Mohamamd i am going to be controversial here and suggest to you that you consider the diy route.
There is nothing complicated about what you want to do. The only part i would say you pull an electrician in for is the part where you want to hook up to the existing panel.
You aint doing anything hi tech here not even two way switching etc.
With the way things a are designed and available in USA at home depot its really a not complicated and the savings you make will help with other needs and wants.
If it were gas, well i run a mile even though i know what to do i dont ever want to be around when the gas comes back on to find a leak.
Consider this plan of action and BTW i can dig out every receipt for my shop which as an immigrant i did myself.
1) Go to home depot and spend some time in the electrical dept. Buy the home depot electrical book. They will also have a copy of the abbreviated residential codes. At least they did in Canada and we usually have less than you guys.
2) Plan out your garage shop electrical location and needs. I can help you with this via email if you like.
Lets be rational you simply want a few light fittings a on off switch for the lights, a scattering of 110v receptacles and a few 220v receptacles.
All the wires need to lead to Rome which in this case is your subpanel.
The way these panels are made in NA there is no big deal to wiring them up especially for a simple install like this.
I would look at how the cable in the garage runs from the panel and examine if it could be replaced like someone mentioned via a conduit. Again home depot supplies fully shielded armor cable in short lengths and you can replace that yourself.
Then when you have it all connected up get the sparky in to do a check around and hook it into the main panel.
So why do i say do this yourself. Well in my case i have always tried to be self reliant. Was brought up that way and probably why i can relate to the American outlook of self reliance.
The electrical system where i come from is 220v and is quiet different. But again its not rocket science except like the UK we had a switch on every receptacle. That for some people added a degree of complexity.
When i set up my shop a significant influence in doing it was to obtain experience at the NA construction techniques. I would love to have had the time to build the structure myself but i settled for having the shell built for me.
When it came to my electrical i too got an electrician in. But he was a local in our community and hockey connection and he said look why dont you do it yourself. I had already planned out what i wanted to the last T so he realized i had knowledge of what i was doing. You can get to that same position pretty quickly. When i found out from him that the code here permitted one to do the work oneself provided you have a permit and have the electrical safety authorities do their tests along the way I did not hesitate. Heck i even roped my wife in as the cable puller and i had to pull a thick cable all the way from my panel in the basement through conduit into my shop.
The good thing is i know how its all wired and i did not skimp. I made sure to over kill in certain areas because for the small distances the extra cable was minimal cost.
In my case i put in a huge panel physically but just a 60amp main breaker.
I did my own insulation, own drywall and at the end of it i now have a knowledge and appreciation of the construction methods here.
Never again will i do drywall. But i will do my own basement now as far as the walls and electrical are concerned.
You have to be a technically minded character given you sorting out how to use a camera like you just recieved and have used tools and built a table like you shown.
You have just moved from an apartment to house. That house might need some work or you might want to change somethings at a later stage on a DIY basis. Here is an opportunity to easily get to grips with what is currently behind those walls at least electrically.
There are only three wires involved in normal electrical feed.
Live, Neutral and Earth. You just have to make sure to use the right cable and attach it in a manner that suites the building codes in your area. I am assuming you are going to surface mount this electrical in the "shop".
Even if you decide no you want an electrician to do it all, still buy the home depot book. Read up about it so that you know what is cooking to be able to asses whether he is doing it correctly.
Go and price out the material at home depot its not hard. At least this way you know what its gonna cost.
BTW that is the other beauty of the Diy route. You can do it incrementally and help the good old cash flow. Its not as if you live out in the country to the extent where a trip to the home depot is a major haul.
Here is a link to the book i am refering to. Its full of colored pictures that clearly show you what is what. I should have known you guys would get it for $5 less than us.
There is
also a DVD you can pick up via amazon for less than $5 bucks but i like the book better you can hold it next to you or scribble notes in it. But you might like the dvd too.
You can save yourself a pretty penny doing it my way and put that towards something else.
Think of something else that many of the guys here will take for granted, i dont know if you have kids but if you have some boys get them involved in helping yu that way they get to learn house maintenance too. Mine kick and scream but settle down after a while and actually start to enjoy it.
Let me know if you want some assistance we can email back and forth.
I am not trying to do the electrician out of a job here. But the electrician if he is honest like mine will tell you its not a huge job for them and his costs will not be proportionate to the time involved because of the overhead on a small job that is if he is pricing his work correctly.
Ok boys let me have it for encouraging him to become an amateur sparky.