For an ordinary company site, one of four lightweight themes is a good pick: Astra, Kadence, Neve or Blocksy. Each has a free version that is enough to start with, each is maintained by a team that makes its living from the product, and each can be extended when the site grows. The differences between them are smaller than the rankings online suggest - what you build on top of the theme decides your site’s speed and looks far more than the theme itself.
Below I break the choice down into the factors that genuinely matter: what a theme does, what it costs a year in, and when a ready-made one is not worth reaching for.
What a WordPress theme is and what it is responsible for
A theme is the visual layer of the site: header and footer layout, typography, colours, the post grid, button and form styles. It is not responsible for content (that sits in the database) or for features like a store or a contact form (plugins handle those). Which is why switching themes does not delete your posts, products or orders - it changes the way they are shown.
That distinction matters when choosing, because the most common mistake looks like this: someone buys a huge all-in-one theme that brings its own page builder, its own slider, its own portfolio and its own testimonials. Two years later they want to change that theme, and it turns out half the site disappears with it. A lightweight theme plus separate plugins is a setup you can walk out of.
Astra, Kadence, Neve, Blocksy - the comparison
All four are light, fast, have a free version in the official WordPress directory and a paid Pro version. Here is what actually separates them.
| Theme | Free version | Strength | Where it stumbles | A good pick for |
|---|---|---|---|---|
| Astra | Yes, very extensive | The largest library of ready-made starter templates and the most tutorials online | Some settings are scattered around; the full set of options only arrives with Pro | A standard company site when you want a fast start from a ready pattern |
| Kadence | Yes, generous | The best built-in blocks (header, footer, form, tables) - fewer plugins to install | Fewer ready templates than Astra | Sites built on WordPress blocks, mid-sized WooCommerce stores |
| Neve | Yes | Very light code, good speed numbers on a clean install | Simpler in its options - with an unusual layout you hit the wall sooner | One-pagers, service pages, projects with a focus on speed |
| Blocksy | Yes, the most generous of the four | The most you can set by clicking without paying; a modern settings panel | Smaller community, fewer materials in Polish | People who want to fine-tune a lot themselves and do not want to pay up front |
If I had to name one default choice for a company with no special requirements: Kadence for a site built on WordPress blocks, Astra when you want to start from a ready template and have the most instructions within reach. Neve and Blocksy are not worse - they are simply less obvious when somebody else has to take the site over later.
What about OceanWP, Hestia and Divi
These are three names that keep coming back in search, and it is worth putting them on the right shelf straight away.
OceanWP is a solid, long-established theme with a huge number of options. Its model is buying individual extensions, so a year in you have a dozen or so extra plugins from one vendor on the site. You can work with it, you just have to resist switching everything on “because it is there”.
Hestia is a free one-page theme - fine for a quick one-pager, weak as the foundation for a site with an offer, a blog and service pages.
Divi is a different category: a theme with its own extensive visual builder. It has fans and real advantages, but also real consequences - getting out of it is expensive, and sites built on it tend to be heavy. I take it apart separately in the piece on whether Divi is worth it.
Free or paid theme - what it costs a year in
The free version of Astra, Kadence, Neve or Blocksy is enough to build a decent company site. You buy Pro when you need a specific thing: a conditional header, advanced archive layouts, store integrations or white-label mode.
Orders of magnitude worth keeping in mind (vendor price lists change every year, so check before you buy):
| Item | Billing model | Notes |
|---|---|---|
| Theme, free version | 0 PLN | Updates from the WordPress panel, no technical support |
| Theme Pro | Usually an annual licence, more rarely lifetime | The price rises with a multi-site licence |
| Companion plugins | Annual licences | These usually run up a bigger bill than the theme itself |
| Updates and maintenance | Your time or a retainer | The largest item over a longer horizon |
Important: a Pro licence pays for access to updates and support, not for the theme itself. If you do not renew it, the site keeps working but stops receiving fixes - and a year or two later compatibility problems show up. The same mechanism applies to plugins; I show it on a store example in the piece on the real cost of WooCommerce plugins.
