It’s no wonder you’ve been putting off your CRM switch. Estate agents have spent years believing that migration is painful, disruptive or even risky. There are horror stories about data being lost, staff refusing to use the new system and agencies getting stuck running two CRMs at once for months.
To be fair, some migrations really do go wrong. But experienced estate agency CRM migration teams now run the process very differently.
Alto migration benchmark (based on 1,600+ migrations completed between 2019 and 2025):
| Metric | Result |
| Average migration time (start to go-live) | 16 days |
| Migrations completed without issues | Over 90% |
| Migrations requiring zero fixes during validation | More than 70% |
| Source systems supported | 50+, including Reapit, Street, Jupix and DezRez |
Alto’s average estate agency CRM migration takes 16 days from start to go-live, with over 90% completed without issues (Alto migration data, 2025).
With the right provider, switching can happen quickly, with minimal disruption to your team and no need to sacrifice the historical data your business has spent years building.
The real risk now isn’t actually moving. It’s staying on software you’ve outgrown while the data that could power your future growth goes untapped. This CRM migration checklist explains how modern CRM migration really works, how to avoid the mistakes that cause disruption and why your records matter more now than ever.
Before you switch CRM: don’t make the ‘start fresh’ mistake
Starting fresh during CRM migration is usually a mistake.
Agents are frequently told to archive old records, leave client history behind and only migrate active applicants and current clients.
It sounds sensible. It isn’t.
Your CRM contains years of conversations, valuations and notes. Some of it might be old, but none of it is worthless.
HM Land Registry recorded more than 1.13 million UK property sales in 2025–26. Every one of those sales creates records that agencies may still rely on years later. That applicant who registered five years ago might finally be ready to move. The landlord who sold up in 2021 could be looking to buy again.
This kind of data matters more than ever now AI is becoming part of everyday workflows. These systems work best when they can learn from years of history and behaviour. The more context they have, the better they get at recognising patterns and highlighting potential opportunities.
That’s why ‘starting fresh’ can do more damage than most agencies realise. Tidying your data is sensible. Removing duplicates and correcting obvious mistakes makes sense. But deleting years of history because it’s messy is a completely different decision.
As Colin Deer, Managing Director at Chase Buchanan, puts it: “We had huge volumes of historical data and understandably, that made people nervous. But Alto’s team handled the migration seamlessly. We didn’t lose anything, and we didn’t lose any time.”
8 questions to ask before switching estate agent CRM
The quality of a CRM migration usually comes down to the questions you ask before signing.
Most CRM demos focus heavily on features, but you also need to know what happens to your data, your workflows and your team during the switch.
Asking these 8 questions now will help you make the right decision and could save you months of disruption down the line.
1. How many successful migrations have you completed from our current CRM?
Why it matters: This tells you whether the provider already understands the quirks, gaps and export issues that come with your current system. The more familiar they are with it, the fewer surprises you’re likely to hit halfway through the migration.
Alto’s answer: Alto has completed more than 1,600 migrations since 2019 across 50+ source systems, including Reapit, Street, Jupix and DezRez.
2. What is the experience level of the people responsible for migrating our data?
Why it matters: A CRM migration isn’t something you want handled by a general support team learning as they go. If your agency has years of records and data, you need people who already know where problems usually appear and how to avoid them.
Alto’s answer: Alto has a dedicated migration team with more than 45 years of combined experience. They’ve managed everything from single-branch agencies to large multi-branch businesses with decades of historical records.
3. How long until we can see our data in the new system?
Why it matters: The longer you wait to review your migrated data, the harder it becomes to spot issues early. Seeing a test environment quickly gives your team reassurance that everything is moving in the right direction.
Alto’s answer: Alto delivers a full test version of your data within 48 hours of receiving your files, so your team can start checking records almost immediately.
4. What exact data will and won’t transfer from our current system?
Why it matters: Some providers only migrate active records or recent activity to simplify the process. That can leave agencies discovering too late that years of notes, archived properties or historical client records have been left behind.
Alto’s answer: With Alto, everything transfers — records, notes, fields, transaction history, archived data and custom information. No restrictions, no omissions.
