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

Rockwall's Trusted HVAC, Plumbing & Electrical Experts

Full-service home comfort from our Plano headquarters. Fast response times and reliable service for Rockwall homeowners along Lake Ray Hubbard.

30-35 Min Response
Upfront Pricing
Licensed & Insured
24/7 Emergency Service
LEX Air Conditioning serving Rockwall, TX
The Gold Standard in Service
Licensed & Insured
Financing Available
2,000+ Google Reviews

Rockwall's Home Service Company Since 2004

LEX Air Conditioning, Heating, Plumbing & Electrical has proudly served Rockwall homeowners for over 22 years. Our Plano-based team delivers fast response times, upfront pricing, and quality workmanship on every job—whether you're in a lakefront home along Lake Ray Hubbard or an established neighborhood near downtown Rockwall.

Fast Response

30-35 min typical response time to Rockwall.

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.

Serving Rockwall's Unique Home Service Needs

Rockwall is one of the fastest-growing communities in the Dallas-Fort Worth metroplex, with a population that has grown from under 18,000 in 2000 to over 52,000 today. As the county seat of Texas's smallest county by land area, Rockwall offers a unique blend of small-town charm and modern amenities—all situated on the scenic eastern shore of Lake Ray Hubbard.

This lakeside location creates specific challenges for homeowners. The humidity from the lake can stress HVAC systems year-round, requiring more frequent maintenance and creating higher cooling demands in summer. Many waterfront properties have larger homes with complex multi-zone systems that need expert care. Older homes in established neighborhoods near downtown may have aging electrical panels that need upgrades, while newer developments around State Highway 205 often feature modern systems that benefit from preventive maintenance plans.

LEX Air Conditioning understands these local conditions. Our technicians regularly service homes throughout Rockwall—from historic downtown properties to luxury lakefront estates in communities like Chandler's Landing. We've been working in Rockwall since 2004, which means we understand not just HVAC, plumbing, and electrical systems, but also the unique architecture and construction methods used in different Rockwall neighborhoods. Whether you're in a 1970s-era home near downtown that needs a panel upgrade, a 2000s-era property in Williamsburg with a complex zoned HVAC system, or a brand-new lakefront custom home with smart home integration, we have the expertise to handle it. We know that Rockwall homeowners expect premium service, and we deliver the white-glove experience that has earned us over 2,000 five-star reviews across the DFW area.

Why Rockwall Homes Need Expert Care

  • Lake humidity: Creates extra HVAC workload and potential moisture issues
  • Premium homes: Complex systems with multi-zone controls and high-efficiency equipment
  • Rapid growth: Mix of new construction and established homes with varying needs
  • Waterfront properties: Special considerations for lakefront mechanical systems
  • Texas heat: Summer temps regularly exceed 100°F, stressing cooling systems

The LEX Difference

  • Licensed & certified: TACLA38788C (HVAC), M18088 (Plumbing), TECL23192 (Electrical)
  • Fast response: 30-35 minute typical arrival from our Plano headquarters
  • Upfront pricing: You approve the price before we start work—no surprises
  • Background-checked: Every technician is vetted for your peace of mind
  • Same-day service: Most repairs completed the same day you call

Complete Home Services in Rockwall

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

Air Conditioning & Heating Services

When your AC fails during a Texas summer or your heater goes out on a cold winter night, you need a team that responds fast and fixes it right. LEX has been providing AC repair in Rockwall for over two decades, and we know these systems inside and out.

AC Repair & Replacement

Same-day air conditioning repairs for all brands. When repair costs exceed 50% of replacement value, we'll recommend a high-efficiency system upgrade. Emergency service available 24/7.

AC Repair
AC Installation

Heating System Service

Furnace repair, heat pump service, and heating system installations. We service gas furnaces, electric heat pumps, and dual-fuel systems common in Rockwall homes.

Learn More

Preventive Maintenance

Annual tune-ups prevent 95% of HVAC breakdowns. Our maintenance plans include priority scheduling, coil cleaning, refrigerant checks, and comprehensive system testing.

Learn More

Rockwall HVAC Services Include:

  • Central AC repair & installation
  • High-efficiency system upgrades
  • Gas furnace service
  • Heat pump repair & replacement
  • Ductwork inspection & sealing
  • Indoor air quality solutions
  • Smart thermostat installation
  • Refrigerant leak detection
  • Multi-zone system service
  • Emergency HVAC repairs
  • Seasonal tune-ups (spring/fall)
  • HVAC maintenance agreements

Professional Plumbing Services

From minor drips to major slab leaks, LEX handles all your plumbing needs. Our licensed plumbers serve Rockwall with the same commitment to quality and customer service that has made us the DFW area's trusted home service company.

Water Heater Services

Tank and tankless water heater repair, replacement, and installation. We service all major brands and can help you choose between traditional tanks and modern tankless systems.

Learn More

Drain & Sewer Cleaning

Professional drain cleaning using video inspection and hydro-jetting technology. We clear clogs in sinks, tubs, toilets, and main sewer lines—guaranteed.

Learn More

Leak Detection & Repair

Advanced slab leak detection and pipe repair services. We use electronic listening devices and thermal imaging to find hidden leaks before they cause major damage.

