GA4 Implementation Services Built on a Real Tracking Plan

Our GA4 implementation services take you from a messy or missing setup to GA4 and Google Tag Manager that track the events your business runs on.

Book a free tracking reviewSee case studies
Avoya Travel: more bookings
73%more bookingsAvoya Travel
Carrum Health: data accuracy
95%data accuracyCarrum Health
Carrum Health: less manual reporting
60%less manual reportingCarrum Health
  • Avoya Travel
  • Carrum Health
  • LR&C
  • Cloudstaff
  • Corpay One

Signs your GA4 implementation needs rebuilding

Most GA4 properties were set up quickly during the Universal Analytics shutdown and never revisited. If any of these sound familiar, the setup is costing you decisions:

  • GA4 conversions don't match Google Ads, Meta or your CRM, and nobody can explain the gap.
  • Your key events are page views of a thank-you page, not the actions that make you money.
  • There's no data layer, so every new tag means another developer ticket.
  • Reports are full of "(not set)", unassigned traffic or self-referrals from your own payment provider.
  • Each team has its own GTM container, or its own idea of what counts as a lead.
  • You built a Looker Studio dashboard, but nobody trusts the numbers in it.

What's included in a GA4 and GTM implementation

Measurement plan

We map your business goals to events, parameters and key events in one written plan. It names every event, what triggers it and who uses it, so marketing, product and engineering track the same things.

Data layer specification

Your developers get a data layer spec with exact variable names and example payloads. Tags then read from structured data instead of scraping the page, so they don't break on the next redesign.

GA4 property configuration

We set up data streams, cross-domain tracking, internal traffic filters, referral exclusions, data retention, custom dimensions and Google Signals, and connect Google Ads, Search Console and BigQuery where they're needed.

Google Tag Manager build

One organized container with naming conventions, folders and reusable variables. Every GA4 event, ad platform tag and consent rule lives in GTM with a version history, so you can see who changed what and when.

Key events and ad platform conversions

We define the key events that matter, such as leads, signups, bookings or purchases, and send the same events to Google Ads, Meta and LinkedIn so every platform optimizes on the same outcomes.

Consent Mode v2

GA4 and ad tags respect your cookie banner through Google Consent Mode v2, so you stay compliant without losing all modeled conversion data from visitors who decline cookies.

QA and documentation

Every event is tested in GTM preview, GA4 DebugView and the ad platform debuggers before launch. You get a QA log and a handover document your team can maintain without us.

How GA4 implementation works

  1. 1

    Week 1

    Discovery and audit

    We review your current GA4 and GTM, interview the teams who use the data and list what's broken or missing.

  2. 2

    Week 1–2

    Measurement plan sign-off

    You approve the event list, key events and data layer spec before anything is built.

  3. 3

    Week 2–4

    Build

    We configure GA4, build the GTM container and work with your developers on the data layer.

  4. 4

    Week 4–5

    QA and launch

    Every event is tested end to end, then published with a rollback plan.

  5. 5

    Week 5–6

    Handover and dashboards

    We hand over documentation, train your team and build the first reporting dashboard.

Client results

Avoya Travel

Avoya Travel

Travel · United States

Challenge
Avoya couldn't tell high-intent travelers from casual browsers, and GA4 numbers never matched what the ad platforms reported.
What we did
We restructured GA4, built custom session tracking that flags visitors who stay longer than 160 seconds, and set up automated dashboards that line GA4 up against ad platform data.
Result
73% more bookings and 48% less time spent on reporting.
Read the full Avoya Travel case study →
Carrum Health

Carrum Health

Healthcare · United States

Challenge
Tracking was split across teams and subdomains, with no single view of B2B and B2C user journeys.
What we did
We rebuilt GA4 with custom data streams for each audience, aligned marketing, analytics and acquisition teams on one tracking plan, and replaced manual reports with live dashboards.
Result
95% data accuracy and 60% less manual reporting.
Read the full Carrum Health case study →

Tools and platforms we implement

We work inside your existing stack and leave you with accounts you own.

  • Google Analytics 4
  • Google Tag Manager
  • Server-side GTM
  • BigQuery
  • Looker Studio
  • Google Ads
  • Meta Ads
  • LinkedIn Ads
  • HubSpot
  • Salesforce
  • Shopify
  • WordPress

Who our GA4 implementation is for

  • SaaS and B2B growth teams who need signups, demos and pipeline stages tracked the same way in GA4, the CRM and the ad platforms.
  • DTC and ecommerce brands that want product, cart and purchase events they can use for ROAS and merchandising decisions.
  • Lead-gen businesses in healthcare, travel, finance and services, where every form fill and call has a dollar value.
  • Agencies that need a white-label GA4 partner to set up clean tracking before their media work starts.

Engagement and pricing

All prices are in USD and fixed before work starts. You get a written scope after the free tracking review.

One-off implementation

4–6 weeks

Measurement plan, GA4 and GTM build, ad platform conversions, QA and handover.

Implementation plus monthly support

Monthly, cancel anytime

The full build, then ongoing monitoring, new tags and fixes when your site or campaigns change.

Frequently asked questions

How long does a GA4 implementation take?

Most GA4 implementations take four to six weeks. A small marketing site with a few lead forms can be done in two to three weeks. Larger sites with several domains, a custom checkout or app tracking take longer, mostly because of developer time for the data layer. You get a dated plan after the first week.

Can you migrate our historical Universal Analytics data into GA4?

No. Google doesn't import Universal Analytics history into GA4, and UA data is no longer accessible in the interface. If you exported it to BigQuery or spreadsheets, we can load it next to GA4 data in Looker Studio so your team can compare years, but the two data models will never match exactly.

Do we need a developer for GA4 implementation?

Usually, but only for a few hours. Most of the work happens in GA4 and Google Tag Manager, which we handle. Your developer adds the data layer pushes from our spec, which is often a day or two of work. On Shopify, WordPress and HubSpot sites we can often do it without your developer.

What's the difference between GA4 and Google Tag Manager?

GA4 is the analytics tool that stores and reports your data. Google Tag Manager is the tool that decides what data to collect and sends it to GA4 and your ad platforms. A good implementation uses both: GTM collects events from a data layer, and GA4 turns them into reports and audiences.

Will GA4 numbers match Google Ads and our CRM after implementation?

They'll be close and explainable, but never identical. GA4, Google Ads and CRMs use different attribution models, time zones and conversion windows. We line up the definitions, fix duplicate and missing conversions, and document the expected gap, so a difference of a few percent no longer starts a meeting.

Do you work with GA4 360 and BigQuery?

Yes. We set up the BigQuery export for both standard GA4 and GA4 360, and build the tables and Looker Studio dashboards on top. BigQuery is the right home for raw event data, longer history and joins with CRM or revenue data that the GA4 interface can't do.

Related services

Not sure where your tracking stands?

In a free 30-minute review we look at your ga4 & gtm implementation setup and tell you what to fix first.

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