What to look for when you have multiple estimates — scope differences, exclusions, allowances, and the red flags that signal a problem before work starts.
You can't compare bathroom estimates by the number at the bottom — you compare them by what's actually inside. Check that every bid covers the same scope, look for line items instead of one lump sum, read the allowances (the classic low-bid trick), find what's excluded, and verify the license, insurance, and payment terms. In California, a down payment over $1,000 or 10% — whichever is less — is illegal, which is a fast way to spot a contractor who doesn't follow rules.
Here's the uncomfortable truth about collecting three bids: you almost never get three prices for the same project. You get three different projects wearing the same bathroom.
One bid includes a full waterproofing membrane; one says "cement board" and hopes you don't ask. One includes glass; another lists it as "by owner." One prices real tile work; another assumes the cheapest surround that technically counts. The bottom-line numbers differ by $15,000 and homeowners think they're comparing prices. They're comparing scopes.
So before comparing dollars, line the bids up side by side and ask of each one: what exactly happens to my shower walls, my floor, my plumbing, my electrical — and who supplies each thing?
A serious estimate is itemized: demolition and haul-away, plumbing rough-in, waterproofing system (named, not implied), wall finish, floor, vanity and top, fixtures, glass, electrical, paint, permits. When you can see the parts, you can compare the parts — and you can see what's missing.
A one-number, one-page quote isn't automatically dishonest, but it makes honest comparison impossible, and it makes later disputes inevitable. "I assumed that was included" is the most expensive sentence in remodeling. If a contractor won't itemize, that tells you how the rest of the project will communicate, too.
An allowance is a budget placeholder for things you haven't picked yet: "tile allowance $500, fixture allowance $400." The estimate looks complete. The number looks great.
Then you go pick actual tile and actual fixtures, discover the allowances cover roughly none of what you like, and the difference lands on you as change orders — after your bathroom is already demolished. The low bid didn't win because it was cheaper. It won because it was less honest about what you'd really spend.
The fix is simple: ask every bidder, "are these allowances based on what your clients actually spend?" and compare allowance amounts between bids the same way you compare the totals.
The most expensive parts of a cheap bid are the missing lines. Go looking for these specifically:
Every one of those is a real cost that exists whether or not it's on the paper. If it's not on the paper, you're paying for it later — you just don't know it yet.
California law caps a home-improvement down payment at $1,000 or 10% of the contract price, whichever is less. That's not my policy — it's the state's. A contractor asking for 30–50% up front is either ignorant of the law that governs their license or counting on you being.
What fair looks like: a small deposit to schedule, then milestone payments tied to completed stages — demo done, rough inspection passed, tile complete, final walkthrough. Money follows work, never the other way around. And the final payment should sit with you until the punch list is finished, because it's the only leverage you have left.
Every California contractor's license can be checked at the CSLB website in about a minute — status, bond, and workers' comp coverage. Do it for every bidder, including us (we're #1113488, and I'd rather you check than take my word).
Workers' comp matters more than people realize: if an uninsured worker gets hurt in your home, that can become your problem. And ask who actually performs the work — the person quoting you, their own crew, or whichever subcontractor is available that week. You're hiring the people who show up, not the person with the clipboard.
After everything above, do this final exercise: take the low bid, mentally add realistic allowances, the missing glass, the haul-away, the permit, and one hidden-condition change order — and see where it lands. In my experience it lands at or above the honest bid, except now you've paid it to the contractor who was willing to hide it from you at the start.
The estimate phase is a free preview of the whole project. The contractor who is transparent, specific, and unpressured now is who they'll be with your walls open. So is the other one.
Two or three from contractors you'd genuinely hire. Ten bids don't produce more clarity — they produce noise, and the process becomes about price alone, which is how the least honest scope wins.
No — price alone proves nothing in either direction. The safest bid is the most transparent one: itemized scope, realistic allowances, named waterproofing, legal payment terms, and verifiable license and insurance.
You can, but the productive version is negotiating scope, not squeezing labor: simpler tile, standard glass, phasing the vanity for later. A contractor who instantly drops 20% without changing scope has just told you the first number was padded.
Something is missing — waterproofing, glass, permits, insurance overhead, or the intention to make it up on change orders. Ask the low bidder to walk you through their scope line by line. The gap will explain itself quickly.
For standard bathroom work in our area, the visit and written estimate should be free. Paid design consultations exist legitimately for large custom projects, but paying just to learn a price for a normal remodel isn't the local norm.
