For Contractors, Builders, and Trade Businesses
Construction Estimating Software
Create accurate construction estimates, proposals, change orders, and invoices from one connected workspace. Erro gives your team reusable pricing, sales assemblies, and client-ready documents so you can quote work faster and protect your margins.

Solving Real Problems for Your Team
Our platform is designed to address the unique challenges faced by owners, managers, estimators, sales teams, and clients—empowering everyone to achieve better outcomes, together.

Build accurate estimates without rebuilding every quote
Turn frequently used materials, labor, and scopes into reusable line items and sales assemblies, so your team can estimate consistently without starting from a spreadsheet.
Create estimates from reusable templates and assemblies
Keep material, labor, and service pricing in one library
Apply taxes and totals automatically
Reuse proven estimate structures for similar jobs

Move from estimate to approved proposal faster
Create polished proposals from your estimate data and keep client-facing pricing, scope, and revisions organized in one place.
Generate client-ready proposals from estimates
Use saved templates for common job types
Keep estimate revisions clear for your team
Give clients a professional, consistent experience

Keep changes profitable and documented
When a job scope changes, create a change order from the original estimate and keep additional work, pricing, and approvals visible.
Create change orders from existing estimates
Maintain a record of revisions and added scope
Update pricing without duplicating work
Keep project changes organized from sale to payment

Run estimating from the office or the field
Access your estimating workflow from desktop or mobile, so estimators, owners, and sales teams can stay aligned wherever work happens.
Use one connected workspace across desktop and mobile
Track leads alongside estimates and proposals
Keep client information and job context together
Start a free trial and create an account immediately
Construction software solutions by business type
Explore workflows for the way your team estimates, sells, and manages client changes.
Construction Estimating Software
Estimate, propose, manage changes, and invoice from one workspace.
Trades & Construction
For specialty contractors and trade businesses.
Custom Remodelers
For repeatable scope, material, and change-order pricing.
Custom Home Builders
For detailed estimates, selections, and client approvals.
Design & Build Firms
For design-build teams that need a connected sales workflow.
Fabricators & Manufacturers
For organized estimates, orders, and client change management.
Agencies & Consultants
For client-facing teams managing proposals and sales activity.
Modernizing Sales Teams
For teams replacing manual sales processes and spreadsheets.
Ready to estimate and sell more efficiently?
Start your 30-day free trial, create an account immediately, and build accurate estimates and proposals from desktop or mobile.
Everything your team needs to stay in sync.
From leads to invoices, Erro keeps your team aligned. Built-in CRM and project management tools help you track clients, assign tasks, and stay updated on every job.

CRM & Contact Forms
Capture, organize, and manage leads in one place to keep your pipeline moving. Collect leads from web forms, phone calls, and referrals, then track interactions, apply custom tags and statuses, and collaborate with your team to turn more opportunities into conversions.

Marketing Automation
Automate outreach to save time and boost conversions. Set up email campaigns, schedule follow-ups, and use custom email templates to maintain a consistent brand presence and streamline communications at scale.

Product Library
Centralize all your offerings with up-to-date pricing, tax profiles, and budget tracking. Add items to estimates, proposals, and invoices with accuracy, without relying on spreadsheets or manual calculations.

Sales Templates
Build reusable templates for all your sales documents, including estimates and proposals. Support complex assemblies, base and option pricing, and item groupings. Save, update, and copy templates to streamline workflows, reduce errors, and accelerate sales cycles.

Estimate Creation
Create accurate estimates in minutes using templates and live pricing from your product library. Adjust items, quantities, and pricing with confidence, then send proposals directly from your estimates to clients for faster approvals.

Proposals
Create, manage, and send professional proposals with ease. Customize templates, track client interactions, and streamline the approval process to close deals faster.

Invoices & Payments
Generate invoices from proposals and record payments seamlessly. Automate billing notifications, track payment status, and manage recurring or scheduled invoices—all from a single dashboard.

Change Orders
Manage change orders efficiently by linking them directly to estimates and proposals. Track payments and current pricing, update line items easily, and keep your team informed with dashboard visibility and automated approval workflows.
Ready to estimate and sell more efficiently?
Start your 30-day free trial, create an account immediately, and build accurate estimates and proposals from desktop or mobile.
Frequently Asked Questions
How do I access Erro?
How do I get started with Erro?
Can I change my subscription plan later?
Is Erro suitable for small businesses?
How is billing managed?
Does Erro offer customer support?
Can I import my existing data into Erro?
Is Erro Mobile-Friendly?
How do I add my lead form to my website?
Is my data secure with Erro?