1,626 indexed permits · Mercer Island, Washington.
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| Permits (last 90 days) | 600 |
|---|---|
| Contractor names (90 days) | 25 |
| Newest permit | 2026-09-18 |
PermitGrab tracks 1,626 building permits in Mercer Island, WA as of 2026-09-18, including 25 active contractors identified from filings in the last 90 days.
Record recency is based on available filing or issue dates; it does not verify publication time or collection delay.
Newest permit date:
Filter Mercer Island permits by trade: solar · roofing · HVAC · electrical · fire protection · new construction.
One email a week with the newest Mercer Island building permits — contractors, addresses, and project values. Free summary only — no credit card. Pro research tools require a separate 14-day trial with a card. Available fields vary by source. Unsubscribe anytime.
228 building permits were published by this source for Mercer Island in the last 30 days — up 21.9% from the prior 30 days. Over 90 days: 600 permits.
Recent permit records with source-published project details. A named business identifies the recorded project team; it is not a claim that the business is seeking bids.
1,626 permits sorted by date
⇄ Swipe or scroll to see address & contractor
| Date | Type | Value | Address | Contractor / Status | Save |
|---|---|---|---|---|---|
| 2026-09-18 | HVAC/Mech | — | 4816 88TH AVE SE | HOME COMFORT ALLIANCE LLC | |
| 2026-09-18 | HVAC/Mech | — | 4816 88TH AVE SE | HOME COMFORT ALLIANCE LLC | |
| 2026-09-18 | Roofing | — | 8307 SE 41ST ST | VALENTINE ROOFING LLC | |
| 2026-09-18 | Electrical | — | 2933 76TH AVE SE | NORTH LAKE ELECTRIC LLC | |
| 2026-09-18 | Plumbing | — | 5061 84TH AVE SE | HOMESERVICE PLUMBERS LLC | |
| 2026-09-18 | HVAC/Mech | — | 2811 75TH PL SE | INFRASOURCE SERVICES LLC | |
| 2026-09-18 | Plumbing | — | — | DUKE'S ROOT CONTROL, INC. | |
| 2026-09-18 | Plumbing | — | 4350 E MERCER WAY | NORTHERN WATERS INC | |
| 2026-09-18 | HVAC/Mech | — | 6631 E MERCER WAY | WASHINGTON GENERATORS LLC | |
| 2026-09-18 | Electrical | — | 6631 E MERCER WAY | WASHINGTON GENERATORS LLC | |
| 2026-09-18 | HVAC/Mech | — | 6147 92ND AVE SE | WASHINGTON ENERGY SVCS CO LLC | |
| 2026-09-18 | Electrical | — | 6147 92ND AVE SE | WASHINGTON ENERGY SVCS CO LLC | |
| 2026-09-18 | Electrical | — | 2760 76TH AVE SE | KIRBY ELECTRIC, INC | |
| 2026-09-18 | General Construction | — | 4624 E MERCER WAY | — | |
| 2026-09-18 | Plumbing | — | 3212 81ST PL SE | FAST WATER HEATER CO | |
| 2026-09-18 | General Construction | — | 4624 E MERCER WAY | — | |
| 2026-09-18 | Fire Protection | — | 5818 W MERCER WAY | ADVANCED FIRE PROTECTION | |
| 2026-09-18 | Fire Protection | — | 9166 PARKWOOD RIDGE RD | ISLAND SECURITY SYSTEMS INC | |
| 2026-09-18 | General Construction | — | 8438 N MERCER WAY | NIP TUCK REMODELING | |
| 2026-09-18 | General Construction | — | 4515 FERNCROFT RD | KJ RENOVATIONS | |
| 2026-09-17 | General Construction | — | 9209 SE 33RD PL | APLUSTREE | |
| 2026-09-17 | Electrical | — | 8421 SE 68TH ST | APPLIED TELECOMM SYSTEMS | |
| 2026-09-17 | Demolition | — | 2424 74TH AVE SE | LNL BUILDS LLC | |
| 2026-09-17 | General Construction | — | 2424 74TH AVE SE | LNL BUILDS LLC | |
| 2026-09-17 | General Construction | — | 2424 74TH AVE SE | LNL BUILDS LLC | |
| 2026-09-17 | General Construction | — | 7633 SE 27TH ST | CASCADE COMMERCIAL SERVICES, LLC | |
| 2026-09-17 | General Construction | — | 4647 W MERCER WAY | EASTSIDE TREE WORKS LLC | |
| 2026-09-17 | Fire Protection | — | 8244 SE 30TH ST | ISLAND SECURITY SYSTEMS INC | |
| 2026-09-17 | General Construction | — | 2424 74TH AVE SE | LNL BUILDS LLC | |
