AC Installation Services in Des Plaines, Mundelein, Glenview, Arlington Heights & Buffalo Grove

Professional AC Installation for Maximum Comfort and Efficiency

When the scorching Illinois summer hits and you need AC installation in Des Plaines, Mundelein, Glenview, Arlington Heights, or Buffalo Grove, Legendary Service delivers cool comfort with systems perfectly sized for your home and expertly installed by certified technicians. Whether your old air conditioner has finally given up after one too many humid summers, or you’re upgrading to a high-efficiency system to slash those mounting energy bills, we make the entire installation process smooth, transparent, and surprisingly affordable.

Why Professional AC Installation Matters

The difference between a properly installed air conditioning system and a rushed job can cost you thousands of dollars over the life of your equipment. Here in northern Illinois, where summer humidity makes 85 degrees feel like 95, your air conditioner works overtime from May through September. A system that’s incorrectly sized or improperly installed won’t just struggle to keep your Glenview home comfortable—it’ll consume up to 30% more energy while failing years before its time.

Professional AC installation starts long before the first wrench turns. It begins with understanding your home’s unique cooling challenges, from the sun-baked rooms facing west in Arlington Heights to the humid basement spaces common in Des Plaines’ older neighborhoods. Every detail matters: the direction your windows face, the insulation in your attic, even the number of people living in your home. These factors determine not just what size system you need, but how it should be configured for optimal performance.

The stakes are particularly high in Buffalo Grove and Mundelein, where newer construction often means tighter building envelopes. Today’s energy-efficient homes trap air differently than older buildings, requiring precise calculations to avoid oversizing—a common mistake that leads to short cycling, poor humidity control, and premature system failure.

Our Comprehensive AC Installation Process

At Legendary Service, our AC installation process has been refined through thousands of successful installations across the northwest suburbs. We begin with a thorough home assessment, measuring not just square footage but calculating your actual cooling load using industry-standard Manual J calculations. This scientific approach ensures your new system is perfectly sized—not too small to keep up on the hottest days, and not so large that it cycles constantly without properly dehumidifying your air.

Next, we help you select the ideal system for your needs and budget. With SEER ratings now ranging from 13 to over 20, the efficiency options can seem overwhelming. We explain in plain English how a 16 SEER system could save a typical Glenview family $300-400 annually compared to an older 10 SEER unit, and how federal tax credits and ComEd rebates can offset higher-efficiency system costs.

Once you’ve chosen your system, we handle all permits required by Des Plaines, Arlington Heights, and other local municipalities. This often-overlooked step is crucial—improper permitting can cause problems when selling your home and may void your homeowner’s insurance coverage. Our team knows the specific requirements for each village we serve, ensuring your AC installation meets all local codes.

Installation day runs like clockwork. Our crews arrive on time, protect your floors and landscaping, and work efficiently to minimize disruption. We remove your old system responsibly, recycling refrigerant according to EPA guidelines. The new installation includes properly sizing and sealing ductwork connections, installing a new thermostat if needed, and ensuring electrical connections meet code. We never cut corners on crucial details like properly evacuating line sets or precisely charging refrigerant—steps that directly impact efficiency and longevity.

Benefits of Choosing Legendary Service

What sets our AC installation service apart isn’t just technical expertise—it’s our commitment to your long-term comfort and satisfaction. Unlike companies that disappear after installation, we register your warranty, set up your first maintenance appointment, and remain your cooling partner for the life of your system.

Our installation teams are NATE-certified and factory-trained on all major brands. This means your warranty remains fully protected, and you benefit from manufacturer support throughout your system’s life. We’re authorized dealers for premium brands, giving Mundelein and Buffalo Grove residents access to extended warranties and special financing options not available through general contractors.

We also provide something competitors don’t: a comprehensive education about your new system. We’ll show you how to optimize settings for Illinois’ varying humidity levels, when to change filters based on local pollen counts, and how to recognize early warning signs of potential issues. This knowledge empowers you to maximize efficiency and prevent minor issues from becoming major repairs.

Our lifetime workmanship warranty means if anything related to our installation fails, we fix it free. Period. This protection, combined with transparent pricing and multiple financing options, makes professional AC installation accessible for families throughout our service area.

Serving Des Plaines, Mundelein, Glenview, Arlington Heights & Buffalo Grove with Local Expertise

Living and working in these communities gives us insights no out-of-town contractor can match. We know that homes near the Des Plaines River need extra attention to drainage and condensation management. We understand that Glenview’s tree-lined streets mean more frequent coil cleaning. We’re familiar with Arlington Heights’ mix of historic and modern homes, each requiring different installation approaches.

Our warehouse in the area means we stock the most reliable systems for our climate. When Mundelein experiences its first heat wave and everyone suddenly needs AC installation, we have units ready to install—no waiting weeks for special orders. Our local presence also means faster response times for any future service needs.

We schedule installations strategically around Buffalo Grove’s peak traffic times and work with your schedule, offering evening and weekend appointments. As your neighbors, we treat your property with the respect we’d want for our own homes.

Frequently Asked Questions

• How long does AC installation take? Most standard AC installations in Des Plaines and surrounding areas take 4-8 hours. Complex installations involving ductwork modifications or electrical upgrades may take 1-2 days. We provide accurate timelines during your consultation.
• What size air conditioner do I need? Size depends on multiple factors including square footage, insulation, window placement, and occupancy. Our Manual J calculations ensure proper sizing. Most Glenview homes between 1,500-2,500 square feet need 2.5-4 ton systems, but only professional calculation guarantees the right fit.
• How much can I save with a high-efficiency AC? Upgrading from a 10 SEER to 16 SEER system typically saves Arlington Heights homeowners 35-40% on cooling costs. With average annual cooling bills around $800, that’s $280-320 yearly savings, plus potential rebates up to $1,000.
• Do you offer financing for AC installation? Yes, we offer multiple financing options including 0% interest programs for qualified buyers. This makes new AC installation affordable with payments often lower than monthly energy savings from increased efficiency.
• What brands do you install? We’re authorized dealers for all major brands, allowing us to match the perfect system to your needs and budget. We’ll explain the pros and cons of each option during your consultation.

Ready to Schedule Your AC Installation?

Don’t suffer through another sweltering Illinois summer with an failing air conditioner. Professional AC installation from Legendary Service ensures your home stays perfectly comfortable while minimizing energy costs for years to come. Serving Des Plaines, Mundelein, Glenview, Arlington Heights, and Buffalo Grove with expert installation, competitive pricing, and unmatched local service, we’re ready to transform your home’s comfort. Call today for your free AC installation consultation and discover why your neighbors trust Legendary Service for all their cooling needs.

AC Efficiency Comparison Chart

*Savings based on upgrading from an older 10 SEER system in typical Illinois climate.