GA4, Tag Manager and conversion tracking

Web Analytics and Conversion Tracking Agency in the UKWeb Analytics Agency UK

A web analytics agency for UK businesses that run Google or Meta Ads and need to trust their numbers. We set up GA4, Google Tag Manager, call tracking and server-side conversions, sync qualified leads from your CRM back to the ad platforms, and build a Looker Studio dashboard that shows the result. A standard setup is live in 48 to 72 hours.

Free. No obligation. Findings within 48 hours.
  • Google Premier Partner
  • No lock-in contracts
Campaign performance
Real accounts
Google Ads dashboard: 674 conversions, 260 lead forms and 406 phone callsGoogle Ads dashboard for a client account, 1 to 31 MarchGoogle Ads dashboard for a client account, 15 March to 13 AprilGoogle Ads campaign view for a client account, 15 March to 13 April
Screenshots from AdsFlair-managed Google Ads accounts.

Why Businesses Pay for Ads They Cannot Measure

What's happening

Most tracking setups were added piece by piece: a GA4 tag here, a Meta pixel there, a call tracking number nobody connected.

The result is duplicate conversions, calls that never show up and leads labelled Direct. Every bidding decision is then made on bad data.

What it costs you

  • Cost per acquisition keeps climbing. Each new customer costs more than the last.
  • Calls go uncounted. The highest-intent action never reaches Google or Meta.
  • Bidding learns the wrong lesson. Smart bidding chases whatever is counted, even when it is not a lead.

Here is what changes with AdsFlair

You own the accounts. Your Google and Meta ad accounts stay in your name, with full admin access.
You see the bidding. Every strategy, budget change and test is logged and explained.
We audit every tag. Duplicate, broken and missing tags are found and fixed before anything new is added.

How We Set Up and Maintain Your Tracking

Three layers, built in this order.

Clean GA4 and Tag Manager

One GA4 property and one Tag Manager container, with every form, call click and purchase set up as a named event.

  • Forms, calls and WhatsApp clicks tracked
  • Internal and spam traffic filtered out
  • Duplicate tags removed

Server-Side and Offline Conversions

Conversions API and Enhanced Conversions run alongside browser tags, and qualified leads from your CRM are sent back to Google Ads and Meta.

  • Meta Conversions API and Google Enhanced Conversions
  • CRM leads imported as offline conversions
  • Call tracking with dynamic numbers

Reporting You Can Read

A Looker Studio dashboard shows leads and cost per lead by channel, with a plain-English summary you can act on.

  • One dashboard for GA4, Google Ads and Meta
  • Regular checks that conversions are still firing
  • Results shared in plain English, including the tests that lost

Proof From Real Accounts

50+
UK clients managed
6+ years
running UK paid media accounts
Premier
Google Premier Partner certified
£2M+
in managed ad spend

Client success story

How AdsFlair Scaled Miella Plumbing & Construction Ltd Into a Booked-Out Local Brand

The challenge

When Miella Plumbing & Construction Ltd first approached AdsFlair, they were a skilled team relying almost entirely on word-of-mouth and unpredictable referrals. Their phone rang some weeks and stayed silent others, and previous generalist agencies had only ever delivered impressions and clicks, never tracked, booked jobs.

What we did

As their dedicated Google Ads marketing agency, we rebuilt their acquisition engine from the ground up: hyper-local Google Search campaigns around their real service radius, strict negative keyword lists to filter out DIY and price-shopper traffic, and conversion tracking that mapped every phone call and quote request back to the exact keyword that drove it.

The result

Within 90 days, Miella went from chasing work to choosing it, filling their diary with high-margin installation and construction projects and finally seeing exactly which campaigns produced revenue.

Trusted by Businesses Across the UK & Beyond

What Our Clients Say

Owners of trade and local service businesses on working with AdsFlair.

“AdsFlair delivers qualified, high-ticket extension and renovation inquiries consistently. Truly in a league of their own for construction marketing.”
PRPaul ReynoldsReynolds Builders
“Transparent reporting and genuine commercial understanding. The call tracking and lead qualification setup changed how we run our sales pipeline.”
MTMark ThompsonThompson Gas & Plumbing
“Within six weeks of AdsFlair taking over our Google Ads, our monthly booked boiler installations doubled while our cost per lead dropped by 34%.”
DHDave HarrisonHarrison Plumbing
“The landing page and tracking work alone paid for itself in the first month. We can finally see which campaigns bring in commercial contracts versus one-off jobs.”
CBCallum BryantFounder, Bryant Pest & Property Services
“Every previous agency treated us like a generic client. AdsFlair actually understands HVAC seasonality and built campaigns around it. Our winter pipeline has never looked this healthy.”
ACAmy ChenDirector, Chen HVAC Solutions
“AdsFlair rebuilt our Google Ads from scratch and finally put proper call tracking in place. We went from guessing which ads worked to knowing exactly which keyword booked which job.”
RFRyan FletcherOwner, Fletcher Gas & Plumbing

From Tracking Audit to Live Setup in Four Steps

Four steps. You approve each one before we move to the next.

