Allied Air Conditioning & Heating
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About Allied Air Conditioning & Heating
Allied Air Conditioning & Heating has anchored itself in Libertyville, Illinois, building a reputation grounded in nearly two decades of continuous service to the community. With an exceptional 5.0-star rating derived from 453 client reviews, the company has demonstrated unwavering consistency in delivering heating and cooling solutions across Lake County. The operation maintains 24-hour availability throughout the week, ensuring residents of Libertyville and neighboring communities never face a heating or cooling emergency without access to professional support. This longevity and review volume reflect a contractor that has earned sustained trust within a demanding suburban market.
What distinguishes Allied Air Conditioning & Heating from regional competitors lies in their comprehensive equipment portfolio and transparent business practices. The company handles the full spectrum of residential climate systems including traditional forced-air furnaces, ductless mini-split heat pumps, and tankless water heaters, an uncommon combination that lets homeowners consolidate their mechanical contractors. Review accounts consistently highlight competitive pricing; one customer noted a quote several thousand dollars below a competitor's bid for identical water heater work. The technicians take time to walk clients through every procedure and demonstrate verified proper installation upon completion, rare practices that reduce future service calls and build long-term client confidence.
Customer narratives reveal specific technicians delivering measurable value. When Jim Thomason needed his parents' water heater replaced, Zac and Marco arrived with a crew days after the initial quote, completing the installation in just hours while explaining each step. For Gaja Mohandass, sales representative Bob made multiple on-site visits to finalize furnace specifications, while installer Jesse arrived punctually, worked cleanly, and provided detailed post-installation guidance. When Steven Fehlhaber's furnace failed, Whittaker secured same-day service, a critical response during extreme temperature periods. These named technicians embody the consistent professionalism that generated the company's 453 five-star ratings.
What Customers Say
Across three profiled reviews, every customer awarded a perfect 5-star rating, with 2 of 3 mentioning same-day or same-week emergency response times. Pricing transparency emerged as a recurring theme, both Jim Thomason and Gaja Mohandass specifically praised competitive quotes relative to competitor bids. Technicians Zac, Marco, Jesse, Bob, and Whittaker were individually named by reviewers, suggesting a stable, recognizable service team.
Working Hours
| SundayToday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
Air Conditioning Repair & Installation
Complete AC diagnostics, repair, and new system installation including traditional split systems and ductless configurations.
Furnace Heating Services
Forced-air furnace repair, replacement, and new installation with professional sizing and efficiency optimization.
Mini-Split Heat Pump Systems
Ductless heat pump installation offering zoned heating and cooling without extensive ductwork.
Tankless Water Heater Installation
On-demand water heater installs with proper venting, gas line connection, and system verification.
Preventive Maintenance Programs
Scheduled tune-ups designed to extend equipment lifespan and minimize emergency repair frequency.
Emergency Repair Services
24-hour urgent response for HVAC failures regardless of day or holiday, with same-day arrival when needed.