WordPress Development

Custom WordPress Development Built to Drive Growth

From landing pages and custom themes to migrations and ongoing development, BrillMark supports WordPress projects of any size. With 10+ years of experimentation experience, we build websites that are easier to test, optimize, and convert.

  • Quick Turnaround Across WordPress Projects
  • Flexible Support That Adapts to Your Workflow
  • Reliable Support From Strategy to Launch
45,000+
Experiments supported
200+
Agencies and brands served
End-to-End
Development, QA, tracking, and delivery
White-Label
Ready to work under your agency’s brand

OUR SERVICES

WordPress Development Built for Performance

10+ Years of Experience. One Goal: Better Results.

Our WordPress Development Services Include

What we hear

  • “Every landing page needs a developer.”
  • “Our editors keep breaking the layout.”
  • “We hand over Figma files, but what comes back doesn’t look the same.”
  • “We keep fixing the same site issues over and over.”

What we do

Themes & Pages

We build the WordPress theme and editing experience together. Your team should be able to create and update pages without needing a developer every time—and without giving editors so much freedom that the design falls apart.
We turn Figma designs into responsive WordPress templates and create reusable blocks and fields that are easy for your team to work with.

  • Custom WordPress theme development
  • Figma to responsive WordPress development
  • Landing pages and campaign templates
  • Gutenberg and block development
  • Reusable block libraries and ACF field groups
How it works

HOW IT WORKS

A Process For Every Kind Of Website

  1. 01

    Share What You Need

    Send us a Figma file, requirements, existing page, or simply tell us what you want to improve.

  2. 02

    Build & Optimize

    We develop it in a safe environment, with performance and conversion in mind.

  3. 03

    QA & Validate

    We check responsiveness, functionality, tracking, browser compatibility, performance, and edge cases before launch.

  4. 04

    Approve & Launch

    Review the finished work through a preview link. Once you’re happy, we launch it—nothing goes live without your approval.

Ready to Discuss More About Your Website?

Book a 20-Minute Call

Buy Capacity The Way It Suits Your Program

Retainer or a Monthly block of hours, & Flexible Models to choose from. Fixed-scope pricing is also available for well defined projects.

FLEXIBLE

Block of hours

The lowest-risk way to start. Buy a block, use it against anything, no expiry pressure.

  • Use across any service
  • On-demand support
  • Tight budget control
  • Ideal first engagement
Start with a block

MOST POPULAR

Retainer partnership

For programs with a steady flow of tests, ecommerce teams and CRO agencies running continuous roadmaps.

  • Predictable monthly cost
  • Named dedicated resources
  • Priority queue
  • Quarterly roadmap review
Discuss a retainer

ONE-OFF

Project based

A defined scope with a defined timeline – a migration, a landing page suite, an analytics rebuild.

  • Fixed scope and timeline
  • Transparent pricing
  • Focused specialist team
  • Handover documentation
Scope a project

Hear it From The Teams We Work With

Gayla Worrell speaking on camera 1:30

I can’t imagine any other companies out there in a similar situation where we are that couldn’t benefit from the services that Brillmark offers.

Gayla WorrellCRO at Snap Finance
Amara Abara speaking on camera 1:10

Finding competent professionals to bring conversion research ideas to life and deliver results for clients without breaking their websites was challenging – until I found Brillmark. Abdullah and his team are a group of technical A-players with whom anyone serious about CRO and experimentation should work. I’ve collaborated with them on multiple projects, and they consistently prove they’re the real deal

Amara AbaraFounder at Conversion Central

Conversion Guides

I’ve worked with BrillMark’s developers since 2014. The abilities around high-velocity testing, quality on complex tests, and overall technical support for CRO are impressive. They’ve been my go-to team across dozens of clients and have become an integral part of how we deliver ROI
Jeremy EppersonFounder and CEO at Conversion Guides
1 / 7

Growth You Can Point To.

TopLids storefront

TopLids

128% increase in conversion rate

A Shopify migration and redesign built around a clearer, more scalable buying experience.

Shopify Migration · Redesign · Scalable UX

Floss Boss storefront

Floss Boss

Built for continuous experimentation

A modern storefront that helps the team launch improvements with less engineering dependency.

WordPress Development · Flexible Storefront

Hemp House storefront

Hemp House

Migration without losing momentum

SEO value, tracking, data, and subscriptions protected through a carefully managed cutover.

Ecommerce Migration · SEO Protection

Let’s Scope Your
Requirement.

Send us one hypothesis. We’ll come back with an estimate, an approach, and the QA plan —
usually within one business day.

  • A 20-minute call with an engineer, not a sales rep
  • A fixed estimate and technical approach in writing
  • A named QA plan before any code is written
  • Start with a block of hours — no long-term commitment

    Which Services Are You Interested In?

