Softwr

Construction · head to head

B2W Estimate vs GCPay

B2W Estimate logo

B2W Estimate

Construction

Heavy civil estimating and bidding built on crew, equipment and production rates rather than unit prices

From
On request
Rated
-
Full reviewWebsite
GCPay logo

GCPay

Construction

Subcontractor pay application and lien waiver exchange for general contractors in North America

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: B2W Estimate pricing is not published anywhere, and the quote depends on estimator seats plus which of the four other B2W modules you take, so like-for-like comparison with HeavyBid or spreadsheets is impossible without going through a sales cycle; GCPay the subcontractor is a compelled user who did not choose the tool, so adoption friction and support load fall on the general contractor, and small trades with one bookkeeper resent every extra portal.
  • They diverge on capability: B2W Estimate covers Production-rate estimating, GCPay covers Pay application workflow.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which B2W Estimate and GCPay actually diverge.

Attributes where B2W Estimate and GCPay differ
AttributeB2W EstimateGCPay
PlatformsWindows, WebWeb

Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (Construction).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in B2W Estimate

  • Production-rate estimating
  • Central resource database
  • Concurrent bidding
  • DOT bid file export
  • Alternates and addenda
  • Field feedback loop
  • Bid analysis

Only in GCPay

  • Pay application workflow
  • Lien waiver exchange
  • Compliance tracking
  • Change order management
  • ePayments
  • Retainage handling
  • ERP integration
  • Subcontractor portal

What people use each for

The jobs each tool is most often brought in to do.

B2W Estimate

  • A grading contractor bids a 40 million dollar DOT job and needs to test three crew configurations against the same quantities before the bid deadlinenot GCPay
  • A utility contractor wants the production rates used in the winning bid pushed into field logging so the superintendent is measured against the estimatenot GCPay
  • An estimating department with four estimators needs several people working on separate sections of one bid without merging spreadsheets by handnot GCPay
  • A contractor moving off HeavyBid wants a resource database it can reuse across estimating, dispatch and fleet maintenancenot GCPay

GCPay

  • A general contractor in a strict lien state that has been burned by a missing unconditional waiver and needs waiver status tied to each payment rather than filed in a shared drivenot B2W Estimate
  • A contractor whose accounts payable team spends the first week of every month rekeying pay applications from PDF emails into Sage or Viewpointnot B2W Estimate
  • An owner-facing GC that must produce a clean audit trail of who was paid what and when, with insurance compliance evidence attachednot B2W Estimate
  • A construction group standardising on Autodesk Construction Cloud that wants payment application data in the same estate as the project recordnot B2W Estimate

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

B2W Estimate

  • Pricing is not published anywhere, and the quote depends on estimator seats plus which of the four other B2W modules you take, so like-for-like comparison with HeavyBid or spreadsheets is impossible without going through a sales cycle
  • The system is worthless until your own crews, equipment and production rates are loaded, which is typically several months of a senior estimator's time before the first bid comes out
  • It is aimed squarely at heavy civil self-performing work, so a general contractor whose bids are mostly subcontractor quotes gets very little from the production-rate engine
  • The Trimble acquisition means the product now competes internally with other Trimble civil estimating assets, and buyers should ask directly about the long term roadmap for overlapping products before signing a multi-year term
  • Reporting outside the Inform module is limited, so organisations that want bid analytics across years typically end up buying another module or extracting to a warehouse

GCPay

  • The subcontractor is a compelled user who did not choose the tool, so adoption friction and support load fall on the general contractor, and small trades with one bookkeeper resent every extra portal.
  • Pricing is entirely quoted and keyed to annual subcontracted construction value, which means a contractor with a few very large subcontracts can pay far more than one with many small ones for identical functionality.
  • The ePayment fee structure is decided per general contractor, so a subcontractor cannot predict its cost of getting paid across clients and may be charged on one job and not another for the same work.
  • It is a payment and compliance system, not job costing; commitments still have to reconcile against the ERP, and integration gaps mean many contractors run a manual check anyway.
  • Autodesk acquired parent Payapps in 2024, and the strategic direction is convergence with Autodesk Construction Cloud, so buyers on Procore or a non-Autodesk stack should ask directly what the roadmap commitment to their platform is.

