Stack & Tier

Stack & Tier

95% positive ratings (114 reviews)

Service providers on Amazon are required to be:

Stack & Tier professionals are background-checked by Amazon
Stack & Tier professionals are licensed (if applicable)
Licensed (if applicable)
Stack & Tier professionals are top-rated performers
Proven performers
Stack & Tier professionals are required by Amazon to maintain any necessary insurance and trade licenses
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All of our pros are:

We only invite providers who have a strong track record of service quality. We screen through a combination of media searches, online interviews, and reference checks.
We conduct comprehensive business background checks and require each provider you work with to pass a 6-point criminal background check.
Licensed and insured
All providers are required to maintain any necessary insurance and trade licenses.
Proven Performers
Providers must meet ongoing performance targets including responsiveness, quality, and ratings.

About Stack & Tier

Stack and Tier is a handyman service including smaller scale repairs and renovations, with a unique competency with information systems including solution stacks, hardware and networks. This organization is owned and operated by the Sole Proprietor, Karl Erdmann. Learn more by visiting

Specialty Skills

  • Handy Work / Craftsman
  • Systems Consulting & Support
  • Assembly
  • Home Automation / Smart Home Installation / IoT
  • Custom Installation


Licensee Name License Type License ID/Number Expires State Add'l Jurisdiction 1 (if applicable) Add'l Jurisdiction 2 (if applicable)
Stack & Tier General Contractor STACKT*827B5 01/25/2020 WA
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Stack & Tier Reviews

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