B2B Website Development Cost by Platform Explained

Two B2B companies can receive identical quotes of £40,000 for a website project. One will spend £50,000 over three years. The other will spend £120,000.

The difference is platform choice. B2B website development cost by platform is not just a build-day question. Ongoing maintenance, license fees, integration costs, and the cost of future changes all vary dramatically by platform, and most buyers are only looking at the first number.

Key Takeaways

• Build cost and total cost of ownership are different numbers: Webflow typically has a lower build cost and lower ongoing maintenance. HubSpot CMS has lower integration cost for existing HubSpot users but higher license fees. WordPress has the widest cost range and the highest maintenance overhead.
• Platform choice should follow your requirements, not cost alone: The cheapest platform to build on is not always the cheapest to own, or the right fit for how your team will use the site.
• Custom builds cost 40 to 100% more than platform builds for equivalent functionality: Reserve custom development for workflows that genuinely cannot be served by available platforms.
• License costs compound over time: A £600-per-month HubSpot CMS license adds £21,600 over three years. This must appear in any platform cost comparison.
• Integration costs are platform-dependent: A HubSpot website integrates with HubSpot CRM at near-zero additional cost. The same integration on Webflow adds £2,000 to £5,000 to the build budget.

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What Is the Total Cost Range Across Platforms?

For a broader view of B2B website development cost by project tier, that guide covers the full range from early-stage to enterprise. If you want to understand how the build cost is distributed across design, development, and integration, the detailed cost breakdown article runs through each component.

The comparison below covers a mid-complexity B2B website with ten to twenty pages and one CRM integration.

• Why the ranges within each platform are wide: Scope, integration complexity, page count, and agency day rates all vary independently of platform choice. A Webflow build for a 5-page site and a 20-page site are very different projects.
• The most common comparison mistake: Evaluating Webflow and WordPress on build cost alone without modeling the three-year maintenance differential. Webflow's lower maintenance overhead changes the total cost comparison significantly.
• What maintenance cost includes: Security updates, plugin updates for WordPress, CMS platform updates, minor content fixes, performance monitoring, and annual platform health reviews. These are real ongoing costs, not optional extras.

The three-year total is the right comparison frame. The build-day quote comparison is not.

How Do Webflow and WordPress Compare on Cost?

The full Webflow vs WordPress comparison covers capability and fit beyond cost. If you are evaluating both for your specific requirements, that article covers what each platform can and cannot do for a B2B context.

Cost comparison between these two platforms depends significantly on your functional requirements and whether you have an in-house developer.

• Webflow build cost advantage: Lower developer cost because the visual builder reduces engineering time. Typical range is £18,000 to £45,000 for a mid-complexity B2B site.
• WordPress functional flexibility: Plugin ecosystem reduces cost for standard requirements, but higher developer cost for custom functionality. Typical range is £20,000 to £55,000 for an equivalent build.
• Maintenance differential is significant: Webflow maintenance runs £1,200 to £3,600 per year with hosting included in the Webflow plan. WordPress maintenance runs £3,000 to £8,000 per year with plugin updates, security patches, and separate hosting costs.
• Integration costs differ by platform: Both platforms support CRM integrations, but Webflow integrations often require third-party middleware adding £500 to £2,000 per year in tool costs. WordPress has direct plugin-based integrations for most major CRMs.
• Content editing experience matters: Webflow CMS is more intuitive for non-technical editors. WordPress Gutenberg has more flexibility but a steeper learning curve for complex page layouts.

For teams without in-house developers who need to update content regularly, Webflow's lower maintenance overhead and more intuitive CMS typically produce the lower three-year cost.

How Does HubSpot CMS Compare on Total Cost of Ownership?

The full HubSpot vs Webflow comparison covers the decision criteria beyond cost, including the marketing workflow and integration factors that affect platform fit.

HubSpot CMS has a lower build cost for existing HubSpot customers, but the license cost reality changes the three-year picture significantly for new customers.

• HubSpot CMS build cost: £15,000 to £40,000 for a mid-complexity B2B site. Lower than Webflow or WordPress for businesses already on HubSpot because CRM and marketing automation integration is built in.
• The license cost reality: HubSpot CMS Hub starts at approximately £300 per month at Starter tier and reaches £900 to £3,000 per month at Professional and Enterprise tiers. This adds £3,600 to £36,000 per year on top of the build cost.
• When HubSpot CMS makes financial sense: If you are already paying for HubSpot Marketing Professional or Enterprise, the CMS Hub is often included or heavily discounted. The incremental cost is minimal and the integration value is high.
• When it does not make financial sense: If you are not already a HubSpot customer, paying license costs purely for the CMS typically costs more over three years than Webflow or WordPress with a separate HubSpot integration.
• Migration cost from HubSpot: Switching away from HubSpot CMS to another platform involves content migration, URL redirect mapping, and integration rebuilds. Plan for £5,000 to £15,000 in switching costs if you outgrow the platform.

The HubSpot CMS decision is almost entirely determined by whether you are already a HubSpot customer. If yes, it is often the lowest-cost option. If no, it is rarely the lowest-cost option over three years.

What Does a Custom-Built B2B Website Cost?

Custom builds are appropriate for genuinely proprietary requirements that no available platform can meet. They are not appropriate for "we want more control" or "we do not like CMS limitations."

A production-ready custom B2B website costs £50,000 to £150,000. Complex platforms with custom CMS, integrations, and interactive functionality run £150,000 or more.

