No. Cobb County-Marietta Water Authority delivers naturally soft water at around 2.2 grains per gallon (38 mg/L), which is well below the threshold where softening does anything useful. Any contractor pushing a water softener on a Marietta address without first showing you the test results isn't being straight with you. Where Fulton-side homeowners deal with scale buildup on water heater elements and shortened equipment life, Marietta homeowners usually don't.

No, not in any meaningful way. Cobb's soft water means evaporator coil and condensate system service in Marietta focuses on pollen and humidity load, not scale. Annual coil cleaning during pollen season (February through May) and condensate drain maintenance matter more here than scale prevention.

Marietta addresses inside city limits pull permits through City of Marietta planning. Marietta postal addresses that fall in unincorporated Cobb County pull through Cobb County Community Development. The school zone usually gives it away: Walton, Pope, Lassiter, and Wheeler attendance areas are almost always unincorporated Cobb rather than the city. We confirm which one applies before pulling permits.

Often yes, at least in sections. Original 1960s ductwork in Marietta was sized for the original system's airflow and wasn't designed for modern variable-speed equipment. The bigger issue is leakage: most original ductwork of this era leaks 20 to 30% in attics and crawl spaces, which means you're paying to cool air that never makes it to the rooms. We test how much your ducts leak as part of every replacement quote and tell you straight whether sealing alone will work or whether sections need to come out.

For air-source heat pumps installed in 2026 or later, no. The federal Section 25C credit expired December 31, 2025 under the One Big Beautiful Bill Act. The real savings now come from Georgia's state programs. GEFA's Home Energy Rebates offer up to $16,000 depending on income and energy savings, and Georgia Power's HEIP program offers up to $1,250 in home comfort bundle rebates plus a $1,000 instant rebate on heat pump water heaters. Geothermal still qualifies for the 30% federal credit under Section 25D through 2032.

Three things determine the answer. First, what refrigerant does it use? If it's R-22 (phased out as of 2020), recharge costs are now sky-high and any major leak repair is throwing money at a dead system. Second, what's your repair history been? Multiple repairs in the last two years usually mean the system is telling you it's done. Third, what's your monthly utility bill compared to similar homes? A 12-year-old single-stage system in this climate is often running 30 to 40% less efficient than a modern variable-speed system, which means replacement can pay back in energy savings within 7 to 10 years.

Sometimes, but not always. Pre-1940 homes in the historic district were built without ductwork in mind, and retrofitting full central air can mean real compromises: dropped ceilings, lost closet space, exterior chase additions some homeowners aren't willing to make. Mini-split solutions often preserve the home's character better while still delivering modern comfort. We look at each home individually rather than defaulting to one approach.