CausewayOne Estimating vs OpenConstructionERP
CausewayOne Estimating
campaign.causeway.com
OpenConstructionERP
openconstructionerp.comSide by side
| Figure | CausewayOne Estimating | OpenConstructionERP |
|---|---|---|
| Price from | — | €100/mo |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 0 | 11 |
| Spec score · Construction Estimating Software | 7.6 (#16) | 9.1 (#5) |
| Integrations | The estimating page says takeoff works directly from BIM, DWG, and PDF drawings; it does not name third-party integrations. | Listed connections include Excel, SAP, DATEV, Xero, Revit, AutoCAD, MicroStation, SharePoint, Google Drive, Dropbox, Nextcloud, Power BI, Tableau, Metabase, MS Project, n8n, Zapier and Make. |
| Intended users | Causeway presents the product for contractors and subcontractors, including small contractors and growing businesses. | The maker presents the product for construction teams and describes workflows spanning general contractors, specialist subcontractors and quantity surveying teams. |
| Purpose | CausewayOne Estimating is a cloud-native pre-construction platform for building estimates, managing tenders and collaborating with teams and suppliers. | OpenConstructionERP is a construction cost estimation and project management platform covering quantity takeoff, BOQ preparation, tendering, project execution, quality management and financial control. |
| Support | Causeway offers a support portal, knowledge base, training courses, and access to its support team. | Community support is available through GitHub, documentation and the community forum; paid licences also describe email or priority support. |
Plans
OpenConstructionERP
- Self-hostedFree
- CWICR cost database€750, paid once
- Priority SLA€1,200 a year
- cad2data converters€1,800 a year
- DDC cad2data converters€1,800 a year
- Commercial licence€2,500, paid once
- Implementation€3,000, paid once
- White-label€5,000, paid once
- White-label SaaS€5,000, paid once
- Hosted & licensedPriced on request
In their own words
CausewayOne Estimating
CausewayOne Estimating is web-based software for contractors and subcontractors handling bids and tenders. Estimators can build Bills of Quantities, assign resources and trades, and reuse standard pricing or earlier estimates. CAD/BIM Measure supports takeoffs from BIM, DWG, and PDF drawings, measuring areas, lengths, volumes, and curved or pitched surfaces. Drawing comparison, snapping, and custom scaling tools support measurement work. Subcontractor bids can be compared, with missing or deviant rates flagged automatically. Subcontractors access tender packages and submit prices, while estimators share revised drawings and specifications as addendums. Central document storage includes version control and audit trails, with documents assigned to trade packages. Causeway describes the platform as multi-user, cloud-native, and available from any device with an internet connection. Single Sign-On is available. The paid product was founded in 1999 and is headquartered in Buckinghamshire, United Kingdom; pricing is on request.
OpenConstructionERP
OpenConstructionERP has no write-up on Specifiction yet; its figures are above.