LeafGuard system: use .032" aluminum 5" gutters with 3x4" commercial size downspouts. Gutter and leaf guard is a one-piece system, no seams except at mitered corners (we have 1). Quoted us $2059.55 including all "discounts" (price with no discounts was $2,423). Discounts are for things such as: allowing them to place a sign in our yard, install at their discretion (currently running about 2-3 weeks out), prepayment at time of order, and 50% labor special they currently have. No biggie - we can deal with all of that. Since we'd be paying with a credit card, I don't mind prepayment as we could always contest the charge if for some reason they didn't do it or did a crappy job). They have a lifetime, transferable warranty. Their system does NOT go underneath any shingles, therefore any shingle warranty is protected. They included a facia support in the quote because the facia on our house is "stepped", and this would provide more support behind the gutter.
Gutter Helmet of Michigan: use .032" aluminum 5" gutters with standard 2x3" downspouts. The gutters are a one-piece seamless system, except at mitered corners, and the helmets are in 5' sections. Quoted us $3,720.82 with all "discounts" (price without discounts was $5,104). Discounts are for: 10% ad special, Volume discount of another 10%, 1st visit discount of 10%, and cash/credit card payment discount of 3.5%. Since we'd be getting both gutters AND the helmets, it comes with a lifetime transferable warranty. Their system goes underneath the 2nd row of shingles, but they have letters from the various shingle manufacturers stating that if properly installed, the Gutter Helment system would NOT void any shingle warranty. If we needed to re-shingle our roof, they would charge $2/foot ($200 in our case) to take down the system and put it back up. Neither we nor the shingle installers can remove the gutter system. Don't really like that part of the deal. They did NOT include any facia support; he didn't think it was necessary.
GutterGuardian: use .032" aluminum 5" gutters with standard 2x3" downspouts. The gutters are one-piece seamless system, except at mitered corner. I'm not sure about the gutter protection system, as the quote does not state whether it's seamless or not - I would guess that it comes in 5' sections like Gutter Helmet does, since LeafGuard touts itself as being "the only one-piece debris shedding gutter system on the market today.". Quoted us $1,919 for everything, gutters and protection system. Comes with a 20-year guarantee. Does not say if it's transferable if we sell the house. Their system goes under the 2nd row of shingles also. They provided no mention of whether or not the shingle warranty would be protected. They did include a facia support to go between the stepped-back facia and the gutters.
Please reply with any comments on ANY/ALL of these systems. Thanks!