HVAC Repair & AC Installation in Livingston, East Baton Rouge, West Baton Rouge & Ascension Parish.
Veteran-owned. Same-day service. Honest, upfront pricing.
When your AC goes down in a Louisiana summer, you don't have time for phone tag. Book online in under two minutes, or call (225) 963-1543 — we answer 24/7 and dispatch same-day across Denham Springs, Walker, Livingston, Watson, Central, Baton Rouge, and all of Southeast Louisiana.
The Mark of True Comfort.
Every HVAC service a Louisiana home needs — under one roof.
From a capacitor that failed overnight to a full-system replacement, we handle every stage of your HVAC life. All major brands, all major service areas, all in-house.
AC Repair
Same-day diagnosis and fixes for any AC system — we service every major brand.
Learn more →AC Installation
High-efficiency cooling systems sized right, installed right, with honest upfront pricing.
Learn more →Heating Repair
Furnace and heat pump repairs done right the first time. Safety checks included.
Learn more →Heating Installation
Quiet, efficient heating systems built for Louisiana winters and your budget.
Learn more →HVAC Maintenance
Seasonal tune-ups that catch small issues before they cost you a whole unit.
Learn more →Mini-Split Systems
Install, service, and repair for ductless mini-splits — Mitsubishi, Fujitsu, Daikin, and more.
Learn more →Indoor Air Quality
Whole-home purifiers, UV lights, MERV 13 filtration, and dehumidifiers for Louisiana humidity.
Learn more →24/7 Emergency HVAC
Broken at 2 a.m.? We answer the phone and dispatch the same day — 365 days a year.
Learn more →Built on a veteran's handshake — not a call-center script.
Signature Air is family-owned and veteran-led. We answer our own phones, we live in Livingston Parish, and our techs earn a straight salary — not commission — so the recommendation you get is the one your home actually needs.
- Veteran-owned & locally operated. We live here. Your neighbors are our neighbors.
- Flat, honest pricing. You approve the cost before we turn a wrench.
- Every major brand. Trane, Carrier, Lennox, Rheem, Goodman, York, American Standard.
- Same-day dispatch. If we answer before 2 PM, we work to be there that day.
- Licensed & insured in Louisiana. Every tech is background-checked and drug-tested.
Mike
Co-Owner & PartnerLeads equipment selection and system design — installs done right the first time.
Brennyn
Co-Owner & PartnerVeteran-led business leader focused on honest pricing and long-term relationships.
Andrew
Co-Owner & PartnerRuns operations and keeps every job to the standard we put our name on.
Comfort in four steps — no mystery, no runaround.
Book in 2 minutes
Choose a service, pick a window, and share your address. Confirmation arrives within the hour.
Text when we're rolling
You get a photo of your tech and a live ETA — no 4-hour arrival window. Ever.
Diagnose & quote
We walk you through what we find, show the part if we can, and quote flat — nothing starts without a yes.
Fix it & back it up
Most repairs done on the first visit. Every fix backed by a workmanship guarantee.
The cheapest insurance policy your AC will ever have.
Two seasonal tune-ups a year, priority dispatch, member-only pricing, and no trip fees. For the price of a pizza a month.
- Spring cooling tune-up + fall heating tune-up
- Jump to the front of the schedule — even on holidays
- 15% off all repairs and accessories
- Waived diagnostic fees, every visit
- Transferable if you sell your home
Residential plans start at $16/month per system. Cancel anytime — zero penalty, zero pressure. Over 200 Livingston Parish homes enrolled.
Same-day service across Southeast Louisiana.
We dispatch from Denham Springs and cover the full parish — plus Baton Rouge and the surrounding communities. If you're not sure whether you're in our area, call us.
Denham Springs, LA
HVAC repair, installation, and maintenance for Denham Springs homes and businesses. ZIP codes and local landmarks we serve.
Local services →Walker, LA
HVAC repair, installation, and maintenance for Walker homes and businesses. ZIP codes and local landmarks we serve.
Local services →Livingston, LA
HVAC repair, installation, and maintenance for Livingston homes and businesses. ZIP codes and local landmarks we serve.
Local services →Baton Rouge, LA
HVAC repair, installation, and maintenance for Baton Rouge homes and businesses. ZIP codes and local landmarks we serve.
Local services →Prairieville, LA
HVAC repair, installation, and maintenance for Prairieville homes and businesses. ZIP codes and local landmarks we serve.
Local services →Central, LA
HVAC repair, installation, and maintenance for Central homes and businesses. Serving ZIPs 70739 & 70818.
Local services →Baker, LA
HVAC service for Baker homes and light commercial. Serving 70714 & 70791 in East Baton Rouge Parish.
Local services →Holden, LA
HVAC repair and installation for rural Livingston Parish addresses. We come out to 70744.
Local services →Gonzales, LA
HVAC service for the Jambalaya Capital — residential, rental, and commercial in Ascension Parish.
Local services →French Settlement, LA
HVAC service for historic Creole homes and newer builds along LA-16 in southern Livingston Parish.
Local services →Springfield, LA
HVAC for Springfield, Killian, and Head of Island — including waterfront homes along the Tickfaw.
Local services →Hammond, LA
HVAC repair and installation in Hammond and Tangipahoa Parish — residential and near SLU.
Local services →Rated 5.0 across the board.
Verified 5-star reviews from Thumbtack customers across Livingston Parish and Baton Rouge. Read all 11 reviews →
“Was having issues with my A/C. Condenser stopped running. Gave them a call and scheduled an appointment the following day… they got it fixed and running within just a few hours. The pricing was fair and for once I didn't feel like I overpaid or got ripped off. Highly recommend.”
“Absolutely phenomenal!! Mike is extremely professional and full of knowledge! He didn't come to my home to just make money. Mike came with the intent to completely fix the issue and then informed me why the issue was happening every year.”
“They got out same day and got my A/C FIXED!! I couldn't be happier. Thank you Signature Air. We signed up on your Care Club plan so we will definitely be seeing you again soon.”
What most homeowners ask us first.
Do you charge a service fee to come out?
Our standard diagnostic fee is $89 and is waived entirely if you choose to move forward with the repair. Care Club members pay no diagnostic fee, ever.
How fast can you get here?
Most calls booked before 2 PM are handled the same day. After hours, our on-call tech is dispatched to true no-cool / no-heat emergencies across Livingston Parish and Baton Rouge 24/7. Reach us at (225) 963-1543.
Do you service every brand?
Yes. We work on Trane, Carrier, Lennox, Rheem, Goodman, American Standard, York, Daikin, Amana, and everything in between — residential, light commercial, and mini-splits.
Are you licensed and insured in Louisiana?
Absolutely. We carry a Louisiana mechanical contractor license and $1M in general liability — certificate of insurance available on request for commercial clients and HOAs.
What does a new AC system typically cost?
A full residential system replacement in the Baton Rouge area runs roughly $6,500–$13,500 depending on tonnage, SEER rating, and ductwork condition. We provide free, itemized in-home estimates with no pressure.
Can I finance a new system?
Yes — we offer 0% APR promotional financing for qualified buyers on approved credit, plus extended term options starting around $99/month. Ask us on the call.
Call now or book your slot — we'll do the rest.
Answering 24/7 at (225) 963-1543. Same-day technicians across Livingston Parish and Baton Rouge.