What's the realistic agency cost to rebuild a GemPages-built funnel program into a hand-coded, faster-loading version?

Is there a published price for rebuilding a GemPages funnel program?

No published benchmark prices a hand-coded rebuild of a GemPages funnel program, so start from the counts any price is built from. What leaving GemPages does to your pages has its own answer. A range quoted without your page, section and custom-code counts is a guess, and you would take that guess into a budget meeting.

Two published numbers come close, and neither one is a quote:

• One agency's figure. The agency UpSolite, in a June 2026 post, lists a one-time native Liquid rebuild at $3,000 to $8,000, with no page count or scope attached (UpSolite, October 2026).
• A section library's timeline. The GemPages vs. Theme Sections record's illustrative estimate is 6 to 10 weeks for a library of 12 to 20 theme sections, with migration and marketing enablement last (Deploi Build vs. Buy, October 2026).

What should you count before you brief an agency?

Count four things in GemPages before you brief an agency, because each one becomes a line in the quote.

1. Published pages. Count live pages by type: landing, product and collection pages, plus Instant Landing Pages (ILP), which "will not appear on the Shopify administrative dashboard" (GemPages Help Center, October 2026). Count published pages, not templates, because test pages nobody unpublished inflate the library.
2. Saved Theme Sections. GemPages Theme Sections let you "save any part of your webpage, like banners or product displays, and reuse them on other pages with a click", and one edit updates every connected page (GemPages Help Center, October 2026). Each one becomes a Liquid section with schema settings, so every section you consolidate first is one you don't pay to build twice.
3. Custom code. GemPages' Custom Code element takes HTML (page markup), CSS (styling), JavaScript and Liquid, and code can also sit inside any existing element (GemPages Help Center, October 2026). GemPages' integration guide uses that element for apps with no GemPages element, and offers a no-code Shopify App element for "Shopify apps that work with your theme" (GemPages Help Center, October 2026). Where GemPages still needs a developer has its own answer.
4. Post-purchase offers. Count each live offer, because each one needs a new home once GemPages goes.

Where do the funnel's post-purchase offers go after the rebuild?

GemPages' post-purchase offers move to another post-purchase app or to a custom extension, because a hand-coded theme cannot draw Shopify's post-purchase page. Shopify lets a store use "only one checkout app to add post-purchase features at a time" (Shopify Help Center, October 2026). So the replacement app takes over the slot that GemPages' Sales Funnel held.

A custom extension is the slower route. Shopify's post-purchase extensions are in beta, and "to use post-purchase extensions on a live store, you need to request access" (shopify.dev, October 2026). Deploi's post-purchase upsell record scores renting the offer-testing loop BUY while offers are still in testing, and its illustrative estimate for a custom extension is 4 to 7 weeks (October 2026). Whether an upsell app such as Rebuy replaces GemPages' offers has its own answer.

Which exit tasks cost money whatever the page count?

Three exit tasks cost money whatever the page count: switching off GemPages' code, moving the pages GemPages hosts, and keeping the funnel measured.

• Switching off GemPages' code. GemPages' Uninstall Safely feature removes its code and turns every GemPages template to Draft (GemPages Help Center, October 2026), so run Uninstall Safely only after every replacement page is live.
• Moving hosted pages. Instant Landing Pages (ILP) run on a domain "hosted by ILP, not Shopify" (GemPages Help Center, October 2026). Moving them onto your Shopify domain takes a redirect map and new ad destination URLs, which makes it a revenue task on paid-traffic pages, not cleanup.
• Keeping the funnel measured. GemPages reports offer A/B tests inside its Sales Funnel (GemPages Help Center, October 2026), so save those results before the funnel goes off. Instrument the replacement, whether Google Analytics 4 (GA4), a session tool or Shopify's own reports, before you turn anything off.

How do you keep the funnel program running during the rebuild?

Keep the funnel program running by rebuilding in this order, so live campaigns never lose a page:

1. Count pages, Theme Sections, custom code and post-purchase offers, and put the counts in the agency brief.
2. Consolidate first, rebuild second. In our judgment, rebuilding forty pages that should be twelve sections with settings is the most expensive mistake in this project.
3. Rebuild sections, not pages. A Liquid section library with schema settings is the deliverable; marketing assembles pages from it afterwards.
4. Move the highest-traffic page first, and compare it with its GemPages version on real traffic before you commit the rest.
5. Stay on a paid GemPages plan while you still edit GemPages pages. GemPages suggests its Free plan over uninstalling, but with more than one published page, "re-publishing any of them will not be permitted" (GemPages Help Center, October 2026).
6. Run Uninstall Safely last, after nothing live depends on GemPages.

When should you not rebuild a GemPages funnel program at all?

Don't rebuild a GemPages funnel program when the reason is unmeasured or the timing is wrong, because a rebuild can faithfully reproduce the problem it was meant to fix.