Contractor job costing · v1.0.0 RC1
Know whether the job is still profitable before it’s too late.
Your estimate may look profitable on day one. Materials cost more, labor runs long, extra work appears, and change orders get missed. Contractor Margin Guard keeps the estimate, real costs, current forecast, and margin check in one local-first browser tool.
One-time launch price: US$29. No monthly subscription. Chrome or Edge recommended.
A signed estimate is a starting point, not a live margin report. A material overrun, an extra site visit, unbilled labor, or a change order that stays in a text thread can quietly consume the expected profit.
Margin Guard gives the job a repeatable review: compare what you planned, what has actually cost money, what extra work is approved, and what the current forecast says before closeout.
Record contract revenue, estimated materials, labor, subcontractor, equipment, overhead, and other costs so the original assumption remains visible.
Log actual costs and change orders separately. Approved work can be compared with work that is still pending instead of being treated as collected revenue.
Compare conservative, base, and aggressive scenarios to see how remaining cost exposure could affect projected profit and margin.
See where the original job budget and current costs diverge by category.
Keep approved, pending, and unbilled extra work visible during the job.
Use a current forecast to spot exposure before the final invoice or closeout.
A markup is commonly calculated from cost; margin is commonly discussed as profit as a share of revenue. Confusing the two can make a quote look safer than it is. Margin Guard keeps the numbers and assumptions visible so you can review the result in the context of your own pricing method.
Job closeout is more than marking a project complete. Review what was estimated, what actually happened, which extra work was approved, and what you want to remember for the next estimate.
Capture lessons from the finished job while the figures and decisions are still clear.
Create a client-facing proposal without exposing the internal margin review.
Download the ZIP, extract it, open START-HERE.html, and launch the app in Chrome or Edge. There is no installation, account, subscription, cloud database, or runtime API. Export JSON backups regularly because browser storage can be cleared.
Contractor Margin Guard is a planning and estimating tool. It does not provide accounting advice, tax advice, legal advice, payroll services, payment processing, guaranteed pricing, or guaranteed profitability. Users remain responsible for their own project pricing, contracts, taxes, legal obligations, and business decisions.
It compares the original estimate with actual costs, approved and pending change orders, current forecasts, projected margin, and profit leakage while a job is in progress.
No. It is a planning and estimating tool. It does not provide accounting, tax, legal, payroll, payment processing, invoicing, scheduling, or construction-management services.
No. Download the ZIP, extract it, open START-HERE.html, and click Launch the app in Chrome or Edge. No account, subscription, or cloud service is required.
The app is local-first and stores working data in browser storage on the device. Export JSON backups regularly because clearing browser storage can remove local data.
No. The tool shows calculations based on the figures you enter. Users remain responsible for project pricing, contracts, taxes, legal obligations, and business decisions.
Choose the marketplace checkout that fits your workflow. Both public listings are available at the same US$29 launch price.
Optional Amazon product discovery
These Amazon links are optional product-discovery resources. Check dimensions, specifications, availability, and current details on Amazon.
A closet organizer product considered for room planning and everyday home use. Review dimensions, mounting or power requirements, and current availability on Amazon.
A closet organizer product considered for room planning and everyday home use. Review dimensions, mounting or power requirements, and current availability on Amazon.
A closet organizer product considered for room planning and everyday home use. Review dimensions, mounting or power requirements, and current availability on Amazon.
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