ExpressionEngine Developer & Support in London

Expression 37 provides specialist ExpressionEngine support to London-based businesses that run their operations on a site they cannot afford to have fail. London businesses deal with high expectations from customers, intense competition, and websites that often carry more commercial weight than those in smaller markets. Whether you are in professional services, media, financial services, or ecommerce, a business-critical website that is quietly accumulating technical debt is a problem that needs resolving before it becomes urgent.

Most clients come to us with a site that has outgrown its current level of support. Either it was built by an agency that no longer looks after it properly, or it is running on an old version of ExpressionEngine that nobody has wanted to touch, or it has bespoke functionality that needs a developer who genuinely understands it. We work remotely with clients across London and take the time to learn each site properly before making changes. Most clients move to a monthly retainer once the initial work is done.

Who we typically work with:

• London businesses where the website is central to how they operate and generate revenue, and where downtime or broken functionality has a direct commercial cost.
• Companies that have outgrown their agency and want direct access to a specialist rather than being managed through account managers and passed to junior developers.
• Sites on older versions of ExpressionEngine that need a proper upgrade path, including add-on compatibility work and any bespoke module rewrites.
• Businesses with complex third-party integrations such as Stripe, Salesforce, HubSpot, or custom APIs that need ongoing maintenance and specialist knowledge to keep running.
• Owners who need a long-term partner, not a one-off fix, someone who learns the business, knows the system, and is there when something needs doing.

What working with Expression 37 typically looks like:

Most new clients start with a specific problem: an upgrade that has been put off, a broken integration, or a site left without proper developer support after an agency relationship ended. We work remotely with London clients throughout the project. The goal is to become the team that knows your system better than anyone, so you always have expert support when you need it.

Common questions:

Do you work with London businesses remotely?

Yes. All our client work is handled remotely, which suits London businesses well. There is no need for on-site visits for the vast majority of development and support work, and clients find that direct communication with the developer handling their site works better than dealing with an agency that manages the relationship at arm's length.

Can you take over an ExpressionEngine site built by another developer?

Yes. This is one of the most common starting points for new clients. We take on ExpressionEngine codebases built by agencies and other developers regularly, including sites with heavily customised templates, bespoke add-ons, and years of accumulated complexity. We take the time to understand what exists before making any changes.

My ExpressionEngine site is on an old version, can you upgrade it?

Yes. We have carried out upgrades across every major version of ExpressionEngine, from EE 2 through to the current version. This includes auditing and replacing add-ons that are no longer compatible, updating template code for current EE syntax, and testing thoroughly before anything goes live.

Do you support third-party integrations like Stripe, Salesforce or HubSpot?

Yes. Maintaining and extending third-party integrations is a core part of what we do. Whether that is a payment gateway, a CRM sync, a marketing platform, or a custom API, we can support it alongside the ExpressionEngine codebase itself.

How much does ExpressionEngine support cost?

Pricing depends on the nature of the work. We work on a project basis for one-off work such as upgrades and audits, and on a monthly retainer for ongoing support. A clear cost is agreed before any work begins, with no surprises.

What if something goes wrong with our site urgently?

Retainer clients receive priority response for urgent issues. For businesses without a retainer arrangement, we can often respond quickly to critical problems, but consistent priority access is part of what an ongoing retainer provides.

How do I get started?

The starting point is a brief conversation about the site: what it does, what version it is running, and what support currently looks like. We will give an honest assessment of what is involved before any commitment is made.

Ready to get started?

If your website is business-critical and needs a specialist who will take proper long-term ownership of it, get in touch. Karl will respond personally and give you an honest view of how we can help.