Mercer Island Building Permits & Contractor Leads

1,258 indexed permits · 165 active contractors · Mercer Island, Washington.

Not shared leads. Not a marketplace. Every record is a public permit filing you can verify yourself — your competitors aren't handed the same list. One closed job typically covers the whole year. Cancel anytime in one click — no retention call.

“159 building permits were filed in Mercer Island in the last 30 days — recent, verifiable demand a competitor hasn't worked yet.”
Wes Crainshaw, founder of PermitGrab
Mercer Island building permits — key stats
Permits (last 90 days) 516
Active contractors 165
Newest permit 2026-08-02

PermitGrab tracks 165 active contractors who pulled 1,258 building permits in Mercer Island, WA as of 2026-08-02. Permits updated daily.

Up to date · Updated daily • newest record from 1d ago

PermitGrab is a $149/mo subscription that surfaces every Mercer Island building permit, contractor record, and code violation from the official municipal feed within 12-24 hours of filing — used by solar installers, roofers, HVAC contractors, real-estate investors, and insurance restoration teams to acquire leads at the moment a homeowner commits to a project. 14-day free trial below — cancel anytime in one click.

Filter Mercer Island leads by trade: solar · roofing · HVAC · electrical · fire protection · new construction.

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One email a week with the newest Mercer Island building permits — the contractors, addresses, and project values. No credit card, unsubscribe anytime.

Mercer Island building permit activity

Contractors pulled 161 building permits in Mercer Island over the last 30 days — down 12.2% from the prior 30 days. Over 90 days: 516 permits.

Most active contractors (last 6 months)

  1. POTELCO INC — 32 permits
  2. GREENWOOD HEATING &HOME SRVS — 30 permits
  3. GENE JOHNSN PLB HTG CL ELC LLC — 23 permits
  4. WASHINGTON ENERGY SVCS CO LLC — 22 permits
  5. NORTH LAKE ELECTRIC LLC — 19 permits
  6. INFRASOURCE SERVICES LLC — 19 permits
  7. SEATOWN ELECTRIC HTG &AIRLLC — 17 permits
  8. FAST WATER HEATER COMPANY — 11 permits
  9. HD PARTNERS LLC — 11 permits
  10. ADT LLC — 9 permits
1,258
Indexed Permits
165
Active Contractors
38
Property Owners
25
Verified Phones
2026-08-03
Last Updated
Updated today · live from city records
📊 View Mercer Island live permit pulse →
Mercer Island had 161 new building permits filed in the last 30 days, led by 78 electrical, 38 hvac and 31 plumbing.

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All permits

Permit data through 2026-08-02
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1,258 records — permits and code violations sorted by date

