Why Do Website Costs Vary So Much Between Web Design Agencies?

By Neil Kilgallon on Thursday, 24 September 2026

You can send the same website brief to several agencies and get quotes that differ by thousands of pounds. Some of that difference comes down to experience and the team involved, but it can also reflect different assumptions about what needs to be designed, built and delivered. One agency might include content planning and copywriting, for example, while another expects you to supply finished text. As a web design agency in London, we regularly help clients work through these decisions. In this article, we explain the main factors behind website costs and share examples from our work at ID Studio to help you understand what you’re paying for, compare proposals and decide where to focus your budget.

Agency Experience, Expertise & Team Structure

The experience of the people working on your website will affect the price. Senior designers and developers generally charge more for their time, although their experience can also help them spot problems early and avoid decisions that become expensive to change later. Ask who will actually work on your project and how involved they will be throughout.

Agency size can influence costs too, but it tells you relatively little about the experience you’ll receive. A small agency might have a highly experienced team, while a larger agency may assign much of the day-to-day work to junior staff. Ask about the proposed team’s relevant projects and who will review and approve their work.

It is also worth checking whether the agency will carry out the design and development itself or pass some of it to freelancers or another company. Outsourcing can help an agency offer a lower price, although it raises questions about who you’ll be working with and how the work will be managed. Ask whether the proposed team has experience in your industry, understands your target audience and will be available to discuss the project with you. Find out who checks their work and takes responsibility if something needs fixing.

At ID Studio, our creative director has more than 30 years of experience, and senior designers are involved from initial concepts through to final designs. Our in-house developers work alongside them, so they can address questions about functionality or how something will be built during design. You can find out more about our team and how we work.

That senior involvement is included in our pricing. It gives clients access to people who have worked through similar challenges before and can explain the options, including when a simpler approach would meet the brief and save unnecessary expense.

How Much Discovery, Brand Strategy & UX Is Included?

A website brief rarely answers every question that needs resolving before design begins. Different views within your organisation may exist about what the website should achieve, which audiences matter most, or what content needs to stay. Working through these questions takes time, and agencies will make different allowances for it in their proposals.

At ID Studio, we start with discovery sessions to understand your business and the problems the website needs to address. That helps us plan the structure and work out how visitors will find what they need. Wireframes then give everyone a chance to review the proposed layouts before we develop the visual design. For a website with several audiences or complicated booking and application processes, this can be a substantial part of the project.

The condition of your existing brand also affects the scope. If you have a clear identity and useful brand guidelines, we can design around them. If your positioning, messaging or visual identity needs attention, our brand strategy and identity work can form part of the project. We would agree on that requirement with you rather than assume a new website needs a complete rebrand. 

When comparing quotes, check what each agency expects to have resolved before design starts. A proposal that includes workshops and detailed UX planning covers more work than one that assumes your team will provide that direction.

Bespoke Website Design Versus Templates

Starting with a pre-designed theme can reduce the amount of design work an agency needs to do. The layouts and many visual decisions are already in place, leaving the team to adapt the colours, typography, images, and content. For a straightforward website with a limited budget, this can be a sensible option.

At ID Studio, our bespoke website design starts with your brand, content and the people who will use the site. We don’t begin with a theme. Our designers develop the page layouts and visual direction around the requirements agreed during planning, with time allocated for presentations, feedback and revisions. We also consider how the designs will work across different screen sizes.

That involves more design time, but it gives us control over details that can be difficult to accommodate within a template. You might need a particular way to present a large project portfolio, explain a complicated service or guide visitors through several product options. Those requirements can shape the design from the outset.

The CMS alone won’t tell you which approach an agency is proposing. A WordPress website, for example, can use a purchased theme or a completely bespoke design. The proposal should make that distinction clear. It is also worth checking how much customisation is included, as extensive theme changes can reduce the initial cost savings.

Development, CMS Choices & Custom Functionality

The number of pages on a website only tells you part of the story. A relatively small site might need to take payments, manage customer accounts or exchange information with another business system. These features can involve considerable development work, even if the finished website looks straightforward.

