Built for General Contractors
Estimating Software
Manage complex multi-trade estimates with sub-contractor costs, material takeoffs, and profit margins all in one place.
No credit card required • Cancel anytime
Sound Familiar?
These are the problems general contractors face every day. GrowZbl solves all of them.
Juggling sub-contractor bids, material costs, and labor across multiple trades
Change orders that don't get documented properly and eat into profits
Spending entire weekends building detailed estimates for large projects
Overhead costs like insurance, licensing, and office expenses not factored into pricing
How GrowZbl Helps General Contractors
Multi-Service Estimates
Group framing, electrical, plumbing, HVAC, and finish work into one organized estimate with per-trade subtotals.
Overhead Calculator
Factor in insurance, licensing, truck payments, office rent, and employee overhead into your true hourly cost.
Change Order Management
Create change orders linked to the original estimate. Track scope changes without losing the original pricing.
Payment Milestones
Break large projects into payment milestones — deposit, rough-in, finish, final — each with its own due amount.
Trusted by 280+ Contractors
“I used to spend hours on estimates. Now I build and send them in 10 minutes. GrowZbl paid for itself the first week.”
— GrowZbl User
Common Questions from General Contractors
Can I include sub-contractor costs in my estimates?
Yes. Add sub-contractor bids as line items under each trade service. Apply your markup and GrowZbl calculates your total with profit built in.
How do payment milestones work?
Set up milestones like 30% deposit, 30% at rough-in, 30% at finish, and 10% at final walkthrough. Each milestone becomes a separate payment that clients can pay online.
Can I handle change orders?
Yes. Create change orders that reference the original estimate. The client signs the change order separately, and the new total reflects the additions.