Based in Plano • 4.8 Rating • 2,000+ Reviews

Lewisville's Trusted HVAC, Plumbing & Electrical Experts

Full-service home comfort from our Plano headquarters. Fast response times and reliable service for Lewisville homeowners.

20-25 Min Response
Upfront Pricing
Licensed & Insured
24/7 Emergency Service
LEX Air Conditioning serving Lewisville, TX

Licensed & Insured Same-Day Service Satisfaction Guaranteed Financing Available

Lewisville's Home Service Company Since 2004

LEX Air Conditioning, Heating, Plumbing & Electrical has proudly served Lewisville homeowners for over 22 years. Our Plano-based team delivers fast response times, upfront pricing, and quality workmanship on every job. From Old Town Lewisville to Castle Hills, from Garden Ridge to Timber Creek, we've built a reputation for reliable service and honest communication.

Lewisville's unique location along Lake Lewisville brings distinct challenges for home systems. Our technicians understand how the lakeside humidity affects HVAC efficiency, how the area's older neighborhoods require thoughtful electrical upgrades, and how seasonal temperature swings demand reliable heating and cooling solutions. We're not just service providers—we're your neighbors, committed to keeping Lewisville homes comfortable year-round.

Fast Response

20-25 minute typical response time to Lewisville.

Family-Owned

Three generations serving DFW since 2004.

Licensed & Insured

Fully licensed, bonded, and background-checked technicians.

2,000+ Reviews

4.8-star average across Google, Facebook, and Yelp.

Why Lewisville Homeowners Choose LEX

When your AC fails during a July heatwave or your water heater starts leaking on a Sunday morning, you need a company that responds quickly and fixes it right the first time. That's the LEX promise. Our proximity to Lewisville means we can reach most homes in 20-25 minutes, and our fully-stocked service vehicles mean we complete most repairs on the first visit.

We understand that home service calls can be stressful. That's why we emphasize clear communication and upfront pricing. Before any work begins, you'll receive a detailed estimate with no hidden fees. Our technicians take time to explain your options, answer questions, and ensure you're completely comfortable with the recommended solution. Whether it's a simple repair or a major system replacement, you'll know exactly what to expect.

Our commitment extends beyond the initial service call. We stand behind our work with comprehensive warranties and offer maintenance plans that keep your systems running efficiently. Many Lewisville families have trusted LEX for decades, calling us for everything from annual AC tune-ups to whole-home generator installations. That loyalty isn't accidental—it's earned through consistent quality and genuine care for our customers.

Complete Home Services in Lewisville

One call for all your HVAC, plumbing, and electrical needs.

Air Conditioning & Heating

North Texas summers are brutal, and Lewisville is no exception. When temperatures soar above 100°F, your air conditioning isn't a luxury—it's essential. Our HVAC technicians specialize in both emergency repairs and planned installations, ensuring your family stays comfortable no matter what Mother Nature throws at you.

We service all major brands including Trane, Carrier, Lennox, Rheem, and Goodman. From Castle Hills' newer homes with modern high-efficiency systems to Old Town Lewisville's charming older properties with legacy equipment, we have the expertise to diagnose and repair any issue. Our technicians carry extensive parts inventory, which means most repairs are completed the same day.

AC Repair & Installation

Same-day AC repairs and high-efficiency system installations. We diagnose compressor failures, refrigerant leaks, electrical issues, and airflow problems quickly and accurately.

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Heating Services

Furnace repair, heat pump service, and heating installations. Don't wait until the first freeze—schedule your heating inspection today to ensure reliable warmth all winter.

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Maintenance Plans

Annual tune-ups to prevent breakdowns and extend system life. Our maintenance members receive priority scheduling, exclusive discounts, and peace of mind knowing their systems are professionally maintained.

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Regular HVAC maintenance is particularly important in Lewisville due to the area's humidity and proximity to the lake. Moisture in the air can accelerate coil corrosion and promote mold growth in ductwork. Our comprehensive tune-ups include coil cleaning, condensate drain flushing, and humidity level checks to protect your investment and maintain healthy indoor air quality.

