13design interactive agency
Build your place on the web with us
We design and build websites, online shops and course platforms on WordPress, create visual identities and make sure everything keeps running smoothly long after launch. One team – from the first sketch to ongoing care.
WordPress websites ✱ WooCommerce shops ✱ Course platforms ✱ Branding ✱ SEO & AI ✱ WCAG accessibility ✱ Automation ✱ Technical care ✱
About the agency
Companies come to us after bad experiences. They stay for years.
Most clients arrive with a specific problem: a website that can’t be edited, a shop that loses orders, a contractor who stopped answering the phone. We start by sorting out what’s there – and then build what’s missing.
13design is a team of graphic designers, web developers and marketers led by Sylwia Stein. We design for business goals, not for our portfolio – and we stay after launch, because a website is a process, not a one-off project.
11
service areas under one roof
14
years on the market
3
ongoing technical care plans
4
stages of cooperation – no surprises
Services
From the first sketch to ongoing care
We build new projects and rescue existing ones. Prices are a starting point – you get an exact quote after a short conversation about the scope.
We build and design
01
Websites, shops and course platforms
WordPress and WooCommerce designed for enquiries and orders, not for pretty screenshots.
from PLN 1,500
02
Turnkey online course
Platform, payments, lesson access and post-purchase emails – a course ready to sell.
from PLN 4,500
03
Visual identity and graphic design
Logo, brand book, e-books, catalogues and print-ready materials.
from PLN 250
04
Newsletter and automation
MailerLite, ManyChat, Make and Zapier – sign-ups, sales and customer service that run on their own.
from PLN 500
05
SEO and AI visibility
Technical SEO, content and structured data that help Google and AI assistants find you.
from PLN 1,000
We fix and look after
06
Website audit
A spreadsheet report: a separate tab for each of the 18 categories and fixes ranked by priority.
PLN 1,000
07
Speed optimisation
Core Web Vitals, caching, lighter images and a tidy plugin setup.
from PLN 500
08
Malware removal and security
We remove malicious code, patch vulnerabilities and close the way back in.
from PLN 500
09
WCAG and EAA accessibility
A website that works for everyone and complies with the European Accessibility Act.
from PLN 1,500
10
Technical care and migrations
Updates, backups, monitoring and moving to a new server.
from PLN 350 / month
11
WordPress emergency
White screen, critical error, broken shop – we bring your website back to life.
from PLN 500
Our work
Projects that work
for our clients
Websites, shops, logos, e-books and catalogues – see what it looks like in practice.
How we work
Four stages. No guesswork.
At every stage you know what’s happening, what it costs and when it will be ready.
01
Conversation
We get to know your business, your customers and your goal. If you already have a website, we start by reviewing it.
02
Quote and plan
Scope of work, schedule and price in writing – before we start anything.
03
Design and build
We design, build and test on a staging copy. You approve before anything goes live.
04
Launch and care
We launch, show you how everything works and stay on with ongoing care – if you want us to.
Reviews
They come back and recommend us
Most new projects come to us through referrals. Here’s what our clients say.
I came to Sylwia after a series of very bad experiences with external companies building my website and shop. Suddenly I found myself in a place where everything happens remarkably professionally, efficiently and with respect for the client’s needs and vision. Sylwia’s competence and drive are invaluable – not only does everything run smoothly, I also really enjoy learning from her knowledge. We’ve been working together for 6 years and there hasn’t been a single request or problem Sylwia didn’t respond to immediately – from a small tweak in the footer to changing the website theme. An out-of-this-world brain and tech expert. I recommend her with all my heart.
Thank you so much for such professional cooperation! I’ve worked with 4 agencies and only 13design did everything to make me happy! Contact faster than the speed of light, designs and revisions carried out reliably according to my suggestions! Not to mention the beautiful print and fast delivery. Thank you again – thanks to you I know there are still companies that do a ‘good job’! Congratulations – I will recommend you!
