AI Construction Estimating Software, built by people who get it
BuildCrux is the AI construction estimating software for remodelers and GCs — built by TackOn Labs, a technology company focused on practical, powerful software for the trades.
Our Mission
Estimating is the single hardest part of running a contracting business — and the most expensive to get wrong. A senior estimator on staff costs $120K–$180K a year, takes a week per commercial bid, and is the bottleneck on every job that walks in the door.
BuildCrux exists to put that capability inside any remodeler or GC’s workflow. Our multi-pass AI pipeline reads PDF drawing sets up to 500 pages — residential remodels, restaurant TIs, dental fit-outs, retail buildouts, medspa, clinics, pharmacies — and outputs priced line items inside the dollar range a senior commercial estimator would quote, in twelve minutes instead of a week.
The estimating engine ships inside a complete contractor workspace — projects, invoicing, contracts, change orders, mileage, team — so you can win the bid and run the job from one platform.
17+
Features Included
4
Subscription Plans
Up to 2,000
AI Credits / Month
30 Days
Money-Back
What Makes BuildCrux Different
We don't just digitize paperwork. We rethink how contractors manage their entire business.
AI Estimating Is the Wedge
Our multi-pass AI estimating pipeline ingests PDF drawing sets up to 500 pages and outputs priced line items inside the senior-estimator dollar range. Residential remodels, restaurants, dental fit-outs, retail buildouts, medspa, clinics, pharmacies. This is the work BuildCrux is built around.
For Remodelers and GCs
Residential-first competitors ignore commercial work. Enterprise tools ignore remodelers. BuildCrux is built for the contractors in between — from solo remodelers to 30-person commercial firms running mixed residential + light-commercial work — and gives them real estimating power without enterprise pricing.
Built for the Field
Every feature is designed for how contractors actually work — on job sites, in trucks, and on the go. No bloated enterprise software adapted for construction. Purpose-built from day one.
Secure and Reliable
Your business data is protected with enterprise-grade encryption, secure authentication, and role-based access controls. We use Supabase for database security and Stripe for PCI-compliant payment processing.
Team-First Design
From solo operators to crews of 30+, BuildCrux scales with your team. Invite subcontractors, assign tasks, manage permissions, and communicate — all from one workspace.
Grow Your Business
Real-time dashboards, expense tracking, and profitability reports give you the visibility to make smarter business decisions. Know your numbers without hiring a bookkeeper.
One Platform, Every Tool
Project Management
Track jobs from bid to completion with timelines, budgets, tasks, and photo documentation.
Invoicing & Payments
Send professional invoices, accept credit card and ACH payments, and automate payment reminders.
Contracts & E-Signatures
Create, send, and get contracts signed electronically. Full audit trail with IP logging.
AI-Powered Estimates
Upload blueprints or describe a project and get detailed, accurate estimates generated by AI.
Mileage Tracking
Log trips automatically with GPS. Generate IRS-compliant mileage reports for tax deductions.
Team & Sub Management
Invite team members and subs to your workspace. Assign tasks, track time, and manage roles.
Expense & Receipt Tracking
Snap photos of receipts, categorize expenses, and allocate costs to specific projects.
Change Orders
Create and track change orders with approval workflows. Keep scope changes documented and signed.
A Product of TackOn Labs
TackOn Labs is a technology company building AI-native software for real businesses. BuildCrux is our flagship product for the construction and trades industry — an AI construction estimating engine purpose-built for the remodeler and small-GC gap that legacy tools never serve well.
We believe the trades deserve the same quality of software that tech companies build for themselves — clean design, fast performance, mobile-first experiences, and intelligent automation — not clunky enterprise tools with steep learning curves.
Ready to run your business from one app?
Try BuildCrux risk-free with our 30-day money-back guarantee. Cancel within the first month for a full refund. Set up in under 5 minutes.