Plumbing Services

From minor drips to major pipe bursts, LEX handles all your plumbing needs with professionalism and expertise. Lewisville's mix of construction eras means we regularly work with everything from modern PEX plumbing to older galvanized pipes. Our plumbers bring the diagnostic tools and replacement parts needed to fix any issue.

We understand that plumbing emergencies don't wait for business hours. That's why we offer 24/7 emergency service for urgent situations like slab leaks, sewer backups, and water heater failures. Our emergency response team arrives quickly, assesses the situation, and implements solutions to minimize damage and restore function.

Water Heaters

Tank and tankless water heater repair and installation. Whether you need a traditional 50-gallon tank or want to upgrade to an endless hot water tankless system, we'll help you choose the right solution.

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Drain Cleaning

Professional drain and sewer line cleaning services. We use camera inspections to identify blockages and hydro-jetting equipment to clear even the toughest clogs without damaging your pipes.

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Leak Detection & Repair

Advanced slab leak detection and pipe repair. Our electronic leak detection equipment pinpoints hidden leaks without unnecessary demolition, saving you time and money.

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Many Lewisville homes sit on expansive clay soil that shifts with moisture changes, potentially causing slab leaks and foundation movement. Our plumbers are experienced in detecting and repairing these issues, using non-invasive techniques whenever possible. We also offer whole-home repiping for older homes where galvanized pipes have reached the end of their useful life.

Electrical Services

Modern homes demand more electrical capacity than ever before. Between EV chargers, smart home systems, upgraded HVAC equipment, and everyday appliances, many Lewisville homes are pushing the limits of their electrical panels. LEX electricians specialize in panel upgrades, circuit additions, and whole-home electrical solutions that meet current code requirements and support your lifestyle.

Safety is our top priority with every electrical job. Our licensed electricians conduct thorough inspections, identify potential hazards, and recommend solutions that protect your family and property. From simple outlet replacements to complex panel upgrades and generator installations, we handle every project with meticulous attention to detail.

Panel Upgrades

Upgrade to 200-amp or 400-amp service for modern power needs. If your breakers trip frequently or you're planning major renovations, a panel upgrade ensures safe, reliable power distribution.

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EV Charger Installation

Tesla Wall Connector and universal EV charger installation. We handle everything from circuit installation to final hookup, ensuring fast, safe charging for your electric vehicle.

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Generator Installation

Whole-home generators for backup power during outages. After Texas's winter storm experiences, more Lewisville homeowners are choosing the peace of mind that comes with automatic backup power.

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Generator installations have become increasingly popular in Lewisville, especially in neighborhoods like Valley Ridge and Fox Hollow where power reliability is essential for families working from home or with medical needs. Our electricians are factory-trained on Generac, Kohler, and other leading generator brands, ensuring proper installation and seamless integration with your home's electrical system.

"We've used LEX for years at our Castle Hills home—from AC tune-ups to a complete panel upgrade for our EV charger. They're always on time, explain everything clearly, and their pricing is fair. When our AC went out during that July heatwave, they had us back up and running in under two hours. That's the kind of service that keeps us calling them first."
— Jennifer & Mike Torres, Castle Hills

Why Lewisville Trusts LEX

LEX Certifications: Google 5-Star Reviews, BBB A+ Rating, Google Guaranteed, NATE Certified, Trane Comfort Specialist

Credentials That Matter

When you invite a service company into your home, credentials matter. LEX maintains the highest industry certifications and continuously invests in technician training. Our team includes NATE-certified HVAC technicians, licensed master plumbers, and licensed electricians—all background-checked and drug-tested for your safety.

We're an authorized Trane Comfort Specialist, which means we meet Trane's strict standards for technical excellence, customer service, and business integrity. Our A+ BBB rating reflects our commitment to resolving any customer concerns quickly and fairly. And our Google Guaranteed status provides additional protection, backing our work with Google's confidence.

But certifications only tell part of the story. What really matters is how we treat people. We answer our phones, show up when promised, respect your home, and stand behind our work. That's why so many Lewisville families have our number saved—they know LEX delivers reliability when it matters most.

