How much does it cost to build an ecommerce site?

It depends on scope, platform, catalog size, B2B rules, and integrations, so we scope it on a short call and send a fixed proposal before any work starts, rather than putting a number on a page. The market ranges in the next answers show where most builds land.

Do you bill hourly for ecommerce builds?

No. We quote a fixed proposal after scoping, paid against milestones. You know the investment before work begins, with no surprise invoices.

What drives the cost of an ecommerce build?

The platform, your catalog size, whether you run DTC, B2B, or both, the integrations you need (ERP, POS, 3PL, marketplaces), data migration from an existing store, and any AI agents we build and implement.

How much do SEO services cost?

Small businesses typically pay $1,500 to $3,500 a month for SEO, according to WebFX. Your scope depends on your website, locations, services, competition, and implementation needs, so our written proposal separates initial setup, ongoing deliverables, and any third-party costs before work starts.

What should I check in a no-contract SEO proposal?

Check the minimum term, cancellation notice, setup work, monthly deliverables, and ownership of accounts and content. No-contract should not mean unclear obligations. Our written proposal sets out the engagement terms so you can compare scope and commitment, rather than relying on a headline promise.

Are tools, advertising, and third-party subscriptions included?

The proposal identifies included work and any separate costs. Depending on the project, these may include hosting, platform subscriptions, apps, reporting tools, or paid media. Ask for recurring costs and one-time costs separately. Additional work and costs are agreed before that work begins.

Do you guarantee rankings or revenue?

No. We agree the implementation scope and reporting, but search rankings and customer revenue depend on factors outside any agency’s control. We track visibility and inquiries against a baseline, and work with your team to distinguish useful leads from sales outcomes.

How much does a small online store cost to launch?

A small store on a pre-built theme with minimal customization can launch for about $1,000 to $5,000, according to BigCommerce’s ecommerce cost guide. That budget assumes few integrations and a modest catalog.

What does a store with custom design and integrations cost?

Small to mid-sized businesses that need custom design, integrations, and light backend work typically invest $5,000 to $25,000, according to BigCommerce.

What does a custom or headless ecommerce build cost?

Custom and enterprise ecommerce builds run $25,000 to $250,000 or more, according to BigCommerce, and Shopify agency CartCoders prices a headless Shopify build at $60,000 to $200,000.

How much does a custom Shopify store cost?

A fully custom Shopify store build typically costs $8,000 to $35,000, according to Shopify agency CartCoders’ 2026 cost breakdown. Theme-based stores with light customization cost less.

How much does a Shopify Plus build cost?

CartCoders’ general cost guide puts a Shopify Plus store at $40,000 to $120,000 or more, while its Shopify Plus hiring guide says a full build usually costs $15,000 to $45,000. The gap is scope: B2B, integrations and migration push builds toward the top.

What do Shopify’s own plans cost each month?

Shopify lists Basic at $29, Grow at $79 and Advanced at $299 a month billed yearly, and Shopify Plus at $2,300 a month on a three-year term. Apps, themes and payment fees are extra.

How much does a WooCommerce or WordPress site cost?

Agencies charge $3,000 to $100,000 for a WordPress site and freelancers $500 to $5,000, according to WebFX. WooCommerce stores sit inside that range depending on catalog and integrations.

How much does a small business website cost?

A small business website costs $1,000 to $48,000 on average, and small agencies typically charge $6,000 to $12,000, according to WebFX.

How much does a website redesign cost?

A website redesign costs $3,000 to $75,000, with agencies charging $5,000 to $75,000 and freelancers $3,000 to $10,000, according to WebFX.

How much does ecommerce SEO cost?

Ecommerce SEO costs $500 to $7,500 a month on average, with 71% of businesses in that range, according to WebFX’s pricing data.

How much does AI SEO or generative engine optimization cost?

Agency-run generative engine optimization costs about $1,500 to $5,000 a month for a small business and $5,000 to $25,000 or more for a mid-sized one, according to WebFX’s 2026 pricing guide.

How much does a custom AI agent cost to build?

Building a custom AI agent costs roughly $5,000 to more than $180,000, according to development firm ProductCrafters’ 2026 breakdown. One narrow workflow sits at the low end; agents that touch an ERP, several systems and approvals sit higher.

What does it cost to sell on Walmart Marketplace?

Walmart charges no setup or monthly fee and takes a referral fee of 3% to 20% of each sale depending on category, with 15% common, according to Walmart Marketplace’s fee page.

