MD Air and Heat HVAC technician arriving at a Northshore Louisiana home

Northshore’s HVAC Company Since 1984.

Q: Does MD Air serve Covington and Mandeville, not just Slidell?

Yes. We serve the entire Northshore including Slidell, Covington, Mandeville, Madisonville, LaCombe, Pearl River, Abita Springs, and Hammond, as well as Southshore communities across the lake.

Salaried technicians. Background-checked. Same-day service available across Slidell, Covington, and Mandeville.

4.8 Stars · 100+ Google Reviews

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40 Years Serving the Northshore

Salaried W-2 Technicians — No Subcontractors. Ever.

12-Year Parts & Labor Warranty on New Installations

Since 1984 40+ Years on the Northshore

Salaried Technicians No subcontractors. Ever.

12-Year Warranty Best coverage on the Northshore

Same-Day Available 24/7 emergency response

MD Air technician diagnosing AC unit repair in Slidell Louisiana

AC Repair

Same-day diagnosis. Written report after every visit. All makes and models.

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MD Air installing new Trane AC system at Northshore Louisiana home

AC Installation

Authorized Trane & Mitsubishi dealer. 12-year warranty. 0% financing.

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MD Air emergency HVAC service van arriving at Northshore Louisiana home at dusk

Emergency Service

24/7. Real people answer — not a voicemail. Salaried tech dispatched fast.

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MD Air technician performing HVAC maintenance tune-up in Louisiana

Maintenance / MD Shield

Annual tune-ups, priority scheduling, $50 off repairs. From $90/year.

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New heat pump installation at Northshore Louisiana residential home

Heat Pumps

Louisiana-optimized. Cooling and heating in one system — ideal for the Northshore.

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Ductless / Mini-Split

Mitsubishi dealer. Whole home or single room. No ductwork required.

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Indoor Air Quality

UV lights, whole-home purifiers, humidity control. Built for Louisiana’s climate.

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Commercial HVAC

Restaurants, retail, property managers. Salaried crews. Priority response for accounts.

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Don’t see what you need? We handle it all — call us directly.

985-649-5379

I have been using them for over 15 years. Whenever I needed them they always came the same day — the techs are excellent, knowledgeable and great guys. Highly recommend.

Mike was kind and courteous and so very honest and helpful. I cannot recommend them highly enough. He helped me at an unfortunate time while home on vacation — he was truly a gem to have found. Thank y’all so much!

I have used this team — specifically Mike — for the last 4 years. They are outstanding. Professional, kind, understanding. He babied my old unit along until I was financially ready to replace it. Just got the inside unit done and now I have to pull out a blanket it’s so cold when the heat index is 99 outside. I will recommend him time and again.

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Tell us what’s going on. We’ll ask a few quick questions and get you scheduled — same-day when available, 24/7 for emergencies.

We Show Up — In Uniform

A salaried MD Air technician arrives in our branded green van. Background-checked, NATE-certified, and ready with the right tools for the job.

Fixed & Backed by Warranty

We diagnose, repair, or install — then leave a written report of every finding. Every repair is backed by our work. Every installation by up to 12 years.

Ready to get started? Call Now — 985-649-5379 Get a Free Estimate

No Pressure. No Commitment.

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Written Estimate

We’ll review your system and give you a straight answer — in writing — before any work begins. No surprise bills. No upsell pressure. Just an honest assessment from a salaried technician who works for us, not for commission.

Same-day estimates available Salaried techs — not salespeople Serving the Northshore since 1984

Get My Free Estimate 985-649-5379

Free estimate · No obligation · Written report included

How quickly can MD Air respond to an emergency AC repair in Slidell?

For emergencies, we’re available 24/7 at 985-649-5379. We dispatch the nearest available salaried technician and aim to respond same-day for most Northshore and Southshore calls.

Does MD Air use subcontractors?

Never. Every MD Air technician is a salaried W-2 employee who has passed a background check. The person who arrives at your door works for us — not a third party.

What warranty does MD Air offer on new HVAC installations?

We offer a 10-year labor warranty on all qualifying new installations, with up to 12 years of parts-and-labor coverage through our JB Warranty program — the best warranty available from any Northshore HVAC contractor.

How much does an AC tune-up cost at MD Air?

Our AC tune-up starts at $90 and includes a full system inspection, coil check, refrigerant level assessment, drain line flush, and a written report. Maintenance plan members receive $50 off all repairs throughout the year.

Does MD Air serve Covington and Mandeville, not just Slidell?

Yes. We serve the entire Northshore — including Slidell, Covington, Mandeville, Madisonville, LaCombe, Pearl River, Abita Springs, and Hammond — as well as Southshore communities across the lake.

How long has MD Air been in business?

MD Air has served the Northshore and Southshore of Louisiana since 1984 — over 40 years of continuous local service.

Still have a question? Call us — real people answer.

985-649-5379

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No spam. No pressure. Callbacks usually within the hour during business hours.

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985-649-5379

40 Years on the Northshore

Salaried W-2 Technicians — No Subcontractors

12-Year Warranty on New Installations

Northshore’s HVAC Company Since 1984.