Obra for Siding contractors

Siding job costing, from tear-off to the last piece of trim

Track each siding job as its own project: siding, wrap, windows, dumpster, lift and labor. Turn rotten sheathing into a change order instead of a loss.

A siding job is priced from the outside of the house and paid for by what's underneath it. The material bill is set the day you order. The labor is a crew for two weeks. The margin is decided by the sheathing behind the old siding, the windows the client picks after the quote, and the days the lift sits in the driveway waiting for weather.

Obra keeps each job as its own project, with the windows as an allowance and the repairs as change orders, so you know what the house made you before the last piece of trim goes on.

Material by the line

Set up the budget the way you bid it: siding and trim, wrap and flashing, windows, fasteners, dumpster, lift, labor. When the invoices come in, they go against the right line and the job's page shows the gap. The cost code guide has a list you can copy.

Windows as an allowance

The window allowance is the number most likely to move. Budget it on its own line, log the window invoice against it, and turn any upgrade into a change order before the order goes in. The allowance overage guide shows the wording that keeps the client on your side.

What's behind the old siding

Rotten sheathing, missing flashing, a wall with no wrap at all. Take the photos, write the change order, get it approved before the wrap goes on. Obra adds it to the contract so the margin reflects the real job. The change order guide is a five-minute read.

The margin on each house

When the last invoice is paid, the job's page shows the contract, total cost and margin. Compare your fiber cement jobs with your vinyl jobs and your window-only jobs. The markup and margin guide helps you set the number to aim for.

What Obra isn't for a siding contractor

Not a visualizer, not a CRM, not estimating software. Obra is the money on each job, in English and Spanish, from receipts your crew already sends, exported clean to the accountant.

Sample budget

Fiber cement siding and trim with 12 window replacements, Riverside

Line item Budget
Fiber cement siding and trim $8,900
House wrap, flashing, tape $1,100
Windows (allowance, 12 units) $7,200
Fasteners, caulk, touch-up paint $600
Dumpster and disposal $900
Lift rental $700
Permit and inspection $350
Crew labor, tear-off, windows and install $8,400
Direct cost budget $28,150
Contract value $36,500
Gross margin budgeted $8,350

Illustrative figures in US dollars for a fictional project; use them to see the shape of the budget, not to price a job.

The cost codes this trade actually uses

  • 01 Tear-off and disposal
  • 02 Sheathing repairs
  • 03 House wrap and flashing
  • 04 Siding and trim
  • 05 Windows and doors
  • 06 Soffit, fascia and gutters
  • 07 Caulk, paint and touch-up
  • 08 Permits and inspections
  • 09 Crew labor, tear-off
  • 10 Crew labor, install
  • 11 Equipment rentals
  • 12 Vehicle and fuel

The change orders that eat the margin

Rotten sheathing behind the old siding
The old siding comes off and the OSB under the bathroom window is soft for six feet in every direction. New sheathing and the labor to replace it is a change order, priced with photos before the wrap goes on.
The window upgrade after the quote
The allowance was for white vinyl. The client sees black frames and tempered glass at the showroom. The difference is a change order, signed before the order goes in, because windows don't come back.
Lead paint on a pre-1978 house
The test comes back positive. Containment, disposal and the extra days of careful work were not in the bid. Write it up the day the test result arrives.

Questions people ask

Can I track the windows as an allowance?
Yes. Put the allowance on its own line, log the window invoice against it, and record any upgrade as a change order. The job's page shows exactly where the allowance stands.
Sheathing repairs are different on every house. How do I budget them?
Carry a small allowance line for repairs. When the tear-off finds more, the extra becomes a change order with photos. Over a season you'll know what to carry for a house of that age.
Does Obra do exterior renderings or lead management?
No. Keep your visualizer and your CRM. Obra is the money side: what each job cost, what you billed, and the margin, once the contract is signed.
Can my crew send receipts from the lumber yard?
Yes. A photo by WhatsApp, email or the app, in English or Spanish. They never see the job's finances. You confirm it to the right job in a few seconds.
Free download

Not ready for an app? Start with our free Excel template.

A ready-made spreadsheet to track costs and income per project — with categories and the totals already set up.

The download starts right away. We'll also follow up by email with more job-costing help — no spam, unsubscribe anytime.