Alter Systems, LLC.

2313 4th Street | Berkeley CA 94710   ...more
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Rating:
4.79
Based on 24 Reviews

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Company Description:
Alter Systems was founded in 2004 to meet the growing demand in the United States for alternative energy solutions for homeowners and commercial businesses. ... (more)
Services:
  
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Accreditations & Affiliations:
  


 
PetersenDean Roofing & Solar Energy
PetersenDean Roofing and Solar is the only major solar company that is also a licensed roofer. We provide solar roofing solutions... (more)
4.63

(27 reviews)

Alter Systems, LLC. Reviews

Detailed Ratings

Sales Process4.75
Quality of Advice4.75
On Schedule4.63
Price as Quoted4.87
Professionalism4.75
After Sales Support4.70

Overall Ratings
    19
    5
    0
    0
    0
Would you recommend?

Would Recommend this Installer Yes 24 reviews


24 Reviews


Company did a great job in redesigning system at no additional cost to accommodate requests made by the City... (more)
   Type: Residential Electric
Excellent
Alfred T.
Reviewed: 06/10/2011



It was a pleasure to work with the entire crew of Alter Systems-they were very informative, professional,... (more)
   Type: Residential Electric
Excellent
Annette v.
Reviewed: 10/05/2009





   Type: Residential Electric
Excellent
Allan C.
Reviewed: 07/03/2009





   Type: Residential Electric
Excellent
Terry C.
Reviewed: 06/30/2009



Have recommended Alter Systems to many colleagues.

   Type: Residential Electric
Excellent
Keith R.
Reviewed: 04/24/2009



The system was installed with superior workmanship by the date promised. Alter Systems is highly... (more)
   Type: Residential Electric
Excellent
Nathan G.
Reviewed: 04/07/2009





   Type: Residential Electric
Good
Susan W.
Reviewed: 03/30/2009



I was particularly impressed with their knowledge of the technology, as well as, their professionalism. I... (more)
   Type: Residential Electric
Excellent
Fernando V.
Reviewed: 03/27/2009





   Type: Residential Electric
Good
Mike K.
Reviewed: 03/26/2009





   Type: Residential Electric
Good
David N.
Reviewed: 12/28/2007





   Type: Residential Electric
Excellent
Karen M.
Reviewed: 12/18/2007





   Type: Residential Electric
Good
Mike K.
Reviewed: 12/18/2007



Our PV installation had the challenge of being installed on a cedar shake roof. Alter Systems was the only... (more)
   Type: Residential Electric
Excellent
Marc W.
Reviewed: 10/15/2007



Those doing the work (the subcontractor doing the installation) needed to be present at the pre-construction... (more)
   Type: Commercial Electric
Good
Chris a.
Reviewed: 07/31/2007



Some of my early emails were not returned due to being inadvertently directed to Alter`s spam box, so... (more)
   Type: Residential Electric
Excellent
Kaveh R.
Reviewed: 07/26/2007



Contractor was very professional in every aspect of the transaction.

   Type: Residential Electric
Excellent
William F.
Reviewed: 05/16/2007



They know their stuff!

   Type: Residential Electric
Excellent
Leanard S.
Reviewed: 05/01/2007



I rather enjoyed these fellows. They were They had a good design team folled by a quick installation. I... (more)
   Type: Residential Electric
Excellent
Pablo V.
Reviewed: 03/22/2007





   Type: Residential Electric
Excellent
Steve C.
Reviewed: 02/20/2007



Pleasant, efficient people to work with

   Type: Residential Electric
Excellent
Charles T.
Reviewed: 02/19/2007



I am very pleased with the system and haven`t had a second thought about wether or not I did the right... (more)
   Type: Residential Electric
Excellent
Scott A.
Reviewed: 02/15/2007





   Type: Residential Electric
Excellent
Gilda B.
Reviewed: 02/14/2007



THis is a great company with great customer service. They kept me apprised via email throughout the... (more)
   Type: Residential Electric
Excellent
Christina B.
Reviewed: 02/14/2007



Over all a very satifactory experience. I found altersystems to be the best price of all other companies i... (more)
   Type: Residential Electric
Excellent
Javier V.
Reviewed: 11/21/2006




Service Areas:

This company has not specified their service areas

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