Microsoft 365 · Migration
Google to Microsoft 365 migration in Richmond Hill.
We move your whole team from Google Workspace to Microsoft 365 — email, files, contacts and calendars — without losing data or stopping your business for a day.
A Google Workspace to Microsoft 365 migration moves your email, Google Drive files, contacts and calendars into Exchange Online, OneDrive and SharePoint. MainIT runs it in parallel so mail keeps flowing, and a typical 25-user migration takes about 10–12 business days.
Last updated June 2026
What we migrate
Everything your team relies on day to day moves across, mapped cleanly to its Microsoft equivalent:
- Email — every Gmail mailbox to Exchange Online, with folders and labels preserved.
- Files — Google Drive and Shared Drives to OneDrive and SharePoint, keeping your folder structure.
- Contacts — personal and shared contacts into Outlook.
- Calendars — events, recurring meetings and shared calendars, with invites intact.
The zero-downtime promise
We copy your data in parallel while your Google environment stays fully live. Your team keeps sending and receiving email throughout. We only cut over on a scheduled date you approve — usually a quiet evening or weekend — so Monday morning everything just works.
The process
How a migration actually runs
Our typical timeline for a 25-person team. Smaller teams move faster.
Discovery & audit
We map your accounts, mailbox sizes, Drive data and licensing, and agree on a cutover date.
Days 1–2Tenant & domain setup
We build your Microsoft 365 tenant and configure your domain, MX, SPF, DKIM and DMARC.
Days 2–4Parallel data copy
Mail, files, contacts and calendars are copied across with nothing switched off.
Days 4–9Cutover & training
We flip mail delivery on the agreed date and train your team on Outlook, Teams and OneDrive.
Days 9–11Reconciliation & support
A final audit confirms nothing was missed, followed by 30 days of post-migration support.
Days 11–12
Packages
Migration packages by mailbox count
Fixed-price, quoted after your free consultation. No hourly surprises.
Up to 5 mailboxes
Solo & very small teams
- Tenant & domain setup
- Email, files, contacts, calendars
- DNS, SPF, DKIM & DMARC
- Team training session
- 30 days support
6–25 mailboxes
Growing small businesses
- Everything in the smaller tier
- SharePoint & Shared Drive mapping
- Security baseline & MFA setup
- Two training sessions
- 30 days priority support
26+ mailboxes
Larger teams & multi-domain
- Phased, department-by-department
- Multi-domain & complex sharing
- Governance & retention setup
- On-site cutover support
- Extended support window
Every migration is fixed-price, quoted after your free consultation.
Common questions
Frequently asked questions
How long does a Google to Microsoft 365 migration take?
For a typical 25-user organization, the full migration takes about 10–12 business days end-to-end — discovery, tenant setup, a parallel data copy, the scheduled cutover, and staff training. Smaller teams are faster.
Will we lose any email, files or calendar events?
No. We migrate in parallel so your Google data stays live while we copy everything into Microsoft 365, then run a reconciliation audit before decommissioning the old environment.
Will email stop working during the move?
No. Mail keeps flowing the entire time. We only switch mail delivery on a scheduled cutover date you approve, usually outside business hours.
What happens to our Google Drive files and Shared Drives?
Personal Drive files move to OneDrive and Shared Drives move to SharePoint, keeping your existing folder structure and sharing where possible.
How much does it cost?
Migration pricing is fixed and scales with the number of users and the complexity of your setup. You get a fixed-price quote after a free consultation.
Can you migrate over a weekend?
Yes. The data copy runs ahead of time in the background, so the actual cutover can happen on a quiet evening or weekend with no disruption to your work week.
Let's talk
Book a free consultation.
Tell us what's slowing your business down and we'll give you a straight answer on whether — and how — we can help. No cost, no pressure.