How much does whole house generator installation typically cost?

Whole-house generator installation typically costs $3,000–$35,000 for a 10–22 kW system in Longmont and Boulder. Final pricing is confirmed after an on-site assessment of your home’s load, gas or propane setup, automatic transfer switch, and site prep. Most installs take 4–8 hours. Titus handles permits and installs to NEC 2023 standards. Xcel Energy may offer a $500 rebate for eligible energy-efficient installations, and Titus provides rebate application help.

Updated: 2025-12-23

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