| 2026-09-17 | Plumbing | — | 2424 74TH AVE SE | LNL BUILDS LLC | |
| 2026-09-17 | Plumbing | — | 2424 74TH AVE SE | LNL BUILDS LLC | |
| 2026-09-17 | General Construction | — | 2424 74TH AVE SE | LNL BUILDS LLC | |
| 2026-09-17 | Plumbing | — | 2424 74TH AVE SE | LNL BUILDS LLC | |
| 2026-09-17 | Electrical | — | 2424 74TH AVE SE | GOGA ELECTRIC LLC | |
| 2026-09-17 | Electrical | — | 2430 76TH AVE SE | COMMERCIAL HARDWARE SERVICES INC. | |
| 2026-09-17 | Electrical | — | 3055 80TH AVE SE | 16D LLC | |
| 2026-09-17 | Plumbing | — | 1835 W MERCER WAY | BEACON PLUMBING &MECHNCAL INC | |
| 2026-09-17 | Electrical | — | 4266 SHORECLUB DR | RENEW ELECTRIC LLC | |
| 2026-09-17 | General Construction | — | 2424 74TH AVE SE | LNL BUILDS LLC | |
| 2026-09-16 | Plumbing | — | 5270 FOREST AVE SE | 3G PLUMBING SOLUTIONS LLC | |
| 2026-09-16 | Fire Protection | — | 2436 74TH AVE SE | ISLAND SECURITY SYSTEMS INC | |
| 2026-09-16 | Fire Protection | — | 2430 74TH AVE SE | ISLAND SECURITY SYSTEMS INC | |
| 2026-09-16 | Fire Protection | — | 2733 62ND AVE SE | ISLAND SECURITY SYSTEMS INC | |
| 2026-09-16 | HVAC/Mech | — | 6500 83RD PL SE | GREENWOOD HEATING &HOME SRVS | |
| 2026-09-15 | Electrical | — | 2933 76TH AVE SE | NORTH LAKE ELECTRIC LLC | |
| 2026-09-15 | Plumbing | — | 5646 E MERCER WAY | DONE RIGHT PLMBG &SWR RPR LLC | |
| 2026-09-15 | General Construction | — | 7950 NORTHBROOK LN | GALLAGHER CO., LLC | |
| 2026-09-15 | General Construction | — | 8904 N MERCER WAY | PETER DAVIS BUILDERS INC | |
| 2026-09-15 | Fire Protection | — | 8661 SE 60TH ST | SIGNATURE AUDIO VIDEO INC | |
| 2026-09-15 | General Construction | — | 2630 77TH AVE SE | REFINO SERVICES LLC |
Businesses most frequently named in permit records — last 90 days of activity shown in parentheses. Source-published contact details are available for 10 of 25 businesses below.
| Recorded business | Permits (90d) | Contact |
|---|---|---|
| 1. POTELCO INC 6 permits/30d Active | 34 (14) | — |
| 2. GREENWOOD HEATING &HOME SRVS 6 permits/30d Active | 31 (11) | — |
| 3. GENE JOHNSN PLB HTG CL ELC LLC | 23 (10) | 🔒 Reveal |
| 4. WASHINGTON ENERGY SVCS CO LLC 6 permits/30d Active | 22 (18) | — |
| 5. INFRASOURCE SERVICES LLC 4 permits/30d | 20 (7) | 🔒 Reveal |
| 6. NORTH LAKE ELECTRIC LLC 2 permits/30d Active | 19 (13) | 🔒 Reveal |
| 7. SEATOWN ELECTRIC HTG &AIRLLC 4 permits/30d | 18 (5) | — |
| 8. FAST WATER HEATER COMPANY 4 permits/30d | 14 (8) | — |
| 9. ADT LLC 1 permits/30d | 9 (6) | — |
| 10. AS YOU WISH ELECTRIC 2 permits/30d | 9 (5) | 🔒 Reveal |
| 11. ADVANCED CONCEPTS LLC 1 permits/30d | 9 (2) | — |
| 12. EB#5 LLC, None | 8 (6) | — |
| 13. LNL BUILDS LLC | 8 (2) | Website |
| 14. SWITCH ELECTRIC LLC 5 permits/30d | 7 (6) | — |
| 15. PROVIDENT ELECTRIC INC 3 permits/30d | 7 (4) | — |
| 16. SOUTH WEST PLMBG &WATER HTRS | 7 (4) | — |
| 17. BOB'S HEATING &AIR CNDTNG LLC 1 permits/30d | 7 (3) | — |
| 18. HOME COMFORT ALLIANCE LLC 2 permits/30d | 6 (5) | 🔒 Reveal |
| 19. ALWAYS CURRENT ELECTRIC INC 2 permits/30d | 6 (5) | 🔒 Reveal |
| 20. ECO ELECTRIC, PLBG, HTG &AIR 2 permits/30d | 6 (4) | — |
| 21. WASHINGTON GENERATORS LLC 2 permits/30d | 6 (4) | — |
| 22. KEMLY ELECTRIC INC 1 permits/30d | 6 (2) | 🔒 Reveal |
| 23. HOMESERVICE PLUMBERS LLC 1 permits/30d | 6 (1) | 🔒 Reveal |
| 24. ROTO ROOTER SERVICES CO 2 permits/30d | 5 (4) | — |
| 25. BETTER AIR NW HEATING/CLNG LLC 1 permits/30d | 5 (3) | 🔒 Reveal |
Use project scope, address, date, and source-published business or owner fields to research relevant work before outreach. Available contact fields, alerts when new public records are available, owner records, and CSV export vary by public source.
