### Raised Spa Area (Flagstone and Spillover)
The raised spa features flagstone surfacing that appears to have been updated within the past five years or less. The spa plaster may have also been refreshed during this time. The mortar and joints were redone with a fairly decent level of workmanship.
However, there are visible issues at the spillover stones and likely throughout the face of the flagstone. Water loss is occurring through the flagstone surface, beginning at the spillover area and migrating to other sections. White calcium deposits are forming on corners of the spillover stones that are not in direct contact with water from the spillover process.
**Recommended Approach & Estimated Cost:**
Waterproofing the spillover area alone is estimated at **less than $2,000**. However, it would be wise to address the **entire spa stonework** in one complete pass to ensure thorough waterproofing, especially since surface issues are already present in the spa. Doing the full scope at once avoids repeated disruption and provides better long-term results.
- **Entire outside spa stonework:** $2,000 – $5,000 (standard repair)
- **Up to $10,000** if material changes or other design modifications are incorporated.
### Waterline Tile
The waterline tile is in relatively fair to good condition overall. No major issues were observed. Even inside the skimmer throat, the mortar between the tile and skimmer connection shows minimal wear. The waterline tile does not require attention at this time.
### Coping / Decking
There are a few very small cracks (less than dime-width) visible, specifically two on the west side. These appear to be minor and are likely related to concrete settling. They do not extend further into the surface below, so no immediate repairs are needed.
### West Raised Wall (Waterfalls & Water Features)
This wall supports one waterfall and two water features. Calcium deposits are visible in approximately four locations on the backside (north-facing) wall. Several tiles sound hollow when tapped — particularly closer to the west side and along the north top edge — indicating water migration behind the tile. This is a common issue with waterfall features after 20+ years of use.
These areas should be addressed together with the spa repairs (when the tile work in the spa is opened up), as the issues are likely related to the same water migration. Addressing them separately would likely increase the total cost.
**Estimated Cost (if done at the time of spa repairs):** $2,000 – $4,000.
Doing this work independently would probably cost more.
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**Summary of Estimated Costs (when coordinated together):**
- Spa spillover waterproofing only: **<$2,000**
- Full spa stonework: **$2,000 – $5,000** (up to $10,000 with material/design changes)
- North raised wall / waterfall repairs: **$2,000 – $4,000**
Coordinating the spa stonework and the north waterfall raised wall repairs together during the same project is strongly recommended for best results and cost efficiency.
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