Contact Us
Have a question, found a bug, or want to suggest a feature? We'd love to hear from you.
Send Us a Message
Fill out the form below and we'll get back to you within 1–2 business days.
We typically respond within 1–2 business days.
What We Can Help With
Bug Reports
Found a calculation error or display issue? Let us know the project type, dimensions you entered, and what browser you're using.
Feature Requests
Want a new project type, unit, or feature? We prioritize based on user demand — your suggestion helps us improve.
Concrete Questions
General concrete questions are best answered by our blog guides and FAQ section. For project-specific advice, consult a local contractor.
Advertising & Partnerships
Interested in advertising on FreeConcreteCalc or a content partnership? Include "Partnership" in your email subject line.
What We Cannot Help With
While we appreciate every email, please note that we are not licensed engineers or contractors. We cannot provide:
- Structural engineering advice or calculations
- Project-specific recommendations for load-bearing structures
- Building permit guidance (contact your local building department)
- Contractor recommendations or referrals
For structural projects, always consult a licensed professional engineer in your area.
Response Time
We aim to respond to all emails within 1–2 business days. Bug reports that include specific steps to reproduce the issue get the fastest response. Feature requests are logged and reviewed periodically — even if we don't respond immediately, we've read it.