Pricing

Know the scope before you commit.

Whether you need more search inquiries or a new commerce system, start with the work your business needs. We document deliverables, fees, and engagement terms before work starts. Choose your service below to see what shapes the proposal.

Talk to the Founder

SEO and AI search

Scope the search work your business needs.

A local service business and a large ecommerce catalog need different work. We start with your website, the customers you want, and how inquiries reach your team. Your proposal turns those findings into specific deliverables.

What changes the scope

Locations, service areas, and the services or products you want found.
Technical fixes, content gaps, and access to your website and listings.
Whether our team implements changes or works with your developer.
Tracking for calls, forms, booked meetings, and lead qualification.

What the proposal should make clear

Initial work and the ongoing monthly deliverables.
Fees, third-party costs, and how additional work is approved.
Review cadence, account ownership, minimum term, and cancellation notice.
What we measure, the starting baseline, and who reviews lead quality.

Explore SEO and AI search services →

What drives an ecommerce project quote

A few things move the number more than anything else.

Platform

Shopify and Shopify Plus, Adobe Commerce (Magento), BigCommerce, WooCommerce, headless, or Commerceflo by FactoryJet. We recommend the fit, not the priciest option.

Catalog size

The number of products, variants, and attributes, and how often they change across channels.

DTC, B2B, or both

Trade buyers need tiered pricing, net terms, account hierarchies, and reordering on top of the retail store.

Integrations

ERP, POS, 3PL, and marketplace connections that put every system on one order and inventory layer.

Migration

Moving products, customers, orders, and B2B pricing off an existing platform, with redirects that protect your rankings.

AI agents

Agents we build and implement that list, reprice, sync stock, and reconcile feeds across your channels.

How we quote a commerce build

Discovery & scope

We map your channels, catalog, and B2B rules and agree exactly what we are building.

Fixed proposal

You get a written, fixed proposal with scope and milestones before any work begins.

Milestone build

We design, build, and integrate against the agreed scope, paid per milestone.

Launch & ownership

We launch, hand over the code and accounts, and stay on to support and scale.

See our e-commerce development services or read how we think about what an ecommerce build costs.

Three things buyers ask about before they sign

HIPAA-aware builds for health businesses

For clinics, dental groups and other health businesses, we scope which pages and forms handle patient information before we quote, and plan forms, booking and tracking tools around the HHS guidance on online tracking technologies. Your practice remains the covered entity responsible for HIPAA compliance.

Source: HHS Office for Civil Rights, online tracking technologies guidance

ADA-compliant, WCAG-based accessibility

We design and build to the Web Content Accessibility Guidelines (WCAG 2.2), which the Justice Department’s ADA web guidance names as a helpful technical standard. That covers colour contrast, image text, captions, labelled forms and menus that work by keyboard.

Source: ADA.gov, Guidance on Web Accessibility and the ADA

Your code in your GitHub repository from day 1

The code lives in a GitHub repository you own from the first day of the build, not at launch. You also own the design files, content, store and accounts. Hosting and AI usage can run in your own accounts at cost, with no markup.

Every cost guide on this site

Each guide quotes market ranges with named sources, never our prices. Calculators, platform comparisons and migration guides sit in the last column.

Websites and stores (US)

Search, ads and marketplaces

AI agents and automation

UK, Australia and other markets

Calculators, comparisons and migrations

Definitions for the terms in these guides are in the glossary, broader questions in the FAQ, and finished work in the portfolio.

Pricing questions

20 questions. Dollar figures are US market ranges from the named source, read on 30 September 2026. They are not FactoryJet prices.

