Services

Comprehensive HVAC Services in Sugar Land, TX

At Critical Air, we’ve spent more than 20 years keeping families across Sugar Land and Fort Bend County comfortable year-round. From urgent same-day AC repair to full system replacements, we’re the local residential HVAC company you can trust for speed, expertise, and affordability. Our services cover every part of your home’s heating and cooling system—diagnostics, tune-ups, installations, ductwork, and more. Whether your AC isn’t cooling, your heater isn’t working, or you’re considering a major upgrade, our licensed team has the knowledge and tools to get the job done right. When you call before 7 PM, you’ll always receive same-day service—because your comfort can’t wait.

Fast and reliable AC repair in Sugar Land, TX from Critical Air HVAC experts

AC Repair

Our most requested service and entry point for new customers. Fast, same-day repairs restore your cooling and keep your home comfortable.

  • Same-day service before 7 PM
  • $89 consultation applied to repair
  • Emergency service (until 10 PM)
  • Reliable fixes for all brands

Heating Repair

When cold fronts hit Sugar Land, you need dependable heat. We quickly diagnose and repair furnaces and heating systems to restore warmth.

  • Furnace repair
  • Heat pump repair
  • Same-day service available
  • Service all makes & models
Professional heating repair services in Sugar Land by Critical Air technicians
Seasonal HVAC tune-ups and maintenance in Sugar Land, Texas by Critical Air

HVAC Tune-Ups

Prevent breakdowns with scheduled maintenance. A tune-up extends your system’s life and improves efficiency.

  • Seasonal checks
  • Energy savings
  • Prevent costly breakdowns
  • Extend system life

System Replacement

Ready for a major upgrade? Our high-value service—AC & heating system replacement—delivers comfort and efficiency for years to come.

  • Trane & Goodman installs
  • Energy-efficient options
  • Lower utility bills
  • Financing available (Wells Fargo)
Energy-efficient HVAC system replacement and installation in Sugar Land by Critical Air
Custom HVAC ductwork installation and design in Sugar Land homes by Critical Air

Ductwork Installation

Proper ductwork is essential for airflow and comfort. We design and install systems built for efficiency.

  • Custom ductwork design
  • New installations
  • Improved airflow
  • Reduced energy waste

Allergy Filters

Breathe easier with professional-grade filters that reduce dust, allergens, and pollutants in your home.

  • Advanced filtration options
  • Cleaner air quality
  • Help family health
  • Easy replacements
allergy-filter-installation-sugar-land-critical-air
Fast AC repair service in Sugar Land from Critical Air
AC & Cooling

From emergency AC service available until 10 PM to full diagnostics, refrigerant recharges, and thermostat installation, Critical Air has you covered for every cooling need. We also specialize in ductless mini-split systems, giving Sugar Land homeowners efficient, customizable comfort solutions.

Reliable heating repair services in Sugar Land by Critical Air
Heating Services

Our heating services include complete furnace and heat pump installations, as well as seasonal tune-ups to prepare your system for fall and winter. Whether you need a new unit or just preventive care, we’ll keep your home warm and dependable.

Allergy filter installation to improve indoor air quality in Sugar Land, Tx
Indoor Air Quality

Critical Air improves indoor air quality with purification systems, humidity control, and ventilation upgrades designed for Houston’s unique climate. These solutions reduce allergens, balance airflow, and make your home healthier and more comfortable.

Seasonal HVAC tune-up service by Critical Air in Sugar Land
Ductwork & Efficiency

We enhance home efficiency with duct sealing, duct cleaning, airflow balancing, and zoning systems for split comfort control. From small upgrades to big-ticket solutions, our ductwork services improve both comfort and energy savings.

Preventive HVAC maintenance services in Sugar Land by Critical Air
Maintenance & Prevention

Our preventive care includes bi-annual checkups, seasonal inspections, and performance testing to keep your system running at peak efficiency. These services help catch problems early, save money, and extend the life of your equipment.

Critical Air provides HVAC warranty offerings for customers in Sugar Land
Warranty Offerings

Critical Air also provides warranty service calls, second opinions, and a filter replacement program for ongoing system care. With clear pricing and trusted service, you can count on us for every situation.

Frequently Asked Questions

Our consultation covers a full system diagnostic and is applied directly to your repair—so you only pay once.

Yes. We specialize in complete AC and heating system replacements, with expert installation of Trane and Goodman equipment across Fort Bend County.

Yes. We partner with Wells Fargo to offer flexible financing options, so you can spread the cost of a new system over time.

For urgent AC and heating repairs, yes—if you call before 7 PM. For full system installs, we schedule quickly and complete projects on time.

Yes. We service all major brands for repair and maintenance, and we install industry-trusted Trane and Goodman systems.

We do not offer formal contracts, but we recommend bi-annual checks to keep your system running efficiently.