    FAQ

    WordPress Development

    What is the cost of WordPress Development Services?

    The cost of WordPress development services at Brillmark varies significantly depending on the scope of the project. Factors influencing the price include:
    Website Complexity: A simple blog or brochure website will be less expensive than a complex e-commerce site with custom features.
    Customization: Using a pre-designed theme with minor tweaks is cheaper than developing a custom theme from scratch.
    Functionality: Integrating specific plugins, APIs, or advanced features (e.g., membership systems, booking engines) will increase the cost.
    Content Creation: Whether you provide content or Brillmark creates it affects the overall cost.
    Project Timeline: Urgent projects might incur higher costs.
    Maintenance & Support: Ongoing support plans are priced separately.
    To get an accurate quote, you should contact BrillMark directly and discuss your specific requirements. They will likely provide a detailed proposal based on your needs. Expect a range, from a few hundred dollars for small tasks to several thousands (or even tens of thousands) for large, custom projects.

    How long does it take to develop a website?

    The development timeline is also project-dependent, similar to pricing. Here’s a general idea:
    Simple Website (e.g., blog, brochure site): 2-6 weeks.
    E-commerce Website: 6-12 weeks (or longer, depending on product complexity).
    Custom Web Application: Several months (or longer).
    Factors affecting the timeline include:
    Design Complexity: Custom designs take longer than using a pre-built theme.
    Content Availability: If content is delayed, the project will be delayed.
    Client Feedback: Prompt feedback from you is crucial to staying on schedule.
    Number of Revisions: More revisions to the design or functionality will extend the timeline.
    Brillmark will likely provide you with an estimated timeline in their project proposal after discussing your needs.

    What is included in your support plan?

    Support plans typically include:
    WordPress Core Updates: Ensuring your WordPress installation is up-to-date with the latest security patches and features.
    Plugin Updates: Keeping plugins updated to maintain compatibility and security.
    Theme Updates: Applying theme updates (if necessary).
    Security Monitoring: Monitoring for potential security threats.
    Website Backups: Regular backups of your website files and database.
    Technical Support: Assistance with technical issues, troubleshooting, and bug fixes.
    Content Updates (Potentially Limited): Some plans might include a limited number of content updates per month.
    Priority Support (Potentially Higher Tier): Faster response times for critical issues on higher-tier plans.
    The specific features and pricing of their support plans should be outlined on their website or in a separate document.

    Do you offer WordPress SEO services?

    Most WordPress development agencies offer SEO services, and it would be a good fit with their other services.
    SEO services typically include:
    Keyword Research: Identifying relevant keywords for your target audience.
    On-Page Optimization: Optimizing your website’s content and structure for search engines (e.g., title tags, meta descriptions, header tags, URL structure).
    Technical SEO: Improving website speed, mobile-friendliness, and overall technical health.
    Content Marketing: Creating high-quality, engaging content to attract and retain visitors.
    Link Building: Acquiring backlinks from other reputable websites.
    SEO Audits: Identifying areas for improvement on your website.
    SEO Reporting: Tracking your website’s SEO performance.
    Check with Brillmark specifically about the scope of their SEO services and pricing.

    What is a WordPress Plugin and why is it necessary?

    A WordPress plugin is a piece of software containing a group of functions that can be added to a WordPress website. They extend the functionality of WordPress, allowing you to add features without having to write code yourself.
    Plugins are necessary because they:
    Extend Functionality: Add features like contact forms, e-commerce capabilities, SEO tools, security enhancements, social media integration, and much more.
    Simplify Development: Avoid the need for custom coding, saving time and money.
    Provide Flexibility: Allow you to customize your website to meet your specific needs.
    Keep Core WordPress Lean: By using plugins, the core WordPress installation remains clean and efficient.

    What is the difference between WordPress.com and WordPress.org?

    The key difference is hosting and control:
    WordPress.com: A hosted platform where WordPress.com handles the technical aspects (hosting, updates, security). It offers different plans with varying features and limitations. You have less control over your website.
    WordPress.org: The open-source WordPress software that you download and install on your own web hosting account. You have complete control over your website, including themes, plugins, and hosting. This option requires more technical knowledge or hiring a developer.
    Brillmark likely focuses on WordPress.org because it allows for custom development, full control, and greater flexibility to meet client needs.

    Can you build a custom WordPress Theme?

    As a WordPress development agency, Brillmark almost certainly offers custom theme development services.
    Building a custom theme involves:
    Design: Creating a unique visual design for your website.
    Development: Coding the theme according to WordPress standards.
    Testing: Ensuring the theme is functional, responsive, and compatible with different browsers and devices.
    Optimization: Optimizing the theme for speed and performance.
    Integration: Integrating the theme with your content and plugins.
    A custom theme allows you to have a unique website that perfectly reflects your brand and meets your specific requirements.