Serving St. Tammany Parish & Surrounding Areas
Join The Club
Extend the lifespan of your system by joining the Pelican Perk Plan!
Shop Online
Get an online system replacement estimate.
Current Specials
Save on your next service with these sweet deals & promotions!
Career Opportunities
We’re growing and looking for new team members at All In!
Heating & Air Conditioning Company in Slidell, LA
As a homeowner in Slidell, Louisiana, you know how important it is to have a reliable HVAC system—especially during our long, humid summers and chilly winter nights. At All In Heating & Air, we’re proud to serve the Slidell community with trusted, high-quality residential HVAC services.
Whether you’re scheduling routine maintenance or need an emergency repair, our team is ready to handle all of your heating, air conditioning, and ventilation needs. We’re committed to delivering personalized service and dependable solutions that keep your home comfortable year-round.
With over 30 years of HVAC experience, All In Heating & Air brings deep technical expertise, honest recommendations, and unmatched customer care to every job.
Pelican Perk Plan
Preventative Maintenance for Your HVAC System
You work hard to maintain the quality of life that you and your family deserve. Neglecting routine furnace maintenance can lead to costly heating repairs and high utility bills. With All In Heating & Air, all of those worries go away.
Our annual preventative maintenance plan offers the routine care your heating and air conditioning system needs. Additionally, you’ll receive:
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15% discount on parts & labor
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Priority repair service
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No after hours fee
Sign up online today to enjoy a more stress-free, comfortable home.
Looking To Replace?
Our Process Is Quick & Simple!
We’ll need some information about your home & current system to prepare our recommendations.
Immediately after completing the form, we’ll provide you with three unique replacement options.
Once you’ve chosen the solution that best meets your needs, you can schedule your in-home visit.