The Ultimate HVAC Maintenance Checklist for Denver Homeowners

At MoJo, we know what Denver homeowners face year-round: hot, dry summers and freezing winters. These extreme seasonal shifts mean your heating and cooling systems work overtime — and without proper care, breakdowns, high utility bills, and safety issues can creep in.

We’ve put together the Ultimate HVAC Maintenance Checklist to help you stay ahead of the curve, extend the life of your system, and keep your home comfortable every season.

Spring & Summer HVAC Maintenance Checklist

As temperatures rise, your air conditioner becomes your home’s most valuable appliance. Here’s how to make sure it’s ready:

✅ Replace or Clean Air Filters

Dirty filters restrict airflow and reduce efficiency. Swap them every 1–3 months depending on your household size and if you have pets.

✅ Clear Debris Around Outdoor Unit

Leaves, dirt, and debris around the condenser can reduce system efficiency. Keep a 2-foot clearance around your A/C unit.

✅ Schedule a Professional A/C Tune-Up

Book a licensed HVAC technician to inspect and clean coils, check refrigerant levels, and ensure your system is running at peak performance.

✅ Test and Upgrade Thermostat

Make sure your thermostat is reading correctly. Consider upgrading to a programmable or smart thermostat for better control and savings.

✅ Inspect Ductwork for Leaks

Leaky ducts can waste up to 30% of your energy. Seal any visible gaps or call MoJo to perform a duct inspection.

Fall & Winter HVAC Maintenance Checklist

Denver winters are no joke. Here’s how to make sure your furnace or heat pump is ready for the cold:

✅ Replace Furnace Filters

Just like with your A/C, clean furnace filters help your system breathe and work more efficiently.

✅ Clean Burners and Heat Exchangers

Dust and soot buildup can reduce performance and pose a safety risk. Professional cleanings are strongly recommended.

✅ Calibrate Thermostat for Heating

Ensure your thermostat is calibrated and working properly for heating mode. If not, you may waste energy or experience uneven heating.

✅ Check for Carbon Monoxide

Have your HVAC tech perform a carbon monoxide safety check to ensure there are no leaks from your heat exchanger.

✅ Inspect and Test Ignition System

Whether you have a pilot light or electronic ignition, make sure it’s working correctly to avoid emergency breakdowns in the cold.

Year-Round Tips to Keep Your HVAC System Healthy

• Sign up for an annual maintenance plan. MoJo offers seasonal tune-ups to keep your HVAC system operating safely and efficiently.

• Seal air leaks around windows and doors. Prevent conditioned air from escaping.

• Monitor your energy bills. A sudden spike could be a sign of HVAC trouble.

• Listen for strange sounds. Rattling, banging, or humming could indicate loose parts or failing components.

• Don’t ignore odd smells. A burning or musty odor may mean it’s time for a service call.

Why Choose MoJo for HVAC Maintenance?

With over 16 years of experience in the Denver metro area, MoJo (formerly Technic Air Mechanical) has helped thousands of homeowners stay comfortable year-round. Our team delivers:

• Prompt, reliable service

• Honest assessments — no upselling

• Affordable maintenance plans

• Family-friendly service backed by real results

We’re not just HVAC experts — we’re your neighbors. From Wheat Ridge to Aurora, we’ve built our reputation on trust, skill, and a commitment to your comfort.