. Joist depth by itself doesn't establish the allowable projection, either: the framing system, loads above, and manufacturer requirements for engineered joists all matter.

Setbacks and soil conditions may limit a design that works structurally, and permits add about $150 to $3,000. A footprint change can also bring zoning review, adding 4 to 8 weeks before construction in some dense suburbs. The guide to custom mudroom additions goes deeper on addition costs, dimensions, and design decisions.

What cabinetry costs per linear foot

An 8 foot wall can cost $800 in stock cabinetry or as much as $9,600 site-built, so ask contractors to price the millwork separately.

It's easy to argue that custom millwork matters more in a mudroom than in any other room in the house, especially when space is tight. Locus Design used the cabinetry in this San Diego project to make use of nearly the entire mudroom wall to create storage for shoes, coats, and everyday gear without making the entry feel crowded.

Factors that make some mudroom remodels much more expensive

• Plumbing adds another trade. A utility sink or dog wash needs a supply line, drain, and in many layouts a vent, so budget $2,000 to $6,000 with no rough-in nearby. Put the fixture farther from an existing plumbing stack and you're also paying for more pipe, labor, and wall or floor repair.
• Radiant heat is easiest to add while the floor is open. Electric mats under tile cost $10 to $20 per square foot installed. Adding them after the remodel means opening a finished floor again.
• Laundry adds 4 separate systems. Water supply, a drain, dryer venting, and a dedicated circuit all have to reach the same wall.
• A new exterior door changes the framing. Cutting an opening in a load-bearing wall requires a header, followed by exterior flashing, trim, and siding repairs.
• An unfinished porch or garage may need insulation and heat. Budget for the walls, floor, ceiling, and a heat source if the existing space isn't already conditioned.
• Flooring prices vary widely. Installed porcelain costs $8 to $25 per square foot. Across a 50-square-foot mudroom, that's $400 to $1,250 before demolition or subfloor repairs.

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Mudroom design ideas that work in real houses

Give yourself about 36 inches of clear walkway and 30 inches of open floor in front of the bench. You'll have enough room to sit down and pull off a boot without blocking somebody coming through the door. Squeeze that clearance too far and the bench becomes an inconvenient place to sit.

The single-wall drop zone

A 5 foot wall gives you room for a bench, shoes underneath, and roughly 3 or 4 storage bays above. If each person gets a bay, backpacks and winter coats are far less likely to spill into the walkway.

The garage entry

Start with the door swing. A 32 inch door uses about 8 square feet as it opens, and putting a bench inside that arc creates a problem every time someone comes in carrying groceries or a bag. Measure the swing before you choose the cabinetry depth.

Many attached garages are also 4 to 8 inches below the house. You can use that change in level to separate the dirtier landing from the finished entry, with tile across the landing and the first few feet inside.

The wall and ceiling surfaces separating an attached garage from the dwelling are subject to code-required dwelling-garage separation provisions. If you're adding recessed storage or changing an opening there, ask the contractor what assembly your local code requires before the wall is opened.

The laundry and mudroom combination

Should the washer and dryer go here too? If dirty clothes already enter the house through the mudroom, putting laundry in the same space saves you from carrying them through another floor or hallway.

A laundry room was rated essential or desirable by 86% of buyers in the National Association of Home Builders' 2024 preferences study. Remodeling existing space for both uses costs roughly $10,000 to $30,000, depending heavily on plumbing and cabinetry. Bringing a new supply and drain over from the main stack adds $2,000 to $6,000, while a new addition containing both functions can reach $30,000 to $50,000 or more.

Once the washer and dryer are in, the bench and entry door are competing for the same few feet of clearance. These mudroom and laundry room ideas and layouts show several ways to arrange them in the same footprint.

Small mudroom layouts and pass-through entries

A room under 4 feet wide usually can't spare 18 inches for a conventional built-in bench. Keep the storage shallow instead:

• Mount a hook rail around 60 inches above the floor.
• Use a shoe cabinet 9 to 12 inches deep.
• Run a washable runner through the traffic path.

