How to Find a Good Bathroom Contractor in 2026

A bathroom remodel involves licensed plumbing, tile waterproofing, electrical and finish carpentry, and each of those trades is a potential failure point if done by someone unqualified. The projects most likely to end in disputes, mold remediation or structural damage are the ones where the homeowner hired the cheapest bid without checking credentials, signed a vague contract with no milestone payments, or skipped the permit that would have required an inspector to verify the waterproofing behind the tile. None of those outcomes are difficult to avoid if you know what to look for before the work starts.

This guide covers the whole hiring process: where to find qualified candidates, what questions to ask before the first site visit, how to compare bids line by line, what a solid contract must include, and how to manage the job once it begins so the work stays on track. For help choosing the fixtures that go into the remodel, see our pillar guide to the best flushing toilets, which covers the toilet models most contractors encounter and the rough-in measurements that determine whether a new toilet drops in or requires a flange relocation.

What does a bathroom contractor actually do?

The term "bathroom contractor" covers a wide range. A general contractor (GC) takes responsibility for the whole project: they pull the permits, hire and manage the licensed subcontractors for plumbing and electrical work, and are accountable for the finished result. A tile contractor specializes in setting, grouting and waterproofing tile surfaces but typically does not touch the plumbing. A plumber handles the rough-in and fixture connections but not the finish work. For a full bathroom remodel, you generally need a GC who coordinates the trades, unless the scope is very narrow, such as a toilet swap or a faucet replacement, in which case a licensed plumber alone is the right hire.

Understanding who is responsible for what matters because it determines who you hold accountable when something goes wrong. If you hire a tile setter directly and the shower pan leaks because the plumber ran the drain improperly, you may end up in a dispute between two separate contractors about whose fault it is. A GC who took full responsibility for the project absorbs that coordination and gives you a single point of contact.

How do you verify a contractor's license and insurance?

Every state maintains a searchable online database of licensed contractors, and the search takes two minutes. Type the contractor's name or license number, confirm the license is in good standing, check the expiration date, and look for any complaint history or disciplinary actions. A contractor who says their license is "in process" or "renewal pending" is unlicensed for the period of the work; do not hire them until it resolves.

Insurance is equally non-negotiable. General liability insurance covers damage to your property caused by the contractor's work, such as a burst pipe or a cracked tile. Workers' compensation covers injuries to the contractor's employees on your property. Without workers' compensation, an injured worker can potentially make a claim against your homeowner's policy. Ask for a certificate of insurance (COI), which is a one-page summary the contractor's insurer provides on request, and verify the coverage amounts. A minimum of one million dollars in general liability is reasonable for bathroom remodels; requirements vary by state and project scope.

Where should you find bathroom contractor candidates?

Personal referrals from someone who recently had a comparable bathroom remodel done are worth more than any review platform, because the person can show you the finished work, describe how the contractor managed problems, and tell you whether the final cost matched the bid. Ask specifically for bathroom remodels, not kitchen renovations or general handyman work, because the waterproofing and plumbing requirements of a bathroom are different from dry-area finish work.

Local plumbing supply houses are an underused source. Contractors who buy materials from supply houses are typically licensed professionals working at enough volume to maintain a trade account, which filters out casual handymen. The counter staff often know which contractors have a reputation for quality work and which ones return materials constantly because jobs went wrong. A two-minute conversation with a supply house employee can yield better referrals than hours on review platforms.

The National Kitchen and Bath Association (NKBA) maintains a directory of certified designers and contractors who meet training and experience requirements. Houzz's "Pro" listings include contractor profiles with verified project photos and reviews. Angi (formerly Angie's List) provides pre-screened contractors, though the screening depth varies by market. Regardless of the source, independently verify the license and insurance before proceeding.

How do you compare bathroom contractor bids?

Get a minimum of three bids for any bathroom remodel. Three bids give you a market sense of fair pricing and let you spot outliers in both directions: the bid that is 40 percent lower than the others is rarely a bargain; it usually signals that the contractor plans to cut scope, substitute inferior materials, or add change orders once the job is underway. The bid that is 30 percent higher than the others should be explained by superior materials, a faster timeline, or a more complete scope.

Require each bid to be itemized by task and trade. The bid should separate demolition, plumbing rough-in, plumbing finish (fixture installation), tile waterproofing membrane, tile setting and grouting, electrical, drywall, painting, fixture allowances and permits as individual line items. If a contractor will not provide an itemized bid, the reason is usually that they do not want you to see where the margin is concentrated or where they plan to substitute. Itemized bids also make change orders transparent: when the scope changes, you can price the change against the same line-item structure.

Pay close attention to the allowances. An allowance is a placeholder amount for materials the contractor has not yet specified, such as the tile, the toilet, the vanity or the faucet. A low allowance that does not cover the materials you actually want is a common way a cheap bid becomes expensive: the contractor wins the job with a low number, then charges an "upgrade" when you choose real tile instead of the builder-grade material the allowance covered. Specify the fixtures before bidding and require bidders to price against the same fixture list. For the toilet, specify a model like the TOTO Drake II or Kohler Cimarron with a known retail price; for the vanity and faucet, do the same. A bathroom remodel cost guide can help you set realistic allowances for each category before you ask for bids.

