Contact us
Questions, corrections and calculator requests all go to the same inbox — we read every one.
Quick answer
Email us at hello@cementcalc.com. We reply to most messages within two to three business days.
Email us
The fastest way to reach CementCalc is email:
CementCalc is an online publication with no walk-in location and no phone line, so email is the only channel we monitor.
What to include
- Reporting a wrong result: the page you were on, the exact inputs you entered, and the number you expected.
- Requesting a calculator: the material and the shape or assembly you are estimating, plus the units you work in.
- Advertising or partnerships: your company, the product, and what you have in mind.
- Content or privacy requests: the URL involved and what you would like changed or removed.
What we cannot help with
We do not size structural elements, review drawings, quote local material prices or act as a contractor referral service. For anything structural or permit-related, contact your local building department or a licensed engineer. See how our numbers are calculated for the limits of every estimate on this site.