How to pick a WordPress development agency on evidence

Agencies with a verified published price

How to buy WordPress development you can maintain

1. Ask what the theme actually is. A custom theme, a child theme of a commercial parent, and a page builder layout are three different maintenance futures. Ask which one you are getting, who can edit it after launch, and what happens when the parent theme or builder makes a breaking change in a major release.
2. Count the plugins and who owns the licences. Every commercial plugin is a recurring cost and a dependency. Ask for the intended plugin list before the build, ask which licences will be registered in your account rather than the agency's, and ask what the plan is if one is abandoned by its developer.
3. Require version control and a staging path. Ask where the code lives, whether you get repository access, and how a change reaches production. Editing files on a live server is still common in this market and it is the reason emergency calls happen at inconvenient hours with no way to roll back.
4. Agree what maintenance means in writing. Core, theme and plugin updates, backups with a tested restore, uptime monitoring and a security response are separable services. Get each named with a frequency and a response window, because a monthly care plan can mean daily patching or an automated update email nobody reads.

What moves the price

Custom functionality moves it most. A marketing site assembled from existing patterns sits at one end; a build with custom post types, editorial workflows, membership or commerce, and integrations into systems you already run sits at the other, because each addition brings testing, edge cases and long-term maintenance somebody has to own. Ask which parts of your brief are configuration and which are code, since the two age very differently.

Editor experience moves it more than buyers expect. Building a site your team can actually update, with sensible block patterns, guardrails and documentation, is real work that never appears in a screenshot. Skipping it is the cheapest line to cut in a proposal and the most expensive one to live without, because every small change becomes a billable request.

Questions that separate the shortlist

Ask to see a site they built three years ago and still maintain, then look at whether it has evolved or frozen. Ask how they handle a plugin that goes unmaintained, and listen for whether they have a process or an anecdote. Ask what they would refuse to build in WordPress at all, because a firm with judgement will name something rather than treating the platform as universal.

Then ask about handover. The measure of a good WordPress engagement is that leaving is possible: repository access, licences in your name, documented deployment, and an editor guide your team can follow. Agencies that make leaving hard are describing a switching cost, and a switching cost is a price you pay later rather than a discount now.

Questions people actually ask

Custom theme or page builder?

It depends on who maintains the site. A custom theme gives cleaner code and predictable performance but usually needs a developer for structural change. A builder gives your team more control day to day and adds a dependency you cannot easily leave. Decide based on your in-house capability, not on the agency's preference.

How many plugins is too many?

There is no number, but every commercial plugin is a recurring cost, a dependency and a potential security surface. Ask for the intended list before the build starts, and ask what the plan is when one is abandoned. Licences should be registered to your accounts, not the agency's.

What should a WordPress care plan include?

Core, theme and plugin updates at a named frequency, backups with a restore that has actually been tested, uptime monitoring, and a security response with a defined window. Get each item named. A plan that says maintenance without specifics is priced on ambiguity.

Who should own the code and hosting?

You should. The repository, domain, DNS, hosting account and plugin licences belong in accounts you control, with the agency granted access. Confirm it in the contract rather than discovering the arrangement during a handover you did not plan.

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