A bathroom remodel can go wrong in a dozen ways before the first tile is ever set. Most of those failures trace back to decisions made — or skipped — in the weeks before demolition begins. This checklist walks you through every preparation step in the order it should happen, from defining what you actually want to knowing what to expect when your contractor is on the job.

This is not a general overview of the remodeling process. If you want a full explanation of how a bathroom remodel unfolds from start to finish, the bathroom remodeling guide covers that in depth. And if you want to understand what a remodel should cost before you commit to a budget, read the bathroom remodel cost guide first. This article is the pre-construction checklist — concrete, sequential, and designed to keep you from making the decisions that cost people the most money, time, and aggravation.

Work through it in order. Each phase builds on the one before it, and skipping ahead almost always means backtracking.

Phase 1: Vision and Planning

The planning phase is where most remodels go off-track — not because homeowners don't think about it, but because they think about the wrong things first. Before you look at a single tile sample or call a single contractor, you need to understand your own bathroom and your own priorities clearly.

Define Your Must-Haves Versus Nice-to-Haves

This sounds simple. It isn't. Homeowners who skip this step spend money chasing aesthetics while ignoring the functional problems that drove them to remodel in the first place. You can end up with a beautiful shower that still has inadequate storage, or a stunning vanity in a bathroom where the lighting still makes every task harder than it should be.

Your must-have list should anchor every decision that follows. When a contractor presents an option that addresses a nice-to-have but blows the contingency budget, you have a clear answer.

Also be honest about lifestyle. A frameless glass shower enclosure looks exceptional, but if you have three kids under ten, you may be cleaning water spots off that glass every other day. A curbless shower drain is a practical upgrade for anyone planning to stay in the home long-term and age in place. These priorities belong on your list before you get excited about finishes.

Measure and Document Your Existing Bathroom

A scaled sketch — even hand-drawn on graph paper — is worth more than a thousand inspiration photos when you're getting contractor quotes. It lets every contractor work from the same physical reality, which makes bids comparable and prevents misunderstandings about scope.

The plumbing rough-in measurements matter more than most homeowners realize. The toilet rough-in distance (measured from the finished wall to the center of the drain) is almost always 12 inches in standard construction, but older homes sometimes have 10-inch or 14-inch rough-ins. A standard toilet will not fit a non-standard rough-in without plumbing work. Discovering this after you've purchased a toilet is an avoidable problem.

Decide: Cosmetic Update, Partial Remodel, or Full Gut?

These three scenarios require very different budgets, timelines, and contractor expertise:

Cosmetic update. New tile over sound substrate, updated fixtures in existing locations, fresh paint, new hardware. This is the most affordable path and appropriate when the bones of the bathroom are in good shape. A cosmetic update does not require moving plumbing or opening walls.

Partial remodel. Replacing the shower while keeping the vanity and toilet in place, or updating the floor and fixtures without touching the shower. Partial remodels are practical when only part of the bathroom has reached the end of its useful life.

Full gut renovation. Everything comes out down to the studs and subfloor. This is appropriate when there's water damage behind existing tile, when the layout needs to change, or when the bathroom's finishes are so dated or deteriorated that a partial update wouldn't make a meaningful improvement. Full guts take longer, cost more, and give you the most flexibility — including the ability to add waterproofing that wasn't there before.

Research Tile Styles, Fixture Finishes, and Layouts

Mixing fixture finishes — brushed nickel at the sink, matte black at the shower, polished chrome on the toilet paper holder — is one of the most common and avoidable design mistakes. Decide on a finish family before you buy anything.

The tile research step is where many homeowners get lost. There are more tile options than ever, and the variation in performance between them is significant. The guide to choosing the best tile for your bathroom covers selection criteria by zone — shower walls, shower floors, bathroom floors — in detail. Use it before you go shopping.

Understand What's Structural Versus What's Flexible

Structural elements require engineering and permits to modify. Plumbing drain locations can be moved, but moving them adds significant cost because it requires access from below the floor or above the ceiling of the room below. Drain relocations that are "only a few inches" can still involve cutting the subfloor and rerouting drain lines — a half-day job at minimum.

Understanding these constraints before you finalize your design prevents the painful conversation where you've fallen in love with a layout that would cost twice your budget to execute.

