📍 BAY ST. LOUIS · HEAT PUMP SERVICE

Heat Pump Service in Bay St. Louis, MS

Coast's most efficient way to heat and cool. We install, service, and warranty every major brand. Serving Bay St. Louis and surrounding Hancock County neighborhoods, same-day, real Keith's tech, no distance surcharge.

Bay St. Louis to Saucier is ~42 minutes. Same-day, every time.

📞 CALL BAY ST. LOUIS · (228) 265-8609
★ 4.9 · 1609 reviews · BBB A+ · MS Mechanical Contractor #R19061 · ZIP: 39520

HEAT PUMP SERVICE IN BAY ST. LOUIS · WHY LOCALS CALL KEITH'S

Repair in one visit. Install in one day. 10-year parts warranty, 1-year labor. That standard applies whether you're in Old Town, Bay-Waveland Beach, or anywhere else in Bay St. Louis.

Bay St. Louis and neighboring Waveland/Diamondhead form the western edge of our service area. Old Town homes are historic with retrofitted HVAC. Diamondhead is a mix of golf-community standard residential and larger estates. Distance-wise it's our farthest regular service area, but we don't charge extra for the drive. Storm rebuild age systems are the primary replacement demand.

Heat Pump Service in Bay St. Louis covers these ZIP codes: 39520. We service homes near Old Town Bay St. Louis, Bay Waveland Yacht Club, Diamondhead, and every neighborhood between.

01 SIGNS · IN YOUR BAY ST. LOUIS HOME

BAY ST. LOUIS HOMEOWNERS
CALL WHEN THEY SEE:

Blowing warm air in cool mode or cool air in heat mode
Ice on the outdoor unit
Auxiliary or emergency heat running constantly
Loud humming or clicking from outdoor unit
System frozen and won't defrost
Bills spiking with no weather change

any of those in Bay St. Louis? call now →

CALL FROM BAY ST. LOUIS · (228) 265-8609

HEAT PUMP SERVICE PRICING
IN BAY ST. LOUIS, MS

Same rates in Bay St. Louis as everywhere else on the Coast. No distance charges, no city-based markup.

Diagnostic $80 flat
Typical Repair $180 to $1,600
Defrost Board $425 to $650
Reversing Valve $850 to $1,600
New Heat Pump Install $5,800 to $12,500

BAY ST. LOUIS HEAT PUMP SERVICE
QUESTIONS ANSWERED.

Why does my heat pump run auxiliary heat so often?

Either the outdoor coil is dirty, the defrost cycle failed, refrigerant is low, or the aux heat is set to kick in too aggressively at the thermostat. We diagnose the actual cause instead of just charging refrigerant.

Do heat pumps work in Mississippi winters?

Perfectly. Modern heat pumps maintain full capacity down to about 25°F and keep working (with auxiliary heat assist) below that. Coast winters rarely test the equipment.

How often should I service my heat pump?

Twice a year: spring cooling tune-up and fall heating tune-up. Both are covered by the Keith's Care Plan at $199.99 annually.

See Full Heat Pump Service Info →

OTHER SERVICES IN BAY ST. LOUIS.

AC Repair in Bay St. Louis → AC Installation in Bay St. Louis → Heating Repair in Bay St. Louis → Mini Split Systems in Bay St. Louis → Commercial HVAC in Bay St. Louis →

BAY ST. LOUIS · HEAT PUMP SERVICE
CALL NOW.

Answered 24/7 · Same-day to Bay St. Louis · No distance surcharge

📞 CALL (228) 265-8609

Bay St. Louis · don't sweat the heat, call keith!