UK web agencies quote in round numbers. £4,000. £8,500. £12,500. The proposal calls it "fixed-fee", which is true, but it doesn't tell you what's actually inside the number. This post takes a typical UK web agency quote apart and shows where each pound goes, what's reasonable, and what to push back on.
TL;DR
A typical mid-range UK web agency quote (£8,000 for a custom 5- to 10-page website) breaks down roughly as:
- 35 to 40% of the quote is real design and development work
- 20 to 25% is project and account management overhead
- 15 to 20% is agency margin and operating costs
- 10 to 15% is workshops, discovery, kickoff, and pre-build phases
- 5 to 10% is risk contingency
The work is roughly £3,000 of an £8,000 quote. The rest is the agency wrapper. For some projects the wrapper is worth it; for many UK SMBs it isn't.
The work itself, 35 to 40%
This is what you actually receive: design files, code, deployment, testing, SEO foundations, contact form wiring.
For a mid-range UK agency, expect:
- Design (15 to 20%): senior designer time at £500 to £700 per day. A 5- to 10-page brochure site takes 4 to 7 days. £2,000 to £4,900 of design.
- Development (20 to 25%): developer time at £450 to £600 per day. Build, deployment, testing, accessibility, performance tuning, content management setup. 5 to 10 days. £2,250 to £6,000 of dev.
This is the part you absolutely want in the quote. Push back if it's missing or vague. Be suspicious if it's substantially padded above market rate.
A signal you're being padded: the quote describes development in vague terms ("modern web technologies", "scalable architecture") rather than specifics ("Next.js", "headless Sanity CMS", "Vercel deployment with CDN"). Vague descriptions usually mean the agency doesn't know what they'll build until they start, which is how scope creep happens.
Project management, 20 to 25%
This is where agency quotes start to diverge from solo-developer quotes.
What a project manager does on a website build:
- Maintains the project plan and tracks deliverables against scope
- Runs weekly status calls or sends written updates
- Coordinates between designer, developer, and client
- Manages change requests and quotes them when scope shifts
- Handles client communication so the designer and developer can keep building
Cost: roughly £1,200 to £2,000 on an £8,000 quote, depending on how senior the PM is.
When this earns its keep: the project has multiple stakeholders on the client side (marketing, sales, leadership, finance), the timeline is tight, there are dependencies on other work (brand refresh, photography, content development), or the agency has multiple parallel projects and needs internal coordination.
When it's overhead: you're the single decision-maker, the brief is clear, the timeline is flexible, and you'd prefer to talk to the designer and developer directly.
The push-back move: ask if the project can run without a dedicated PM, with direct contact between you and the design/dev team. Some agencies will say yes (and reduce the quote accordingly); some will say no (because that's how the agency is structured). The answer tells you about the agency's culture and whether it fits your way of working.
Account management, 5 to 10%
Different role from project management. The account manager owns the commercial relationship: ensures you're happy, manages the contract, handles renewals, upsells, and any escalations.
On a one-off website project, account management is usually wrapped into project management or absorbed into agency margin. On a retainer relationship, it's a separate line item.
Cost on a one-off website: usually £200 to £600 absorbed into the PM or margin line. Worth checking the quote to make sure you're not being charged twice for the same person.
Discovery, kickoff, workshops, 10 to 15%
The pre-build phase. Kickoff workshops, brand discovery, audience personas, user research, competitor analysis, content strategy session.
Cost: roughly £800 to £1,200 on an £8,000 quote.
When it earns its keep: a complex brief with multiple stakeholders, a brand refresh as part of the website project, a target audience the client hasn't articulated clearly, or a competitor landscape that needs analysis.
When it's theatre: a 4-person UK business where the owner is also the marketing director, knows the audience by name, and can articulate the brief in a 30-minute call.
The push-back move: ask if the discovery phase can be a single 90-minute call rather than a multi-day workshop. Reputable agencies will say yes when the brief is genuinely simple. Less-reputable ones will say no because workshops are a profit centre.
Agency margin and operating costs, 15 to 20%
The agency is a business. It pays rent on an office, salaries to staff between projects, software subscriptions (Adobe, Figma, project management tools), accounting fees, insurance, and partner profit.
Cost: roughly £1,200 to £1,600 on an £8,000 quote.
This is non-negotiable in the same way you don't ask a restaurant to remove rent from your meal cost. You can negotiate the gross number; you can't itemise the margin out of it.
What to look for: a margin that's roughly 15 to 20% of the project. If it looks closer to 30%, the agency is either overcharging or has unusually high overhead (expensive office, large back-office team) that you're funding without benefit.
Risk contingency, 5 to 10%
Some agencies bake a contingency into the quote. The argument: web projects routinely run 10 to 20% over estimate, and a contingency means the agency doesn't have to renegotiate the scope every time something takes a bit longer.
Cost: roughly £400 to £800 on an £8,000 quote.
The honest version: a 10% contingency is reasonable. Anything over 15% is the agency hedging too much, and you'd be better off agreeing a tighter scope with no contingency and renegotiating explicitly if something material changes.
What to look for: a stated contingency percentage in the quote. If it's hidden, that's a flag. If it's over 15%, push back.
Hosting markup, sometimes hidden
Some agencies bundle hosting into the quote and bill it monthly thereafter. The standard markup is 30 to 100% above what the underlying hosting actually costs.
Example: agency charges £50 a month for hosting that costs them £15 a month from a UK reseller. £35 a month is pure markup.
Over 5 years on a typical SMB site, hosting markup is £1,000 to £2,000 of overpayment. It's quieter than the upfront quote but adds up.
The push-back move: ask if you can host the site on your own infrastructure (or with a cloud provider of your choice). Reputable agencies will say yes; less-reputable ones will say no because the hosting line is a profit centre. If you're locked in, you don't really own the site.
What you should actually negotiate
Three things worth pushing back on:
- The PM line if you're a solo decision-maker. Direct contact with designer and developer is cheaper and often better.
- The workshop phase if the brief is simple. A 90-minute call usually replaces a multi-day workshop without losing value.
- The hosting arrangement. Insist on a build that can run anywhere, not one tied to the agency's infrastructure.
Three things not to push back on:
- Designer and developer day rates. Market rates are market rates; trying to cut them produces worse work, not cheaper work.
- A reasonable margin. The agency is a business and needs to make money.
- Source code handover and ownership clauses. These are non-negotiable for you. If the agency resists, walk.
The alternative most quotes ignore
A solo operator can build the same shape of site for substantially less because there's no PM, no AM, no workshop phase, and no agency stack to fund. The trade-off is no internal coordination capacity, so it works best for small businesses with a single decision-maker.
A solo-operator custom build for a 5-page UK SMB site is typically £2,500 to £4,000 upfront, or £0 upfront on a pay-monthly plan. The work is similar quality (the designer and developer at a small agency are often the same level as a senior solo operator); the wrapper is gone.
So, is the agency quote fair?
If the line items add up roughly as above, the quote is fair for what it includes. Whether you should pay it depends on whether you need the wrapper. For complex multi-stakeholder projects, you do. For most UK SMB brochure sites, you don't.
The fair version of an £8,000 agency quote, if you cut the wrapper, is somewhere between £3,500 and £5,000. The conversation worth having with the agency is whether they can deliver the work without the overhead. Some will say yes; some won't.
If you've got an agency quote and want a second opinion on what's worth paying for and what isn't, bring it to the bureau's discovery call. Fifteen minutes, line-by-line honest steer. No pitch.