Landing page design that converts: a guide for UK service businesses running Google Ads

Landing page design that converts is less about clever layouts than about four plain things: the headline repeats what the visitor just searched for, the page loads in a couple of seconds on a phone, there is one obvious next step, and there is enough proof that a stranger feels safe taking it. For a UK service business paying for Google Ads, in our experience getting those right usually does more for the cost of each enquiry than changes to bids or keywords. The page also has to collect its tracking data lawfully, which in the UK means consent before advertising cookies.

This guide is for businesses that sell a service and want a phone call, a form or a booking from each paid click: trades, clinics, professional firms, B2B suppliers. It covers how to structure the page, what to put on the form, how to handle consent, and how to test honestly when you do not have much traffic.

What a landing page is for

A landing page is a page built to receive visitors from one source with one intention, and to get one action from them. That makes it different from the homepage, which has to serve everyone, and from an ordinary service page, which is written to rank in search and can afford to be longer and more exploratory.

The commonest waste of advertising money we see is ads pointing at the homepage. Someone searches “emergency electrician Leeds”, clicks an ad that promises exactly that, and arrives at a slider that says “Welcome to Smith Electrical” with nine menu options. They have to do the work of finding the right page. Many will not.

Here is why it matters in money. Suppose you spend £1,500 a month at an average of £2.50 a click, which buys 600 visits. These figures are for illustration only.

Nothing about the advertising changed between those rows. We are not going to tell you what a “good” conversion rate is, because published benchmarks vary enormously by sector and by how they count. The useful comparison is your own page against itself over time.

The structure of a landing page design that converts

Most service landing pages that work follow roughly the same order, because it follows the order of a visitor’s questions: am I in the right place, can I trust you, what happens if I get in touch, what will it cost.

One page, one job

Give each service you advertise its own page. If you run one ad group for boiler repairs and one for new boiler installations, they need different pages, because the visitor’s urgency, budget and questions are different.

We usually remove the main menu from pages used only for ads, and keep the logo, the phone number and the footer links. The aim is to stop people wandering off, not to trap them. Do keep the footer: UK limited companies have to show their registered name, company number, place of registration (for example England and Wales) and registered office address on their website, and Google’s advertising policies expect the business behind an ad to be identifiable.

One technical point. If a landing page is a near-copy of a service page you also want to rank, add a noindex tag or a canonical link so the two do not compete in organic search. Our guide to service pages that rank covers the search version of the page.

Message match: the headline should finish the visitor’s sentence

Message match means the words on the page echo the words in the search and the ad. It reassures the visitor in the first second, and it is also one of the things Google assesses. Quality Score in Google Ads has three components: expected click-through rate, ad relevance and landing page experience. The score itself is a diagnostic and is not used in the auction, but Google says higher-quality ads can lead to lower prices and better ad positions, and landing page experience is part of that quality.

Three rules keep this honest:

• If the ad mentions a price, an offer or a response time, the page must repeat it, and it must be true.
• Use the customer’s word for the thing. If they search “boiler repair”, do not headline the page “heating system remediation”.
• Location-specific ads should land on a page that mentions that location in the headline, but only build separate town pages when there is something different to say on each.

Speed, especially on mobile data

A paid click is charged when the ad is clicked, not when the page finishes loading. Every visitor who gives up during a slow load has already cost you money. Check the device split in your Google Ads account. If most of your clicks come from phones, as is common for local services, many of those visitors will be on mobile data.

Our working targets for a landing page:

• Largest Contentful Paint under 2.5 seconds on a mid-range phone, which is Google’s threshold for “good”;
• no layout jumping as images, fonts or cookie banners load;
• a total page weight around one megabyte or less;
• a Lighthouse performance score of 100, which is what we aim for on every template.

What usually breaks those targets is not the page itself. It is a hero image exported at four times the size needed, a video set to autoplay, and a stack of third-party scripts: chat widget, heatmap, two advertising pixels, a review carousel. Each seems harmless alone. Together they can add seconds. Our plain-English guide to Core Web Vitals explains the measurements, and the WordPress speed fixes article shows how we get the numbers down.

Forms and phone calls

How many fields?

Every field you add tends to cost some completions and buys some information. For most service enquiries we start with four: name, phone or email, postcode, and a box for what they need. Then we adjust for the business. A firm drowning in poor-quality enquiries can add a budget or timing question to filter them. A firm with spare capacity should ask for less and qualify on the phone.

Details that make a form easier

• Put labels above the fields. Placeholder text that vanishes when you start typing fails people with memory or sight difficulties and causes mistakes.
• Use the right input types and autocomplete attributes, so a phone shows the number pad for the phone field and offers to fill in the name and email.
• Make buttons and fields big enough for a thumb. WCAG 2.2 sets a minimum target size of 24 by 24 CSS pixels, and we go larger.
• Say what the button does: “Request a callback” or “Get my quote”. Not “Submit”.
• Say what happens next, next to the button, and only promise what you do: “We reply within one working day”.
• Show errors beside the field in words, not just a red outline.
• Send people to a separate thank-you page. It confirms the enquiry arrived and gives your tracking a clean event to count.
• Start spam protection with a hidden honeypot field and a timing check. Reach for a visible challenge only if those fail.

Accessibility is not an extra here. A form that cannot be completed by keyboard or screen reader loses customers, and may fall short of the Equality Act duty to make reasonable adjustments. Our article on website accessibility and UK law sets out what is expected.

The phone number

For urgent services, expect many people to ring before they will fill in a form. Put a tap-to-call number at the top, state the hours it is answered, and then answer it. Test this yourself. Ring your own advert at 5.15pm on a Friday and see what a customer gets.

