General Contractor Estimating Software That Wins Profitable Jobs
Build accurate estimates, manage Change Orders, and invoice clients all from your truck. The #1 app for Residential Contractors in the US & Canada.
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The Problem: You spend nights building bids in Excel. You forget to charge for the dumpster. You lose track of texts approving extra work.
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The Solution: CostHammer acts as your mobile project manager. Pull from your Master Cost Codes, your set markup added instantly, and get a signature before you leave the site.
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A Bit About CostHammer
Residential Construction Estimating: Whether it's a bathroom remodel or a new ADU build, our construction bid software organizes costs by category (Framing, Plumbing, HVAC). Never miss a line item again.
Change Order Management: Stop doing free work. When a client asks to move a wall or upgrade the tile, create a Change Order in the app instantly. Get it signed on the spot and update the total price automatically.
Progress Invoicing & Deposits: For big jobs, you need cash flow. Send a "Phase 1: Demolition" invoice today and a "Phase 2: Rough-In" invoice next week. Keep your business funded.
US & Canada Tax Ready: Built for North America. Automatically calculate state sales tax or Canadian HST/GST on materials and labor. We handle the math so you stay compliant.
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Toronto
Los Ángeles CA
New York NY
I used to spend my weekends typing up proposals. Now I build the quote while walking the job site with the homeowner. My close rate doubled. Mark D., MD Remodeling,
Competition in LA is fierce. If you don't get the bid out fast, you lose the job. CostHammer lets me build a full ADU estimate while sitting in clients living room. My win rate has never been higher. Carlos M., Golden State Construction
My clients in Brooklyn expect everything yesterday. This app is the only way I can keep up. I finish the walkthrough, tap a few buttons, and the invoice is in their inbox before I even get back to the truck. A total game changer. Anthony R., Cityline Renovations
Frequently Asked Questions
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Q: Is this software good for small business contractors?
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A: Yes. CostHammer is designed specifically for residential small businesses—from handyman services to custom home builders.
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Q: Can I use this for Canadian construction jobs?
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A: Absolutely. Our Canadian contractor app settings allow full customization of GST, HST, and PST taxes.
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Q: Does it work on Mac and iOS ?
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A: Yes. You can start a quote on your iPhone in the field and finish it on your desktop at the office.
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