Phase 2: Budget

A budget without a contingency is a wish. A budget with a contingency is a plan. Set yours before you talk to a single contractor.

Set a Realistic Budget with a 15–20% Contingency

The contingency is not a slush fund for upgrades you forgot to budget. It's there for the things that are genuinely unknowable until the walls are open: rotted blocking behind a shower, inadequate waterproofing on an adjacent wall, subfloor damage from a slow leak, outdated wiring that needs to be brought to current code before you can add a new electrical circuit for a heated floor.

These discoveries are not the contractor's fault, and they're not avoidable. Water damage is often invisible until demo begins. Budgeting for it in advance keeps the project moving without emergency decisions made under pressure.

Prioritize Waterproofing, Substrate, and Labor Quality Before Aesthetics

The materials that fail a bathroom remodel are almost always the materials you can't see once the tile is up. A shower built on the right substrate with a quality waterproofing system and properly installed tile will last twenty-five years. The same tile over inadequate waterproofing on the wrong substrate will fail in three to seven — and the repair will cost more than the original job.

Spend on the layer beneath the tile before you spend on the tile itself. If you're choosing between a tile upgrade and a waterproofing upgrade, choose the waterproofing every time.

Get Three Quotes and Understand What Each Includes

Getting three quotes does two things: it gives you a realistic price range, and it reveals what each contractor considers standard practice. A quote that's 30% lower than the others warrants hard questions — not celebration. Ask the low bidder exactly what they're not including.

Pay particular attention to how each contractor answers the waterproofing question. A contractor who says "we use RedGard" or "we use a Schluter Kerdi system" understands that waterproofing is a deliberate choice. A contractor who says "we do it the right way" without specifics may be planning to use painted-on membrane over standard drywall — which is not adequate for a shower.

Decide on Allowances Versus Owner-Supplied Materials

Many contractors include a material allowance in their bid — a per-square-foot figure for tile, a dollar amount for fixtures — and anything you select above that allowance is a change order. This system works if the allowance is realistic and both parties understand it clearly from the start.

Owner-supplied materials save money on markup but shift responsibility. If you order your own tile and it arrives with batch dye-lot variation, the delay and cost of reordering is yours to manage. If you supply the vanity and it arrives damaged, the project may sit while you wait for a replacement. Factor the coordination time and risk into your decision.

Phase 3: Permits and Approvals

Permits are the most commonly skipped step in residential bathroom remodels, and the consequences range from annoying to serious. Know what's required before work begins.

Determine Whether a Permit Is Required

Permits protect you. An inspector who reviews the rough plumbing and electrical before walls close is a check on mistakes — yours, your contractor's, and anyone who worked on the house before you. Permitted work is also documented, which matters when you sell the home. Buyers' inspectors specifically look for evidence of unpermitted renovations, and discoveries at closing can delay or kill a sale.

Know What Triggers a Permit

One frequently misunderstood trigger: adding a dedicated circuit for a heated floor or a steam generator requires an electrical permit even if you're not moving any other electrical elements. The permit is for the new circuit, not just for moving existing wiring.

HOA Approvals If Applicable

HOA restrictions are rare for interior bathroom work, but some communities have rules about exterior changes that could affect a bathroom remodel (window replacement, exterior venting for a new exhaust fan, etc.). Check first.

Phase 4: Selecting Materials

Material selection should be complete — not just started — before demolition begins. Lead times on tile, specialty fixtures, and custom vanities can stretch weeks, and a project sitting in demo because materials haven't arrived is expensive and avoidable.

Tile Selection

The guide to the best tile for bathrooms covers every selection criterion in detail — absorption rates, COF standards, PEI ratings, grout joint sizing, and what to avoid by zone. If you haven't read it, do that before you go to a tile showroom.

One practical note: tile that looks identical in a showroom can vary significantly from batch to batch in color and shade. If your project spans multiple rooms or requires a reorder, matching tile from a different production run is difficult and sometimes impossible. Order enough on the first order.

Fixture Selection

Shower valve selection deserves special attention. Thermostatic valves (which maintain a set temperature regardless of pressure changes elsewhere in the house) require a different rough-in than pressure-balancing valves. The valve body must be installed before tile goes on the wall, and the trim kit installs after. If you decide to upgrade your valve after the tile is already set, the wall has to open again. Make this decision early.

