Air Conditioning Maintenance
TMI delivers comprehensive air conditioning maintenance and tune-ups in Davenport, Bettendorf, Rock Island, and Moline. Our technicians perform detailed inspections, clean key components, and fine-tune your system to maximize efficiency, prevent breakdowns, and extend its lifespan. Schedule today for reliable, expert care that keeps your home cool and worry-free.

Serving the Quad Cities with Comprehensive System Maintenance
Don’t wait until the heat hits to get your AC system checked. Contact TMI Services Inc. today to schedule professional maintenance and keep your cooling system running efficiently all season long. Our team provides thorough inspections, tune-ups, and honest recommendations to help you avoid breakdowns and extend the life of your equipment.
Call 563.900.8788 or book your service online.
How Annual Maintenance Goes a Long Way
AC systems in the Quad Cities work hard—long, humid stretches along the Mississippi, sudden heat waves, spring pollen, and even that late-season cottonwood fluff that blankets outdoor coils. A professional tune-up keeps your system ready for Davenport, Bettendorf, Moline, and Rock Island weather so it cools faster, runs quieter, and uses less energy.
✔ Lower Energy Bills
Clean coils and correct airflow mean shorter run times—real savings during humid Davenport–Bettendorf summers.
✔ Fewer Breakdowns
Tune-ups catch weak capacitors, clogged drains, and airflow restrictions before they snowball. Fewer surprise no-cool calls on those 95° Moline weekends.
✔ Better Humidity Control
A properly charged, clean system pulls more moisture out of Mississippi River air. Your home feels cooler at the same setpoint, and stickiness drops.
✔ Faster, More Even Cooling
Airflow balancing and small adjustments help upstairs rooms in Rock Island cool as quickly as the main floor, cutting those “hot room” complaints.
✔ Cleaner Indoor Air
A tight filter fit and a clean blower/evaporator reduce dust and pollen—useful near farm fields and during cottonwood season along the river.
✔ Quieter Operation
Tuned blower ramps and tightened panels tame rattles and whine. The result is a smoother, calmer cool you notice the moment the system starts.
✔ Longer Equipment Life
When motors and compressors aren’t fighting dirt, bad bearings, or low airflow, they run cooler and last longer. That’s fewer big-ticket repairs over time.
✔ Warranty & Resale Confidence
Most manufacturers expect routine maintenance; documented service helps protect coverage—and looks great to buyers across the Quad Cities.
Best Time to Schedule Maintenance in the Quad Cities
Short answer: any time you do it is better than skipping it. Maintenance isn’t a tiny spring-only window—it’s a year-round way to keep bills down and breakdowns away.
Pre-season (March–May): tune up before the first big heat wave so the system hits summer at full efficiency.
Mid/late season (July–September): if you missed spring or your home sees heavy use (pets, dust, lots of laundry), a mid-season refresh keeps performance and dehumidification on track.
Heat pumps: plan twice yearly—spring for cooling, fall for heating.
If it’s already hot outside: schedule now. A tune-up during the season still prevents failures, improves humidity control, and can lower next month’s bill.
Great reasons to book anytime: after renovations or drywall work, before hosting guests, when allergies are flaring, if rooms feel stuffy or uneven, or when your energy bill jumps without explanation.
What’s Included in our AC Maintenance & Tune-Up Service
Condensate Drain Cleaning
We clear and treat the drain line, verify float switches, and confirm proper slope so water moves out—preventing leaks, odors, and humidity issues.
Full-System Safety & Performance Inspection
A methodical check of major components (indoor and outdoor) to confirm safe operation and catch wear before it becomes a failure.
Filter Service & Fit Check
We replace the filter (or clean if reusable) and ensure the rack seals correctly so air isn’t bypassing and loading your coil with dust.
Evaporator & Condenser Coil Cleaning
Coils are cleaned the right way (no fin damage) to restore heat transfer, lower run times, and protect compressors from unnecessary strain.
Refrigerant Diagnostics & Charge Verification
We measure superheat/subcool to verify charge and system health; if adjustments are needed, we charge to manufacturer specifications.
Thermostat Calibration & Controls Check
We confirm accurate temperature readings, proper staging, fan settings, and schedule logic so comfort is consistent room to room.
Electrical Testing Under Load
Capacitors, contactors, relays, and motors are tested and connections tightened; we document amperage and voltage so trends are visible over time.
Airflow & Static Pressure Measurement
We check airflow across the coil and measure static pressure to spot duct restrictions that cause hot rooms, noise, or high energy use.
Blower Assembly Service
The blower wheel and housing are inspected and cleaned as needed; belt/pulley or ECM settings are checked for smooth, efficient operation.
Temperature Split (Delta-T) Verification
Supply/return temperatures are measured to confirm the system is actually removing heat and moisture as designed.
Outdoor Unit Condition & Clearances
We clean the cabinet, check level and vibration, and ensure proper clearance from shrubs/debris so the condenser can breathe.
Reporting, Photos & Recommendations
You receive a written report (and photos when helpful) with findings, readings, and any prioritized recommendations—so there are no surprises later.
Sign Up For Our VIP Protection Plan for Complete Peace of Mind
TMI provides a wide variety of protection plans for your heating, air conditioning, plumbing and major appliances. The VIP plans provide peace of mind, as well as protection against expensive repairs and long waits for service. There is never a deductible for labor, service or parts covered. With the VIP Protection Plan you will receive fast service and “live” people that answer the phone. Finally, if your appliance is not able to be repaired you will be offered a replacement allowance to go toward the purchase of a new unit.

Why Quad Cities Homeowners Choose TMI for AC Tune-Ups
Keeping an AC system reliable in the Quad Cities takes local know-how—sticky Mississippi River air, cottonwood season, sudden heat waves, and farm-area dust all change how maintenance should be done. Here’s how TMI tunes for Davenport, Bettendorf, Moline, and Rock Island homes.
☆ Rooted here since 1973.
TMI isn’t a drop-in contractor—we’re a Quad Cities company serving Eastern Iowa and Western Illinois for over five decades. We know the damp Mississippi River air that makes 72° feel sticky, the cottonwood that coats outdoor coils every June, and the farm-country dust that sneaks past loose filter racks. Our advice is shaped by Davenport, Bettendorf, Moline, and Rock Island realities—not a generic playbook.
☆ Maintenance that reflects our backyard.
We tune systems for local conditions: verify airflow and static pressure, charge by superheat/subcool (not guesswork), clean coils the right way during cottonwood season, and clear/ treat condensate lines before summer storms. The result is steadier comfort, better dehumidification, and fewer mid-July surprises.
☆ People you’ll see again—and want to.
Our technicians are TMI employees, trained to manufacturer specs and held to our standard of honest, exceptional customer service. They show up on time, explain what they’re doing in plain language, and leave your home as tidy as they found it. You’ll know exactly what we did and why it matters.
☆ Proactive care, not patchwork.
Anyone can reset a breaker. We look for the small trends—weak capacitors, creeping static pressure, rising motor amps—that become big breakdowns on a 95° weekend. Catching issues early protects your comfort and your wallet.
☆ Here when it counts.
If something pops up after a tune-up, you won’t chase us. We answer the phone, prioritize maintenance customers, and arrive with stocked vans to finish most fixes on the first visit.
☆ A local partner for the long haul.
From older two-story homes in Rock Island to new builds in Bettendorf, we keep a service history on your equipment so each visit gets smarter. Season after season, your system runs quieter, cooler, and more efficiently—because someone who knows your house and our climate is looking after it.
Want AC care that’s genuinely local—and genuinely better? That’s TMI.