Family-owned · 21-point inspection
AC Maintenance & Tune-Up in Plainfield & the Western Suburbs
Your home is your fortress. We protect your comfort. A real AC tune-up is a documented 21-point inspection with actual readings, not a filter swap and an invoice — here's what should happen before the first real heat wave.
Family-owned
Built on trust. Not private equity.
Premium service
Quality workmanship you can rely on.
Honest pricing
Straightforward. No games.
Always on call
Emergency calls answered 24/7 — even Sundays.
Cooling
AC Maintenance & Tune-Up
A documented 21-point inspection every visit — temperature split, refrigerant charge, amp draw — not just a filter swap and an invoice.
Other cooling services
AC Repair
$150–$600AC Installation & Replacement
$5,000–$10,000Ductless AC Installation & Mini-Splits
From $3,000/zoneAC Maintenance
$119
AC Maintenance
The spring tune-up that keeps a July breakdown from happening in the first place.
A dirty condenser coil can cost you a quarter of your capacity. Annual service catches the slow failures — weak capacitors, low charge, restricted airflow — while they are still cheap.
- Condenser and evaporator coil cleaning
- Refrigerant charge verification
- Capacitor and amp-draw testing
- Condensate drain clearing
Air conditioning maintenance at FortHouse is a 21-point inspection with real readings — temperature split, refrigerant charge, amp draw — not just a filter swap and an invoice. Plainfield and Naperville homeowners get those numbers in writing before the first heat wave, not after a breakdown.
Booked in spring, before the first real heat wave, it's the difference between a scheduled tune-up and a July breakdown that turns into an emergency call.
What a real AC maintenance visit checks
A 21-point inspection, every visit, not as an upsell. These four do the most to prevent a summer breakdown:
- Condenser coil cleaning — a dirty coil restricts heat transfer and can cost a system up to a quarter of its cooling capacity, gradually enough that it's easy to miss until the warning signs are obvious.
- Refrigerant charge verification — refrigerant runs in a sealed loop and doesn't get used up through normal operation, so a low charge always means a slow leak, not something that just needs a routine top-off.
- Capacitor and amp-draw testing — a weakening capacitor is one of the most common causes of a system that won't start at all, and it's catchable months before it actually fails.
- Condensate drain flush — a clogged drain doesn't just risk water damage; it's also what trips a float switch and shuts the whole system down on the hottest day of the year.
What is in the 21-point AC tune-up checklist?
Every point below is checked on every visit, and findings are documented on the invoice:
- Condenser coil cleaning — accessible outdoor coils cleaned to improve airflow and heat transfer.
- Refrigerant level check — refrigerant charge evaluated using system operating measurements.
- Capacitor testing — performance measured to detect weakening components.
- Condensate drain flush — drain line flushed to help prevent clogs and water damage.
- Compressor amp draw test — electrical demand compared against equipment specifications.
- Contactor inspection — contacts checked for wear, pitting, and proper operation.
- System performance test — overall cooling performance and operation.
- Condenser fan motor inspection — motor operation, condition, and amp draw.
- Indoor blower motor inspection — blower performance and electrical load.
- Air filter inspection — filter condition, with replacement recommended when needed.
- Evaporator coil inspection — accessible indoor coil surfaces checked for dirt and restrictions.
- Temperature split measurement — return and supply air temperatures measured.
- Electrical connection inspection — accessible wiring and connections checked for overheating or deterioration.
- Thermostat operation check — cooling commands, settings, and response verified.
- Condensate pan inspection — checked for buildup, leaks, or drainage concerns.
- Refrigerant line inspection — visible refrigerant lines, insulation, and signs of leakage.
- Safety control inspection — accessible safety devices and protections verified.
- Outdoor unit inspection — cabinet condition, mounting, clearance, and airflow restrictions.
- Airflow evaluation — supply and return airflow assessed for potential restrictions.
