Frequently Asked Questions
Find answers to common questions about our HVAC services, maintenance, installations, and more.
General
What areas do you serve?
We serve Killeen, Belton, Temple, Harker Heights, Bell County, Salado, Georgetown, Round Rock, Waco, Copperas Cove, and other nearby communities. Not sure if we service your area? Contact us to find out!
What payment methods do you accept?
We accept cash, checks, and major credit cards. We also offer flexible financing options for larger installations and replacements.
Are you licensed and insured?
Yes, Alltek Services is fully licensed (TACLB31231E) and insured. Our technicians are certified professionals with extensive HVAC training and experience, and we maintain all required licenses and insurance for your protection.
Do you offer warranties on your work?
Yes, we offer comprehensive warranties on our work. New installations include manufacturer warranties, and our labor warranties cover both installations and repairs. Specific warranty terms vary by service and equipment — ask your technician for details.
Services & Scheduling
How do I schedule a service appointment?
You can schedule a service appointment by calling us at (254) 721-7049, completing the contact form on our website, or emailing us. Our customer service team will confirm your appointment promptly.
Do you offer emergency HVAC services?
We offer 24-hour scheduling for your convenience, but we do not provide weekend or after-hours service. Our regular business hours are Monday through Friday, 8:00 AM to 5:00 PM.
Do you provide free estimates?
We provide free estimates for new installations and replacements. Diagnostics and repairs do not include free estimates. Our technicians provide detailed estimates with no obligation so you can make an informed decision.
How quickly can you respond to service calls?
For emergency service, we aim to respond within 24 hours during weekdays. Response times may be longer during seasonal peak periods due to high demand. We prioritize calls based on severity and availability.
What should I expect during a service visit?
Our technicians arrive in company vehicles wearing uniforms with proper identification. They’ll discuss your concerns, inspect your system, and diagnose any issues. Before any work begins, they provide clear explanations of needed work and costs. After completion, they clean the work area and review the performed work with you.
Air Conditioning
How often should I replace my air conditioner?
Most air conditioning systems last between 10–15 years with proper maintenance. However, if your system requires frequent repairs, shows reduced efficiency, or cannot maintain comfortable temperatures, replacement may be necessary regardless of age.
Why is my air conditioner not cooling properly?
Common reasons include dirty air filters restricting airflow, low refrigerant levels from leaks, thermostat issues, dirty condenser coils, or a malfunctioning compressor. Regular maintenance can prevent many of these issues. We recommend scheduling a service call for proper diagnosis and repair.
What size air conditioner do I need for my home?
The right size depends on multiple factors including square footage, insulation levels, window efficiency, ceiling height, and local climate. An improperly sized unit leads to inefficiency, inadequate cooling, and premature failure. Our technicians perform detailed load calculations to ensure optimal sizing for your home.
How can I improve my air conditioner’s efficiency?
Regular maintenance is key. Additionally, you should change air filters monthly during heavy use, keep outdoor units clear of debris, use a programmable thermostat, ensure proper insulation, seal air leaks around doors and windows, use ceiling fans to help circulate air, and keep blinds closed during the hottest parts of the day.
Heating Systems
What’s the difference between a gas and electric furnace?
Gas furnaces burn natural gas for heat, providing warmer air output and lower operational costs in colder climates. Electric furnaces use electric heating elements, have lower upfront costs, require less maintenance, and need no gas lines. They cost more to operate but work efficiently in milder climates like Central Texas.
Why is my furnace making strange noises?
Different noises indicate different problems: banging or popping suggests delayed ignition or expanding ductwork; whistling indicates air leaks; scraping might be a blower wheel issue; rumbling could suggest dirty burners; and high-pitched squealing typically points to belt or motor bearing problems. We recommend a professional inspection for any unusual sounds.
How often should I change my furnace filter?
