How do you pick a web design agency without getting burned?

The short answer

Ask three things: who owns the code and the domain, what performance targets you are committing to, and what happens after launch. Google’s Core Web Vitals thresholds are public, so a real agency will commit to LCP under 2.5 seconds in writing. Only 48% of sites pass on mobile.

What actually drives the number

Two proposals for “a new website” can differ by $40,000 and both be honest. The difference is scope, and these are the four items that move it.

• Tier. One Little Web’s 2026 cost study puts a five-to-ten page small business site at $500 to $8,000, ecommerce at $5,000 to $25,000 or more, and custom enterprise builds above $20,000, with annual upkeep of 15% to 30% of the build.
• Who builds it. The same study puts offshore developers at $40 to $80 an hour and US or UK specialists at $120 to $200.
• Performance engineering. Meeting Core Web Vitals targets, which Google defines as LCP under 2.5 seconds, INP under 200 milliseconds and CLS under 0.1 at the 75th percentile of real visits, is developer time, not designer time.
• Accessibility. WCAG 2.2 became a W3C Recommendation in December 2024 and added nine success criteria, including target size and focus visibility. The Department of Justice’s web accessibility rule sets WCAG 2.1 Level AA for state and local government entities, with deadlines of April 2027 and April 2028 by population size. Private businesses are not covered by that rule, but it establishes the standard courts and buyers now point to.

The questions to ask on the first call, and the bad answers

The redirect question is the one that separates web shops from marketing shops. A redesign that changes URLs without a redirect map can erase years of rankings in a week, and the agency will have been paid before you notice.

How to tell which applies to you

Use this rule: if the proposal counts pages but never mentions load time, redirects or conversion tracking, you are hiring a decorator, not a builder.

A site is a piece of infrastructure that has to be fast, findable, editable and measurable. Any of those missing from the scope document will be missing from the site. Ask for the scope in writing and read it for those four words before you read the price.

Second rule: match the shop to the job. If you need a five-page brochure site, an agency that quotes $45,000 is selling you a process you do not need. If the site takes orders, integrates with a CRM, or supports multiple locations, a solo freelancer at $3,000 will run out of depth around week five, and you will pay twice.

Third: ask to see a site they launched eighteen months ago and run it through a public speed test yourself. HTTP Archive found that as of July 2025 only 48% of sites achieved good Core Web Vitals on mobile and 56% on desktop, so a portfolio full of passing sites is a genuine signal.

What we’d do

TACK™ has been building since 2009 from Sherman Oaks, with studios in Northridge, across 300+ brands and 15+ industries. Engagements start at $5,000 a month. What we commit to before a design is drawn:

• Ownership in writing. Your domain, your hosting, your repository, your analytics. Credentials handed over at launch, not on request.
• Performance budgets in the brief. Mobile LCP target set at the start and tested on real devices before launch, not diagnosed afterward.
• A redirect map on every migration. URL parity, 301s, Search Console monitoring for thirty days after cutover, and a rollback plan.
• Structure that machines can read. Schema, entity markup and answer-first page structure so both Google and AI assistants can quote your pages. That is the same work behind getting found in search and AI answers.
• Conversion tracking live at launch, so the redesign can be judged on leads rather than on taste. See our capabilities and case studies.

Common mistakes

Letting the agency hold the keys. If they own the domain, the hosting and the code, changing agencies means rebuilding the site. That turns a $12,000 build into a $12,000 build every two years, plus whatever pressure they choose to apply during the handover conversation.

Approving a design without a content plan. Templates get designed for text nobody has written, then filled with copy that does not fit. The result is a beautiful home page and eleven thin pages that cannot rank. Write the page purposes before approving the layouts.

Skipping accessibility until a demand letter arrives. WCAG 2.2 Level AA is a design and build decision. Retrofitting contrast, focus states, target sizes and form labels across an already-built site costs multiples of doing it during the build, and overlay widgets do not make a non-conforming site conform.

The bottom line

The right web partner puts ownership, performance targets, redirects and tracking in the scope before you ask. The wrong one counts pages, keeps the keys, and calls speed a phase two item.

If you want an honest read on your current site and what a rebuild should actually cost, book twenty minutes: talk to an expert, or call 310-620-1141.

Sources

• web.dev: Core Web Vitals
• HTTP Archive Web Almanac 2025: Performance
• W3C: Web Content Accessibility Guidelines (WCAG) 2.2
• ADA.gov: Fact Sheet on the Web Accessibility Rule
• One Little Web: Website Design Cost Study 2026