Pricing, plan by plan

B2W Estimate

On request
  • B2W Estimate$undefined/year
    • Priced per estimator seat with a separate server or hosting component
    • Additional B2W modules quoted separately
    • Implementation and resource database setup billed as a project

GCPay

On request
  • GCPay for General Contractors$undefined/year
    • Priced on project count, subcontractor count and annual subcontracted volume
    • Unlimited free subcontractor accounts
    • Lien waiver and compliance tracking
  • ePayments and Waiver Exchange$undefined/month
    • Per-transaction fee disclosed at submission
    • General contractor may absorb the fee or pass it to the subcontractor
    • Subcontractor must acknowledge the fee before submitting

Which should you pick?

Choose B2W Estimate if

  • You need production-rate estimating.
  • You work on Windows, Web.
  • You also want central resource database.
B2W Estimate review

Choose GCPay if

  • You need pay application workflow.
  • You also want lien waiver exchange.
GCPay review

Questions people ask

Is B2W Estimate or GCPay better?
Neither clearly leads. B2W Estimate starts at On request and GCPay at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, B2W Estimate or GCPay?
B2W Estimate starts at On request and GCPay at On request.
Does B2W Estimate or GCPay run on more platforms?
B2W Estimate runs on Windows, Web. GCPay runs on Web.
What is B2W Estimate best used for?
B2W Estimate is most often used for a grading contractor bids a 40 million dollar dot job and needs to test three crew configurations against the same quantities before the bid deadline, a utility contractor wants the production rates used in the winning bid pushed into field logging so the superintendent is measured against the estimate, an estimating department with four estimators needs several people working on separate sections of one bid without merging spreadsheets by hand, a contractor moving off heavybid wants a resource database it can reuse across estimating, dispatch and fleet maintenance. Of those, a grading contractor bids a 40 million dollar dot job and needs to test three crew configurations against the same quantities before the bid deadline and a utility contractor wants the production rates used in the winning bid pushed into field logging so the superintendent is measured against the estimate are not what GCPay is typically brought in for.
What can B2W Estimate do that GCPay cannot?
B2W Estimate covers Production-rate estimating, Central resource database, Concurrent bidding, DOT bid file export. GCPay covers Pay application workflow, Lien waiver exchange, Compliance tracking, Change order management.

Answered from the vendors’ own pages

B2W Estimate: Is B2W Estimate still sold under its own name?

Yes. Trimble acquired B2W in 2022 and continues to sell it as B2W Estimate within the Trimble Construction portfolio.

GCPay: Who pays for GCPay, the GC or the sub?

The general contractor pays the subscription. Subcontractor accounts are free. Only the optional ePayment and waiver exchange transaction fee can be passed to the subcontractor, and only with their acknowledgement.

B2W Estimate: Is there a perpetual licence?

Current sales are subscription based. Existing perpetual customers have been migrated toward subscription, so treat a perpetual arrangement as something to negotiate rather than assume.

GCPay: How much is the ePayment fee?

It is a flat per-transaction fee, disclosed at the point the pay application is submitted. GCPay has published a $15 figure for the ePayments and waiver exchange service, and the GC decides who bears it.

B2W Estimate: How does it compare with HeavyBid?

Both are production-rate estimators for heavy civil. B2W's argument is the shared resource database across estimating, field tracking, dispatch and maintenance; HeavyBid's is depth of bidding features and a large installed base in highway work.

GCPay: Is GCPay owned by Autodesk?

Yes. Autodesk agreed to acquire Payapps, which trades as GCPay in North America and Payapps elsewhere, in January 2024.

B2W Estimate: Does it work for building construction?

Poorly. It assumes self-performed work priced by crew output. Vertical builders bidding mostly subcontracted scopes should look elsewhere.

GCPay: Does it replace our construction accounting system?

No. It handles the application, approval and compliance workflow and then pushes approved payments into your ERP.

GCPay: Can subcontractors export their own records?

Subcontractors can download their submitted applications and waivers, but the project record belongs to the general contractor's account, so a sub should keep its own copies rather than rely on continued portal access.

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