Try Level Line. I’ve used them to replace gutters on my house several years ago, fair pricing and efficient installation. They are a West Seattle company. http://levellinegutters.com/Home.html
I recently used LevelLine gutters and was very pleased with the result. They were able to reconfigure some of the gutters so that they weren’t so obtrusive. Cost was around $900 for a 700 sq. ft. house.
They seem to be out of business. I tried to find them to no avail and the address where they are listed is actually up for sale. Apparently the original owner sold out and new owners went out of business. Try All About Gutters in Renton. They did a good job for me about a month ago, have been in business a long time, reliable, cost effective.