Why Spring Preparation Matters in Texas
Texas air conditioners work harder and longer than almost anywhere else in the country. While a northern AC might run 3-4 months per year, Texas systems run 6-8 months continuously—sometimes longer. This extended runtime means more wear, more potential for problems, and more importance placed on preventative maintenance.
The consequences of skipping spring preparation are severe: mid-summer breakdowns in 100°F+ heat, wait times of 2-7 days for repairs, emergency pricing that's 50-100% higher than scheduled service, and potential health risks for vulnerable family members.
Texas Summer Reality Check
When to Schedule: Month-by-Month Guide
Timing matters for both availability and pricing. Here's your Texas scheduling calendar.
January
Early BirdAvailability: Excellent
Pricing: Best deals available
Weather: Too cold to test (usually)
Schedule appointment for February-March service
February
IdealAvailability: Excellent
Pricing: Normal rates
Weather: Variable, some days warm enough to test
Best month—beat the spring rush
March
IdealAvailability: Very Good
Pricing: Normal rates
Weather: 60-80°F typical, perfect for testing
Excellent month—AC testing conditions are good
April
GoodAvailability: Good
Pricing: Normal rates
Weather: 70-85°F, occasional heat waves
Still good availability, rush beginning
May
Last ChanceAvailability: Limited
Pricing: Rates may increase
Weather: 80-95°F, summer starting
Final window before summer rush
June+
Emergency OnlyAvailability: Very Limited
Pricing: Emergency rates common
Weather: 95-105°F typical
Wait times of 2-7 days, higher prices
| Month | Priority | Availability | Pricing | Recommendation |
|---|---|---|---|---|
| January | Early Bird | Excellent | Best deals available | Schedule appointment for February-March service |
| February | Ideal | Excellent | Normal rates | Best month—beat the spring rush |
| March | Ideal | Very Good | Normal rates | Excellent month—AC testing conditions are good |
| April | Good | Good | Normal rates | Still good availability, rush beginning |
| May | Last Chance | Limited | Rates may increase | Final window before summer rush |
| June+ | Emergency Only | Very Limited | Emergency rates common | Wait times of 2-7 days, higher prices |
Complete Homeowner DIY Checklist
These tasks don't require professional tools and can save you money while keeping your system running efficiently.
Replace Air Filter
Critical 5 minutes $5-$25Why: Start summer with maximum airflow capacity
How: Turn off system, locate filter slot (usually at return vent or air handler), note size on old filter frame, slide out old filter, insert new filter with airflow arrow pointing toward unit
Texas Tip: Use MERV 8-11 for Texas—higher ratings restrict airflow in humid conditions
Test AC Operation
Critical 15 minutes FreeWhy: Find problems before you desperately need cooling
How: Set thermostat to cooling mode, lower temperature 5°F below current room temp, listen for compressor startup (outdoor unit), verify cold air at vents within 5 minutes
Texas Tip: Test on a day above 60°F—most systems won't run in cool mode if it's too cold outside
Clear Outdoor Unit
Critical 30-45 minutes FreeWhy: Blocked airflow increases energy bills 5-25%
How: Turn off system at thermostat, remove debris from top and sides, trim vegetation back 2 feet on all sides, gently rinse coils with garden hose from inside out
Texas Tip: Oak pollen season (February-April) clogs coils fast—clean monthly during spring
Clean/Replace Thermostat Batteries
High 5 minutes $5-$10Why: Dead batteries = no AC when you need it most
How: Remove thermostat cover, replace AA or AAA batteries, verify display works, confirm settings are correct for cooling season
Texas Tip: Heat damage is common—if display is faded or unresponsive, thermostat may need replacement
Clean Supply Vents
Medium 30 minutes FreeWhy: Dusty vents restrict airflow and spread allergens
How: Remove vent covers, vacuum dust from covers and duct opening, wash covers with mild soap if needed, ensure dampers are open
Texas Tip: Check for mold around vents—high humidity + closed house all winter can cause growth
Inspect and Clean Drain Line
Critical 15 minutes $3Why: Clogged drains cause water damage and system shutdowns
