Expert HVAC Installation | Free Estimates | Flexible Financing | High-Efficiency Systems
Don't wait until your old AC fails in 100° Texas heat. Upgrade to a new, energy-efficient system today.
Texas summers put serious strain on your air conditioning system. The average AC lasts 15-20 years, and when yours reaches the end of its lifespan, you need a trusted partner for installation.
At LEX Air Conditioning, we've been installing high-efficiency HVAC systems across the Dallas-Fort Worth metroplex since 2004. Our licensed technicians will guide you through the entire process — from selecting the perfect system for your home to professional installation and ongoing maintenance.
Don't wait until your system fails completely — watch for these warning signs
If your AC is 15-20 years old, it's near the end of its lifespan. New systems are 30-50% more efficient.
Repair costs adding up? If repairs cost more than 50% of a new system, it's time to replace.
Older systems lose 5% efficiency per year. A new high-efficiency system could cut your bills by 30-50%.
Hot spots in your home? Your system may be undersized or failing. We'll properly size your new system.
Grinding, squealing, or banging sounds mean major components are failing. Time to upgrade.
New systems filter air better, removing allergens, dust, and bacteria for healthier living.
Complete HVAC installation solutions for residential and commercial properties
Complete home comfort systems from 2-ton to 5-ton units. Perfect sizing and professional installation guaranteed.
Light commercial and multi-unit systems. Rooftop units, split systems, and package units available.
Zone-specific cooling without ductwork. Perfect for additions, garages, and multi-zone comfort control.
All-in-one heating and cooling. Energy-efficient solution for year-round Texas comfort.
Complete tear-out and replacement. We'll remove your old system and install a new high-efficiency unit.
New duct design and installation. Proper airflow means better efficiency and comfort.
From free estimate to final inspection — here's what to expect
Our technician will assess your home, measure your space, evaluate your current system, and recommend the perfect size and efficiency rating for your needs. We'll provide upfront pricing with zero pressure.
Choose from top brands like Trane, Carrier, Lennox, and Rheem. We'll explain SEER ratings, warranty options, and financing plans to help you make the best decision for your budget.
Our licensed technicians will install your new system in 1 day (most residential installations). We'll remove your old equipment, install the new system, test all components, and clean up completely.
We'll walk you through your new system, show you how to use your thermostat, explain maintenance requirements, and ensure you're 100% satisfied before we leave.
Factory-trained and certified on all major HVAC manufacturers
Premium quality, 10-year warranty
Industry leader in efficiency
High SEER ratings, quiet operation
Reliable, cost-effective systems
Budget-friendly, solid warranty
Durable, long-lasting performance
We're a Trane Comfort Specialist — authorized dealers with advanced training on Trane systems.
Don't let budget hold you back from staying cool. We offer flexible financing options to fit any budget.
Spread the cost over 12-60 months with affordable monthly payments.
Get a decision in minutes, not days. Apply during your free estimate.
Ask about current rebates, manufacturer offers, and seasonal specials.
Fast, professional HVAC installation in over 30 cities across North Texas
Common questions about new AC system installation in Dallas-Fort Worth
The cost of a new AC installation in the DFW area typically ranges from:
Factors that affect cost include system size (tonnage), SEER rating, brand/warranty, ductwork modifications, and installation complexity.
We offer free in-home estimates with upfront pricing. Call (972) 466-1917 for your free quote today.
Most residential AC installations take 6-10 hours (1 full day) for our team to complete. This includes removing your old system, installing the new outdoor condenser and indoor air handler, connecting refrigerant lines, testing all components, and completing a final inspection.
Larger homes or complex installations (multiple zones, significant ductwork modifications) may take 1.5-2 days.
Next-day installation available! In many cases, we can install your new system the very next day after your free estimate.
Proper sizing is critical for efficiency and comfort. General guidelines for Texas homes:
Proper sizing also depends on insulation, windows, ceiling height, sun exposure, and occupancy. Our technicians perform a Manual J load calculation during your free estimate to determine the exact size your home needs.
Use the "$5,000 Rule": Multiply the repair cost × age of your system. If the result is over $5,000, replace it. If under $5,000, repair it.
Always replace if: Your system is 15+ years old, repairs cost more than 50% of a new system, major component failure (compressor, evaporator coil), R-22 refrigerant system (phased out), or frequent breakdowns (3+ repairs in 2 years).
Our technicians will always be honest about whether repair or replacement makes the most financial sense.
SEER (Seasonal Energy Efficiency Ratio) measures how efficiently your AC converts electricity into cooling. Higher SEER = lower energy bills.
Our recommendation: 16-18 SEER systems offer the best balance of upfront cost and long-term savings for most DFW homeowners.
Yes! We offer flexible financing options including 0% APR for 12-24 months (with approved credit), low monthly payments for 36-60 month terms, fast approval in minutes, and no prepayment penalty.
Example: $7,500 system financed for 60 months = ~$140/month. Many homeowners find their monthly financing payment is less than their energy savings!
New AC systems come with two types of warranties:
Manufacturer's Parts Warranty: 5-10 years on parts (varies by brand), up to 12 years on premium models. Covers compressor, coils, and major components.
Labor Warranty (from LEX): 1-2 years of labor coverage on our installation work.
Cool Club members get extended coverage! Learn more about Cool Club →
Yes! In fact, winter is the BEST time to install a new AC system. Benefits include better availability, flexible scheduling, manufacturer rebates, and being ready before summer heat arrives.
We install AC systems year-round in the DFW area. Don't wait until your old system fails in July — plan ahead and save!
Licensed & Certified: TACLA38788C (HVAC) • M18088 (Plumbing) • TECL23192 (Electrical)
Get your free, no-pressure estimate today. Next-day installation available!
15-25 Min Response in Plano • Flexible Financing Available
