Decision Tools for builders & renovators

Build & renovation decisions, without the spreadsheet chaos

Practical guides and offline tools for the moments where construction budgets are actually won or lost — written for owner-builders, self-builders and homeowners comparing contractors.

The tools

Home Build Decision Command CenterNormalize contractor bids to true cost, then control selections, change orders, payments and the live forecast — one offline file. EUR 19.90 — one-time, offline. Renovation Bid AnalyzerOne shared scope list, per-quote coverage, true-cost math — then change orders, payments and the snag list after award. EUR 17.00 — one-time, offline.

Free: True-cost bid comparison calculator — runs in your browser, no signup, nothing uploaded.

The guides

How to Compare Contractor Bids ProperlyContractor bids can't be compared by headline price. Normalize exclusions, missing scope and allowances line b… Home Build Allowances: How Allowance Traps Blow Your BudgetAllowances are where home-build budgets quietly fail. Track allowance vs actual selection cost by room and see… Change Order Tracker: Keep Mid-Build Changes VisibleChange orders are where build budgets drift. Log every proposed and approved change separately from the contra… Construction Draw Schedule: Match Payments to Verified WorkPay only for completed, verified stages. How construction draw schedules work, what lenders require, and how t… True Build Cost Forecast: The One Number That MattersYour real build cost isn't the contract price — it's normalized bids + selection variance + approved changes. … How to Compare Renovation QuotesRenovation quotes hide demolition, waste removal, permits and substrate surprises. Normalize scope line by lin…

Why we built this

Most build planners are printable pages or spreadsheets that store numbers but do no math. We keep one offline file that does the math: normalized bid cost, allowance variance, change-order ledger and a live forecast.