Do you use local suppliers for all your electrical components like consumer units, cable, sockets etc. or are there national/online suppliers you'd recommend checking out? 

Superlec direct are pretty good for CU’s, SWA, cable tray etc.

I've been using TLC for some time, their range is good.

I used a local branch of national chain, handy to get additional supplies as the installation progresses and take back what you don’t use. I mail ordered a lot of other stuff but electrical components need to be available to avoid holding up electrician, or losing him to another job. Do check prices are reasonably competitive but availability is sometimes more important.

Not used them before, but there is a Yesss Electrical local to me, any feedback on them?

Screwfix, Toolstation CPC and TLC-Direct for me.  Published pricing so you know what you are getting and can check stock on line if collecting or get it delivered.

 

I gave up with "wholesalers" long ago due to random (not published) pricing, very often more expensive than the above, and often poor stock levels.

1 hour ago, Gone West said:

I've been using TLC for some time, their range is good.

I have rarely had to go anywhere else.

 

 

Lamplec for my Fusebox consumer units generally. TLC for most other bits. 

TLC for me too, unless I need hands-or -eyes-on.

The prices are best of near to best.

And heavy cable is by the m and saves waste.

 

I think that SF and TS  charge as much as they can, relying on just in time purchases on the way to the job. If it's not in stock that is a big failure in my opinion.

 

And the likes of City Electrical charge as much as they can, relying on their trade clients using the credit account for cashflow.

 

My most recent order from TLC was downlighters based on BH advice.

Ordered one evening, arrived next morning in their own marked van. That service deserves repeat orders.

+1 for Superlec, and internet-electrical are good for Fusebox CUs.

Thanks for the various suggestions, I'll check them out…

4 hours ago, Gone West said:

I've been using TLC for some time, their range is good.

And they deliver. 
 

Been using the one down the road for 20+ years, always great price / value, and stuff is usually in stock. 

FSCables has been recommended on 't 'ub for Cat6. Also, I've used them for multicore e.g. for LED strips.