The content management system also needs attention. Some organisations only need to edit text and replace images. Others need different staff permissions, approval processes or tools for managing particular types of content. The time spent planning and building those editing features should be reflected in the proposal.

At ID Studio, our web development team recommends the CMS and technical approach around these requirements. We’re not tied to one platform. We look at how your team will use the website day-to-day and what it needs to connect with before deciding how to build it. When custom functionality is required, we define what it needs to do so we can price the work accurately.

For Rambert Grades, the project involved managing registrations, applications, examinations and payments. The organisation had used several separate subscription platforms, which became time-consuming to administer. Our work included developing a Laravel-based platform with management and reporting tools. That is a very different development requirement from a website that presents information and collects enquiries.

When reviewing proposals, look closely at descriptions such as ‘CRM integration’ or ‘booking functionality’. They should explain what information will move between systems, what users can do and which tasks will still need to be handled manually. Otherwise, agencies may price very different solutions under the same heading.

Content, SEO & Website Migration

Many website proposals assume the client will supply finished copy and suitable images. If you need help deciding what to say, writing the pages, or sourcing photography, include that work in the budget. Content population also takes time. Adding a few service pages is different from reviewing and transferring hundreds of articles, product listings, or resources.

An existing website brings further responsibilities. Pages may already attract search traffic or have links pointing to them from other websites. Changing their addresses or removing useful content without reviewing it can put that visibility at risk. The migration needs to account for where existing pages will go and which redirects are required.

Our work for Swim Generation, for example, included an SEO migration from its former domain alongside the rebrand and website redesign. Moving to a new name and website meant more than just the appearance of the new pages. The transition itself formed part of the project’s scope.

At ID Studio, we consider search visibility while planning the website’s structure and content. Our SEO and content services can also support clients who need help developing their copy or improving existing material. We agree on those responsibilities during scoping so it is clear what our team will deliver and what we need from yours.

It is worth checking what a proposal means by ‘SEO included’. Launch work such as metadata, redirects and indexing checks is separate from ongoing keyword research, content development and performance reviews. Both have a role, but the quote should clarify what's covered and whether any monthly costs will follow.

Security, Accessibility & Testing

The time allowed for testing can vary considerably between proposals. A website with customer accounts, bookings, or payments needs checks for what can go wrong during those processes. For example, an interrupted payment should leave the customer with clear information about whether their booking is complete.

Testing also involves checking how pages behave across browsers and screen sizes. Forms need testing, navigation needs reviewing, and layouts need checking with real content. Problems often become apparent when someone uses the website in a way the team hadn’t anticipated.

Accessibility should be considered during design and development, with checks covering areas such as keyboard navigation, colour contrast and form labels. Agree on any specific accessibility requirements during scoping, including the expected level of testing. An independent accessibility audit would need its own budget allowance.

At ID Studio, we consider security from the start, particularly where a website handles personal information or payments. We are Cyber Essentials certified, and our team includes cybersecurity expertise supported by CompTIA Security+ certification and a degree in cybersecurity. The checks required will depend on what the website does and the systems it connects to.

A proposal should explain what testing is included, who will carry it out and how issues will be resolved before launch. If specialist work such as penetration testing is needed, confirm whether it is included in the quoted cost or will be commissioned separately.

Project Management, Communication & Design Revisions

A website project needs someone to track decisions, organise reviews, and make sure everyone knows what is needed next. Agencies allow different amounts of time for this work. Some proposals include regular meetings and detailed design presentations; others assume most communication will happen by email, with fewer opportunities to discuss the work.

The number of people involved on the client side can also affect the time required. If several departments need to approve the website, their feedback must be consolidated before changes are made. Conflicting comments or a new decision-maker joining late can mean revisiting work that everyone thought was agreed.

At ID Studio, we agree on review and approval points during planning, including wireframes and design presentations. We ask clients to consolidate feedback so we can work through a clear set of comments. This also gives us a chance to explain our recommendations and discuss any concerns before moving into development.

