Comparing Bids, Knowing When to Walk, and Learning from Actuals

A Lower Bid Is a Scope Question, Not a Price Question

When a homeowner tells you another contractor came in lower on the same hall bathroom, your first move is never to cut your number. Your first move is to get a copy of the competing scope, or at minimum ask the homeowner to read you the line items. In a gut-and-redo hall bath, the gaps almost always hide in the same five places. Tile allowance: if your bid carries $6 per square foot for field tile and theirs carries $2.50, that's roughly $230 of difference on a 65 square foot hall bath floor and tub surround alone, nothing to do with labor efficiency. Waterproofing membrane: a Schluter Kerdi or RedGard liquid membrane system commonly runs $350 to $600 in material and 3 to 4 labor hours for a tub surround. Some competitors quietly skip it and rely on cement board alone, which is water resistant but is not considered waterproof by most tile and membrane manufacturers. Haul-away and disposal: a dump run and fees for a full bathroom demo commonly run $300 to $600 depending on your local transfer station rates, and plenty of lowball bids simply exclude it, leaving the homeowner to discover a 'disposal not included' line later. Permit and inspection fees: if your competitor didn't pull a permit for plumbing relocation, they're not actually cheaper, they're unlicensed exposure. Fixture allowances: a $180 builder-grade toilet versus a $410 comfort-height model is a $230 swing that has nothing to do with your markup. Walk the homeowner through these line by line, out loud if possible. You're not badmouthing the competitor, you're translating their number into the same units as yours so the homeowner can see what they're actually comparing.

When the Numbers Really Do Match: What to Cut and What to Protect

Sometimes the scopes genuinely match and the other contractor is just hungrier or has lower overhead. Before you touch your price, separate your bid into three zones: your burdened labor cost (wages plus payroll tax, insurance, workers comp), your material cost, and your markup. Your burdened cost is the floor you never cross, full stop. If your burdened labor rate is $42 an hour and the job needs 38 hours, that's roughly $1,596 you cannot give away regardless of what the market is doing. What you can adjust is markup and discretionary extras. Maybe you were carrying a 20% contingency buffer for unknowns on this particular job, you can trim that to 10% if you're confident in the scope. Maybe you can switch a fixture allowance to a mid-grade line without changing function. What you should almost never do is cut your labor hours on paper to make the number work, because that labor still has to happen, and now you're either eating it or rushing the job and creating callbacks. If trimming contingency and adjusting allowances still doesn't close the gap, that's useful information: it tells you this client is price-shopping, not comparing value, and you can decide whether to hold firm or walk.

Red Flags That Mean You Should Walk

Some jobs cost you money no matter how well you estimate them, because the problem isn't the math, it's the relationship. Watch for these signs before you sign anything. First, an owner who pushes back on the written change order process itself, saying things like 'can't we just handle extras as we go and settle up at the end.' That's not flexibility, that's a request for you to do unpaid work, because 'settling up at the end' almost always means an argument over what was promised verbally. Second, an owner who negotiates you below your burdened cost and expects you to just 'find it somewhere,' especially if they frame it as 'the other guy would do it for that.' If your burdened cost says the job needs $1,596 in labor and they want your total number to be lower than your material cost plus that labor, you are being asked to subsidize their remodel, not to compete. Third, an owner who has already fired one or two contractors on this same job and describes both as 'the problem,' without acknowledging any scope ambiguity on their end. Fourth, demanding you start before permits are pulled or before a deposit clears, which signals they treat paperwork and payment terms as optional. None of these alone is disqualifying, but two or more together is commonly a strong signal to pass, even on a job that looks profitable on paper.

Closing the Loop: Estimated vs. Actual

The single habit that improves your bids faster than anything else is a 30-minute post-job review, done within a few days of completion while memory is fresh. Pull your original estimate and lay it next to your actual job costs: actual labor hours by task (demo, rough plumbing, waterproofing, tile, finish), actual material spend, and actual dump and disposal costs. Calculate the variance for each line as both a dollar amount and a percentage. If you estimated 6 hours for waterproofing membrane and it actually took 9, that's a 50% miss, and across several jobs that pattern tells you your waste factor or your labor rate assumption for that specific task is wrong, not just this one crew on this one day. Keep a running log, even a simple spreadsheet, with one row per job and columns for each major task's estimated versus actual hours. After 4 to 6 bathroom jobs, you'll see your real average tile-setting rate, your real demo rate, your real waterproofing rate, each one specific to your crew and your methods. That's the number you should be estimating from, not a number from a course or a book. The gap between estimated and actual isn't a failure to track down and feel bad about, it's raw material for your next bid.

Points clés

• •When a competing bid comes in lower, compare scope line by line (tile allowance, waterproofing membrane, haul-away, permits, fixture grade) before you consider cutting your price, since the gap is often explained by missing scope rather than better efficiency.
• •Your burdened labor cost is a floor, not a starting point for negotiation, adjust markup and contingency buffers first if you need to close a gap, never your labor hours on paper.
• •Walk away from jobs where the owner resists a written change order process or pressures you below burdened cost, these are relationship signals that predict disputes, not just pricing disagreements.
• •After every job, compare estimated versus actual hours and costs by task within a few days of finishing, while details are still fresh, and log the variance rather than letting it disappear into memory.
• •Build your future labor rates and waste factors from your own logged actuals across several jobs, not from industry averages, since your crew's real demo, waterproofing, and tile-setting rates are the only numbers that will make your next bid defensible.