📍 BAY ST. LOUIS · FURNACE INSTALLATION

Furnace Installation in Bay St. Louis, MS

Right-sized. Properly vented. Warranty-registered. Installed by W-2 techs. 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

FURNACE INSTALLATION IN BAY ST. LOUIS · WHY LOCALS CALL KEITH'S

Right size, proper venting, safe combustion, 10-year manufacturer parts warranty. 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.

Furnace Installation 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:

Furnace over 15 years old and short-cycling
Cracked heat exchanger red-tagged by a tech
Considering a switch from gas to heat pump for lower bills
Adding a system to a new addition or ADU
Recurring CO alarms on old equipment
Rusting cabinet or standing water around furnace

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

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

FURNACE INSTALLATION 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.

Gas Furnace Standard $4,200 to $7,800
Gas Furnace High Eff $7,500 to $10,500
Heat Pump Replacement $5,800 to $12,500
Dual Fuel Hybrid $9,500 to $14,800
Financing Note 0% and low-APR through Service Finance, FTL Finance, Synchrony.

BAY ST. LOUIS FURNACE INSTALLATION
QUESTIONS ANSWERED.

Gas furnace or heat pump for the Coast?

Coast winters are mild enough that heat pumps make strong economic sense. Modern cold-climate heat pumps hold efficiency down to 20°F, well below what we see here. If you already have gas and it's cheap in your area, high-efficiency gas is fine. If electric only, heat pump wins.

How long does install take?

One day for standard replacements. Two days if we're adding ductwork or converting fuel type.

Do you handle the permit?

Yes. We pull permits with the city or county, schedule the inspection, and handle it. You never call the city.

What warranty do I get?

10-year manufacturer parts warranty (we register at install) plus 1-year labor warranty from Keith's.

See Full Furnace Installation 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 · FURNACE INSTALLATION
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!