How to choose a theme in twenty minutes
Instead of reading a tenth ranking, work through this list:
- Write down what the site has to do - how many pages, blog or not, store or not, multilingual or not, quote forms or not
- Reject anything outside the official WordPress directory and known vendors - themes from template marketplaces get abandoned, and an abandoned theme is a security hole
- Check the last update date and the number of active installs - both are visible in the directory; a theme not updated for a year is out
- Install two candidates on a test copy, not on the live site, and build the same single page in each
- Measure what you built - with PageSpeed Insights, on the mobile version; the differences show up immediately
- Pick the one you find your way around faster - in a technical tie, comfort wins, because you are the one clicking around that panel for years to come
If both come out slow after this exercise, the problem is almost never the theme - it is the server, the images or the number of plugins. I described the order in which to look for the culprit in the piece on choosing WordPress hosting.
What to avoid when choosing
- Multi-purpose themes with 60 ready-made demos - they bring a dozen vendor plugins with them and tie the site to a single supplier
- Buying a theme based on a screenshot of the demo - the demo is filled with stock photos and text of exactly the right length; your content will look different
- Installing themes from “free” bundles outside the directory - this is the most common route malicious code takes onto company sites
- Editing theme files without a child theme - your changes vanish at the first update
- Keeping five unused themes around - each one has to be updated, and an un-updated one is a potential way in for an intruder
Theme versus speed - what actually slows a site down
A theme affects speed, but less than vendor marketing says. All four start from a very similar level - the differences on a clean install are imperceptible to a visitor. What usually slows a site down is something else: uncropped photos, a page builder generating surplus code, a dozen plugins loading their own scripts on every page and cheap shared hosting.
Which is why, on a site that already exists and runs slowly, swapping the theme is the last step, not the first. Measure first, then fix in order of payoff. For stores I set that mechanism out in the piece on Core Web Vitals in WooCommerce.
When a ready-made theme stops being enough
A ready-made theme has a ceiling. You reach for a bespoke solution when:
- you have your own visual identity that cannot be reproduced with sliders in a settings panel
- you need unusual content types: a filterable project catalogue, a specialist directory, a configurator
- the site has to connect to your systems - ERP, warehouse, a B2B price list
At that point you usually do not build a theme from scratch, but a lightweight block theme for the specific project - cheaper to maintain than a huge bundle of ready-made parts of which you use ten percent. I lay the trade-offs out in the piece on a ready-made theme versus a custom design.
If you want to talk it through
I start with a free diagnosis: I look at your site, tell you straight whether the current theme is the problem or just a convenient scapegoat, and what will give the biggest effect for the smallest effort. No commitment and no pushing a rebuild if tidying up is enough.
For bigger work - a new site or moving off a heavy theme - you get the scope and the quote in writing before we start, as a fixed bid (typically around 5,000-10,000 PLN net, depending on the number of pages and integrations; Polish market rates). If after launch you want updates and backups off your mind, there is ongoing technical care in three tiers: Basic from 1,000, Pro from 2,000 and Premium from 3,500 PLN net per month.
Frequently asked questions
Which WordPress theme is the fastest? On a clean install, Astra, Kadence, Neve and Blocksy produce results so close together that naming a winner has no practical meaning. Your site’s real speed will be decided by images, the number of plugins, the page builder and hosting. “Fastest theme” tests usually measure an empty page that nobody will ever publish.
Is a free theme enough for a company? Yes, in most cases the free version of Astra, Kadence, Neve or Blocksy is entirely enough for a company site with an offer, a blog and a contact page. Buy Pro only when you hit a specific missing feature, not as a precaution. What matters is that the theme comes from the official WordPress directory and is actively developed.
Will switching themes delete my content? No. Posts, pages, products and orders live in the database and a theme change does not touch them. What can disappear are elements built with the theme’s own tools - sections from its builder, sliders, portfolios. That is why you make the change on a test copy and only move it to the live site after checking.
Does the theme affect SEO? Indirectly. The theme is responsible for heading structure, the mobile version and speed - and those are factors Google takes into account. Choosing Astra over Neve will not lift your rankings by itself; what will lift them is a properly built site, sensible content and technical hygiene, which is easier to maintain on a light, well-maintained theme.
Need something like this on your side? I design and build websites for B2B companies - from scratch or as a rebuild of what already stands. Send me the scope and a quote with a date comes back.