A local citation is any mention of your business's name, address, and phone number online. Google collects and cross-references these mentions to verify that your business is legitimate and that its details are accurate.
When your details are consistent across directories — same business name, same address format, same phone number — Google's confidence in your data increases and your local rankings benefit. When they are inconsistent — old address still listed somewhere, phone number updated on the website but not on Yell, business name shortened on some listings — Google's confidence decreases.
Citation inconsistency is one of the most common and most fixable local SEO problems for trade businesses.
How to Fix Your Local Citations
Audit what is currently listed
Search Google for your business name and phone number. Look at what comes up: Yell, Yelp, Thomson Local, Checkatrade, Trustpilot, trade body directories, local business directories. Make a list of every listing you find and note where the details differ from what you currently want people to see. Free tools like BrightLocal's citation tracker can automate this process if you have a large number of listings.
Define your canonical NAP
NAP stands for Name, Address, Phone. Before fixing anything, decide on the exact version of each that you want used everywhere. The business name should be identical across all listings — 'JD Plumbing Ltd' not 'J.D. Plumbing' on some and 'JD Plumbing Limited' on others. The address should use a consistent format. The phone number should be in one format. Write this down. It is your canonical NAP and it should be used everywhere from this point forward.
Update the highest-authority directories first
Google Business Profile is the most important. Update it first. Then update: Yelp, Yell, Thomson Local, Bing Places, Apple Maps, Facebook Business. These are the directories Google references most often. After these, work through trade-specific directories relevant to your work: Gas Safe Register listing, NICEIC Find a Contractor, Trustmark, Checkatrade, Which? Trusted Traders.
Build new citations in directories you are not currently listed in
Beyond fixing existing listings, being listed in more credible directories increases your prominence signal. The key directories for UK trades are: Google Business Profile, Bing Places, Yell, Thomson Local, Houzz (for builders, decorators, landscapers), Bark, and trade body directories specific to your accreditations. Being listed in 40 to 60 consistent, credible directories is achievable for most trades and provides a meaningful prominence signal.
How long citation work takes to affect rankings
Citation fixes and new listings typically take 4 to 8 weeks to influence local rankings. Google re-crawls directory sites on different schedules. Some update quickly; others take weeks to reflect changes.
The impact is not immediate. But citation consistency is a foundational element of local SEO. It is worth fixing once, properly, and then maintaining. Every time you change your phone number or move premises, citation cleanup should be part of the process.