About CostOnce
We believe you should know what a project costs before you give anyone your phone number.
Our Mission
Every estimate on CostOnce is calculated using real regional labor rates, current material costs, and location-specific adjustments. We aggregate data from government sources, industry reports, and material suppliers to give you accurate, up-to-date pricing.
No lead-gen. No contractor referral fees. No bias. Just the numbers you need to make informed decisions about your home improvement projects.
How We're Different
No Phone Number Required
Get instant cost estimates without submitting your contact info. No calls from contractors. No spam.
Data-Driven Estimates
Our costs come from Bureau of Labor Statistics, Census data, and industry pricing—not guesswork.
Location-Specific Pricing
Costs vary 15-30% by state. Our regional multipliers account for local labor rates and cost of living.
Updated Monthly
Material prices change constantly. We update our data monthly to reflect current market conditions.
Our Data
We take accuracy seriously. Every cost estimate is built from multiple verified sources:
- ✓Bureau of Labor Statistics — Regional labor rates and wage data
- ✓RSMeans/Craftsman — Industry-standard construction cost data
- ✓Major Retailers — Current material pricing from Home Depot, Lowe's, etc.
- ✓Census Bureau — Regional cost-of-living adjustments
Part of the CalcOnce Family
CostOnce is built by the same team behind these helpful tools:
Questions or Feedback?
We're always looking to improve our estimates and add new projects.
Contact Us