Date Type Value Address Details Contractor / Status Save
2026-01-21 Plumbing 2800 60TH AVE SE For the new storm pipe connecting to city CB only TOTAL QUALITY EXPRESS LLS LLC
2026-01-20 HVAC/Mech 4115 78TH AVE SE NSFR ON VACANT LOT
2026-01-20 General Construction 7020 N MERCER WAY Remove 35 Trees - Rplce w/ 57 Trees A PLUS TREE
2026-01-20 General Construction 6024 SE 22ND ST COMPLETE INTERIOR FINISH WORK ON EXPIRED PERMIT 2209-088 MAWER BROTHERS LLC
2026-01-16 General Construction 4802 E MERCER WAY CE26-0018 - INTERIOR REMODEL LNL BUILDS LLC
2026-01-16 General Construction 8480 85TH AVE SE PERMIT TO COMPLETE 2202-257 SCHULTZ MILLER INC
2026-01-14 General Construction 4124 83RD AVE SE INSTALL PATIO & FREE STANDING PATIO COVER PEOPLE COME FIRST CONSTRUCTION GROUP
2026-01-13 Fire Protection 2802 61ST AVE SE Installation of AES Radio GUARDIAN SECURITY SYSTEMS
2026-01-12 Structural 9350 MERCERWOOD DR INSTALL 14 PILES TO STABILIZE FOUNDATION
2026-01-08 General Construction 4236 W MERCER WAY Remove 1 Hazard Tree - Rplc w/ 2 Trees BEAR CREEK TREE WORK
2026-01-08 Structural 8220 SE 59TH ST UNDERPINNING & STABILIZATION OF FOUNDATION GROUNDWORKS WASHINGTON LLC
2026-01-06 HVAC/Mech 4332 86TH AVE SE DEMO/REBUILD 4718 SQ FT SFR W/697 SF ATTACHED GARAGE EB#5 LLC, None
2026-01-06 General Construction 2707 70TH AVE SE Connecting to city system in ditch
2026-01-06 General Construction 8416 SE 45TH ST Onsite detention system LNL BUILDS LLC
2026-01-05 HVAC/Mech 3246 72ND PL SE DEMO/REBUILD 6193 SQ FT SFR W/648 ATTACHED GARAGE
2025-12-31 General Construction 7905 W MERCER WAY INSTALL BOAT LIFT ×2
2025-12-31 General Construction 2424 74TH AVE SE CONSTUCT DUPLEX
2025-12-31 General Construction 7254 N MERCER WAY LOT LINE REVISION
2025-12-29 Fire Protection 2411 60TH AVE SE NFPA 13D Fire Sprinkler System RAIN CITY FIRE PROTECTION LLC
2025-12-24 HVAC/Mech 2800 60TH AVE SE 1" METER AND SERVICE BRANCH, SUPPLY LINE METER TO HOUSE TBD* TOTAL QUALITY EXPRESS LLS LLC
2025-12-24 General Construction 4860 E MERCER WAY REMOVE 5 TREES - Rplc w/ 11 Trees BALLARD TREE SERVICE
2025-12-24 General Construction 6230 89TH AVE SE Remove 2 Hazard Trees - Rplc w/ 5 Trees TOBIN, TIANNA & CHARLES
2025-12-23 Structural 4609 FOREST AVE SE Underpinning existing foundation & additional stabilization GROUNDWORKS WASHINGTON LLC
2025-12-23 HVAC/Mech 8600 SE 75TH PL REPLACE DECK IN KIND. 13X24' TTL 312 SQ FT ARCHADECK OF SEATTLE EASTSIDE
2025-12-17 Structural 7014 N MERCER WAY Voluntary seismic retrofit to basement & crawlspace SOUND SEISMIC LLC
2025-12-16 General Construction 7671 W MERCER WAY Remove 3 Trees - Rplc w/ 6 Trees BLOOMA TREE EXPERTS
2025-12-16 Roofing 2256 71ST AVE SE NEW UNCOVERED ROOFTOP DECK & STAIR PRECISION HOME SERVICES INC…
2025-12-15 HVAC/Mech 5704 91ST AVE SE RETRO-DECK HAS BEEN REMOVED & REPLACED Remodel Pros LLC - Matthew…
2025-12-11 General Construction 4612 FOREST AVE SE ADDING 384 SQ FT LOUVERED PATIO COVER. STRUXURE OUTDOOR OF WASHINGTON
2025-12-11 General Construction 3801 E MERCER WAY REZONE FROM R TO CO
2025-12-11 General Construction 9206 SE 33RD PL REPAIR DOCK BY SLEEVING 10 PILES & RE-DECKING
2025-12-11 Structural 8275 W MERCER WAY Foundation stabilization & underpinning Groundworks Washington LLC
2025-12-11 General Construction 7922 E MERCER WAY INTERIOR REMODEL MAWER BROTHERS LLC
2025-12-09 HVAC/Mech 7414 78TH AVE SE LOT1-4625SF NSFR ON VACANT LOT W/ 725SF GARAGE
2025-12-08 HVAC/Mech 4170 BOULEVARD PL 1" METER+SERVICE BRANCH, 1.5" SUPPLY LINE METER TO HOUSE METIS CONSTRUCTION
2025-12-08 Roofing 6805 SE 32ND ST REMODEL, 141SF ADDITION, NEW ELEVATIOR, ROOF & DECK GALLAGHER CO., LLC
2025-12-05 General Construction 6855 W MERCER WAY RELOCATE BOAT LIFT & REPAIR DOCK ×2
2025-12-05 HVAC/Mech 7420 78TH AVE SE LOT4 - 4806SF SFR ON VACANT LOT W/ 654SF GARAGE HIGHLANDS BUILDER GROUP
2025-12-04 General Construction 7775 SHORE LN INTERIOR REMODEL SAMGREEN ENGINEERING LLC
2025-12-03 HVAC/Mech 7418 78TH AVE SE LOT3-4236SF NSF ON VACANT LOT W/ 629SF GARAGE
2025-12-03 General Construction 9166 PARKWOOD RIDGE RD INTERIOR REMODEL MERCER BUILDERS, LLC
2025-12-02 General Construction 8487 W MERCER WAY POLE INSTALLATION IN ROW RiverLine Power
2025-11-25 HVAC/Mech 3010 77TH AVE SE REPLACE NON-ILLUMINATED WOOD SIGN W/ALUMINUM SIGN
2025-11-20 Signage 8435 SE 68TH ST INSTALL 24 X 24 X 4 INTERNALLY LED ILLUMINATED SIGN WESTERN NEON, INC.
2025-11-17 HVAC/Mech 4310 ISLAND CREST WAY JOB# P.214846 - REPLACE POLE & TRANSFER SERVICES NORTH SKY COMMUNICATIONS LLC
Page 24 of 26 ← Prev 1 2 23 24 25 26 Next →

Top Contractors

Most active contractors by permit volume — last 90 days of activity shown in parentheses. 7 of 25 have verified phone numbers below.

