# VoltPro > Contractor proposal software for electrical, HVAC, and plumbing > contractors. Build estimates and send professional proposals. Start > from scratch or import your spreadsheet. Real-time profit tracking included. ## Key Pages - [Homepage](https://getvoltpro.com/): Contractor proposal software for electrical, HVAC, and plumbing contractors - [Pricing](https://getvoltpro.com/pricing): Free, Pro ($29/mo), and Pro+ ($49/mo) plans - [Help Center](https://getvoltpro.com/help-center): Product documentation and guides - [FAQ](https://getvoltpro.com/faq): Frequently asked questions ## Features - [Estimate Builder](https://getvoltpro.com/features/estimate-builder): Build estimates with real-time profit tracking, reusable assemblies, and automatic markup - [Estimates & Proposals](https://getvoltpro.com/features/estimate-proposals): Branded PDF estimates with scope of work, terms, and change orders - [Vendor Invoices](https://getvoltpro.com/features/vendor-invoices): Invoice scanning and automatic price catalog updates - [Price Catalog](https://getvoltpro.com/features/price-catalog): Centralized material database with price tracking by supplier ## Trades - [Contractor Proposal Software](https://getvoltpro.com/contractor-proposal-software): Proposal and estimating for electrical, HVAC, and plumbing contractors — spreadsheet import, real-time profit tracking, branded PDFs - [Electrical Contractor Software](https://getvoltpro.com/electrical-contractor-software): Proposal and estimating for commercial electricians — panel upgrades, service entrance, tenant fit-outs - [HVAC Contractor Software](https://getvoltpro.com/hvac-contractor-software): Proposal and estimating for commercial HVAC contractors — RTU changeouts, mini-split installs, tenant fit-outs - [Plumbing Contractor Software](https://getvoltpro.com/plumbing-contractor-software): Proposal and estimating for commercial plumbing contractors — rough-in, TI plumbing, commercial remodels ## Integrations - [QuickBooks Online](https://getvoltpro.com/integrations/quickbooks): Customer sync (two-way), estimate sync to QuickBooks, tax code and chart of accounts import ## Customer Stories - [How Dayton Power Saved 30 Hours on Estimating](https://getvoltpro.com/customers/how-dayton-power-optimized-estimating-process-and-grew-their-business-faster): Case study on optimizing estimating and growing faster ## Blog - [Best AI Tools for Electrical Contractors in 2026](https://getvoltpro.com/blog/best-ai-tools-electrical-contractors-2026): The AI tools worth a contractor's time and the prompting skill that makes them work — ChatGPT, Claude, and Gemini for writing, Wispr Flow for job-site voice capture, AI call answering, STACK for plan takeoff, and VoltPro for invoice-based pricing and proposals - [Electrical Estimating Software vs. Proposal Software](https://getvoltpro.com/blog/electrical-estimating-software-vs-proposal-software): The difference between estimating software and proposal software, and why the spreadsheet falls short after the number is built - [Contractor Estimates vs. Quotes](https://getvoltpro.com/blog/contractor-estimates-vs-quotes): The difference between estimates and quotes - [Margin vs. Markup](https://getvoltpro.com/blog/margin-vs-markup): Understanding profit margin vs markup for contractors - [How to Launch Your Contracting Business](https://getvoltpro.com/blog/launching-your-contracting-business-part-1): Part 1 of the contracting business launch guide - [How to Scale Your Contracting Business](https://getvoltpro.com/blog/scaling-your-contracting-business-part-2): Part 2 of the contracting business growth guide - [Streamline Your Estimates and Material Tracking](https://getvoltpro.com/blog/revolutionize-your-contracting-business): How modern tools transform electrical contracting - [Product Updates: March 2026](https://getvoltpro.com/blog/product-updates-march-2026): Latest feature releases and improvements - [Product Updates: December 2025](https://getvoltpro.com/blog/product-updates-december-2025): Feature releases from December 2025 - [Product Updates: November 2025](https://getvoltpro.com/blog/product-updates-november-2025): Feature releases from November 2025 - [Product Updates: May 2025](https://getvoltpro.com/blog/product-updates-may-2025): Feature releases from May 2025 - [Product Updates: March 2025](https://getvoltpro.com/blog/product-updates-march-2025): Feature releases from March 2025 - [Product Updates: October 2024](https://getvoltpro.com/blog/product-updates-october-2024): Feature releases from October 2024 ## Free Tools - [Free Tools Index](https://getvoltpro.com/free-tools): All free tools and templates for trade contractors - [Electrical Estimate Templates](https://getvoltpro.com/free-tools/electrical-estimate-template): Two free electrical estimate templates — simple one-sheet and full Price Book workflow with client-facing proposal output. Works in Excel and Google Sheets. - [Electrical Quote Template](https://getvoltpro.com/free-tools/electrical-quote-template): Free professional client-facing electrical quote template with scope of work, exclusions, itemized line items, and payment terms. Works in Excel and Google Sheets. - [Markup and Margin Calculator](https://getvoltpro.com/free-tools/markup-calculator): Free markup and margin calculator for trade contractors — with quick-reference table and trade-specific benchmarks - [Electrical Job Pricing Calculator](https://getvoltpro.com/free-tools/electrical-job-pricing-calculator): Free bid calculator for commercial electrical contractors. Enter material cost, labor hours, and loaded labor rate; overhead % and target margin % are pre-filled with industry defaults you can adjust. Returns your bid price and the profit in dollars you keep. A separate "find your real overhead rate" tool converts your annual overhead and real billable hours into an hourly rate. No email required. ## Comparisons - [VoltPro vs Spreadsheets](https://getvoltpro.com/compare/spreadsheets): How VoltPro complements an estimating spreadsheet. Import the CSV, see your profit, and send a branded PDF proposal. Keep the spreadsheet for the math; VoltPro handles the client-facing output. ## Details - [Full documentation](https://getvoltpro.com/llms-full.txt)