We highly recommend Northpoint Solar for your choice in the best solar company in Colorado.:

  • Is fully licensed by the California Contractors Board.
  • Carries Liability, Auto Insurance, and Workers Compensation Insurance.
  • Provides a two-year installation warranty on all our work.
  • Provides a five-year warranty on our roof attachments.
  • Provides solar collectors with 10-year, 20-year, and lifetime warranties.
  • Provides the highest quality in parts and products, field-tested in thousands of application since 1974.
  • Has been awarded the Consumer Value Star for customer’s satisfaction for five consecutive years.
  • Was a selected “City of Palo Alto Utilities – Gold Star Contractor.”
  • Has been recognized as a “Best of the Best” Master Dealer, a Nation-wide award by Solar Industries every year since 1992.
  • Was chosen “Most Professional Solar Company” by Gull Industries.
  • Is proud to have been selected to the California Solar Energy Industries Association (CALSEIA) Honor Roll.

ALTEN Products Company is proud of the service we have provided thousands of our customers for 33 years.  We hope we may put our experience to work for you.


“The completed installation…elicited praise from the city inspector and PG&E representative.  Compliments to Alten on a very fine product and unusually competent personnel.”
-Bob & Tis Schweiso
Sunnyvale, CA

“I’m writing you to let you know how pleased I am with the work Alten did on my solar system.  It was a pleasure doing business with you.”
-Rosalie Volz
Menlo Park, CA

“Follow through, being on time, getting the job done on time, giving the client a feeling of confidence…and most of all plain old courtesy.  My appreciation for a job well done.”
-Gregory Deane
Palo Alto, CA

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