Alter Systems, LLC

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2313 4th St
Berkeley, CA 94710

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(510) 704-0108
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Best

I was doing some remodeling and Alter Systems was on point with price and dealing with other contractors and their timelines. They handled all the paperwork, permits and rebat...

Worst

All reviews seem positive

Happy Customer! 3/5/2012

Alter Systems did a great job on my house here in Berkeley. They put in a 3.6 kW grid tie system in three day, Nice! :) Before you go ""solar city"" on your roof, let Alter Systems have a crack at it, they were professional, on-time, and courteous, not to mention better priced than all the other bids I got. Frank more
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Great Solar PV Contractors 3/2/2012

I was doing some remodeling and Alter Systems was on point with price and dealing with other contractors and their timelines. They handled all the paperwork, permits and rebate and explained the process. I've recommended them to 2 of my collegues at work. One happened to go with them and I received a referral fee to boot, which was unexpected, but really appreciated. I purchased, but they have a zero down lease too. more
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  • Neighborhoods: Southwst Berkeley
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