Trust: what to show, and what UK rules say about it

A visitor from an ad has never heard of you. Give them reasons to believe you that they can check.

• Reviews. Show your real Google or Trustpilot rating with a link to the source. Quote reviews word for word, with a first name and town if the customer agrees. Fake reviews, and incentivised reviews where the incentive is hidden, have been banned practices under the Digital Markets, Competition and Consumers Act 2024 since April 2025.
• Accreditations you hold and that can be looked up: Gas Safe, NICEIC, ICAEW, the SRA, the FCA register.
• Real photographs of your people, vehicles and work.
• A physical address and a landline or local number.
• Price guidance. A “from” price, a typical range or a worked example. It filters out people who cannot afford you and reassures those who can.
• Guarantees written precisely. “12-month workmanship guarantee” means something. “100 % satisfaction” does not.

Leave out invented urgency. Countdown timers that reset and “only two slots left this week” messages that are not true are the kind of pressure selling the Competition and Markets Authority has taken action against, and in our experience customers distrust them anyway.

Consent and tracking under UK rules

You need to know which clicks became enquiries, and the tools that tell you rely on cookies or similar storage. Under PECR, anything stored on a visitor’s device for advertising purposes needs their consent first. That includes the Google Ads conversion tag, remarketing tags and the Meta Pixel. The Data (Use and Access) Act 2025 introduced exemptions for some low-risk purposes such as basic statistics on your own site, but advertising and cross-site tracking are not among them. Our article on cookie banners and UK law goes through the detail.

In practice, a landing page running Google Ads needs:

• a consent banner with “Accept all” and “Reject all” given equal prominence, and nothing non-essential loading before a choice is made;
• Google Consent Mode connected to that banner, so Google’s tags respect the choice. Google has required consent signals for UK and European visitors since March 2024 if you want to keep using conversion measurement and remarketing audiences;
• a banner that does not shove the page down or cover the form on a phone;
• a link to the privacy notice next to the form;
• if you want to send marketing emails afterwards, a separate, unticked box is the safe route. An enquiry is not consent to a newsletter. The only alternative is the “soft opt-in”, which has strict conditions of its own, including a clear chance to opt out on the form.

Two consequences follow. First, Google Ads and GA4 will report fewer conversions than you really received, because some visitors decline. Consent Mode lets Google model part of the gap, but only for accounts above its click threshold (700 ad clicks over seven days per country and domain when we checked), which many small advertisers never reach. Count the enquiries in your inbox or CRM as the source of truth. Second, features that send customer details to Google, such as enhanced conversions, pass on hashed email addresses or phone numbers, so they should be covered by your consent wording and privacy notice. Ask whoever sets it up to show you where. Our GA4 setup guide explains how to record form submissions and phone taps as conversions properly.

Also collect only what you need. Under UK GDPR’s data minimisation principle, asking for a date of birth on a form for gutter cleaning is hard to justify, and it lowers completions as well.

How to test a landing page

Measure the right thing

Count enquiries, then count good enquiries. A page that doubles form fills by attracting people outside your area has not improved. Tag each lead with its source and note, a week later, whether it became a quote and a job. Cost per job won is the number that matters. Cost per enquiry is only a step on the way to it.

Be honest about sample size

Proper A/B testing needs volume most small advertisers do not have. Take the 600 visits a month from earlier, split evenly between two versions. At around 3 % each version gets about nine enquiries a month. If one gets nine and the other twelve, that difference is well within what chance alone produces, and you would need many months to be confident. Small tweaks such as button colour cannot be measured at this scale, whatever a tool’s dashboard says.

So with modest traffic:

• test big differences: a different offer, a short form against a long one, price shown against price hidden;
• change one substantial thing at a time and run it for at least four full weeks, so each version sees every day of the week more than once;
• avoid comparing across seasons. A heating engineer’s October is not their July;
• use Google Ads experiments to split traffic between two page addresses. Google Optimize, the free testing tool many guides still mention, was shut down in 2023.

Cheap tests that need no traffic

• The five-second test. Show the page to someone outside the business for five seconds, hide it, and ask what the company does and what they were meant to do next.
• Your own phone on mobile data. Not the office wifi. Load the page from the ad, fill in the form with one thumb.
• Read the search terms report in Google Ads, and check the page’s headline answers the searches you are really paying for.
• Session recordings show where people hesitate. Recording tools set cookies, so they belong behind consent as well.
• Ask the people who answer the phone what callers say they could not find.

Landing page checklist

• Headline repeats the search and the ad
• One primary action, visible without scrolling on a phone
• Tap-to-call number with answering hours
• Real reviews with a link to the source
• Accreditations you can evidence
• Price guidance of some kind
• Form with four or five labelled fields and a specific button
• Separate thank-you page
• Largest Contentful Paint under 2.5 seconds on mobile
• Consent banner with equal accept and reject, tags held until consent
• Privacy notice linked beside the form
• Company name, number, place of registration and registered address in the footer
• Noindex or canonical if it duplicates a service page
• Conversion tracking tested with a real submission

What it costs, and how we can help

A landing page template added to an existing WordPress site usually takes us 10 to 20 hours across design and development, including the form, the thank-you page and conversion tracking behind consent. At our WordPress Development rate of £50 an hour, 10 hours is £500 less 5 %, so £475, plus £95 VAT: £570. Twenty hours is £1,000 less 15 %, so £850, plus £170 VAT: £1,020. Once the template exists, further pages for other services take an hour or two each. Hours are booked through hourly hire and never expire.

Our past work includes campaign landing pages for ActionAid, and the design side of this sits within our UX design service. We are based in London and work with advertisers across the UK. Send us the page your ads currently point at and we will tell you the three things we would change first.

Photo: Amsterdam City Archives via Unsplash