Grout Selection

Grout color has a bigger impact on the final look of a tile installation than most homeowners expect. A white tile with white grout reads as seamless and expansive. The same white tile with charcoal grout reads as a grid pattern. Neither is wrong, but they produce very different results. Look at physical samples of your tile with different grout colors before committing.

Glass Enclosure or Shower Curtain

The decision between glass and curtain affects the tile installation. A shower pan with a curb is designed for either; a curbless (barrier-free) shower is almost always designed for a glass enclosure, since a curtain can't seal a curbless entry effectively. Make this decision before tile layout begins.

Frameless glass is measured and ordered after tile is complete, because the glass is fabricated to the exact dimensions of the finished opening. Plan for a one-to-three week lead time between tile completion and glass installation.

Lighting Plan

Good bathroom lighting is consistently underestimated in renovation planning. The most common complaint in newly remodeled bathrooms isn't the tile — it's lighting that makes the space feel dark or makes the vanity unusable for detailed tasks. Plan this with the same intentionality you apply to the tile and fixtures.

Phase 5: Hiring a Contractor

Choosing the right contractor is the single decision that determines whether everything else on this checklist pays off. A skilled installer working from a well-defined scope will deliver a bathroom that performs and looks right for decades. The wrong contractor, given the same materials and the same plan, will cut the corners you can't see — and you won't know until the damage shows up years later.

The guide to choosing a tile contractor covers this process in full. These are the non-negotiable checkpoints.

Verify License and Insurance

In South Carolina, residential contractor licensing is managed through the South Carolina Contractors' Licensing Board. In North Carolina, the North Carolina Licensing Board for General Contractors handles licensing. Both have online verification portals where you can confirm an active license in under two minutes.

An unlicensed contractor may be a skilled craftsman, but they have no regulatory accountability. They may not carry insurance, which means a liability claim from a worker injury could come to you. And their work is not subject to any permitting process, which means no inspections.

Get a Written Contract with Scope, Timeline, and Payment Schedule

Never pay more than 30–40% upfront. A contractor who requires 50% or more before work begins is asking you to fund their next job, not yours. Standard practice is a deposit sufficient to cover material ordering, with progress payments tied to verified completion of defined phases.

Confirm Who Pulls Permits

When the contractor pulls the permit, they are on record as responsible for the work. When a homeowner pulls a permit for work that a contractor performs, the homeowner assumes that liability. Always let the licensed contractor pull permits for work they're performing.

Phase 6: Preparing Your Home

The two weeks before your project start date are as important as the planning phase. A jobsite that isn't ready on day one costs time — your contractor's and yours.

Protect Adjacent Spaces from Dust and Debris

Ceramic and porcelain tile demo produces a significant amount of dust, particularly when floor tile is cut with an angle grinder. The dust is fine enough to settle on surfaces two rooms away. Containment done before demo begins is always easier than cleanup done after.

Clear Out the Bathroom and Adjacent Storage

Leave the bathroom completely clear on demo day. Every item that's still in the room when the crew arrives is something they have to work around or move, which adds time and creates liability if anything is damaged.

Establish an Alternate Bathroom Plan

This is one of the most overlooked logistics items in single-bathroom homes. If the only toilet in the house is out of service, that's a hotel or neighbor arrangement, not an inconvenience. Confirm your alternate plan before demo day, not the morning of.

Arrange Material Delivery and Storage

Large format tile (24x24 and larger) is particularly susceptible to damage in transit. Boxes that show forklift damage or corner impacts should be opened and inspected immediately. Damaged tile that isn't caught until it's being set is a problem that slows the project.

Phase 7: During the Remodel

Even a well-prepared project requires active management once work begins. Knowing what to expect at each phase, and how to communicate effectively with your contractor, prevents small issues from becoming expensive ones.

What to Expect During Demo Week

Demo is loud, dusty, and often reveals surprises. In most full bathroom remodels, the first three to five days involve:

It is completely normal to discover issues during demo that weren't visible from the surface. A previous owner's inadequate waterproofing, rotted blocking around a shower niche, subfloor damage from a slow leak around the toilet flange — these are common and not a sign that your contractor gave you a bad estimate. This is what the contingency is for.