Lewisville Neighborhoods We Serve

Our technicians work throughout Lewisville every day, serving families in every corner of this vibrant lakeside community.

Old Town Lewisville Castle Hills Garden Ridge Timber Creek Valley Ridge Highland Village Valley View Fox Hollow

ZIP Codes: 75028, 75029, 75056, 75057, 75067, 75077

Local Expertise Across Lewisville

Each Lewisville neighborhood has its own character and unique service needs. Old Town Lewisville's historic homes often require specialized electrical work and plumbing updates that respect the original architecture while meeting modern code requirements. Castle Hills and Garden Ridge feature newer construction with advanced HVAC systems that benefit from regular professional maintenance. Timber Creek and Valley Ridge neighborhoods include a mix of home ages, each with distinct service considerations.

Our technicians know these neighborhoods well. We understand which subdivisions were built during the era of aluminum wiring (now a potential safety concern), which areas have clay soil prone to slab leaks, and which neighborhoods typically have panel capacity for EV charger installations. This local knowledge allows us to diagnose issues faster and recommend solutions that fit your specific situation.

Frequently Asked Questions

How fast can you get to my Lewisville home?

Most service calls in Lewisville receive a 20-25 minute response time. Our Plano headquarters location means we can reach Castle Hills, Old Town, Garden Ridge, and other Lewisville neighborhoods very quickly. For emergencies, we're available 24/7 with priority dispatch to address urgent issues like AC failures, water leaks, or electrical hazards.

Do you handle HVAC, plumbing, AND electrical?

Yes! LEX is a full-service home comfort company. One call handles your AC, heating, water heater, drains, electrical panel, EV charger, and more. No need to juggle multiple contractors or coordinate separate service appointments. Our technicians are cross-trained to identify issues across all systems, ensuring comprehensive solutions for your home.

Do you offer same-day service in Lewisville?

Absolutely. Same-day service is available for most HVAC, plumbing, and electrical needs. When you call in the morning, we typically schedule appointments for that same day. We also offer 24/7 emergency service for urgent issues that can't wait—no extra weekend or holiday charges for emergencies.

What does an HVAC tune-up include?

Our comprehensive tune-up includes coil cleaning, refrigerant level check, electrical connection inspection, thermostat calibration, condensate drain flushing, air filter inspection, blower motor evaluation, and a full system performance test. We provide a detailed report of our findings and recommendations. Regular maintenance prevents approximately 95% of breakdowns and can extend your system's life by 5-10 years.

Do you offer financing?

Yes, we offer flexible financing options for larger projects like HVAC replacements, water heaters, and electrical panel upgrades. We work with multiple lenders to provide competitive rates, including 0% interest options for qualified buyers. Ask your technician or our office staff about current financing promotions and approval processes.

Are your technicians licensed and background-checked?

Absolutely. All LEX technicians are fully licensed in their respective trades (HVAC, plumbing, or electrical), background-checked, drug-tested, and covered by comprehensive insurance. We take safety seriously, both for our customers and our team. Our technicians also participate in ongoing training to stay current with the latest techniques, equipment, and code requirements.

What brands do you service and install?

We service all major brands of HVAC equipment, water heaters, and electrical systems. For installations, we're authorized dealers for top brands including Trane (our specialty), Carrier, Lennox, Rheem, Bradford White, Generac, and Tesla. As a Trane Comfort Specialist, we offer exclusive warranties and factory-direct support on Trane equipment installations.

Do you provide free estimates?

Yes, we provide free estimates for system replacements and major projects like panel upgrades, generator installations, and whole-home repiping. For diagnostic service calls, we charge a trip fee that's waived if you proceed with recommended repairs. All pricing is provided upfront before any work begins—no hidden fees or surprises.

Ready to Experience the LEX Difference?

Lewisville homeowners trust LEX for all their home service needs. Call today or schedule online for fast, reliable service backed by 22 years of excellence.

Proudly serving Lewisville, TX and the DFW Metroplex