What should a bathroom contractor contract include?

The contract is the document you rely on when the job goes sideways, and a vague contract is nearly worthless in a dispute. The scope of work must be specific enough that both parties can point to it and agree on whether something is complete. "Install new shower tile" is vague; "install 45 square feet of 12x24 porcelain tile on shower walls to full height, including waterproofing membrane over cement board per manufacturer specifications, with matching grout in color X" is a scope. Any scope not explicitly included in the contract is a change order and can be charged extra.

The payment schedule is the most important financial protection you have. A legitimate contractor does not need a large upfront payment to fund the job; they have credit with suppliers and float the materials until they receive the first draw. A reasonable payment structure for a bathroom remodel is 10 to 20 percent at contract signing to cover mobilization, a second draw at a defined milestone such as rough-in inspection passed, a third draw at tile set and grouted, and the final payment, which should be at least 10 percent of the contract total, held until the punch list is complete and you have confirmed no leaks. Paying 50 percent or more upfront gives you no leverage to ensure the job is finished correctly.

The change-order clause must require written authorization from you before any additional work begins. Verbal agreements about additions to scope are the source of most contractor disputes. If the contractor discovers something unexpected during demolition, such as a rotted subfloor or an out-of-code vent, that is a legitimate change order, but you must see it in writing, agree on the price and sign before the additional work proceeds. A contractor who says "I'll add it to the final bill" without a written change order is operating outside the contract.

Require a lien waiver from the contractor and any major subcontractors before you make the final payment. A mechanic's lien is a legal claim a contractor or supplier can file against your property if they are not paid, even if you paid the general contractor and they failed to pay their subs. A lien waiver is a signed statement that the contractor waives the right to file a lien in exchange for payment. Getting lien waivers protects your title and prevents a situation where you pay twice for the same work.

What are the biggest red flags when hiring a bathroom contractor?

Contractors who ask for large upfront payments, typically 30 to 50 percent or more of the contract total, are either cash-flow impaired (meaning they cannot fund a job without your deposit, which signals financial instability) or intend to take the money and do minimum work before asking for the next draw. The deposit is meant to cover mobilization, not materials for the whole job. A contractor with good credit at the supply house does not need your money to buy the tile.

Permit avoidance is one of the clearest signals of an unqualified contractor. Bathroom plumbing and electrical work requires a permit in virtually every jurisdiction, and the permit triggers inspections at key stages of the work. A contractor who says permits are not needed for your scope is almost certainly wrong and is avoiding the inspection because they are not confident the work will pass. Work done without a permit can cause insurance claim denials, problems when you sell the home, and the cost of tearing out finished work so an inspector can verify the hidden plumbing and electrical.

Watch for contractors who cannot provide bathroom-specific references with contact information you can actually call. Generic references ("I can get you some names") or references who do not answer or who give vague answers about the work are not useful. Ask for two or three past bathroom clients who will let you visit the finished job and speak about the experience. A contractor with a strong track record of bathroom remodels has clients willing to show the work.

Other significant red flags include: no physical address or business address (a post office box only), no online presence or reviews, significant pressure to sign immediately or lose the offer, a contract with no termination clause, and requiring you to purchase materials directly in a way that makes it unclear who is responsible for material defects. Also be wary of contractors who are unusually vague about their subcontractors, since the plumber and electrician they use are often where quality is won or lost on a bathroom job.

How do permits protect you in a bathroom remodel?

Most bathroom remodels require at least a building permit, and any work that moves or replaces plumbing requires a separate plumbing permit with a rough-in inspection. Electrical work typically requires an electrical permit. The permits trigger inspections at defined stages, usually before walls are closed, so an inspector can verify that the waterproofing membrane is continuous, the drain is correctly sloped, the vent stack is properly connected, and the electrical circuits meet code. These are things you cannot check yourself once the tile goes up.

The contractor, not the homeowner, should be the permit holder. If a contractor asks you to pull the permit in your own name, decline. A homeowner-pulled permit means you take legal responsibility for the work meeting code, even if a contractor performs it. If the work fails inspection or causes damage, the liability is yours. A licensed contractor pulls permits in their own name because they are certifying that they will perform the work and that they are responsible for it meeting code.

How to manage a bathroom contractor once the job starts

Signing a contract and handing over a deposit does not mean the work will go smoothly without involvement on your end. Active but reasonable oversight is the difference between a project that finishes well and one that drifts. The key is knowing what to check and when, without micromanaging the tradespeople doing skilled work.