Do not be alarmed by the state of the room at the end of demo day. A gutted bathroom looks catastrophic. That is what a fresh start looks like.

When to Inspect Waterproofing Before Tile

This is the most important inspection point in a bathroom remodel. Once tile is on the wall, the waterproofing is invisible. A problem with the membrane that isn't caught now will not show itself until water has already penetrated the wall — often years later, when the damage is extensive.

You do not need to be a waterproofing expert to do this inspection. You need to be present, to look at the membrane with your own eyes, and to ask your contractor to explain what you're looking at. Any contractor who objects to this inspection or discourages it is a contractor you should be concerned about.

How to Communicate with Your Contractor

Direct communication with subcontractors creates confusion about who authorized what, which creates disputes about cost. If a plumber is on site and you want to move a supply line two inches to the left, tell your primary contractor — not the plumber — and get the cost in writing before the work is done.

Clear communication does not mean constant hovering. A contractor who is fielding questions every hour is a contractor who is working slower. Set a check-in rhythm that keeps you informed without disrupting the crew's workflow.

Change Order Protocol

Change orders are not a sign that a project is going wrong. They are the normal mechanism for handling scope changes and unforeseen conditions. The problem is not change orders — it's undocumented changes that both parties remember differently.

Review each change order before signing it. Understand what work it authorizes and what it costs. If you don't understand it, ask for clarification before signing.

Final Pre-Demo Checklist: The Day Before Work Begins

Before your contractor arrives on demo day, confirm the following:

If any item on this list is unresolved, push the start date. A one-day delay to get organized is far less costly than a mid-project problem caused by inadequate preparation.

Frequently Asked Questions

How far in advance should I start planning a bathroom remodel?

For a standard bathroom remodel, begin the planning process three to four months before your target start date. This gives you time to define scope, get quotes, select materials with appropriate lead times, and schedule with a contractor whose calendar is already partially booked. Tile and specialty fixtures from distributors can have two-to-six-week lead times. Waiting until the last minute to order forces timeline compromises.

Do I need a permit to replace my shower tile?

Replacing tile in the same location without moving plumbing or electrical — an in-kind replacement — typically does not require a permit in Greenville, SC or Charlotte, NC. However, if your tile replacement involves opening the wall and the contractor discovers plumbing or electrical issues that need to be corrected, those corrections may require a permit. Your licensed contractor can advise on what's required for your specific scope.

What's the difference between a cosmetic remodel and a full gut renovation?

A cosmetic remodel replaces surface finishes (tile, fixtures, paint, hardware) without opening walls or moving plumbing and electrical. A full gut renovation removes everything down to the studs and subfloor, allowing a complete reconfiguration of the space and replacement of any substrate, waterproofing, plumbing, or electrical that doesn't meet current standards. The cost difference between the two is significant — generally two to three times more for a gut renovation — but a gut renovation is the only way to properly address water damage, reconfigure a layout, or install waterproofing that wasn't there before.

How do I know if my existing shower has a waterproofing problem?

Common signs include: grout or caulk that won't stay clean despite regular maintenance; tile that feels soft or moves slightly when pressed; mildew smell in the bathroom even after thorough cleaning; discoloration or soft spots on the ceiling of the room below a second-floor bathroom; or visible water stains on an adjacent wall. These signs do not always mean the waterproofing has failed catastrophically, but they warrant investigation before additional cosmetic work is done on top of a compromised system.

Can I save money by supplying my own tile and fixtures?

Yes, but with trade-offs. Purchasing tile and fixtures yourself eliminates the contractor's markup on materials, which can be meaningful on higher-end selections. The trade-offs are: you assume responsibility for accurate quantities, correct specifications, and timely delivery; damage in transit is your problem to resolve; and if something is back-ordered, your project waits. Owner-supplied materials work best when the homeowner is organized, has confirmed lead times in writing, and understands the specifications (rough-in dimensions, installation requirements) well enough to order the right product.

What should a payment schedule look like for a bathroom remodel?

A standard payment schedule ties payments to project milestones rather than dates. A typical structure: 25–35% deposit to secure the schedule and cover initial material orders; a draw payment at completion of demo and rough-in; a draw payment at completion of tile installation; and a final payment at project completion and walkthrough. Never pay more than 35–40% upfront. Contractors who require more than that before meaningful work has begun are a red flag.

