Mon-Clair Heating and Cooling LLC

Top Pro

$80/service call

Estimated price

Select a service

Zip code

Scheduling

Air handler location

A/C services needed

Responds in about 2 hours

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Introduction

Hi my Name is Nick Antonas owner of Mon-Clair Heating and Cooling, we are locally owned and operated. I have 20+ years of experiece in the HVAC industry. We are licensed and insured. We believe in doing quality work at an affordable price. We are an American Standard heating and Cooling dealer as well as a Mitsubishi Mini-Split dealer, but we work on all makes. We look forward to serving you for your residential and light commercial heating and cooling needs. We offer 10% off for military/First Responders and 5% off for Senior Citizens.

Overview

Current Top Pro

Hired 26 times

Serves Millstadt, IL

Background checked

License verified

1 employee

2 years in business

Business hours

SunClosedMon8:00 am - 6:00 pm

Payment methods

This pro accepts payments via Cash, Check, Credit card, and Square cash app.

Specialties

A/C services needed

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Reviews

Customers rated this pro highly for professionalism, work quality, and punctuality.

Exceptional 5.0

29 reviews

5

100%

4

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Read reviews that mention:

Michael A.

Mar 17, 2025

·

Hired on Thumbtack

Details: Repair • Only warm air is blowing from the vents • Unit won't turn on or off • The power is on, but the fan won't run • Routine maintenance • Outside • Outside • House

Central Air Conditioning Repair or Maintenance

Kelly D.

Feb 11, 2025

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Hired on Thumbtack

So helpful and responsive with getting our new thermostat installed and making sure everything was in working condition!

Details: Replacement • Central heating or cooling • House

Mon-Clair Heating and Cooling LLC's reply

Glad to help!

Thermostat Installation or Repair

Joseph H.

3 weeks ago

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Hired on Thumbtack

Nick is fantastic. He checked out the two AC units at my new home, cleaned my condenser coils, added refrigerant, and answered my follow-up questions. I will turn to him first for my HVAC needs in the future.

Details: Repair • Outside • House

Central Air Conditioning Repair or Maintenance

Jenna S.

4 weeks ago

·

Hired on Thumbtack

Details: New installation • Central heating or cooling • House

Thermostat Installation or Repair

Henry B.

Mar 20, 2025

·

Hired on Thumbtack

Mr. Nick is an wonderful person to work with. He knows his craft very well and is very reasonable with his pricing. Looking to get a lot more projects done together with him.

Details: Furnace • Not enough heat • System keeps cycling • Basement • Single-level building • House

Heating System Repair or Maintenance

Credentials

License

License Type: HVAC (St. Louis, MO)

License verified on 1/28/2025

Background Check

Nicholas Antonas

FAQs

What should the customer know about your pricing (e.g., discounts, fees)?
We charge an $90 service call fee to diagnose your issue. Parts and labor are extra. Standard 1" filter replacement is $10. We offer a 10% discount for Military and First Responders. We also offer a 5% discount for Senior citizens.
What is your typical process for working with a new customer?
We call the customer and set up an appointment for a 2 hour time block that meets their and our availability.
What education and/or training do you have that relates to your work?
I have a HVAC certificate from Jefferson College in Hillsboro MO which i received in the year 2000. I also carry a St. Louis County and City Journeyman's License.