🆕 New this week
Contractor Permits (90d) Trade Avg Value Contact
1. POTELCO INC 4 permits/30d Active 32 (12) HVAC - Verifying…
2. GREENWOOD HEATING &HOME SRVS 5 permits/30d 30 (10) Electrical - Verifying…
3. GENE JOHNSN PLB HTG CL ELC LLC 3 permits/30d 23 (10) Electrical - Verifying…
4. WASHINGTON ENERGY SVCS CO LLC 9 permits/30d Active 22 (18) Electrical - Verifying…
5. NORTH LAKE ELECTRIC LLC 5 permits/30d Active 19 (13) Electrical - Verifying…
6. INFRASOURCE SERVICES LLC 📞 5 permits/30d 19 (6) Plumbing - 🔒 Reveal
7. SEATOWN ELECTRIC HTG &AIRLLC 4 permits/30d 17 (4) Electrical - Verifying…
8. FAST WATER HEATER COMPANY 3 permits/30d 13 (7) Plumbing - Verifying…
9. ADT LLC 1 permits/30d 9 (6) Electrical - Verifying…
10. EB#5 LLC, None 8 (6) Plumbing - Verifying…
11. LNL BUILDS LLC 8 (2) Plumbing - Verifying…
12. OWNER AS CONTRACTOR 8 (2) Plumbing - Verifying…
13. ADVANCED CONCEPTS LLC 8 (1) Electrical - Verifying…
14. OWNER AS 8 (1) Plumbing - Verifying…
15. SWITCH ELECTRIC LLC 5 permits/30d 7 (6) Electrical - Verifying…
16. RESCUE ROOTER 📞 2 permits/30d 7 (5) HVAC - 🔒 Reveal
17. SOUTH WEST PLMBG &WATER HTRS 7 (4) Electrical - Verifying…
18. BOB'S HEATING &AIR CNDTNG LLC 1 permits/30d 7 (3) HVAC - Verifying…
19. AS YOU WISH ELECTRIC 📞 7 (3) Electrical - 🔒 Reveal
20. HOME COMFORT ALLIANCE LLC 📞 5 permits/30d 6 (5) HVAC - 🔒 Reveal
21. ALWAYS CURRENT ELECTRIC INC 📞 3 permits/30d 6 (5) Electrical - 🔒 Reveal
22. ECO ELECTRIC, PLBG, HTG &AIR 4 permits/30d 6 (4) HVAC - Verifying…
23. PROVIDENT ELECTRIC INC 3 permits/30d 6 (3) Electrical - Verifying…
24. ALLRED HTG COOLING ELEC LLC 📞 6 (3) Electrical - 🔒 Reveal
25. KEMLY ELECTRIC INC 📞 1 permits/30d 6 (2) Electrical - 🔒 Reveal

Viewing 25 of 25 contractors in Mercer Island

See every contractor's phone number, business name, and website in Mercer Island — plus the daily new-permit digest, owner records, and one-click CSV export.

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Permit Types in Mercer Island
Construction Activity in Mercer Island

New building permits in Mercer Island, Washington indicate upcoming construction projects. Contractors can identify subcontracting opportunities by monitoring recently issued permits for residential renovations, commercial buildouts, and new construction. Early outreach to permit holders often results in higher close rates before projects go to competitive bid.

About Mercer Island Building Permits

Mercer Island, Washington processes thousands of building permits covering residential construction, commercial buildouts, renovations, and specialty trade work. PermitGrab tracks 1258+ Mercer Island building permits — updated daily from official city sources.

Every new construction project in Mercer Island requires a building permit before work can begin. These public records include the project address, scope of work, estimated cost, and often the general contractor's name — making them valuable leads for subcontractors looking for new projects in Mercer Island.

How Contractors Use Mercer Island Permit Data

HVAC contractors, electricians, plumbers, and roofers in Mercer Island use building permit data to find projects before they hit traditional lead services. When a new commercial buildout or residential renovation permit is filed, it signals upcoming work that needs subcontractors.

Instead of competing for shared leads on HomeAdvisor or Angi, contractors who monitor Mercer Island building permits can reach out to general contractors the day a permit is issued — before anyone else calls. This first-mover advantage leads to higher close rates and better project selection.

PermitGrab sends daily email alerts filtered by trade, so Mercer Island electrical contractors only see electrical permits, HVAC contractors only see mechanical permits, and so on.

Reviewed by Marcus Reeves · Page data current as of · Sources: official Mercer Island open data portal.

Who pulled permits in Mercer Island this week?

The most active contractors filing in Mercer Island right now include POTELCO INC, GREENWOOD HEATING &HOME SRVS, GENE JOHNSN PLB HTG CL ELC LLC, WASHINGTON ENERGY SVCS CO LLC and NORTH LAKE ELECTRIC LLC. PermitGrab tracks 165 active contractors across the metro, with new filings indexed on every refresh.

