Get the condition documented
Note where it shows up, when it started, any connection to weather or humidity, how it's progressed, and what's already been done. A few photos and basic measurements make the first call more productive.
Read the local context
Which Savannah the property sits in decides this job before any product is compared. Inside the Landmark District, masonry and wood-frame buildings hold original sash in openings that are rarely standard sizes, and the decision itself may be reviewable rather than yours. Mid-century inland neighborhoods are the straightforward case, typically aluminum or early insulated units where the frame is the weak point. Stilted barrier-island houses face the highest wind exposure in the area. The suburbs toward Pooler and Richmond Hill are a maintenance question rather than a replacement one.
Ask what's about to disappear behind finish work
Install method, flashing, sill condition, frame material, glazing package, trim restoration, and sun and salt exposure on that wall matter as much as the window itself. That should be spelled out in the scope before humidity and finish work hide it for good.
Weigh the full scope, not the sticker price
Look for coverage of protection, access, materials, permitting, testing, cleanup, restoration, exclusions, warranty terms, and change-order pricing.
What official local sources add
One of these records reaches this trade hard and the other not at all. The Landmark District, still organized on the 1733 square-and-ward plan, is among the strictest review environments in the country, and windows are the element it examines most closely -- sash configuration, muntin pattern, material and profile can all be governed, and there may be an expectation that original units are repaired rather than replaced. That is settled by address. The separated stormwater system concerns where runoff goes and has no bearing on an opening in a wall.
Sources were reviewed June 20, 2026. Flood exposure, historic-district status, and permit requirements shift from parcel to parcel in a coastal city like this one, so confirm current rules with the City of Savannah before authorizing any work.