The Stakes Are Higher Than They Look
Getting a website built is not a small decision. Depending on scope, you are looking at spending anywhere from a few hundred to tens of thousands of pounds. You are trusting someone to represent your business online, often for years. And unlike a bad logo or a poorly written brochure, a bad website actively costs you money every single day it is live.
Despite that, most businesses put less thought into choosing a web design agency than they put into buying a new laptop.
This guide covers what to actually look for, what to ignore, and the specific questions to ask before you sign anything.
Start With the Portfolio, Not the Pitch
Every web design agency has a sales pitch. Most of them are nearly identical: professional, experienced, results-driven, passionate. The pitch tells you nothing.
The portfolio tells you everything.
Look at the actual websites they have built. Not screenshots on a Behance board, but live URLs you can visit in a browser. Load them on your phone. Click through the pages. Fill in a contact form. Check the load speed using Google PageSpeed Insights.
You are looking for:
- Consistency of quality across multiple projects, not just one standout site
- Range of work that shows they can handle different business types and briefs
- Technical performance, not just visual polish. A beautiful site that loads in five seconds is a liability.
- Results mentioned, not just designs shown. If an agency built a site that doubled a client's enquiries, they should be talking about that.
If the agency cannot show you live sites, or the live sites look significantly worse than the screenshots, keep looking.
Ask About the Tech Stack
Most business owners do not know or care what technology their website is built on. They should.
The technology determines:
- How fast the site loads (performance affects SEO and conversions directly)
- How easy it is to update content without calling a developer
- How much it costs to maintain or switch agencies later
- Whether the site will age well or become technically outdated in two years
WordPress powers a huge share of UK small business websites. It is flexible and familiar, but it accumulates plugins over time, slows down, and requires regular security updates. Many WordPress sites end up locked to the agency that built them because the setup is too complex for the client to manage independently.
Modern frameworks like Next.js produce faster, more secure sites that are cleaner to maintain and far more scalable. If performance and longevity matter to you, ask what framework the agency builds in and why.
Pricing: What to Expect, and What to Suspect
Web design pricing in the UK ranges enormously. A freelancer on Fiverr might charge a few hundred pounds. A London agency might quote £30,000 for a rebrand and new site. Neither figure is automatically wrong. It depends entirely on what is included.
What you are actually paying for:
- Strategy and discovery. Understanding your business, your customers, and your goals before a single design is produced.
- Custom design. Layouts and visual language created for your business, not a theme with your logo dropped in.
- Development and build. Turning designs into a functional, fast, tested website.
- Content and copywriting. If the agency includes this, it is worth paying for.
- Ongoing support and updates. What happens after launch?
Be suspicious of prices that are extremely low. A £400 website is almost certainly a template with minimal customisation and no real strategy behind it. That is fine for a placeholder, but not for a site you are relying on to generate business.
Also be suspicious of prices with no breakdown. If an agency gives you a £12,000 quote without explaining what is included, you have no way to evaluate whether it is good value.
Communication and Process Matter as Much as Design
The agency relationship spans several weeks or months. In that time, you need to be able to communicate clearly, give feedback, and trust that the project is on track.
Ask about process before you hire:
- How often will you receive progress updates?
- Who is your main point of contact: the designer, the account manager, or someone you have never spoken to?
- How do revisions and feedback work in practice?
- What happens if the project runs over budget or over deadline?
A good agency will have clear answers to all of these. A disorganised one will be vague, or will promise unlimited revisions without being able to explain how that works.
Red Flags to Watch For
A few things that should make you keep looking:
They do not ask about your business goals. A web design agency that only talks about design is missing the point. The first conversation should be about what you are trying to achieve, not how many pages the site will have.
They cannot show live sites. Screenshots in a PDF are not the same as a live site you can test yourself.
They charge for revisions in a way that limits your feedback. One or two revision rounds with clear expectations is reasonable. A setup where every comment costs extra tends to produce sites that do not meet the brief.
They guarantee SEO results in a specific timeframe. No agency can promise first-page Google rankings. Organic search takes time and depends on factors outside anyone's direct control. Anyone who promises otherwise is not being straight with you.
There is no post-launch support plan. A website is not a finished product at launch. It needs ongoing maintenance, updates, and optimisation. If the agency has no plan for this, you will either pay constantly for small fixes or be left managing it yourself without support.
What to Ask When You Get in Touch
Before you commit to any agency, ask these questions directly:
- Can you send me three live websites you have built in the last 12 months?
- What framework do you build on, and why?
- What does your process look like from the first call to launch?
- What is included in the price, and what costs extra?
- Who do I contact if something needs changing after launch?
The answers will tell you more than any case study or testimonial. Good agencies answer these questions clearly and confidently. Agencies that hedge, deflect, or get vague are showing you how they will communicate throughout the project.
How TsvWeb Approaches This
We build on Next.js for businesses that need results, not just a good-looking site. Our process starts with your goals and works backwards: who are you trying to convert, what do they need to see, and how do we remove every obstacle between them and getting in touch.
We are transparent about pricing, we build with your input throughout, and we do not disappear after launch.
If you want to see what we have built and whether it is the right fit, browse our portfolio and then book a free call.
Choosing Well Saves You From Choosing Twice
The businesses that end up rebuilding their websites 18 months after launch are usually the ones who chose on price or speed rather than process and fit. A good agency costs more than a fast one. But a rebuild costs more than both.
Ask hard questions. Look at live sites. Understand what is included in the price. Choose an agency that talks about results before they talk about aesthetics.
If you would like to find out whether TsvWeb is the right fit for your project, start the conversation here.