Mercer Island Plumbing Market Overview
Mercer Island's plumbing permit activity is currently slowing, with 21 permits filed in the last 30 days compared to 43 in the prior 30-day window. On average, 32.8 plumbing permits are filed per month here based on the last six months of data. The most active plumbing contractors in Mercer Island include FAST WATER HEATER COMPANY, HD PARTNERS LLC, LNL BUILDS LLC.
Recent Plumbing Permits in Mercer Island
| Date | Address | Description | Status |
|---|---|---|---|
| 2026-09-18 | 5061 84TH AVE SE | SIDESEWER | ACTIVE |
| 2026-09-17 | 1835 W MERCER WAY | SIDESEWER | ACTIVE |
| 2026-09-16 | 5270 FOREST AVE SE | 1 Sink, 1 Dishwasher, 1 Ice Maker | ACTIVE |
| 2026-09-15 | 5646 E MERCER WAY | 1 Water Supply Piping | ACTIVE |
| 2026-09-14 | 2045 80TH AVE SE | SIDESEWER | FINALED |
| 2026-09-11 | 8521 SE 79TH PL | 1 Sink | ACTIVE |
| 2026-09-09 | 8847 SE 59TH ST | SIDESEWER | FINALED |
| 2026-09-04 | 8821 SE 39TH ST | 1 Gas Piping Outlets - Plum | ACTIVE |
| 2026-09-03 | 3727 88TH AVE SE | 1 Water Heater - Gas Mechanical | ACTIVE |
| 2026-09-03 | Address pending | Chem Treatments for Tree Roots in Sewers | ACTIVE |
Choose this market for a free trial to see all Plumbing permits in Mercer Island
Research Mercer Island Plumbing project activity
Access matching plumbing permit records, available public-source details, and alerts when newer records are published.
Choose this market for a free trial →Frequently Asked Questions
How many Plumbing permits were filed in Mercer Island in the last 30 days?
Mercer Island has 21 plumbing permits dated in the last 30 days in the source records currently available on PermitGrab.
What types of Plumbing work require permits in Mercer Island?
In Mercer Island, permits are typically required for plumbing permits including pipe installation, water heater replacement, sewer line repair, and backflow prevention. Always check with Mercer Island's building department for specific requirements.
How can a Plumbing business research project activity in Mercer Island?
Use PermitGrab to review matching plumbing permit records from Mercer Island’s public source. Use the displayed source date, project scope, and available record fields to research published project activity; a permit is not a request for bids.
How quickly are Plumbing permits updated on PermitGrab?
The newest displayed source record is dated 2026-09-18. PermitGrab checks the source on each collection cycle and publishes newer records after the source makes them available.