How: Locate drain line (PVC pipe near indoor unit), pour 1 cup white vinegar down line, wait 30 minutes, flush with water, verify water drains freely outside
Texas Tip: Texas humidity produces 5-20 gallons of condensate daily—drain clogs are the #1 summer service call
Check Refrigerant Line Insulation
Medium 15 minutes $10-$20 for insulationWhy: Damaged insulation reduces efficiency and causes condensation
How: Locate copper lines running from outdoor to indoor unit, inspect foam insulation for cracks, gaps, or deterioration, replace damaged sections with foam pipe insulation
Texas Tip: UV damage is common in Texas sun—insulation often deteriorates within 5-7 years
Test Carbon Monoxide Detectors
High 10 minutes Free (batteries $5)Why: If you have gas appliances, CO risk increases with closed windows
How: Press test button on each detector, replace batteries if needed, verify expiration date (replace after 5-7 years)
Texas Tip: Homes with gas furnaces should test CO detectors before switching to AC-only operation
What Professionals Check During a Tune-Up
A proper tune-up takes 45-90 minutes and includes these critical checks that require professional tools and training.
Clean Evaporator Coil
Critical for efficiencyIndoor coil collects dust, mold, and debris that reduces heat transfer
If skipped: 15-30% efficiency loss, frozen coils, compressor damage
Clean Condenser Coil
Critical for efficiencyOutdoor coil needs chemical cleaning beyond garden hose rinsing
If skipped: High head pressure, compressor overheating, premature failure
Check Refrigerant Charge
Critical for coolingMeasure pressures and temperatures to verify proper charge level
If skipped: Poor cooling, frozen coils, compressor damage, high bills
Test Electrical Connections
Safety and reliabilityTighten terminals, measure amp draw, check for damaged wires
If skipped: Fire hazard, intermittent failures, component damage
Inspect Capacitor
ReliabilityMeasure capacitance and check for swelling or leaking
If skipped: Hard starts, compressor won't run, motor burnout
Check Contactor
ReliabilityInspect contact surfaces for pitting, arcing, or wear
If skipped: System won't start, electrical arcing, fire risk
Lubricate Motors
LongevityOil port lubrication on older motors (many newer motors are sealed)
If skipped: Bearing failure, motor burnout, expensive repairs
Clear Drain Line Professionally
Prevents water damageVacuum line, treat with biocide, verify float switch operation
If skipped: Water damage, mold growth, system shutdowns
Verify Thermostat Calibration
Comfort and efficiencyCompare thermostat reading to actual temperature, adjust if needed
If skipped: Incorrect cycling, uncomfortable temperatures
Measure Temperature Differential
Performance verificationSupply air should be 15-20°F cooler than return air
If skipped: Undiagnosed problems that worsen over summer
Inspect Ductwork
EfficiencyCheck accessible ducts for leaks, disconnections, and insulation damage
If skipped: 20-30% cooling loss in unconditioned spaces
Test Safety Controls
SafetyVerify high-pressure switch, low-pressure switch, and safety limits
If skipped: Equipment damage, safety hazards
Texas-Specific Spring Challenges
Texas spring brings unique challenges that affect your HVAC system.
Oak Pollen Season
February-AprilImpact: Coils clog 2-3x faster, filters need more frequent changes
Solution: Clean outdoor coils monthly, change filters every 30 days during pollen season
Cedar Fever Aftermath
December-February residueImpact: Allergens trapped in system over winter
Solution: Have indoor coil cleaned, consider UV light installation
Humidity Returns
March-AprilImpact: Mold growth risk increases, drain line clogs more likely
Solution: Clean drain line before humidity season, verify float switch works
Sudden Temperature Swings
March-AprilImpact: May need heating and cooling same week
Solution: Verify system switches between modes properly
Outdoor Unit Damage
Post-winter inspectionImpact: Hail, freezes, and debris accumulation over winter
Solution: Visual inspection of fins, refrigerant lines, and electrical
Cost: Maintenance vs. Emergency Repairs
The math is clear: preventative maintenance costs a fraction of emergency repairs.
