Rebar by WithRebar logo - BIM and AEC software

Rebar by WithRebar

Rebar by WithRebar is web-based estimating software for HVAC suppliers that pairs AI-assisted plan markup, room search, and addendum change tracking so inside sales teams can produce bids faster than manual takeoff workflows.

Marketed to HVAC distributors and manufacturers, Rebar focuses on takeoff speed for inside staff rather than generic office spreadsheets. The public site states teams can quote jobs roughly 60 to 70 percent faster than before, positioning the product around throughput for repetitive bid rooms (WithRebar, 2026).

Feature bullets highlight AI equipment marking with properties, automatic room search across drawing sets, and an addendum change summary so revisions do not get missed after late owner updates. Integrations are named with common estimating and pricing platforms, and the vendor advertises an upcoming one-click quote flow with a paired pricing product.

Analytics sections describe basis-of-design tracking, bid volume, time-on-task, and line-level performance so managers can see which reps and product lines drive work. Security copy stresses organization-level data isolation and NDA-style project handling.

Pricing is not published on the landing pages; teams book demos through hosted scheduling. Treat public performance figures as directional and confirm scope, integrations, and commercial terms on the latest vendor materials before procurement.

Specifications

Pricing

Enterprise quote

Platforms

Web

Used for

HVAC equipment takeoffsPlan addendum reviewSupplier bid preparationSales performance reporting

Used by

HVAC distributorsInside sales estimatorsManufacturer sales engineersPreconstruction managers at suppliers

Tasks

Quantity takeoffBid packagingChange trackingTeam reporting

Pros and cons

Pros

  • Narrow focus on HVAC supply estimating rather than generic takeoff tools.
  • Workflow features target addendum churn common in competitive bid rooms.
  • Vendor publishes integration plans for pricing and quoting stacks.

Cons

  • Public pricing requires a sales conversation.
  • Positioned for supplier-side HVAC workflows, not full GC estimating suites.
  • Some advertised integrations are marked as launching soon on marketing pages.

Key features

  • AI equipment marking: Tag equipment on drawings with properties pulled into the estimate instead of purely manual counts.

  • Room search: Search drawing rooms automatically to reduce time spent panning sheets for repeated device types.

  • Addendum summaries: Summarize plan addenda so pricing tracks late changes without a full re-read of every sheet.

  • Analytics for estimating leaders: Track bid volume, time spent estimating, and product-line performance across reps.

  • Integrations: Connects with partner estimating and pricing tools; the vendor lists additional connectors on its roadmap.

Pricing

Commercial (quoted)

Contact sales

No public list price as of 2026; confirm with WithRebar.

Frequently asked questions

What is Rebar by WithRebar used for?

It is a web application for HVAC suppliers who need faster plan takeoffs, equipment counts, and addendum tracking when quoting jobs. Marketing emphasizes AI-assisted markup, room search, and analytics for estimating managers.

Does Rebar replace my estimating desktop software entirely?

The site presents Rebar as specialized HVAC estimating assistance that connects to other tools. Confirm which host systems and file types your team uses, because integrations vary by release.

How much does Rebar cost?

List pricing is not published on the public pages. Use the vendor demo request flow to obtain a quote for your user count, regions, and required integrations.

Can Rebar handle drawing addendums?

Marketing describes an addendum change summary so teams see what moved between issue sets. You should still verify against the contract documents for high-stakes bids.

Is Rebar only for United States HVAC vendors?

The site does not restrict geography in the hero copy, but data residency, language, and supplier integrations depend on your contract. Ask the vendor for regional deployment details.

What metrics can managers see inside Rebar?

Public materials reference estimating performance, bid volume, time on task, and product-line trends. Exact dashboard fields may change between releases.

Tutorials and learning

Sources

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