
CausewayOne Estimating
CausewayOne Estimating is bidding and tendering software for contractors and subcontractors.
What CausewayOne Estimating is
CausewayOne Estimating is bidding and tendering software for contractors and subcontractors. Estimators can build Bills of Quantities, allocate resources and trades, and reuse standard pricing or previous estimates. Its CAD/BIM Measure tools take measurements from BIM, DWG, and PDF drawings, including areas, lengths, volumes, and curved or pitched surfaces. Drawing comparison, snapping, and custom scaling tools are also available. Estimators can compare subcontractor bids, with missing or deviant rates flagged automatically. Subcontractors can access and price tender packages through the platform, while estimators can issue revised drawings and specifications as addendums. The system stores documents centrally with version control and audit trails, and lets estimators assign drawings and documents to trade packages. Causeway describes the product as multi-user and cloud-native, accessible from any device with an internet connection for collaboration. Single Sign-On support is available. Causeway offers a support portal, knowledge base, training courses, and access to its support team. It was founded in 1999 and is headquartered in Buckinghamshire, United Kingdom. Pricing is on request.
Good
- Builds Bills of Quantities and reuses previous estimates
- Measures BIM, DWG, and PDF drawings
- Flags missing or deviant subcontractor rates
- Supports tender-package access and pricing for subcontractors
- Includes version control and audit trails
Watch out
- Pricing is available on request
- Third-party integrations are not named
Who it suits
It suits contractors and subcontractors managing bids and tender packages, including small contractors and growing businesses. Estimating teams that work from BIM, DWG, or PDF drawings may find its takeoff tools relevant.
Verdict
CausewayOne Estimating combines estimate building, drawing takeoff, bid comparison, and tender-package collaboration in a cloud-native platform. Causeway does not publish a price, so prospective customers must request details.
The facts
Each one read from CausewayOne Estimating's own pages, with the date it was checked.
What it does
- Access and collaboration
- Causeway describes the platform as multi-user and cloud-native, accessible from anywhere on any device for team collaboration.checked 8 Oct 2026
- Bid comparison
- Estimators can compare subcontractor bids, with missing or deviant rates flagged automatically.checked 8 Oct 2026
- Cloud access
- Causeway describes Estimating as cloud-native and says it is accessible from anywhere with an internet connection.checked 8 Oct 2026
- Document controls
- The platform offers central document storage with version control and audit trails.checked 8 Oct 2026
- Document management
- The platform provides centralised document storage with version control and audit trails, and lets estimators allocate drawings and documents to trade packages.checked 8 Oct 2026
- Downloads
- Causeway says customers registered with license manager can download current versions of its software, including Causeway Estimating.checked 8 Oct 2026
- Estimate building
- Users can group labour, plant and material into reusable activity resources and drag resources from a library into a rate build-up.checked 8 Oct 2026
- Integrations
- The estimating page says takeoff works directly from BIM, DWG, and PDF drawings; it does not name third-party integrations.checked 8 Oct 2026
- Intended customers
- Causeway describes the platform as suitable for small contractors and growing businesses, and says more than 400 leading UK contractors rely on it.checked 8 Oct 2026
- Intended users
- Causeway presents the product for contractors and subcontractors, including small contractors and growing businesses.checked 8 Oct 2026
- On-screen takeoff
- The software measures areas, lengths, volumes, and curved or pitched surfaces from BIM, DWG, and PDF drawings, with drawing comparison, snapping, and custom scaling tools.checked 8 Oct 2026
- Pricing
- The product page invites prospective customers to book a demonstration and does not state a price.checked 8 Oct 2026
- Pricing availability
- The product page invites prospective customers to book a demonstration or contact Causeway; it does not state a price.checked 8 Oct 2026
- Purpose
- CausewayOne Estimating helps contractors and subcontractors manage bidding and tendering.checked 8 Oct 2026
- Security
- Causeway says Single Sign-On support is available for CausewayOne Estimating.checked 8 Oct 2026
- Supplier collaboration
- Subcontractors can access and price tender packages through the platform.checked 8 Oct 2026
- Supplier tendering
- Subcontractors can access and price tender packages through the platform, and estimators can share revised drawings and specifications as addendums.checked 8 Oct 2026
- Support
- Causeway offers a support portal, knowledge base, training courses, and access to its support team.checked 8 Oct 2026
- Supported drawing formats
- On-screen takeoff measures areas, lengths, volumes, and curved or pitched surfaces from BIM, DWG, and PDF drawings.checked 8 Oct 2026
- Takeoff
- The product includes CAD/BIM Measure for takeoffs and measurements, and supports measurement from BIM, DWG and PDF drawings.checked 8 Oct 2026
The company
- Company security
- Causeway says its Cyber Essentials Plus certification applies to products hosted in its core cloud environments, including AWS, Azure, Google Cloud Platform, and RedCentric.checked 8 Oct 2026
- Founded
- 1999checked 28 Sep 2026
- Headquarters
- Buckinghamshire, United Kingdomchecked 28 Sep 2026
Alternatives to CausewayOne Estimating
- 1
Buildxact
Free planAndroidiOSWebAPI8.3From $199 a month - 2
STACK
Free planAndroidiOSWebAPI8.2From $49 a month - 3

OpenConstructionERP
Free planOpen sourceWebAPILinuxmacOS8.1From €1,200 a year - 4

Clear Estimates
AndroidiOSWebAPI7.9From $59 a month - 5
Autodesk Forma Takeoff
AndroidiOSWebAPI7.7From $108 a month - 6

Bidwright
Free planOpen sourceWebAPILinuxmacOS7.6Free plan