The timing of revisions matters. Moving a section on a wireframe is usually straightforward. Making the same change once it has been designed, built and tested may involve several people repeating part of their work.

Your proposal should explain how feedback and revisions will be handled, including what happens if the brief changes. An allowance for design revisions is different from an agreement to add new pages or functionality, and that distinction should be clear before the project starts.

Support, Maintenance & Costs After Launch

It helps to know what support you’ll need once the website is live and how it will be charged. Your team may be comfortable updating content but need help with software updates, technical issues, or design changes. Hosting and software licences can also add recurring costs outside the initial build price.

Warranty cover should be explained separately. At ID Studio, we provide a six-month warranty covering faults caused by our design and development work. Adding a new feature or changing an agreed design is a different requirement, so it is important to distinguish between fixing an issue and commissioning further work.

Our ID Support service gives clients ongoing access to our team for maintenance, technical help and website improvements. The arrangement depends on how much support the client needs, with the scope and available time agreed in advance. Larger developments can be quoted separately.

Our work with Meta TTC Labs shows how that relationship can develop over several years. It has included new design work, front-end and back-end development, a CMS migration and ongoing maintenance. A team familiar with the website is useful when requirements change, and decisions need to account for work already in place.

When comparing proposals, look at the likely running costs alongside the build fee. Establish who will manage the hosting and licences, what access your organisation will have, and whether support is charged monthly or as needed. You should also know how additional work will be approved and priced.

How We Balance Cost & Quality at ID Studio

ID Studio isn’t positioned at the cheapest end of the market, and we don’t aim to charge the highest fees either. Our prices reflect the time needed to plan, design and build a bespoke website, with experienced people involved throughout the project.

Clients pay for senior creative direction and an in-house team that can handle both design and development. They are also paying for the planning, testing and project management described earlier in this article. We explain the work in our proposals so clients can see how the cost relates to what we will deliver.

You usually have choices to make within a budget. An existing brand identity may need very little adjustment. A suitable CMS may already provide functionality that would otherwise require custom development. Some features may be useful additions later, once the main website is live. We discuss these options during scoping and help clients decide what deserves attention first.

Our bespoke website projects typically range from £20,000 to £150,000+, depending on the requirements. That range is broad because a marketing website and a platform with complex integrations involve very different amounts of work. We usually provide a fixed project cost against agreed deliverables, with clear responsibilities for our team and yours.

We want clients to understand the proposal well enough to question it. If something appears unnecessary or the budget needs adjusting, that is a conversation to have before the work begins.

How to Compare Web Design Agency Quotes Fairly

Put the proposals side by side and check what each agency included. If something is missing or described vaguely, ask for clarification before deciding. A useful comparison should cover:

• Scope: Which pages, features and integrations are included, and what is excluded?
• People: Who will design and build the website? Will any work be passed to external suppliers?
• Design: Is the proposal for bespoke design or a customised theme? What planning and revision time is included?
• Functionality: Which features and integrations are included, and what will they actually do? Check the details of any booking systems, payments, user accounts or automated processes, including which tasks will still need manual input. 
• Content: Who will write the copy, supply images and add everything to the CMS?
• SEO and migration: What happens to existing content and URLs? Is ongoing SEO included or quoted separately?
• Testing and launch: What checks will be completed, who will carry them out and what warranty applies?
• Ownership and access: What will you own, which elements require licences and what access will your team receive?
• Ongoing costs: What will hosting, maintenance and further development cost after launch?

Where the proposals differ, discuss those differences with the agencies. You may discover that a lower quote leaves work with your team that another agency has included. Equally, a more expensive proposal may contain services you don’t need.

Our guide to choosing a web design agency covers other points to consider, including relevant experience, client references and how the agency works.

If you’re considering ID Studio for your website, send us your brief and an indication of your budget. We can talk through the requirements with you and explain the work we would recommend, what it would cost and where there may be scope to adjust.