How do I verify that a contractor is licensed in South Carolina or North Carolina?

In South Carolina, verify contractor licenses at the South Carolina Contractors' Licensing Board website. In North Carolina, use the North Carolina Licensing Board for General Contractors' online license search. Both systems allow you to look up a contractor by name or license number and confirm the license is current and in good standing. This takes less than five minutes and is one of the most important steps you can take before signing a contract.

What happens if the contractor finds water damage during demo?

Water damage discovered during demo is handled as a change order — the contractor documents the extent of the damage, provides a written estimate for the additional work (typically removal of affected material, drying, treatment, and reconstruction of affected framing or substrate), and you authorize the work before it proceeds. This is exactly what the contingency budget is for. Do not authorize verbal agreements to "take care of it" without a written estimate attached.

Is it worth upgrading to a thermostatic shower valve?

For most homeowners who intend to stay in their home long-term, yes. A thermostatic valve maintains a set water temperature regardless of pressure fluctuations elsewhere in the house — someone flushing a toilet doesn't spike your shower temperature. It also allows you to pre-set your preferred temperature and turn the shower on without standing in the spray while it warms up. The rough-in cost difference during a remodel is modest; retrofitting one later requires reopening the wall.

How much tile should I order over the measured square footage?

Order 10–15% more than your calculated square footage for standard rectangular tile in a straight-lay pattern. Order 15–20% more for diagonal patterns, herringbone, or other patterns that require more cuts. Order extra beyond that if your tile is from a natural material (stone or handmade ceramic) where color variation between batches is expected and future matching may be difficult. Tile left over from the original job is worth keeping — it's the exact dye lot match for future repairs.

What is the most common mistake homeowners make when planning a bathroom remodel?

Selecting tile and finishes before defining a budget. This leads to falling in love with materials that exceed the budget for the overall project, then cutting corners elsewhere — often on labor or waterproofing — to afford the aesthetic choices. The correct sequence is: define scope, set budget, prioritize, then select materials within the budget you've established for each category. The guide to avoiding bathroom remodeling mistakes covers the full list of common errors and how to prevent them.

How long should a bathroom remodel take?

A typical full bathroom remodel in a single bathroom takes two to four weeks from demo to final walkthrough. Projects that involve significant plumbing relocation, custom tile work, or specialty materials with longer lead times can run five to six weeks. The timeline varies more based on contractor scheduling and material lead times than on the actual installation work. The bathroom remodel timeline guide breaks down what happens in each phase and where delays most commonly occur.

Should I plan to vacate the bathroom during the remodel or can I still use parts of it?

For a full gut renovation, the bathroom will be completely unusable from demo day until at least the final week of the project. Plan to have no access. For a partial remodel — for example, replacing the shower while leaving the toilet and vanity in place — the contractor may be able to restore toilet access within the first few days. Confirm the specific sequence with your contractor before work begins so you can make practical arrangements.

How do I know when a job is truly complete versus when a contractor is trying to wrap up and leave?

Before final payment, walk through the space systematically and verify: grout joints are consistent and fully filled with no voids; caulk at corners, transitions, and fixture penetrations is smooth and complete; tile is plumb and level with consistent lippage (no tile edge raised more than 1/32 inch above adjacent tile in wet areas); all fixtures are fully seated and functional; cleanup is complete and all construction debris is removed. Document any punchlist items in writing, share them with your contractor, and hold the final payment until all items are resolved.

Work with VT TILE LLC

VT TILE LLC is a licensed and insured tile installation and remodeling contractor serving Greenville, SC and the surrounding upstate South Carolina area, as well as Charlotte, NC and the greater Charlotte region. Our work includes custom tile showers, full bathroom remodels, kitchen backsplashes, tile floors, and fireplace surrounds.

If you're in the planning phase of a bathroom remodel, we're glad to walk through the scope with you, answer questions about materials and methods, and provide a detailed written quote. Contact us to schedule a consultation.

Related guides: Bathroom Remodeling Guide | Bathroom Remodel Cost Guide | Bathroom Remodel Timeline | Best Tile for Bathrooms | How to Choose a Tile Contractor | Common Bathroom Remodeling Mistakes