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New building permits in Mercer Island, Washington show where construction activity is being recorded. Contractors can filter the available public records by trade, date, address, and project value to research projects and plan outreach using the fields the source publishes.
Mercer Island, Washington processes building permits covering residential construction, commercial buildouts, renovations, and specialty trade work. PermitGrab tracks 1626+ Mercer Island building permits — newest permit date: 2026-09-18 from official city sources.
Building permits in Mercer Island can document new construction, renovations, and specialty work. The fields in a public record vary by filing, but may include a project address, scope, estimated cost, or contractor name. Use the displayed source information to evaluate whether a record is useful for your market research.
HVAC contractors, electricians, plumbers, and roofers can use Mercer Island building-permit records to research visible construction activity. A permit may signal a project that is relevant to a particular trade, but the source record does not establish that its owner is seeking a bid.
Use the published date, project details, and any named business contact to research a project before outreach. Public records are not exclusive, and outreach results depend on the market, project, and your own process.
Eligible subscribers can receive trade-filtered alerts when new records are collected. Alert timing and field coverage follow the underlying source rather than a universal schedule.
PermitGrab methodology · Page data current as of · Source: Mercer Island WA building permits (MyBuildingPermit.com regional portal).
The contractors most frequently represented in the available Mercer Island records include POTELCO INC, GREENWOOD HEATING &HOME SRVS, GENE JOHNSN PLB HTG CL ELC LLC, WASHINGTON ENERGY SVCS CO LLC and INFRASOURCE SERVICES LLC. PermitGrab tracks 25 active contractors across the metro. New records appear as they are available from the source.
The most recent permit indexed for Mercer Island is dated 2026-09-18. Newest permit date: 2026-09-18. Permit records carry filing date, address, project value, and permit type, plus contractor name where the source publishes it. Use a recent published record for project research; it does not show bid availability or a request for service.
In the last 30 days, Mercer Island permitting activity covers 228 new building permits. The records can cover new construction, residential renovations, mechanical/electrical/plumbing upgrades, roof replacements, demolitions, or tenant improvements. Their usefulness for a contractor or supplier depends on the published project details, timing, and service area.
Filter Mercer Island to your trade and review the source date before researching a project. Business contact details appear only for covered profiles where the relevant source supports them.
Search a business name to review its recorded permit activity in Mercer Island and the project details the public source publishes. Use the scope, timing, and address to research complementary work; a record is not a request for bids.
Search recent Mercer Island, WA building permits by address, contractor, and permit type in the table above — pulled from the Mercer Island building department's public permit records. New filings appear here as they are published. Filter by trade or search an address to look up a specific permit. For this week's filing volume and the most active contractors, see the Mercer Island Permit Pulse.
Email alerts when new public records are available for newly published permits and recorded project-team activity. Business phone and website details are available for covered profiles. 14-day Pro trial for alerts — card required; Pro $149/mo unlocks full available records.
PermitGrab currently tracks 1626 building permits in Mercer Island, Washington. Data is pulled directly from the official municipal source on every collection cycle and includes permit number, address, permit type, status, estimated value, and contractor information where the source publishes it.
PermitGrab checks the official source on each collection cycle. The source date and its observed update cadence are shown above, so you can judge the data’s recency before acting on it.
Contractors find leads in Mercer Island by filtering PermitGrab by trade and ZIP code, then researching the recorded contractor and project activity. Pro subscribers can reveal source-published contact details for covered business profiles and set up saved-search email alerts so new matches land in their inbox as records are published.
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