  1. 01

    Deep-Dive Audit

    We go through your account history to find where budget is leaking and what can be fixed this week.

    48 hours
  2. 02

    Tracking Plan

    A list of every event, tag and conversion we will set up, signed off by you before we touch the site.

    Week 1
  3. 03

    Build and Test

    Tags, conversions and call tracking go live and are tested against real form fills and calls.

    48 to 72 hours for a standard setup
  4. 04

    Monitor and Report

    Checks that conversions keep firing, plus a dashboard and report that show leads, not vanity metrics.

    Every week
Get a Free Analytics AuditStep 01 costs nothing and commits you to nothing.

Web Analytics Services We Deliver

From GA4 and Tag Manager setup to server-side conversions and reporting dashboards.

GA4 & Google Tag Manager Setup

Full GA4 property configuration and a clean GTM container architecture covering every event, page view, form fill, call click, and purchase, deployed without touching your site code.

Offline Conversion & CRM Sync

Zapier and webhook pipelines that push verified, sales-qualified leads from your CRM or spreadsheet straight back into Google Ads and Meta's Conversions API.

Meta & Google Enhanced Conversions

Server-side Conversions API and Enhanced Conversions implementation, so your ad platforms keep matching real users and optimising correctly, even under strict privacy settings.

Looker Studio Dashboards & Reporting

Custom dashboards connecting GA4, Google Ads, and Meta into one clear view, leads, cost per lead, and ROAS at a glance, with plain-English monthly reporting.

Why UK Businesses Choose AdsFlair as Their Web Analytics Agency

Ad campaigns can only optimise as well as the data behind them, and tracking that survives ad blockers and privacy settings takes careful setup.

Unified Tag Manager Architecture

One clean Google Tag Manager container per client, GA4, Google Ads and Meta Pixel tags unified and audited, eliminating the duplicate and missing tags that plague self-managed setups.

Dynamic Call & Offline Conversion Tracking

CallRail dynamic number insertion and CRM-to-ads sync via Zapier, so every phone call and sales-qualified lead is attributed back to the exact keyword that drove it.

Server-Side Conversions API

Meta CAPI and Google Enhanced Conversions running alongside browser tracking on every account, protecting your data from ad blockers and iOS privacy restrictions.

What to Expect From a Web Analytics Agency in the UK

A web analytics agency should leave you able to answer one question: which marketing brings enquiries, and which does not. For a UK service business that usually means three things.

  • Clean GA4 setup: one property, the right events, and internal and spam traffic filtered out.
  • Enquiries tracked as conversions: phone calls, form submissions and WhatsApp clicks, each tied to the channel that produced them.
  • Reports you can read: leads and cost per lead by channel, without a dashboard you need training to use.

Frequently Asked Questions

What is GA4 and why do I need it set up properly?

Google Analytics 4 is Google's current analytics platform, tracking website and app behaviour on an event-based model that integrates tightly with Google Ads. If it's misconfigured, your conversion data will be incomplete, which directly hurts campaign optimisation.

Do I need Google Tag Manager for conversion tracking?

GTM isn't strictly required, but it's strongly recommended. It lets us deploy and update GA4, Google Ads, and Meta Pixel tags in one unified container without developer changes to your site, avoiding the duplicate and missing tags that cause bad data.

What is the Meta Conversions API and why does it matter?

The Conversions API (CAPI) sends purchase and lead events to Meta server-to-server, alongside your browser Pixel. This keeps event match quality high even when browser tracking is blocked by ad blockers or iOS privacy settings, directly improving ad performance.

Can you sync CRM leads back into Google Ads and Meta as offline conversions?

Yes. We build automated pipelines, typically via Zapier and webhooks, that push verified, sales-qualified leads from your CRM or spreadsheet straight back into Google Ads' offline conversion import and Meta's Conversions API.

How long does a full web analytics and tracking setup take?

Basic GA4, GTM and conversion tracking is typically complete within 48 to 72 hours. Full tracking rebuilds with Enhanced Conversions, offline conversion sync, and custom dashboards usually take 7 to 10 business days depending on complexity.

What does a Looker Studio dashboard include?

Your custom dashboard connects GA4, Google Ads, and Meta data into one live view: sessions, leads, cost per lead, ROAS, and conversion trends, fully customised to the KPIs that matter for your business.

Still have a question? Call +44 7846 860357

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