Professional Tune-Up
Dirty Coil (Not Cleaned)
Capacitor Failure
Refrigerant Leak
Drain Line Clog
Compressor Failure
| Scenario | Preventative | Emergency | Savings |
|---|---|---|---|
| Professional Tune-Up | $89-$150 | N/A | Baseline investment |
| Dirty Coil (Not Cleaned) | Included in tune-up | $150-$400 emergency cleaning + efficiency loss | $200-$500/year |
| Capacitor Failure | $15-$25 if caught early | $150-$300 emergency call + part | $125-$275 |
| Refrigerant Leak | Caught early, plan repair | $500-$1,500 emergency + recharge | Avoided system damage |
| Drain Line Clog | Included in tune-up | $150-$250 + water damage | $150-$5,000+ |
| Compressor Failure | Prevent with proper maintenance | $1,500-$3,000 or system replacement | Years of system life |
First-Use Test Procedure
Before calling for service, test your system using this step-by-step procedure.
Check thermostat batteries
Replace if old or if display is dim
Set to cooling mode
Switch from heat or auto to cool
Set temperature 5°F below room temp
This should trigger system to start
Warning: Don't test if outdoor temp is below 60°F
Listen for outdoor unit startup
Should hear compressor and fan within 30 seconds
Warning: No startup = potential problem
Feel air at supply vents
Air should be noticeably cool within 5 minutes
Warning: Warm air only = refrigerant or compressor issue
Let system run 15-20 minutes
Check for unusual noises, smells, or water leaks
Warning: Burning smell = turn off and call professional
Check outdoor unit
Fan spinning, no unusual noises, no ice formation
Warning: Ice or frost = low refrigerant or airflow problem
Verify drain line
Water should drip from condensate drain outside
Warning: No drip after 20 minutes = potential clog
Common Problems Found During Spring Inspections
Here's what technicians commonly discover and what repairs typically cost.
Dirty Evaporator Coil
45% of systemsSymptoms: Reduced airflow, frozen coil, poor cooling
Cause: Normal dust accumulation, especially with pets or poor filtration
Fix: Professional chemical cleaning ($100-$200)
Low Refrigerant
15-20% of systemsSymptoms: Warm air, ice on coils, long run times
Cause: Leaks at fittings, coils, or service valves
Fix: Leak repair ($200-$800) + recharge ($150-$400)
Weak Capacitor
20% of systems over 5 yearsSymptoms: Slow startup, humming, intermittent operation
Cause: Heat degradation (Texas heat accelerates failure)
Fix: Replacement ($75-$200 including labor)
Dirty Condenser Coil
35% of systemsSymptoms: High energy bills, compressor cycling off, reduced cooling
Cause: Pollen, cottonwood seeds, grass clippings
Fix: Professional cleaning ($75-$150)
Clogged Drain Line
25% of systemsSymptoms: Water around indoor unit, musty smell, humidity issues
Cause: Algae and biofilm buildup in high-humidity environment
Fix: Clearing and treatment ($75-$150)
Thermostat Issues
10% of systemsSymptoms: Wrong temperature reading, no response, erratic cycling
Cause: Dead batteries, poor placement, age
Fix: Battery replacement or new thermostat ($50-$300)
Signs You Need More Than a Tune-Up
Sometimes maintenance reveals that bigger decisions are needed.
System is 15+ years old
Approaching end of lifespan, tune-up may reveal replacement is smarter
Action: Get tune-up assessment plus replacement estimate
R-22 refrigerant system
Refrigerant is phased out, leaks are very expensive to fix
Action: Plan replacement—R-22 repairs rarely make financial sense
Multiple repairs last summer
System reliability is declining, more failures likely
Action: Discuss repair vs. replace with technician
Energy bills climbing yearly
System efficiency degrading despite maintenance
Action: Get efficiency assessment, compare to new system costs
Rooms don't cool evenly
May need duct repairs, zoning, or properly sized replacement
Action: Request duct inspection and Manual J load calculation
Strange noises getting worse
Mechanical components failing, potential for cascading damage
Action: Don't delay—noises usually indicate imminent failure
Why Spring Maintenance Pays Off
Upgrading this year? Review our HVAC buying guide and available rebates and tax credits.
