The lake keeps Mandeville humid well into the fall. We’re about 34 minutes away on I-12, and we start with the moisture, not just the thermostat.


Mandeville sits on the north shore of Lake Pontchartrain between the Tchefuncte River and the Tammany Trace. The pines make it look dry, but the town sits close to lake level over a high seasonal water table, and the lake keeps the air humid well into late summer.
That’s why we start every Mandeville visit with a load calculation and moisture readings, then size, seal and drain the system for the house it’s in.
About 34 minutes and 27 miles from our shop on the I-12 service road by way of I-12 and US 190.
When a home inspector someday asks who installed this and when, the answer is in your file.
On-site look at the system, ductwork, electrical service and the house itself. A Manual J load calculation to ACCA standards. A written quote with your equipment options and the total price, with no high-pressure sales.
Mechanical permits filed with the parish or town, and the rough-in and final inspections scheduled with the inspector. Permit fees are in the quote.
Daikin equipment, picked for the load calculation and your budget. We’re a Daikin Premium Partner. Matched outdoor and indoor units only, with the AHRI certificate in your file.
Installed by Xero DMG under Louisiana Commercial Mechanical license CL.08880. All refrigerant work by EPA Section 608 certified technicians. Line set, condensate drain and electrical disconnect to code.
Refrigerant charge checked by superheat or subcooling, static pressure measured, airflow checked at the registers, and the temperature split confirmed against the load calculation.
Load calculation, AHRI certificate, permit numbers, inspection sign-offs, serial numbers for warranty registration and the start-up readings. Ready if you ever sell the house.
Most home installs are done in one day. Permit timing depends on the parish or town; we file it and schedule the inspections for you.
Xero DMG, under Louisiana Commercial Mechanical license CL.08880, with Louisiana Residential Contractor license RL.890700. Refrigerant work is done by EPA Section 608 certified technicians. One contract, one team.
An oversized system short-cycles and leaves the house damp; an undersized one runs nonstop and dies early. A Manual J load calculation looks at your windows, insulation, air leaks and the St. Tammany Parish climate. It goes in your project file.
Yes. Gas furnaces, heat pumps and ductless mini-splits, repaired, maintained and installed.
Restoring what
was lost.
Your comfort, your air, your home, back the way it should be.
Tell us what the system is doing. We Answer Day or Night, and we’ll call you back to set a time.
/hvac/A/C & Heating/hvac/ac-repair/A/C Repair/hvac/ac-replacement/Replacement/hvac/clean-check/Clean & Check + Plan/hvac/indoor-air-quality/Air Quality & Ducts
FIELD NOTES · A/C · GUIDEBefore the first cold snap: what to check on your gas furnaceFIELD NOTES · MOLD · ANSWERSMy A/C company said to call a remediation company before they touch the ducts. Why?FIELD NOTES · A/C · ANSWERSRepair or replace a 15 to 20 year old A/C: the honest math
MOLDMold that keeps coming backWATERWater from the air handlerFIRE & SMOKESmoke pulled through the ducts


