Estimate Custom Homes, Options, and Client Changes With Confidence
Custom Home Builder Estimating Software
Build consistent custom home estimates from a shared library, present options clearly, and keep proposals, approved changes, invoices, and client communication connected. Erro gives builders a practical workflow from first inquiry through the signed scope.
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.
A custom-home estimate has too many details to rebuild from a blank spreadsheet
Start with the recurring scopes your team already understands: site work, foundation, framing, mechanicals, finishes, and project-specific allowances. Reusable library items and assemblies make the estimate easier to review without hiding the assumptions that make each home unique.
Group costs by phase, trade, or room
Reuse labor, material, and service line items
Keep allowances and exclusions visible
Review a complete scope before a price is sent
Base specifications, upgrades, and client selections blur the original price
Separate included specifications from optional upgrades and allowances before presenting the proposal. A clear option structure lets the client see what is included, what can change, and how a selection affects the total.
Create repeatable room and finish packages
Present base scope and optional selections separately
Document allowance assumptions
Keep revisions attached to the current estimate
Long sales cycles make follow-up and proposal status hard to manage
Keep prospective homeowners, project notes, estimates, and next steps in a connected sales workflow. Use a defined process for discovery, budget alignment, proposal delivery, and follow-up so opportunities are not left in inboxes or disconnected files.
Capture and organize new inquiries
Assign clear follow-up ownership
Connect lead context to the estimate
Know which proposal needs the next action
Client changes create scope risk after the original proposal is approved
When a selection, condition, or requested upgrade changes the work, record the impact before proceeding. Create a change order from the original estimate, state the added scope and price, and keep the approval with the project record.
Price changes from the approved estimate
Show labor, materials, and scope impact
Send client-ready change documentation
Maintain a record of approved revisions
Deposits and progress billing need to match a clear client commitment
Use the approved proposal and defined payment milestones as the starting point for invoices. Clear billing descriptions and timely reminders help homeowners understand what is due and why.
Set deposits and milestone payments
Create invoices from the agreed workflow
Offer online payment options through Stripe
Keep billing follow-up organized
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.
Commercial Construction Estimating
For detailed bids, revisions, and commercial proposal workflows.
Construction Cost Database Software
For teams that need shared pricing, assemblies, and estimate consistency.
Construction Marketing Automation
For lead capture, estimate follow-up, and connected client communication.
Construction Payment Reminders
For invoices, payment plans, online payments, and follow-up.
Construction Profitability Workflows
For estimates, scope changes, billing, and more informed pricing decisions.
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.
Modular Home Builders
For model pricing, option packages, site work, and client changes.
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?