Learn More

Full Plumbing Services for Rockwall Homes:

  • Water heater replacement
  • Tankless water heater installation
  • Slab leak detection & repair
  • Pipe repair & repiping
  • Drain cleaning & hydro-jetting
  • Video camera sewer inspection
  • Toilet repair & replacement
  • Faucet & fixture installation
  • Garbage disposal service
  • Water pressure issues
  • Emergency plumbing repairs
  • Backflow prevention testing

Licensed Electrical Services

Rockwall's growing population and modern homes demand reliable electrical service. Whether you're upgrading an older panel, installing an EV charger for your Tesla, or adding a whole-home generator for storm protection, LEX electricians deliver safe, code-compliant work every time.

Electrical Panel Upgrades

Upgrade to 200-amp or 400-amp service to support modern appliances, EV chargers, and smart home technology. Essential for older Rockwall homes and growing families.

Learn More

EV Charger Installation

Tesla Wall Connector and universal Level 2 EV charger installation. We handle everything: panel capacity evaluation, permits, installation, and final inspection.

Learn More

Whole-Home Generators

Automatic standby generators keep your Rockwall home powered during severe weather. Perfect for lakefront properties and homes with critical medical equipment.

Learn More

Complete Electrical Services:

  • Panel upgrades (200A/400A)
  • EV charging station installation
  • Whole-home generator installation
  • Ceiling fan installation
  • Lighting upgrades & LED retrofit
  • Outlet & switch replacement
  • GFCI/AFCI installation
  • Code violation corrections
  • Emergency electrical repairs
  • Smoke detector installation
  • Surge protection systems
  • Home safety inspections
"Our AC went out on the hottest day of the year—over 105 degrees! LEX had someone here in 35 minutes, diagnosed the issue, and had us cooling down within two hours. The technician was professional, explained everything clearly, and the price was exactly what they quoted. As Rockwall residents near the lake, we've used several companies over the years. LEX is the only one we trust now."
— Jennifer M., Chandler's Landing, Rockwall

Why Rockwall Trusts LEX

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

Rockwall Neighborhoods We Serve

Our technicians work throughout Rockwall every day, from lakefront estates to downtown historic homes.

Chandler's Landing Shores Downtown Rockwall Buffalo Creek Williamsburg Summer Lee Dalrock Estates Heath (border area) Oaks at Rockwall Lake Ray Hubbard Waterfront

ZIP Codes: 75032, 75087

Serving All of Rockwall County

LEX services the entire Rockwall area, including homes along Lake Ray Hubbard, properties near downtown Rockwall's historic square, and neighborhoods throughout this rapidly growing community. We're familiar with the unique needs of lakefront properties, established homes built in the 1970s-1980s, and newer luxury developments. Our Plano headquarters is just 20 miles west on Interstate 30, giving us a typical response time of 30-35 minutes to anywhere in Rockwall.

Frequently Asked Questions

How fast can you get to my Rockwall home?

Most service calls in Rockwall receive a 30-35 minute response time from our Plano headquarters. We take Interstate 30 east, then State Highway 205 or Highway 66 into Rockwall. For emergencies, we're available 24/7 with priority dispatch, and we'll keep you updated on our exact arrival time.

Do you handle HVAC, plumbing, AND electrical?

Yes! LEX is a full-service home comfort company with licensed technicians in all three trades. One call handles your AC, heating, water heater, drains, electrical panel, EV charger, and more. No need to juggle multiple contractors or wait for different companies. We're licensed TACLA38788C (HVAC), M18088 (Plumbing), and TECL23192 (Electrical).

Do you offer same-day service in Rockwall?

Absolutely. Same-day service is available for most HVAC, plumbing, and electrical needs. We also offer 24/7 emergency service for urgent issues like AC failures, water leaks, and electrical problems. Our goal is to diagnose and repair most issues on the first visit.

What makes LEX different from other companies serving Rockwall?

We've been serving Rockwall since 2004—over 22 years of local experience. We're family-owned (three generations), fully licensed in all trades, and have earned over 2,000 five-star reviews. We offer upfront pricing (you approve before we work), background-checked technicians, and the "Gold Standard of White Glove Service." Plus, we handle HVAC, plumbing, AND electrical—no need for multiple contractors.

Do lakefront homes need special HVAC maintenance?

Yes. Homes near Lake Ray Hubbard deal with higher humidity levels, which makes air conditioning systems work harder and can lead to moisture-related issues. We recommend twice-yearly maintenance (spring and fall) for lakefront properties to keep systems running efficiently, check for corrosion, and ensure proper drainage. Many of our Chandler's Landing and Shores customers are on our preventive maintenance plans.

What does an HVAC tune-up include?

Our comprehensive tune-up includes coil cleaning (indoor and outdoor), refrigerant level check and adjustment, electrical connection inspection, thermostat calibration, condensate drain cleaning, blower motor inspection, and a full system performance evaluation. Regular maintenance prevents 95% of breakdowns and can extend your system's lifespan by 5-10 years. For Rockwall homes, we pay special attention to humidity control and lake-area environmental factors.

Do you offer financing for larger projects?

Yes, we offer flexible financing options for larger projects like HVAC replacements, water heaters, electrical panel upgrades, and generator installations. We have options including 0% interest financing for qualified buyers. Ask your technician about current promotions—we often run special financing offers during peak seasons.

Are your technicians background-checked?

Yes. Every LEX technician undergoes a thorough background check before joining our team. We know we're entering your home—often when you're at your most vulnerable (like during an AC failure in summer). Your safety and peace of mind are priorities. All our techs are also licensed, insured, and trained on our customer service standards.

Ready to Experience the LEX Difference?

Rockwall homeowners trust LEX for all their home service needs. Call today or schedule online.

Proudly serving Rockwall, TX and the DFW Metroplex since 2004