A Proven Workflow for Accurate Estimates
Use a repeatable process so every estimate follows the same steps, data sources, and checks. Consistency is the fastest path to precision.
- Define scope, inclusions/exclusions, and assumptions up front
- Complete a disciplined takeoff tied to cost codes
- Price labor, materials, subs, and equipment from current data
- Add overhead, markups, and contingency; QA before sending
Scope & Takeoff Essentials
Scope clarity prevents underbidding. Tie each takeoff line to a cost code so field hours and purchasing roll up cleanly later.
- Confirm drawings/specs and RFIs; list assumptions and exclusions
- Quantify with units (LF, SF, CY, EA) and note waste factors
- Map takeoff lines to your standard cost codes
- Save a change log if documents are updated mid-bid
Pricing Inputs: Labor, Materials, Subs, Equipment
Price with today’s data, not last quarter. Lock supplier quotes and sub bids with expiration dates.
- Labor: base rate + burden (taxes, comp, benefits) by trade
- Materials: current supplier quotes; include freight and waste
- Subcontractors: compare scope apples-to-apples; confirm exclusions
- Equipment: own vs. rental rates, mobilization, and standby
Overhead, Markups & Profit
Separate cost from margin. Standard markups protect profits and speed approval internally.
- Allocate overhead (project mgmt, admin, small tools) consistently
- Apply standard markups by category (labor/material/sub)
- Set target gross margin; verify after all contingencies
- Document fees (permit handling, mobilization) as explicit lines
Risk, Allowances & Contingency
Call out unknowns explicitly. Use allowances and contingencies to cover volatility without hiding costs.
- Add allowances for selections not finalized (fixtures, finishes)
- Include contingency based on complexity and risk
- State assumptions, exclusions, and unit-price alternates
- Note price-validity window and supply lead-time risks
QA Review & Handoff to Proposal
Before you send, run a quick internal audit. Then convert the approved estimate into a customer-ready proposal.
- Check math, quantities, markups, and scope coverage
- Review by a second estimator or PM for blind spots
- Convert to a Werx proposal/estimate layout customers can approve online
- Prepare contract and SOV if awarded
From Estimate to SOV, Contracts & Billing
A strong estimate becomes your operational backbone—SOV, contract, and billing all align, preventing disputes.
- Group estimate lines into a Schedule of Values (SOV)
- Set retainage and stored-materials rules up front
- If awarded, generate contract projects and AIA/progress billing
- Sync invoices to QuickBooks Online
How Werx Improves Estimate Accuracy
Werx standardizes your estimating process and links it to proposals, SOVs, contracts, and pay apps—reducing rework and speeding approval.
- Use templates, cost codes, and assemblies in Werx Estimates
- Convert estimates into proposals for fast online approvals
- Roll accepted estimates into SOVs and AIA/progress billing
- Collect faster via online payments
FAQs About Accurate Estimates
What’s the difference between an estimate and a proposal?
An estimate is your internal cost and pricing build-up; a proposal (or bid) is the customer-facing offer that includes scope, price, terms, and validity.
How much contingency should I include?
It depends on project complexity and design completeness. Many contractors use 3–10% as a starting range and adjust based on risk.
How do I keep material prices current?
Request time-limited supplier quotes, note expirations, and include allowances for volatile items. Update pricing before finalizing the proposal.
TL;DR Recap
- Start with clear scope and disciplined takeoff tied to cost codes
- Price labor, materials, subs, and equipment with current data
- Separate overhead, markups, profit, and contingency
- Convert to proposals, then SOV/contracts for clean billing
- Werx streamlines templates, approvals, and billing handoff