For standard 1-inch filters, replacement every 1–3 months is recommended depending on usage, pets, allergies, and air quality. Thicker premium filters may last 6–12 months. Check your filters monthly during heavy use seasons and replace them when they appear dirty.
What maintenance does my heating system need?
Annual professional maintenance before heating season should include inspecting heat exchangers for cracks, testing safety controls, checking electrical connections, lubricating moving parts, cleaning burners and components, checking gas pressure and connections, and ensuring proper airflow. As a homeowner, you should regularly change filters and keep the area around your furnace clean and clear.
Maintenance
How often should I schedule HVAC maintenance?
We recommend professional maintenance twice a year — spring for your cooling system and fall for your heating system. This ensures your equipment is ready for heavy-use seasons, extends system life, improves efficiency, prevents unexpected breakdowns, and helps maintain warranty coverage.
What does a maintenance visit include?
Our comprehensive maintenance includes inspecting and cleaning components, checking refrigerant levels, testing electrical connections and controls, lubricating moving parts, checking thermostat operation, inspecting condensate drainage, checking air filters, testing system operation in all modes, and identifying potential issues before they become major problems.
Do you offer maintenance plans?
Yes, we offer several maintenance plan options for different needs and budgets. Plans include priority scheduling, repair discounts, regular maintenance visits, and extended warranty coverage. Members also receive special pricing on system replacements and accessories. Visit our Services page for details on our Silver, Gold, and Platinum plans.
What maintenance can I do myself?
Homeowners can regularly change air filters, keep outdoor units clear of debris, ensure indoor vents aren’t blocked, clean visible dust from registers and returns, monitor thermostat operation, and check for unusual noises or odors. However, any technical maintenance involving electrical components, refrigerant, or internal parts should always be handled by a professional.
Indoor Air Quality
How can I improve my home’s indoor air quality?
There are several approaches including installing high-efficiency air filters, adding air purification systems, using UV light systems to kill airborne pathogens, ensuring proper ventilation, controlling humidity with humidifiers or dehumidifiers, regular duct cleaning, and routine HVAC maintenance. Our technicians can assess your specific needs and recommend the best solutions.
How often should I have my air ducts cleaned?
The National Air Duct Cleaners Association recommends cleaning air ducts every 3–5 years under normal conditions. More frequent cleaning may be needed if you have pets, allergies, have completed recent renovations, experienced water damage, or notice visible mold growth. Regular inspections can help determine when cleaning is necessary.
What’s the ideal humidity level for my home?
The ideal indoor humidity level is around 55%. Levels that are too low cause dry skin, irritated sinuses, and furniture damage. Levels that are too high promote mold growth, dust mites, and bacteria. Central Texas’s humid climate often requires dehumidification, especially during summer months.
Are UV light systems effective for air purification?
Yes, UV light systems installed in HVAC systems effectively kill or inactivate airborne pathogens including bacteria, viruses, and mold spores. They are most effective when combined with high-efficiency filtration. UV systems require annual lamp replacement and don’t remove particles or chemicals, so they work best as part of a comprehensive air quality strategy.
What MERV rating should my air filter have?
MERV (Minimum Efficiency Reporting Value) ratings range from 1–20, with higher numbers indicating better filtration. For most residential systems, MERV 8–13 filters provide a good balance between filtration and airflow. Higher ratings (14+) offer superior filtration but may restrict airflow in systems not designed for them. Our technicians can recommend the best option for your system.
Honest, Reliable Service Available In These Areas
We are committed to providing exceptional HVAC services throughout Killeen, Belton, Temple, and surrounding Central Texas communities. Our service area is always growing.
Primary Service Areas
- Killeen
- Belton
- Temple
- Harker Heights
- Bell County
Additional Areas
- Salado
- Georgetown
- Round Rock
- Waco
- Copperas Cove
Not sure if we service your area? Give us a call at (254) 721-7049 to find out!
Still Have Questions?
Can’t find the answer you’re looking for? Our team is here to help with any questions about our services.