Need a seat? A folding wall seat or small stool tucked under a shelf can give you one without permanently narrowing the passage. Before adding anything deeper, stand 2 people in the entry wearing winter coats and see how much room is actually left.

Give yourself permission to embrace your playful side

A mudroom is a good place to use the wallpaper or paint color that felt like too much for the living room. You're only in the room for a few minutes at a time, so a saturated cabinet color or patterned wall doesn't stay in your field of view all evening.

JEN Contracting Group used blue-green cabinetry and bold patterns when executing this mudroom addition in Falls Church, Virginia. Like this home did, keep wallpaper above the bench line so wet coats and boot spray don't reach it. 

Mudroom storage that holds up

Mudroom bench dimensions and build specs

These are the dimensions worth settling before the shop drawings come back:

• Set the bench 17 to 19 inches high, roughly the height of a dining chair.
• Keep the bench 15 to 18 inches deep, or 14 inches in a narrow hall.
• Give each adult 18 to 24 inches of bay width and each child 12 to 15 inches.
• Mount adult hooks 60 to 66 inches above the floor, spaced 8 to 12 inches apart.
• Add a second row of hooks at 40 to 48 inches so a 6 year old has one within reach.
• Size shoe cubbies 12 inches high and 14 inches deep so a men's boot fits.
• Build a boot tray into the bench base as a shallow metal or tiled pan with a raised lip, pitched forward and set on the finished floor.
• Specify slatted shelves for wet gear so air moves under boots and water drains to the floor.

Here's the thing that surprises a lot of homeowners: an extra few inches in each bay often matters more than squeezing in another divider. Put 4 narrow bays into 6 feet and bulky coats start overlapping almost immediately. Add backpacks and winter gear, and February gets crowded.

Open hooks or closed lockers

Picture what actually happens after school. A child walks in, hangs up a backpack, kicks shoes under the bench, and moves on. A cabinet door in front of every hook adds a step to that routine twice a day.

Closed storage is more valuable at a front entry visible from the living room or above the bench, where seasonal gear may stay untouched for months. Keep the things you use every day within reach.

Mudroom flooring that will make life easier

Porcelain tile stands up well to wet boots, road salt, grit, and dropped gear. For better traction, look for a matte or textured surface with a slip rating. Large-format tile also gives you fewer grout joints to scrub.

A herringbone or basketweave floor creates far more grout across the same square footage. Dark grout disguises staining better, but you'll still have more joints to clean. Dogs plus a gravel driveway make that difference noticeable.

Luxury vinyl plank costs about $5 to $12 per square foot installed and feels warmer underfoot. Tracked-in grit is its weak point because repeated abrasion scratches the wear layer.

Sealed concrete is another option for a garage-adjacent conversion with an existing slab. Solid hardwood, engineered wood, laminate, and cork all need more protection from repeated moisture. If you're deciding between those materials, Block's guide to durable flooring for a mudroom compares how they hold up to water, grit, and daily wear.

Bonus idea: add a drain for easy maintenance

Mudrooms are one of the few rooms where bringing water onto the floor is part of daily life. Snow melts off boots, dogs come in muddy, and grit gets pushed into corners. A floor drain gives you the option to wash the floor down instead of working around standing water with a mop.

TCI Contractors included a drain in the mudroom of this whole-home remodel in Oak Brook, Illinois. It is a small construction detail with a very practical payoff, especially in a mudroom finished with a water-tolerant floor. If you want one, bring it up before the floor assembly and plumbing layout are finalized.

Start your mudroom remodel with Block Renovation

A mudroom can pull carpentry, tile, electrical, plumbing, and structural trades into a footprint smaller than some walk-in closets. Two bids can land at a similar price and still include very different work. Block matches you with vetted contractors in your area who compete for the project, many who have worked on mudroom remodels similar to yours.

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