Same-day diagnostic · NATE certified · since 2003

When the AC dies on the hottest day of the year, we’re already on the way.

$89 diagnostic, credited back when you book the repair. NATE-certified techs in marked trucks, lifetime workmanship warranty on every install, and a real human answers the phone 24/7 — even Sundays at 2am.

NATE certified BBB A+ rated EPA 608 universal 2,400+ Google reviews
Available today · Next slot: 2:15 PM
22Years in business
2.4K5-star reviews
A+BBB rating
24/7Emergency line
100%Lifetime warranty
Why people call us

The HVAC nightmare isn’t the broken unit. It’s the contractor who never calls back.

If any of these sound familiar, you’re not crazy — and you’re not alone. Most of our new customers came to us after one of these.

The Ironclad standard

We only install Carrier, Trane, and Daikin. And we stake our reputation on the 30-minute on-time guarantee.

Three things make us different from the guy whose number is on every fridge magnet in your zip code. None of them are negotiable.

01 / EQUIPMENT

Three brands, zero compromises

We install Carrier, Trane, and Daikin exclusively. Better SEER ratings, longer warranties, and parts that are still stocked 15 years from now. No off-brand systems, no “manufacturer’s closeouts.”

02 / ARRIVAL

30 minutes late = $100 off

Your appointment window is 60 minutes, not “sometime between 8 and 5.” We text on the way, we show photos of the tech assigned, and if we miss the window by 30+ minutes, we knock $100 off your bill. Every time.

03 / PRICING

Flat-rate before we touch a tool

You see the full price — parts, labor, disposal — before we start. No “ran into a snag” surprises at the end. If we underquote, we eat it. That’s what flat-rate means.

What we fix

Heating, cooling, indoor air, and water heaters — residential and light commercial.

AC Repair

Same-day diagnostic on any cooling system, any brand. Most repairs done in one visit.

From $89 diagnostic

Furnace Service

Gas, oil, electric, or heat-pump systems. Tune-ups, repairs, and full replacements.

From $89 diagnostic

New Install

Whole-system Carrier, Trane, or Daikin installs with lifetime workmanship warranty.

Free in-home quote

Indoor Air Quality

HEPA filtration, UV-C purifiers, and whole-home humidifiers for the asthma/allergy crowd.

From $349 installed
Our maintenance plan

The Ironclad Comfort Club — for $19/month, we keep your system alive.

Two seasonal tune-ups, priority dispatch when emergencies happen, and 15% off every repair and replacement. Most members save $400+ in the first year — and never get charged a diagnostic fee again.

Join the Comfort Club →

What’s in the membership

  • Spring AC precision tune-up$179 value
  • Fall furnace safety inspection$179 value
  • Priority same-day dispatch (skip the queue)Priceless
  • 15% off every repair, every install$300+ avg/yr
  • No diagnostic fees on covered calls$89 × visits
  • Lifetime workmanship warranty (members only)Locked-in
  • Total in year one$228/yr
2,400+ five-star reviews

What homeowners say after the truck pulls out of the driveway.

★★★★★
“Our AC died at 9pm on a Friday in July. I called four companies. Ironclad was the only one who picked up — and the tech was on the porch by 11pm. Cool air by midnight. I will never call anyone else.”
JM
Jenna M.
Homeowner · Westfield
★★★★★
“Got three quotes for a full system replacement. Ironclad was the middle price but the only one who walked me through every line item. Five years in, zero issues. Best home decision I’ve made.”
DR
David R.
Homeowner · Maple Heights
★★★★★
“The Comfort Club paid for itself in the first six months. Tech caught a failing capacitor on the spring tune-up that would’ve died in the middle of August. The 15% discount on the repair was just gravy.”
PC
Patricia C.
Comfort Club member · 3yr
100%
Workmanship
Warranty
The Ironclad promise

If we install it, we own it — for as long as you own the house.

Every install we touch carries a lifetime workmanship warranty. That means if anything goes sideways because of how we wired, mounted, or routed your system — we’re back out, no charge, no questions, no “well that was outside the scope” conversation.

Combine that with the manufacturer warranty on the equipment itself (10-12 years parts on Carrier/Trane/Daikin), and you’ve got a system that’s genuinely protected for the next decade-plus.

Common questions

Before you book, here’s what people ask.

How much is the diagnostic, and what does it cover?

$89 flat. The tech arrives within your 60-minute window, runs a full systems check (refrigerant levels, electrical, airflow, drainage), and gives you a written flat-rate repair quote before any work happens. If you approve the repair, the $89 is credited back — the diagnostic is effectively free.

Are you really available 24/7? Like, even Sunday at 2am?

Yes — a real human, not a voicemail. We staff our after-hours line with our own techs (rotating on-call), not a national call center. After-hours service has a $149 trip charge, also credited back if you book the repair.

Do you offer financing on new systems?

Yes. 0% APR for 18 months on installs over $4,000, through Wells Fargo or Synchrony. Approval in under 5 minutes from the kitchen table.

What if you don’t service the brand I have?

We service every major residential brand — including the discount brands we don’t install. If the system is salvageable, we’ll repair it. If it’s on its last legs, we’ll tell you straight (no upsell pressure).

Are your techs background-checked and drug-tested?

Every Ironclad tech passes a federal background check + 5-panel drug screen before their first ride-along, and is re-screened annually. We send you a photo + bio of the tech assigned before they arrive.

Book your service

Stop scrolling. Get the truck rolling.

Same-day diagnostic, $89 credited when you book the repair. Real human answers in under 90 seconds.

Book Online (90 seconds) → Or call (555) 123-4567
3 same-day slots left for cooling repairs this week