How difficult is it to put spark plugs in a car?

I have a Honda CRV that has about 204k miles on it. I’ve had the majority of work done at the Honda dealer, and it hasn’t needed much other than routine maintenance, filters, brakes, and of course I get new tires when needed. Tires I get from Costco. It’s a great car and when it needs work, I get it done.

Anyway, I digress. Recently I had it at the dealer for an oil change and they told me it needs spark plugs, alignment, engine filter, front brakes, and the brake fluid and transmission fluid changed, totalling about a thousand dollars, plus it needs new tires. It also needs a cabin air filter but I can do that myself and have done it – it’s about a two minute job.

I have had back brakes done at a local mechanic and I know with him I can save a little by paying cash.

My question is, is spark plugs something I should go to the local guy for, or am I better off getting them done at the Honda dealer? I am considering whether to get the spark plugs done at the dealer and the rest done at the local mechanic shop.

It’s not that I don’t trust the local mechanic shop, it’s just that I know if it comes to the engine (which is what the spark plugs involve), it’s critical that it’s done right.