I’ve been working with Sylwia for quite a while on my blog and the course platform she built for me. She is professional, has a great sense of style and – what matters most to me – is wonderfully easy to reach, practically at any time of day or night. She once rescued my blog in the middle of the night and at weekends. I also recommend her design services – she created a lovely logo and business cards for me.
I’ve been using Sylwia’s technical support for several years. I really value her work, expertise, communication and fast action. She is always ready to help, especially in a crisis. She comes up with different solutions, offers options and never leaves you on your own. I’m very grateful for her professionalism and knowledge – and for her openness to talk and help find THE solution we need. I recommend Sylwia with all my heart.
I have been working with Sylwia Stein for several years, on technical support for a WordPress website with a WooCommerce shop. During this time Sylwia has proven to be not only a highly qualified specialist, but also an open, flexible and trustworthy person. All tasks were completed on time and flawlessly. The cooperation has always been friendly and pleasant. She can explain difficult technical issues in plain language. It’s a great comfort knowing the website is in good hands. That’s why I recommend Sylwia Stein to people and organisations looking for a top-class professional who is also an efficient, communicative specialist in building and supporting websites.
I highly recommend Sylwia and her team! I used their services to update my website, move it to another server, and she helped me choose new hosting and domain providers. Our cooperation was VERY professional, specific and on time, with excellent communication. I will definitely keep using the services of Sylwia and her team.
I recommend Sylwia and her WordPress company. She has enormous technical knowledge, an excellent portfolio and a smart team that always responds on time. She’s also by far the best communicator in WP: I always know what stage the project is at and what the deadline is. I recommend her with a clear conscience.
Working with Sylwia is a pure pleasure. I’ve asked for her help several times and every time I could count on full commitment, patience and expert knowledge. Sylwia analyses the situation thoroughly, checks every detail and explains step by step what she is doing or what needs to be done. At first I was worried about giving access to my websites to someone I didn’t know personally, but today I know I couldn’t have chosen better. I wholeheartedly recommend Sylwia to anyone who needs professional support with their websites. I will certainly come back to her many times, because I finally feel ‘looked after’ and know there’s someone who will help me.
Ongoing care
Your website in good hands, you – focused on your business
A monthly plan for websites, shops and course platforms. Choose the plan that fits the size of your site.
Basic
PLN 350 / month
For company websites and blogs
- Website uptime monitoring
- Updates at least once a week
- Website check after every update
- Backups
- 10% off additional work
Premium
PLN 1,000 / month
For shops and larger websites
- Everything in the Basic plan
- Website speed monitoring
- Malware scanning
- 20% off additional work
VIP
PLN 3,000 / month
For demanding projects
- Updates at least twice a week
- Everything in the Premium plan
- Up to 20 h of technical support per month – e.g. student passwords and access
Need one-off help? See our WordPress emergency service or website audit.
Blog
Practical tips on websites, marketing and WordPress
We write about what clients ask us most often – before they ask.
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What materials does an agency need to start work on a website?
An agency needs a lot of information from the client to start working on a website. Below is a list of materials…
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Can you build a business without social media?
Building a business without social media is possible, but it takes a lot of effort and a strategy to win customers and…
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Keyword research for SEO
Nowadays, when most people look for information online, it’s important that your website is easy to find in search results. To achieve…
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Why it’s worth having your own website even if you’re active on social media
These days most people spend a lot of time online, using various social platforms. Yet although social media are a very important…
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Why build an online shop with WooCommerce
WooCommerce is a WordPress plugin that lets you create an online shop on a WordPress website. It’s one of the most popular…
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How to run a successful company blog
If you’re thinking about starting a company blog, or your current blog isn’t performing as well as you’d like, this post is…
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How to design a good logo
A logo is a unique and distinctive graphic form. Very often it’s a stylised wordmark or symbol. Every business owner knows that…
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What is storytelling and how to use it in business
Marketing offers many ways to succeed. Today, however, traditional advertising is becoming less and less effective, and constantly chasing novelties is exhausting.…
Quote
Got a project? Let’s talk.
Tell us what you need – we’ll reply with questions or a preliminary quote.