5. What percentage of your migrations require fixes during the testing period?
Why it matters: Every provider will tell you migration issues can happen. What matters is how often they happen in practice. This question gives you a much clearer picture of how reliable the process actually is.
Alto’s answer: More than 70% of Alto migrations require zero fixes during validation.
6. What are the most common problems you encounter, and how do you handle them?
Why it matters: Experienced migration teams should be able to answer this immediately. If a provider struggles to explain where projects typically go wrong, that’s usually a warning sign in itself.
Alto’s answer: Alto regularly handles partial exports, duplicate records, missing field relationships and legacy system quirks. Problems are identified and resolved before import — not after.
7. Are there any limitations on the data formats or field types you can migrate?
Why it matters: Older CRM systems often contain heavily customised fields, unusual formatting or years of inconsistent data entry. You need to know whether the provider can genuinely handle that complexity.
Alto’s answer: Alto can migrate data from any system and any format, with no restrictions on field types or structures.
8. Will our business experience any downtime during the migration?
Why it matters: Many agencies worry migration means days of disruption while staff lose access to systems or wait for data to transfer. In reality, a well-managed migration should keep the business moving normally throughout.
Alto’s answer: With Alto, there’s zero downtime during migration. Your team keeps working right up until you go live.
What should estate agents do before migrating CRM data?
You don’t need a perfect database before switching CRM.
You should do some basic housekeeping, including removing genuine duplicates, fixing obvious errors and making sure contact details are up to date where possible.
You definitely shouldn’t delete years of records because moving it all feels daunting or messy, or because you want to have a fresh start. This often does more harm than good in the long run.
There’s no shame in a messy existing set-up. Most agencies have inconsistencies in their CRM after years of daily use and experienced migration teams fully expect that.
At Alto, we’re used to handling everything from partial exports and duplicate records to legacy system quirks and heavily customised databases. We know where migration problems usually show up and deal with them before the import starts.
What should estate agents check before CRM go-live?
Before your new CRM goes live, there are a few internal checks worth doing to make the switch smoother for your team. Most of them are straightforward, but easy to overlook when you’re busy — so use this checklist to make sure nothing important gets missed before launch day.
Appoint one internal migration lead. Choose one person to act as the main point of contact with your CRM provider. It avoids crossed wires, duplicated questions and confusion during the migration process.
Check who actually needs access to the new CRM. Go through your team and confirm who needs access, what level of permissions they need and whether any old user accounts can be removed.
Make a list of your current integrations. Document everything connected to your existing CRM, including portal feeds, accounting software, AML tools, marketing platforms and any third-party integrations your team relies on day to day.
Agree your go-live date early. Once the migration timeline is confirmed, communicate the go-live date clearly to staff. Nobody likes finding out a system is changing at the last minute.
Brief your team properly before the switch. Your staff do not need to know every technical detail. They just need clarity on what changes on day one, what stays the same and where to go if they need help.
Identify the reports and workflows your team uses most. Think about the reports, dashboards and daily processes your negotiators, lettings teams and managers rely on. Make sure equivalent workflows exist in the new CRM before go-live.
Review your current CRM contract. Check your notice period, data retention timelines and whether there are any exit fees or account closure requirements hidden in the agreement.
Set aside time for testing. Do not leave data testing to one quick glance before launch day. Give your team proper time to review records, workflows and reporting inside the test environment while changes can still be made easily.
What to expect during your CRM migration test
A proper test migration is one of the clearest signs you’re working with an experienced CRM provider.
You should never go straight from data export to go-live without checking your records first, and you should be wary of any provider that encourages this.
At Alto, a full test environment is delivered within 48 hours of receiving your files, giving your team time to review everything properly while changes are still easy to make.
Here’s what to check…
Spot-check older records as well as recent ones. Most migration issues show up in older data, not yesterday’s applicants. Check records from different years across both sales and lettings to make sure everything still looks right.
Review a few live deals thoroughly. Pick a handful of active clients and follow their timelines through from start to finish. Notes, offers, viewings and communication history should all still connect properly.