Frequently Asked Questions
When should I schedule spring AC maintenance in Texas?
February through March is ideal for Texas homeowners. You'll beat the spring rush, have excellent technician availability, and get normal pricing. April is still good, May is last chance before summer rates and wait times. By June, you'll face 2-7 day wait times and emergency pricing.
How much does a spring AC tune-up cost in North Texas?
Professional tune-ups typically cost $89-$150 in North Texas. This includes coil cleaning, refrigerant check, electrical testing, drain line clearing, and comprehensive inspection. Avoid extremely cheap offers ($39-$49)—they often upsell aggressively or skip important checks.
What's included in a professional AC tune-up?
A comprehensive tune-up includes: cleaning evaporator and condenser coils, checking refrigerant levels and pressures, testing electrical connections and components (capacitor, contactor), clearing and treating the drain line, verifying thermostat calibration, measuring temperature differential, inspecting ductwork, and testing safety controls. Service should take 45-90 minutes.
Can I do spring AC maintenance myself?
Homeowners can handle several tasks: replacing filters, clearing debris from outdoor unit, rinsing condenser coils with a garden hose, cleaning vents, pouring vinegar down the drain line, and testing system operation. However, professional tasks—checking refrigerant, testing electrical components, and cleaning evaporator coils—require specialized tools and EPA certification.
How often should I change my filter in spring?
During Texas spring (February-April), change filters every 30 days due to heavy pollen. Oak pollen season is particularly intense and can clog filters quickly. Once pollen season passes, you can extend to every 60-90 days depending on filter type and household factors (pets, allergies, etc.).
Why is spring maintenance more important in Texas?
Texas AC systems run 6-8 months continuously during our long cooling season—far more than northern states. This extended runtime means more wear, more condensate production (drain clog risk), and more debris accumulation. Systems that fail in July face 100°F+ heat and 2-7 day wait times for repair.
What temperature should I test my AC in spring?
Test your AC when outdoor temperatures are above 60°F. Most air conditioners have a low-ambient lockout that prevents the compressor from running when it's too cold. In Texas, most days from mid-March onward are warm enough for testing.
How do I clear my AC drain line for spring?
Locate the drain line (PVC pipe near your indoor unit), pour 1 cup of white vinegar down the line, wait 30 minutes for it to break down buildup, then flush with water. Verify water flows freely from the outdoor drain point. If water backs up or drains slowly, the line needs professional clearing.
Should I cover my AC unit in winter and uncover in spring?
Most HVAC professionals advise against covering AC units. Covers can trap moisture, encourage rust, and create homes for pests. Units are designed for outdoor exposure. If you do cover, only cover the top and remove it before any use—running a covered unit causes serious damage.
What's the most common spring AC problem in Texas?
Clogged drain lines are the #1 spring service call in Texas. Our high humidity produces 5-20 gallons of condensate daily, and algae/biofilm grows in the drain during winter when the system sits idle. This causes water leaks, system shutdowns, and potential water damage.
How long should my AC take to cool the house after first spring use?
A properly functioning AC should noticeably cool your home within 15-30 minutes of starting. You should feel cold air at vents within 5 minutes. If the system runs for an hour without cooling, or if air at vents isn't cold, there's a problem requiring professional diagnosis.
Is it worth getting a tune-up on an old AC system?
Yes, with caveats. For systems 10-15 years old, tune-ups help maximize remaining life. For systems 15+ years old or using R-22 refrigerant, use the tune-up as a diagnostic opportunity—have the technician assess overall condition and provide a replacement estimate so you can make an informed decision before summer emergencies.