Hey Big MAc. We specialize in metal and flat roofing. If you decide on metal, the lowest cost metal (5-V Crimp or any other thru fastened panel) in plain Galvalume is going to be almost twice the cost of shingles. Standing seam, and in a Kynar color coated panel is really gonna set your hair on fire. Your looking at $550 a square average if it's walkable, not to cut up of a roof, ect. The price can go up or down depending on the size of your roof, bigger, the price can come down a lil per sq, smaller, might get higher. Also that does not include the cost of shingle tear-off (which surprisingly not very high.)
Also, Santa Rosa County is being a little leniant with some of the new laws passed, and are only requiring a roff deck renailing (not the whole hurricane clips, minimum thickness decking ball of wax), but still requires stripping your whole roof, waiting for the nail off inspection before even felting it. Torn off roofs with nothing but a tarp on it in the meantime scare the hell out of me and my liability incurance underwritter, as I am sure they scare all other roofing contractors.
Shingles are going to run you in the $195 per square range,(30 year Dimensional, chimney flashings, ridgevent, ect)complete. (well other than the labor for renailing decking in Santa Rosa. Again, that price depends on house size. Smaller roof will be more per square, since certain things cost the same regardless of size, like dump container, ect.
Now many other companies can do shingles at a more competitive price, because that is mostly what they do. We mostly do commercial roofing, and can't be as competitive on residential shingles. Whatever you do though, ask for refeences, lots, with phone numbers, pictures of completed projects, ect, so that you have less chance of selecting the wrong contractor. Xanadu on here does shingles on a regular basis, and Getsome owns a large local company.
Feel free to give me a call, even if you don't plan on metal, or my prices are too high on shingles, I'd still be glad to answer any questions if needed.
As far as repairs, yes, you can remove entire shingles without damiging the surounding ones if you have a flat bar, and know where and what nails to remove, how to put the new one in and seal it, and where to renail,and are careful.We have done tons of repairs, and I charge a minimum of $300 for repair work, weather it takes 5 minutes, or 8 hours. My guys are on a project now, but I would do it myself if you are intrested. Christmas is around the corner, I'm getting a new custom speargun, and I just outlayed a bunch of cash onbusiness expences, so me doing it and keeping the cash would make me smile. And if I do it myself, thats kinda like "extra credit" money, and my wife can't get mad when it goes on my new speargun!
My number is (850) 777-1221
Clay
BOSS COmmercial Building Services
Heres a link to an older post with a few pics, mostly metal...
http://pensacolafishingforum.com/fishingforum/Topic7365-2-1.aspx
Heres some more shingles.
Below is one of DKdivers and Rocklobsters houses, first house we did when we got to FL three years ago.