AllSeason Heating, Air & Electric

AllSeason Heating, Air & Electric was founded in July 2015 by Jeffrey Barrett and operates from 8667 S Quebec St in Littleton, CO 80130. The family-owned company holds NATE-certified technicians and carries general contractor licensing, serving Littleton and the adjacent Highlands Ranch neighborhood across a wide geographic radius. With 76 verified client reviews averaging 4.8 stars, AllSeason has built a steady reputation in the Denver metro area since formally opening its doors to the public in 2018. The company maintains open scheduling every day of the year, including weekends and holidays, with no documented closure dates across the current calendar period.

What distinguishes this contractor is a combination of technical depth and availability that most competitors in the Littleton market cannot match. AllSeason lists 24-hour emergency AC service as a core offering alongside heat pump services, suggesting a deliberate investment in equipment and staffing to handle urgent calls at odd hours. Indoor air quality services appear on their service menu, addressing a concern particular to Colorado homeowners contending with dry climates and seasonal wildfire smoke that can degrade interior air quality. The company offers same-day service requests during standard business hours, giving non-emergency clients a realistic turnaround without requiring after-hours premiums.

Two separate reviewers highlighted specific technicians working at the company. Dean installed a two-furnace system at one Littleton home, taking time to explain maintenance around the exterior vent during Colorado winters and ensuring both the interior and exterior workspace were left clean. Terrance conducted an on-site inspection at another home, presented multiple equipment options with a transparent cost-benefit breakdown, and helped the homeowners select the right model for available energy rebates. A third reviewer noted Greyson handling a multi-week heat pump and mini-split installation, with the crew correcting minor issues promptly as they arose and assisting the homeowner with rebate documentation after the job concluded.