• What custom means in practice: No off-the-shelf CMS. A purpose-built content management system, custom templating, custom integrations, and bespoke functionality that cannot be replicated on standard platforms.
• When custom is justified: Genuinely proprietary content architecture, complex configurators, real-time data feeds, deep integration with custom internal systems, or regulatory requirements that standard platforms cannot meet.
• When custom is not justified: Preferences about control and flexibility that standard platforms can accommodate with proper configuration. Most "we need custom" requirements can be served by Webflow or WordPress.
• Ongoing cost reality: Custom builds require ongoing developer resource for updates, security, and content type changes. Budget 15 to 20% of build cost per year. A £100,000 custom build costs £15,000 to £20,000 per year to maintain.
• Migration risk: Custom platforms are harder to migrate away from. Factor in long-term vendor dependency if the original developer or agency relationship ends.

A custom build at £100,000 with £17,500 per year in maintenance costs £152,500 over three years. A Webflow build at £35,000 with £2,400 per year in maintenance costs £42,200 over the same period. That difference requires a compelling business case.

What Platform-Specific Costs Are Most Commonly Missed?

Hidden and commonly overlooked platform costs appear after the build and inflate total cost of ownership above what was budgeted.

• Webflow hidden costs: Annual CMS and hosting plan at £288 to £876 per year. Third-party integration middleware if native connectors are not available. Custom code maintenance for any JavaScript or advanced interactions added during the build.
• WordPress hidden costs: Hosting at £600 to £3,600 per year depending on traffic and performance requirements. Premium plugin licenses at £300 to £1,500 per year for common marketing and SEO plugins. Developer time for security updates and plugin conflicts.
• HubSpot CMS hidden costs: License fee escalation as your contact database grows and you move between tiers. Professional services costs for advanced HubSpot configuration. Limited ability to host on preferred infrastructure.
• All platforms: Annual SSL certificate renewal, analytics platform costs beyond GA4 for advanced tools like Heap or Amplitude at £3,000 to £15,000 per year, and performance monitoring tool subscriptions.
• Content update costs across all platforms: If your team cannot update the CMS without developer support, budget for a monthly developer retainer at £500 to £2,000 per month. This is a hidden cost that compounds across all platforms if the CMS is not properly configured for non-technical editors.

The content update cost is the most consistently missed. If your marketing team needs a developer to change a headline, that cost recurs every week indefinitely.

Which Platform Should You Choose?

There is a detailed CMS selection guide written specifically for non-technical founders and marketing leads that covers the decision in full.

The right platform follows your requirements, team capability, and total cost of ownership budget.

• Choose Webflow if: Your team needs to update content regularly without developer support, your website requirements are primarily marketing-led with standard integrations, you want low ongoing maintenance overhead, and your budget is in the £18,000 to £45,000 range.
• Choose WordPress if: You need extensive custom functionality beyond standard marketing requirements, you have an in-house developer or technical team, and your requirements include complex content types or plugin-dependent functionality.
• Choose HubSpot CMS if: You are already a HubSpot customer and the CMS Hub is included in your license, your primary goal is tight integration between your website and your CRM or marketing automation workflow, and your budget accounts for ongoing license costs.
• Choose a custom build if: Your website requirements genuinely cannot be met by any available platform, you have budget for £80,000 or more and ongoing developer resource, and you are building a product-led experience rather than a marketing website.
• The question that decides most cases: Can your marketing team update the website without calling a developer? If that answer must be yes, Webflow is almost always the right answer for a B2B marketing site.

Platform fit for your team matters as much as platform cost. A cheaper platform that requires a developer for every update often costs more in total than a slightly more expensive platform your team can manage independently.

Conclusion

Platform choice is a three-year financial decision, not a build-day preference. The right platform is the one that fits your team's capability, your marketing requirements, and your total cost of ownership budget.

Calculate the three-year TCO for the two platforms most relevant to your requirements using the ranges in this article. If the difference is less than £10,000, platform fit for your team becomes the deciding factor. If the difference is more than £10,000, the financial case is clear and the platform decision should follow the numbers.

B2B Website Development

Websites That Win Enterprise Clients

We build high-converting B2B websites with modern no-code technology—designed to generate leads, build trust, and support your sales team.

Let's talk

Platform Advice That Starts With Your Requirements, Not Our Preferences

Most agencies recommend the platform they find easiest to build on, not the one that fits your team's needs or your three-year budget. That difference matters a great deal over time.

At LowCode Agency, we are a strategic product team, not a dev shop. We build on Webflow, WordPress, and HubSpot, and we recommend the platform that fits your requirements, not the one we find most familiar.

• Platform-agnostic recommendation: We assess your team's capability, marketing requirements, integration needs, and three-year budget before recommending any platform. The recommendation follows the requirements.
• Three-year TCO modeling: Every platform recommendation we make is accompanied by a three-year total cost of ownership model so you can see the full financial picture before committing.
• Integration cost scoped against your actual stack: We estimate integration costs against your specific CRM, marketing automation, and analytics tools, not generic line items that bear no relation to your configuration.
• CMS training as a deliverable: We configure and document the CMS so your marketing team can update content without developer support. This is a scoped deliverable, not an assumption.
• Hidden cost identification: We surface the commonly missed costs, plugin licenses, middleware subscriptions, content update developer time, before the project starts rather than after you have signed off on a budget.
• Migration planning when relevant: If you are moving from one platform to another, we scope the content migration, redirect mapping, and integration rebuild costs explicitly. Switching costs are part of the decision, not a surprise after it.
• Full product team: Strategy, UX, development, and QA from a single team that approaches platform selection as a financial and operational decision, not a technical preference.

We have built 350+ products for clients including Coca-Cola, American Express, Sotheby's, Medtronic, Zapier, and Dataiku. You can see examples of each platform in our client work. If you are about to make a platform decision for a B2B website development project and want an honest recommendation, get in touch.