Make sure applicant records still behave normally. Search for applicants using different filters, keywords and matching criteria. Archived applicants and older records should still be easy to find.
Check property history, including archived listings. Do not just review current stock. Withdrawn properties, archived listings and older property records should still be accessible and complete.
Review notes and communication history carefully. Check that notes, call logs and interaction history have transferred properly and still sit against the correct contacts and properties.
Test any custom fields your team relies on. If your agency uses custom fields or bespoke workflows, make sure they still work the way your team expects before go-live.
Raise issues straight away. If something looks odd during testing, flag it immediately. Fixing problems before you switch is always easier.
What happens after your estate agent CRM goes live?
Most estate agencies find CRM go-live far less disruptive than they expected.
Here’s what to expect…
Day one: go-live. With Alto, there’s no downtime during the switch. Your team keeps working normally while the final import happens in the background. Most agencies are surprised by how straightforward go-live day feels. Focus on simple day-to-day tasks first, like searching applicants, booking viewings, checking diaries and sending property matches.
Week one: check the essentials. The first week is about making sure your day-to-day workflows run as you expect. Small tweaks at this stage are completely normal. Keep an eye on applicant matching, portal feeds, reporting, integrations, automated workflows and user permissions.
Days 8 to 30: start getting value. This is usually the stage where agencies start getting proper value from the move. Because your existing data has moved across intact, Alto already has years of context to work with. That makes tools like automation, reporting and AI features far more useful from day one. Teams can start using automated workflows to cut admin, smarter reporting and forecasting, intelligent targeting based on years of applicant and landlord history, and built-in AI tools like Alto IQ to help spot opportunities earlier and make better use of existing data.
The real risk is staying where you are
For many estate agents, staying on the wrong CRM is now riskier than switching.
Outgrown systems slow teams down, create extra admin and keep you locked out of AI and automation tools now shaping modern estate agency workflows.
Meanwhile, agencies using platforms like Alto are using built-in intelligence to work faster, spot opportunities earlier and get more value from the data already sitting in their CRM.
Ready to stop putting off your CRM switch?
Book a chat with the Alto team.
Frequently asked questions about CRM migration for estate agents
How long does CRM migration take for an estate agency? A well-managed estate agency CRM migration shouldn’t take months. Alto’s average migration takes 16 days from start to go-live, based on more than 1,600 migrations completed since 2019. Longer timelines are usually linked to older enterprise systems or poorly managed projects, not modern cloud-based CRM migrations.
Will we lose data when switching estate agent CRM? With an experienced migration team, you shouldn’t lose data during the switch. Most problems happen when providers lack migration experience or encourage agencies to leave older records behind to simplify the process. Alto has migrated data from more than 50 different CRM systems, with over 90% of migrations completed without issues (Alto migration data, 2025).
Do we have to run two systems at the same time during migration? No. An estate agent CRM migration shouldn’t leave your team stuck working across two systems for weeks. Alto’s migration process is designed around zero downtime, so your team keeps working normally right up until go-live.
What data actually transfers during a CRM migration? With Alto, everything transfers — sales and lettings records, accounting data, property history, notes, archived applicants, transaction history and custom fields — with no restrictions. Some CRM providers only migrate active records or recent activity, so always ask for a written breakdown of exactly what is and isn’t included before signing.
Should we clean our data before migrating CRM? A bit of housekeeping is sensible, such as removing genuine duplicates and fixing obvious errors. However, deleting years of records because it makes the switch easier or ‘cleaner’ is a mistake. Your archive of applicant, landlord and valuation data becomes more valuable over time, especially as AI tools become part of everyday roles.
What CRMs can Alto migrate data from? Alto has completed migrations from more than 50 source systems, including Reapit, Street, Jupix and DezRez. If you’re unsure whether your current system is supported, speak to the migration team directly.
What is the biggest mistake estate agents make when switching CRM? Starting fresh. A lot of agencies are told migration is a good opportunity to leave old data behind. In reality, that often means losing years of relationship history, applicant records and valuable context — the very data that AI tools and automation features depend on to work effectively.
Every CRM switch is unique. Talk to us about yours.
Book a chat with the Alto team.