- System startup and shutdown test — proper cooling cycle operation verified.
- Final efficiency and performance review — findings documented, with opportunities to improve reliability and efficiency identified.
What a $49 special is actually selling
A real AC tune-up costs what it costs because a technician's time, gauges, and an actual coil cleaning aren't free. A price far under that isn't a discount — it's a sales call with a wrench in hand, and the upsell is the actual product. If the invoice has no numbers on it afterward — no temperature split, no refrigerant readings, nothing beyond "looks fine" — nobody actually measured anything.
What AC maintenance costs
A real AC maintenance visit runs $119 and takes 60–90 minutes — the full 21-point inspection, including coil cleaning, refrigerant verification, capacitor and amp-draw testing, and condensate drain flushing, all included, not billed separately as items are "discovered."
When to book it: the spring window
Before the first real heat wave, not during it. Booking in spring means a technician catches a weak capacitor or a slow refrigerant leak while it's a scheduled fix, instead of finding out on the 95° day it finally fails — which is also the day every other AC in the area is failing too, and appointment windows stretch out accordingly. The spring tune-up checklist lists what a visit should cover.
Signs your AC needs more than maintenance
A tune-up catches slow failures while they're still cheap. It doesn't fix a system that's already failing. Ice on the coil or line set is one sign maintenance alone won't resolve. A system that's chronically undersized, a failing compressor, or a second repair in one season point toward a repair-or-replace conversation instead of a maintenance one.
What to check before you book AC maintenance
A few real questions separate a real visit from a filter check with an invoice:
- Does the price include the full inspection, or does a lower price mean checks get quietly skipped?
- Does the invoice show real readings — temperature split, refrigerant charge, amp draw — or just "looks good"?
- Is the coil actually cleaned, not just glanced at?
- Who actually owns the company? We're family-owned, not backed by private equity — it changes whether the incentive is a thorough visit or a fast one.
AC maintenance across Plainfield and Chicago's western suburbs
We run AC maintenance across the whole service area every spring — the same crew that handles AC repair and installation, so the annual visit and the emergency call are handled by people who already know your system and your township.
Service area
AC Maintenance across Chicago's western suburbs.
Common questions
AC Maintenance — frequently asked.
How much does AC maintenance cost?
A FortHouse AC tune-up runs $119 and is a 21-point inspection, including condenser coil cleaning, refrigerant charge verification, capacitor and amp-draw testing, and condensate drain flushing. A price well under that usually means checks are being skipped.
What's included in AC maintenance?
A 21-point inspection: condenser coil cleaning, refrigerant level check, capacitor testing, condensate drain flush, compressor amp draw, contactor inspection, temperature split, airflow evaluation, and a full cooling performance test, among others — with findings documented, not just a visual check.
How long does AC maintenance take?
60–90 minutes for a thorough visit covering the full 21-point inspection. A visit noticeably shorter than that is more likely a quick look-and-leave than a full inspection.
When should I get my AC serviced?
Spring, before the first real heat wave. Booking early catches a weak capacitor or slow refrigerant leak as a scheduled fix instead of a breakdown on the hottest day of the year, when every other AC in the area is failing too.
Is annual AC maintenance actually worth it?
Yes — a dirty condenser coil alone can cost a system up to a quarter of its cooling capacity, and it happens slowly enough that most homeowners never connect the gradual decline to a specific cause. Annual maintenance catches that and similar slow failures while they're still cheap.
What areas do you cover for AC maintenance?
Plainfield, Naperville, Oswego, Yorkville, Bolingbrook, Wheaton, Lisle, Minooka, Shorewood, and Aurora, plus the rest of Chicago's western suburbs. If you're just outside that list, call anyway — we make exceptions for a reasonable drive.
How we work
You call, we diagnose with real measurements, you get a flat written number before anything starts, then we fix it and put the post-repair readings on the invoice next to the originals. See the full four-step process.
Book a visit
(630) 318-6246