HyreRemodel

Remodeling services

Mudroom remodel: inside the house or built on

The two very different projects called a mudroom, the floor and door choices that make one last, and what to ask each bidder. Plan your remodel: tell us the project and a person replies.

Updated August 16, 2026

Plan Your Remodel What it costs

Written by HyreRemodel Research Desk Primary-source research and fact checking

The short answer

A mudroom remodel builds a drop zone at a secondary entry, usually from the garage or the back door: a durable floor, hooks, cubbies or lockers, a bench, and sometimes a sink or the laundry.

Carving one from an existing hall or laundry room is an interior remodel. A mudroom addition builds new floor area with a foundation, walls, roof and exterior door, and is permitted and priced as an addition.

What decides a mudroom remodel?

Inside or added on

An interior mudroom reuses space you have. An addition is a foundation-to-roof project; see home additions.

The floor takes the abuse

Water, grit and salt land here first. Tile or another water-tolerant floor, with a mat well or a drain in snowy climates.

From the garage, the door is a fire door question

The code sets requirements for the door between an attached garage and the house.

Plan your mudroom remodel

Free, with no obligation. A person at HyreRemodel replies by email. Matching with remodeling contractors is not live yet.

Does your house need a mudroom?

Signs the back entry is doing a job it was not built for.

Shoes and bags pile up in the kitchen

The family enters through the garage and has nowhere to drop things.

The floor by the back door is damaged

Wood or laminate swelling near the entry means water is getting in.

Pets come in muddy

A wash station or a hose-friendly floor solves more than shelving.

The laundry is next to the back door

Combining them is common; see laundry room remodel.

What does a mudroom remodel include?

An interior mudroom in order. An addition adds foundation, framing, roofing and exterior finish before step two.

01
Plan the traffic

Who enters, what they carry, and where each person’s things go.

02
Floor prep

Old flooring out, subfloor repaired where water reached it, then a floor that tolerates water.

03
Rough work if needed

A sink drain, outlets for chargers, lighting, and any change to the exterior or garage door.

04
Built-ins

Lockers, bench, hooks and upper storage, fastened to studs or blocking.

05
Door and trim

Exterior door weatherproofing and threshold, trim and paint.

What code applies to a mudroom?

Interior mudrooms touch few rules; additions touch all of them. These 2021 International Residential Code sections come up most. Your building department confirms editions and figures.

Door to an attached garage

Section R302.5.1 sets the type of door permitted between a garage and the house and prohibits a direct opening into a sleeping room.

Exterior door and landing

Section R311.3 requires a landing or floor on each side of exterior doors, with limits on the step down.

Additions

A built-on mudroom needs footings, energy code compliance and a building permit like any addition.

Sinks

A new sink is plumbing work with its own drain and vent, permitted in most places.

What changes the budget of a mudroom remodel?

No figures here, by policy: see what drives a remodeling budget. The lines that move a mudroom:

FactorWhy it changes the number
Interior or additionThe largest line by far: an addition adds foundation, roof, siding and windows.
Built-insOpen hooks and a bench versus enclosed lockers with doors.
FloorTile or plank, plus a floor drain or recessed mat well in snowy climates.
PlumbingA utility sink or pet wash adds a drain and vent.
DoorsA new exterior or garage-entry door, and its weatherproofing.

HyreRemodel publishes no national average price for this work. Size, finish level, whether plumbing, wiring or walls move, the age of the house and regional labor rates move it far enough that a single figure would mislead.

Can an existing space become the mudroom?

If a back hall, laundry or garage corner can take it, keep it an interior remodel and the job stays small. If nothing fits, compare an addition against reworking the garage entry before you commit to building out.

Read the home additions guide

How to compare mudroom remodel bids

Is this priced as an interior remodel or as an addition, with foundation and roof?
Which floor and which underlayment, and how is water at the door handled?
Are built-ins custom, semi-custom or stock, and are they fastened to studs?
If there is a door to the garage, does it meet the garage separation rule?
Does the price include any plumbing or electrical, and the permits for it?

Your inquiry

Tell us about the remodel

Nothing goes to a remodeling contractor unless you agree.

Free, with no obligation: a person at HyreRemodel reads your request and replies by email. Matching with remodeling contractors is not live yet, so this is not a quote, and nothing goes to a contractor unless you agree.

Plan Your Remodel

One short form: your address and how to reach you. A person at HyreRemodel reads it and replies.

Your details

We reply to every inquiry. Nothing is passed on to anyone you have not asked us to contact.

Questions

What is the best floor for a mudroom?
One that handles water and grit: porcelain tile, slate, or a rated vinyl plank. Add a large mat inside the door either way.
Do I need a permit for a mudroom?
Built-ins and new flooring usually do not need one. A mudroom addition, a new sink, or a new or relocated exterior or garage door usually does.
Can the mudroom and laundry share a room?
Often, and it is a common pairing. Plan the dryer vent route and a water-tolerant floor for both uses.
Is a mudroom addition the same as a home addition?
Yes, in permit and construction terms. It is a small addition, with a foundation, walls, a roof and energy code requirements. See home additions.
Does HyreRemodel build mudrooms?
No. HyreRemodel builds nothing, and matching with contractors is not live yet. Use this page to scope the job, or plan your remodel and a person will read it and reply.

Written and audited by

HyreRemodel Research Desk

Primary-source research, data analysis and fact checking

We are a research desk, not a remodeling contractor and not a sales floor.

We read the statute, the licensing register or the municipal fee schedule ourselves, and we publish the figure with the document it came from and the date we retrieved it.

Where a number cannot be traced to a primary source, we publish the shorter page and say what we could not verify.

This program is new, and the counts below are small: they are what we have actually published, not what we intend to.

7
studies published
7
states in the contractor store we measure against
264
source documents linked from these pages, 101 of them on .gov domains
22,183
license records measured September 5, 2026

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Authorship on this site is organizational: the analysis belongs to the desk rather than to a named individual, and we do not publish credentials we do not hold. Our editorial policy sets out how we source, date and correct what we publish.

Sources & retrieval dates

2021 International Residential Code: R302.5.1, R311.3, International Code Council. Retrieved October 22, 2026.
Permit required for a home remodel (IRC R105 summary), Jaspector. Retrieved October 22, 2026.

Information on this page is general and may vary by location, building code, zoning, the condition of your house and your own circumstances. It is not legal, design or engineering advice.

HyreRemodel is not a remodeling contractor: we do not design, build or manage remodeling work, and we do not supervise or warrant it. This page explains the work so you can judge a proposal and a contractor.