Review the rough-in before tile goes up

The rough-in phase, when the plumbing drain lines, vent connections and supply lines are set before walls are closed, is the most important stage to review. Ask the contractor to walk you through the rough-in before the waterproofing and tile begin. Confirm the toilet flange is at the correct height for the finished floor (typically flush with or slightly above the finished floor surface, not recessed into it), that the shower drain is correctly centered, and that the supply shut-offs are accessible. If your jurisdiction requires a rough-in plumbing inspection, confirm it has passed before agreeing to the next payment draw.

For the toilet specifically, confirm the rough-in distance matches the toilet model you selected. Most residential bathrooms have a 12-inch rough-in, but some older homes have 10 or 14 inches, and ordering the wrong toilet variant forces a flange relocation that adds significant labor cost. Our guide to how to measure your toilet rough-in covers this in detail.

Check the waterproofing before tile is set

Shower waterproofing failure is the most common cause of bathroom water damage, and it is invisible once the tile is set. The most reliable approach is a shower pan liner or a continuous liquid-applied membrane (such as Schluter Kerdi, WEDI or RedGard) that runs up the walls and over the curb. Before tile is set, ask the contractor to show you the membrane and confirm it covers the full shower floor, laps up the walls at least 6 inches, and runs continuously over the curb without gaps. Some contractors skip the membrane or apply it inconsistently in the corners, where failures almost always begin.

Use the milestone payment schedule as quality gates

Release each payment draw only after the milestone is verifiably complete. The rough-in draw is released after rough-in inspection passes. The tile draw is released after tile is set, grouted and the contractor has confirmed no hollow-sounding tiles. The fixture installation draw is released after all fixtures are installed and functioning, the toilet flushes without running, the faucet does not drip, and the shower pan holds water for the flood test. The final payment is released after the punch list is complete and you have run water through every fixture for long enough to detect leaks. Do not release the final payment to move on quickly; it is your primary leverage to ensure every item on the punch list is addressed.

Document everything in writing

Send a brief email confirming any verbal agreement, change or decision made on site. Something as simple as "confirming our conversation today: we agreed to substitute the Woodbridge T-0001 toilet for the TOTO Drake at the same allowance amount, no change to the contract price" creates a written record that protects both parties. Change orders must be signed before work proceeds, but a follow-up email confirming the discussion is a useful supplement. Keep all receipts, change orders and inspection records together, and photograph each phase of the work before it is covered.

What questions should you ask a bathroom contractor before hiring?

The questions you ask before hiring are a calibration tool. A confident, qualified contractor answers licensing and insurance questions without hesitation, explains their process clearly, and does not pressure you to decide quickly. A contractor who deflects, becomes defensive about licenses, or can't explain their waterproofing process is telling you something important.

Ask specifically: Are you licensed for plumbing and general contracting in this state, and can I verify the license number now? Who are the licensed plumbers and electricians you use as subcontractors, and are they licensed independently? Will you pull all required permits, and will the permit be in your name? How do you waterproof a shower pan and walls, and what membrane product do you use? What is your payment schedule, and do you require more than 20 percent at signing? Can you provide three references from bathroom remodels of similar scope completed in the past 18 months?

The answers to those questions tell you more than any online review. A contractor who cannot name the waterproofing membrane they use is not doing it correctly. A contractor who requires 40 percent upfront is a cash-flow risk. A contractor who says the electrician is "whoever I can get" does not have a reliable subcontractor relationship. Compare the answers across your three candidates and weight substance over presentation; the contractor who gives straightforward answers to difficult questions is more reliable than the one with the glossiest proposal.

Also ask about the toilet installation process specifically. A good contractor will describe the wax ring replacement, the flange inspection, and the process for confirming the rough-in before ordering the toilet. If they cannot describe toilet installation in basic terms, that is a signal about the depth of their plumbing knowledge.

How do you handle disputes with a bathroom contractor?

The most effective dispute prevention is a clear contract with itemized scope and milestone payments, because disputes almost always arise from ambiguity about what was included and from payment leverage evaporating because too much was paid too early. If a dispute does arise despite a clear contract, start with a written communication to the contractor that describes the issue specifically, references the contract clause that applies, and states what resolution you expect and by what date.

Most contractor disputes are resolved at this stage, because a written demand letter from a homeowner who clearly understands the contract terms is often enough to prompt the correction. If the contractor does not respond or the resolution is unacceptable, the next step depends on the contract's dispute resolution clause. Many contractor contracts now require mediation before litigation, which is faster and cheaper than a lawsuit and resolves most disputes. If the contract specifies arbitration, the process is similar but binding.

For disputes involving licensed contractors, filing a complaint with your state's contractor licensing board is an effective escalation. Boards take complaints seriously because license suspension is a significant consequence for a contractor's livelihood. Document the complaint with photos, the contract, the change orders, and all written communications. The board's investigation can result in the contractor being required to make repairs, pay restitution, or face license suspension.

Small claims court is available for disputes below your state's dollar threshold, typically $5,000 to $10,000, and does not require an attorney. For larger disputes, consult a construction attorney before proceeding, because construction law involves specific timing rules for filing claims that vary by state.