Mon-Clair Heating and Cooling LLC

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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 78 times

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.

Services offered

A/C services needed

Repair

Routine Maintenance

Property type

House

Condo/Apartment

Townhouse

Business

Projects and media

40 photos

Projects and media

40 photos

Reviews

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

Excellent 4.9

47 reviews

5

98%

4

0%

3

0%

2

0%

1

2%

Read reviews that mention:

Andrea F.

Jun 9, 2025

·

Hired on Thumbtack

Details: Outside • Outside • House

Central Air Conditioning Repair or Maintenance

Jeffrey P.

Jun 6, 2025

·

Hired on Thumbtack

Details: Repair • Only warm air is blowing from the vents • Basement • Outside • House

Central Air Conditioning Repair or Maintenance

Casey H.

May 30, 2025

·

Hired on Thumbtack

Responded and came out so quickly after we moved into our new house and found the air was not working! The problem was fixed asap. Thank you!

Details: Repair • Only warm air is blowing from the vents • Closet • Roof • Townhouse

Central Air Conditioning Repair or Maintenance

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

·

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

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.