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Address Lookup Ropes

Deduplicating Services

Duplicate contact records are wasteful, costly and bad for your brand and so removing duplicates is essential. All data cleansing tools must look beyond simple exact matching to include records that are close matches too.

Quite often we don’t understand how many duplicates are within our customer data until we try to move the data between systems. If this isn’t sorted straight away then a number of issues will occur. As the old adage says Rubbish In, Rubbish Out.

Duplicates can be disguised in a number of ways, the most visible form being a direct carbon copy of another record. These are the easiest to spot. However the most common (and harmful) type of duplicate data is a partial duplicate. These are records that may contain the same name but the address is just slightly different e.g., Warrick Avenue instead of Warwick Avenue or the same address but different people, Jo Bloggs and Joanne Bloggs.

Duplicate data can have a massive effect on the success of your Sales & Marketing campaigns.


to ensure optimum accuracy


Maximise Marketing Budget

For a database of 50,000 records, if 5% were duplicates then based on delivering 2.5k unnecessary brochures at a cost of £4 per brochure, the waste for each marketing campaign is £10k. That’s not mentioning the damage to your brand's reputation if multiple brochures land on your customer’s doorstep.


Enhance Productivity

Spend less time sorting through your data and dealing with duplicates. Editing data by hand is a time-consuming task, often taking days or weeks in large databases.


Improve Your Reporting

Duplicates held in disparate databases eliminates your Single Customer View, which results in an incomplete picture of your clients. Creating a single source of truth gives cost savings, increased data confidence, improved sales, operational efficiency and compliance.


Identify Fraud

Spot patterns of usage at an address. E.g., many fraudulent applications have only slightly tweaked details to escape the net. The culprit may use the same name, same street, town, postcode but a different house number. Looking at “possible duplicates” can highlight properties that are continually requesting credit.


You can deduplicate your data in three ways with Hopewiser



Simple, fast and accurate online data cleansing tool

Can also use latest sources: PAF, Deceased, Goneaway, MPS and TPS.

User friendly wizard to guide you through.

Free summary report before deciding to pay. Price starts from £30.

Secure by design. Guaranteed secure data transfer and storage.



No limitations. More cost effective for large data users and high frequency cleansing. More deduplication options.

Increased abilities. Manual data cleansing options. Easy to setup as part of a larger workflow.

Bespoke. Ability to tailor the software for a more bespoke user experience.

Ideal for Sensitive Data and Compliance. Data on site.

Works On Many Platforms. Includes a Developer’s Kit.


Professional Services

Access to data consultants, product specialists, data project management, integration specialists.

Knowledge to assist/run projects to make the most of your data or help you to integrate solutions.

Bespoke service for more complex requirements including consolidation. (Single Source of Truth).

Identify data problems and match the solution to rectify the issue.

Data analysis and enrichment projects.

How can you audit the quality of your address data?

If you’re unsure about the accuracy of your customer data and if it’s compliant, the good news is that completing an audit to find out is straightforward.

And, with Hopewiser, you can get a data-quality audit completely free!

Register now and you’ll have access to our cloud data-cleansing service; just upload your list and let our system tell you how many duplicates you have.  You can also validate a sample of your data against essential data sources including the latest Postcode Address File (PAF), Deceased, Goneaway, Suppression, MPS and TPS data sets.

There’s no obligation to purchase and no payment or credit card required to audit your data. The data quality report is completely free and yours to keep!

And, if you do decide to cleanse all your data with our cloud service, our “pay-as-you-go” model means no wastage – you only pay for what you need.

Watch the video and see how easy it is
to get your FREE data quality audit