The Thread Title is "Logo on my site crappy?"
Short answer: Yes!
Longish answer: It's probably the least of your problems on your site.
First off, listen to Carl, it's a gif, and is way lower rez and quality than you can get with a .png. Also, you can do true transparency with a .png, so whatever your background is, it will show through without all that "picture dust" around it.
But I would worry about that less than these points:
Your site seems to be lacking a strategy. What is your visitor hoping to accomplish from this site?
Looking for info?
Book an appointment/estimate?
Find out your prices?
What are you trying to get out of your site?
Provide answers to problems?
Info about your company/services?
Use it as a marketing tool/branding?
Lead Generation?
Frontpage is the Harbor Freight or Ocean State Job lots of web design software. MS doesn't even make it anymore. If money really is a concern, use Wordpress or Joomla.
Your color scheme screams "Where is the light switch, it's burning my eyes!" The lime green buttons on the red background make for pretty rough reading.
Even if you like the design, think about what your visitors will think. If your target market isn't kids or comic book collectors, I would consider changing it to more subdued tones.
Compare your site to this one:
http://www.landscapedesign.com/
Even though it's flash (DONT USE FLASH), you could do the same without flash. Which one will be perceived as more professional?
Nothing lines up, colors are all over the place, text is bunched up an clearly keyword stuffed to the max (will get you a Google Slap for sure).
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Gotta run, and I probably pissed in the cheerios enough for one post, but I hope you understand it certainly isn't a personal attack. You're pictures are beautiful, and it looks like you do some killer work, but your website needs some TLC.