How to Bid Residential Construction Jobs in LA (and Win the Right Ones)

Most contractors don't lose money on the jobs they win. They lose it on the 20 estimates they did for jobs they never had a real shot at. A good residential bidding process starts by deciding which jobs to bid, then makes the bid easy for an owner to say yes to.

Here's a practical process for LA residential work, from a single-trade sub bid to a full remodel.

Step 1: Qualify the job before you estimate it

Spend five minutes on these questions before spending five hours on an estimate:

• Is there a real scope? Plans, or at least a written scope, beat "just give me a number."
• Is it permitted, or will it be? Permitted jobs have defined requirements. Unpermitted ones carry legal and payment risk.
• Who's the decision maker, and are they ready? Ask about timeline and financing.
• How many bids are they getting? Three is normal. Ten means they're price-shopping.
• Is it in your zone? LA traffic is a real cost. A job across town may need a higher price or a pass.
• Does it fit your crew and your license classification?

If most answers are bad, a polite "not this one" is a good business decision.

Step 2: Walk the site with a checklist

For residential work in LA, these are the site items most likely to blow up a number:

• Age of the house. Pre-1978 homes mean EPA lead-safe work practices (the RRP rule) when you disturb painted surfaces. Older homes may also have knob-and-tube wiring, galvanized pipe or asbestos-containing materials.
• Access and staging. Hillside lots, narrow driveways, street parking permits, and whether there's room for a dumpster.
• Occupied or empty. Working around a family adds daily setup and cleanup time.
• Existing conditions behind finishes. Note what you can't see, and price or exclude it explicitly.
• Inspection requirements. Look for deputy inspections on the plans.

Take photos and measurements. You'll want them when you build the number and when there's a dispute later.

Step 3: Build the number from the bottom up

Use the same structure every time:

1. Quantities. Do the takeoff from the plans, and verify it in the field.
2. Materials, with current pricing from your supplier, plus waste. Material pricing has been volatile; date your quote and set an expiration. See our piece on material price volatility.
3. Labor hours by task, based on your own past jobs, not guesses.
4. Equipment and rentals: scaffolding, lifts, pumps, dumpsters.
5. Permits, inspections and fees, if they're yours.
6. General conditions: supervision, travel, cleanup, protection.
7. Overhead and profit, set as a deliberate percentage, not whatever is left over.

Compare the total against your past jobs of similar scope. If it's far off, find out why before you send it.

Step 4: Write the bid so it's easy to compare

Owners compare bids side by side, and the clearest one often wins even when it isn't cheapest.

• Restate the scope in your own words, organized by area or phase.
• List inclusions and exclusions. For example: "Excludes: permit fees, patching by others, color coat, dry rot repair beyond 10 LF." Exclusions protect you and show you've thought it through.
• Allowances for items the owner hasn't chosen yet (tile, fixtures), with the dollar amount stated.
• Schedule: your start window and duration, and what they depend on.
• Payment schedule tied to milestones. In California home improvement contracts, the down payment is capped at 10% of the price or $1,000, whichever is less (B&P Code §7159).
• License number, insurance and bond info on the bid.
• Expiration date.

Our guide on how owners read and compare bids shows what they look for.

Step 5: Follow up, once or twice

Most bids get no response at all, not a no. A short follow-up two or three days later ("Any questions on the scope?") and another a week after that is enough. If you lose, ask why. Price, timing or trust tells you something useful for next time.

Common LA bidding mistakes

• Underpricing access. Hillside and tight-lot jobs take longer, every day.
• Skipping the RRP and asbestos question on older homes.
• Bidding off someone else's scope without checking the plans.
• No change order process. Write it into the bid: changes are priced and signed before the work.
• Bidding outside your classification. Check the CSLB rules for your license.

Finding residential jobs to bid

The fastest way to get better at bidding is volume on jobs that fit. On Bidroom, homeowners and GCs post LA residential work by trade and neighborhood, with the scope up front. You can browse open LA jobs, see how bidding works, and create a free account to send your price and timeline. Jobs span framing and carpentry, concrete, roofing, electrical, plumbing, HVAC, painting and flooring.

For a deeper dive, see the complete guide to construction bidding.