Four Seasons Heating, Air Conditioning, Plumbing, Sewer & Electric
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About Four Seasons Heating, Air Conditioning, Plumbing, Sewer & Electric
Four Seasons Heating, Air Conditioning, Plumbing, Sewer & Electric has served Crystal Lake homeowners for 54 years, building a reputation across 503 verified reviews that earned a 4.8-star average. Their certified technicians operate 24/7 from multiple regional hubs, responding to emergencies throughout Crystal Lake alongside nearby communities Coventry, Lake in the Hills, and Rakow Meadows. This multi-trade operation holds valid state licensing for HVAC, plumbing, and electrical work, qualifying them to handle complex calls that require expertise across disciplines, from diagnosing a failing heat exchanger to trace-gas testing a suspected leak.
What distinguishes this contractor from smaller operations is their scale: they maintain in-house teams for heating, cooling, plumbing, sewer, and electrical under one organizational umbrella. Their website lists specialized offerings including ductless mini-split installations, tankless water heater repair, generator sizing for residential backup power, and EV charging station installation. They also advertise free written estimates for both furnace and AC replacement projects, allowing homeowners to compare options without commitment. This breadth eliminates the need for separate specialty calls when concurrent issues arise, such as discovering gas line problems during a boiler replacement or electrical capacity limits during a heat pump upgrade.
Customer stories from recent reviews name specific technicians and their approaches. Sergio earned praise from Bonnie Lipp for thoroughly explaining repair options before starting work, taking time to address questions from both her and her husband. Josephine Marquez highlighted Nathan's refusal to redirect her call elsewhere, he handled her furnace complaint directly, provided warranty documentation, and completed the visit without escalation. These individual accounts reveal a decentralized service model where technician skill, not dispatch protocols, determines job outcomes.
What Customers Say
503 reviews yield a 4.8-star average, with 3 of 4 named technicians, Sergio, Nathan, and another tech, receiving direct positive mention for communication and problem-solving. Single negative reviews cite disputed diagnoses and pricing disputes, representing less than 1% of total feedback.
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
Furnace Repair & Installation
Diagnoses, tune-ups, replacements, and new installations for forced-air heating systems.
Heat Pump Systems
Mini-split ductless and conventional heat pump installation and year-round maintenance.
Central AC Service
Summer cooling system repairs, maintenance, and energy-efficient replacement recommendations.
Plumbing Repairs & Installations
Water heater replacement, sump pump repair, leak detection, and gas line installation.
Sewer & Drain Services
Camera inspection, rodding, trenchless repair, and drain cleaning for main lines.
Electrical Panel & Wiring
Panel upgrades, circuit breaker repair, surge protector installation, and safety inspections.
Generator Installation
Sizing, installing, and maintaining residential standby generators for backup power.