For concrete contractors · CSLB C-8

Concrete estimates, GC bid requests and job profit — from your phone.

Price driveways, slabs, footings and retaining walls from your own labor, rebar and yardage costs, get found by general contractors who need a licensed concrete contractor, and see what each pour actually made.

Try BuildRTX free for 3 daysExplore a sample job

No credit card required · Built by a Southern California general contractor

Sound familiar?

  • Yardage is right; the margin isn't.

    Pump time, rebar and finishing labor get rounded at the bid and paid for at the pour.

  • GCs need footings on Thursday.

    The job goes to whoever can be reached, not whoever does clean work.

  • The extra pad and the added rebar never get billed.

    Poured with the rest, missing from the invoice.

01 Estimate the job

From the site photo to a priced estimate.

Upload photos or plans. BuildRTX drafts yardage, rebar, labor and pump time from your real costs, so the margin is in the number before you send it.

  1. Upload
  2. Analyze
  3. Estimate
  4. Price
  5. Profit
Upload

Kitchen remodel

  • kitchen-wide.jpgJobsite photo✓
  • tile-wall.jpgJobsite photo✓
  • A-201 Kitchen plan.pdfPlan sheet · 1/4" = 1'-0"✓

Photos, plans or both — straight from your phone.

AI takeoffAI

What BuildRTX found

  • Cabinets detected12
  • Countertop area47 SF
  • Backsplash measured31 SF
  • Flooring calculated284 SF

You review every quantity before it reaches the estimate.

Labor
118 hrsEstimated labor · $7,670 at $65/hr
Demo & haul-off
16 h
Cabinet install
34 h
Drywall & patch
22 h
Tile & backsplash
20 h
Finish & punch
26 h
Materials
$18,950Estimated material cost
Cabinets (12 boxes + trim)
$8,900
Quartz countertops, 52 SF
$4,680
Flooring, 312 SF
$2,340
Fixtures & hardware
$1,450
Backsplash tile & setting
$980
Drywall, fasteners, misc.
$600
Estimate
Labor
$7,670
Materials
$18,950
Subcontractors (elec. / plumbing)
$4,800
Estimated project cost
$31,420
$46,800Suggested selling price · 32.9% margin

Your costs and margin stay private. The client sees the proposal.

Projected gross profit
$15,380Before the job starts
Selling price
$46,800
Project cost
− $31,420
Gross margin
32.9%

1 / 6 Upload job · Swipe →

02 Win the work

Get bid requests from general contractors who need concrete done.

General contractors on BuildRTX search for licensed concrete contractors near their jobs and send bid requests straight from the app. Your license, service area and ratings do the selling.

Network mapWithin 15 mi
Martinez Tile
4.2 mi · 4.9★
Brightline Electric
6.8 mi · 4.8★
Ramos Plumbing
9.1 mi · 4.7★
Contractor profile✓ Verified

Martinez Tile

Tile · backsplash, floors, showers

4.9★Rating
32BuildRTX jobs
4.2 miAway
BuildRTX Score
94 / 100
Typical lead time
1–2 weeks
License verification

California contractor license

ACTIVE ✓Checked against the state license board
Classification
C-54 Tile
Expires
08/2028
Liability insurance
Active
Workers' comp
Verify

Re-checked before you award the work.

Reviews & performance

From 32 completed BuildRTX jobs

  • Quality4.9
  • Reliability4.8
  • Communication4.9
  • Schedule performance4.7
“Showed up when they said, clean cuts, left the site broom-clean.”
Send bid requestBlind bid

Tile · Johnson Kitchen

Backsplash
35 SF · 8 LF edge
Kitchen floor
312 SF
Bids due
Fri, Oct 23
Homeowner info
Hidden until award

Demo — nothing is sent.

1 / 5 Network map · Swipe →

03 Get paid · know the profit

Always know what this concrete job is actually making.

Contract, change orders, invoices, payments and every receipt — rolled up into one profit number you can check from the truck.

ContractSigned

Johnson Kitchen

$48,500Home improvement contract
Signed
Oct 2 · e-signature
Preliminary notice
Included
Change orders
0
Payment schedule
  • DepositCA limit: $1,000 or 10%$1,000
  • Demo complete$8,700
  • Rough-in passed$12,125
  • Cabinets set$14,550
  • Final completion$12,125
Total
$48,500
Invoice #1042Sent

Milestone: Cabinets set

$14,550Due on receipt
Sent
Nov 6 · text + email
Viewed by client
Nov 6, 7:42 PM
Reminder
Scheduled · Nov 9
Payment receivedPaid
$36,375Collected of $48,500
Latest
$14,550 · ACH · Nov 7
Remaining
$12,125
Next
Final completion
Job costs
$24,210Spent to date
  • Materials$11,840
  • Labor$6,420
  • Subcontractors$4,950
  • Permits & dump fees$1,000
Still committed
$10,000
Johnson Kitchen
$14,290Projected profit · 29.5% margin
Contract
$48,500
Collected
$36,375
Remaining
$12,125
Job costs to date
$24,210
Projected total cost
$34,210

1 / 6 Contract · Swipe →

Questions concrete contractors ask

Is BuildRTX for concrete contractors?

Yes. C-8 contractors use it to estimate, invoice and track profit on their own jobs, and to receive bid requests from general contractors on the BuildRTX network.

How do general contractors find me?

GCs search the network for licensed concrete contractors near their job. Your license is checked live against the CSLB, and your ratings come from real BuildRTX jobs.

Can I track change orders?

Yes. Added pads and scope changes are written up, approved and added to the contract value so they get billed.

Does it work on a phone?

BuildRTX is built phone-first. It runs in the browser on iPhone and Android with nothing to install.

Free tools

Quick math for the truck — no account needed.

BuildRTX for other trades

Price it right. Get paid. Keep the profit.

Get StartedSee pricing