How much does it cost to build an ecommerce site?: It depends on scope, platform, catalog size, B2B rules, and integrations, so we scope it on a short call and send a fixed proposal before any work starts, rather than putting a number on a page. The market ranges in the next answers show where most builds land.
Do you bill hourly for ecommerce builds?: No. We quote a fixed proposal after scoping, paid against milestones. You know the investment before work begins, with no surprise invoices.
What drives the cost of an ecommerce build?: The platform, your catalog size, whether you run DTC, B2B, or both, the integrations you need (ERP, POS, 3PL, marketplaces), data migration from an existing store, and any AI agents we build and implement.
How much do SEO services cost?: Small businesses typically pay $1,500 to $3,500 a month for SEO, according to WebFX. Your scope depends on your website, locations, services, competition, and implementation needs, so our written proposal separates initial setup, ongoing deliverables, and any third-party costs before work starts.Source: WebFX, SEO Pricing
What should I check in a no-contract SEO proposal?: Check the minimum term, cancellation notice, setup work, monthly deliverables, and ownership of accounts and content. No-contract should not mean unclear obligations. Our written proposal sets out the engagement terms so you can compare scope and commitment, rather than relying on a headline promise.
Are tools, advertising, and third-party subscriptions included?: The proposal identifies included work and any separate costs. Depending on the project, these may include hosting, platform subscriptions, apps, reporting tools, or paid media. Ask for recurring costs and one-time costs separately. Additional work and costs are agreed before that work begins.
Do you guarantee rankings or revenue?: No. We agree the implementation scope and reporting, but search rankings and customer revenue depend on factors outside any agency’s control. We track visibility and inquiries against a baseline, and work with your team to distinguish useful leads from sales outcomes.
How much does a small online store cost to launch?: A small store on a pre-built theme with minimal customization can launch for about $1,000 to $5,000, according to BigCommerce’s ecommerce cost guide. That budget assumes few integrations and a modest catalog.Source: BigCommerce, “Ecommerce website cost”
What does a store with custom design and integrations cost?: Small to mid-sized businesses that need custom design, integrations, and light backend work typically invest $5,000 to $25,000, according to BigCommerce.Source: BigCommerce, “Ecommerce website cost”
What does a custom or headless ecommerce build cost?: Custom and enterprise ecommerce builds run $25,000 to $250,000 or more, according to BigCommerce, and Shopify agency CartCoders prices a headless Shopify build at $60,000 to $200,000.Source: BigCommerce, “Ecommerce website cost”
How much does a custom Shopify store cost?: A fully custom Shopify store build typically costs $8,000 to $35,000, according to Shopify agency CartCoders’ 2026 cost breakdown. Theme-based stores with light customization cost less.Source: CartCoders, “Shopify Developer Cost Breakdown for 2026”
How much does a Shopify Plus build cost?: CartCoders’ general cost guide puts a Shopify Plus store at $40,000 to $120,000 or more, while its Shopify Plus hiring guide says a full build usually costs $15,000 to $45,000. The gap is scope: B2B, integrations and migration push builds toward the top.Source: CartCoders, “Shopify Developer Cost Breakdown for 2026”
What do Shopify’s own plans cost each month?: Shopify lists Basic at $29, Grow at $79 and Advanced at $299 a month billed yearly, and Shopify Plus at $2,300 a month on a three-year term. Apps, themes and payment fees are extra.Source: Shopify, “Ecommerce Website Cost: Full Guide for 2026”
How much does a WooCommerce or WordPress site cost?: Agencies charge $3,000 to $100,000 for a WordPress site and freelancers $500 to $5,000, according to WebFX. WooCommerce stores sit inside that range depending on catalog and integrations.Source: WebFX, “How Much Does a WordPress Website Cost in 2026”
How much does a small business website cost?: A small business website costs $1,000 to $48,000 on average, and small agencies typically charge $6,000 to $12,000, according to WebFX.Source: WebFX, small business website cost (archived 12 Jul 2026)
How much does a website redesign cost?: A website redesign costs $3,000 to $75,000, with agencies charging $5,000 to $75,000 and freelancers $3,000 to $10,000, according to WebFX.Source: WebFX, Website Redesign Pricing
How much does ecommerce SEO cost?: Ecommerce SEO costs $500 to $7,500 a month on average, with 71% of businesses in that range, according to WebFX’s pricing data.Source: WebFX, Ecommerce SEO Pricing
How much does AI SEO or generative engine optimization cost?: Agency-run generative engine optimization costs about $1,500 to $5,000 a month for a small business and $5,000 to $25,000 or more for a mid-sized one, according to WebFX’s 2026 pricing guide.Source: WebFX, “How Much Does Generative Engine Optimization Cost in 2026”
How much does a custom AI agent cost to build?: Building a custom AI agent costs roughly $5,000 to more than $180,000, according to development firm ProductCrafters’ 2026 breakdown. One narrow workflow sits at the low end; agents that touch an ERP, several systems and approvals sit higher.Source: ProductCrafters, “AI Agent Development Cost”
What does it cost to sell on Walmart Marketplace?: Walmart charges no setup or monthly fee and takes a referral fee of 3% to 20% of each sale depending on category, with 15% common, according to Walmart Marketplace’s fee page.Source: Walmart Marketplace, Referral fees