How fresh is Mercer Island permit data?

The most recent permit indexed for Mercer Island is dated 2026-08-02. Updated daily • newest record from 1d ago. Permit records carry filing date, address, project value, contractor name (where the source publishes it), and permit type, so a fresh row means a fresh lead.

What construction is happening in Mercer Island right now?

In the last 30 days, Mercer Island permitting activity covers 161 new building permits. The mix spans new construction, residential renovations, mechanical/electrical/plumbing upgrades, roof replacements, demolitions, and tenant improvements — every record is a buying signal for a different contractor or supplier persona.

Three plays that win in Mercer Island

Lists are for mailing. Phones are for closing.

📞

The same-day call

Filter Mercer Island to your trade each morning. Every fresh permit shows the contractor with a verified phone — call the GC to sub, call the owner to upsell the next phase, while competitors are still printing postcards.

🕵️

The competitor watch

Search any competitor's name and see every job they pulled in Mercer Island — where they're working, what they're charging the city in declared value, and which neighborhoods they own. Pitch the follow-on work at each address.

🚨

The motivated-seller list

Code violations matched to property owners. An owner facing a citation is the warmest restoration, repair, or wholesale-offer lead there is — and no marketplace sells this list.

Run these plays in Mercer Island — $149/mo

How to look up Mercer Island building permits

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 and updated as new filings post. 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.

Nearby Washington Cities — explore building permits in other Washington cities

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Who’s Building in Mercer Island?

Property owners with active permits or flagged parcels — with absentee-owner and portfolio-size intel. Great leads for solar, insurance, home-warranty, and renovation vendors.

Property Address Owner Owner Intel Source
15446 BEL RED RD MERCER ISLAND WA C/O*** Absentee owner 51 properties County assessor
10116 MAIN ST MERCER ISLAND WA C/O*** Absentee owner 51 properties County assessor
1333 HARBOR AVE SW MERCER ISLAND WA C/O*** Absentee owner 51 properties County assessor
4025 STONE WAY N MERCER ISLAND WA C/O*** Absentee owner 43 properties County assessor
515 MAYNARD AVE S MERCER ISLAND WA PAU*** Absentee owner County assessor

5+ more property owners

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Frequently Asked Questions about Mercer Island Building Permits

How many building permits does PermitGrab track in Mercer Island?

PermitGrab currently tracks 1258 building permits in Mercer Island, Washington. Data is pulled directly from the official municipal open-data source on every collection cycle and includes permit number, address, permit type, contractor, status, and estimated value where available.

How fresh is the Mercer Island permit data?

PermitGrab collects Mercer Island daily. New permits appear here within 1–3 days of the municipal source publishing them. The count above reflects the complete current record from that source.

How can contractors find construction leads in Mercer Island?

Contractors find leads in Mercer Island by filtering PermitGrab by trade and ZIP code, then contacting the permit applicant (owner or general contractor) directly. Pro subscribers get verified phone numbers and can set up saved-search email alerts so new matches land in their inbox the same day they’re filed.

What’s included in the 14-day trial?

The 14-day trial includes full Pro access to Mercer Island — unlimited phone and website reveals, CSV export, trade and value-tier filters, lead scoring, and violation cross-reference flags. Card required to start; cancel anytime before day 14.

Can I cancel anytime?

Yes. Cancel any time from your account page — no contracts, no cancellation fees. Your subscription stays active through the end of the current billing period.

Who buys this data?

Mercer Island permit & owner data, by use case

Same data, different angle. Pick the playbook that matches what you sell.

Real estate investors
Code violations in Mercer Island = motivated sellers. Out-of-state landlord + active citation = top of the wholesale call list.
Contractors & subs
Every Mercer Island GC who pulled a permit this week is sourcing labor and materials right now. Phone numbers included.
Home service companies
A Mercer Island addition or remodel signals an HVAC, plumbing, or warranty upsell window. Reach owners while the project is fresh.
Solar installers
Roof permits and electrical upgrades in Mercer Island are the highest-intent solar lead signals. Owner-occupant filter built in.
Insurance agents
Mercer Island renovations trigger updated dwelling-coverage limits. Get the address-level signal before the renewal cycle does.
Material suppliers
Lumber, drywall, roofing, fixtures — every Mercer Island permit is a parts list. Build a route by job type and value tier.
Developers & new construction
Ground-up builds in Mercer Island mean a long runway of subcontractor and material orders. Sort new-construction permits by project value and reach the GC before the trades are locked.
Free resources

More on Mercer Island & U.S. construction activity

U.S. Construction Permit Pulse
Our 90-day data report: permit volume by metro, hottest trades, and average project values. Free to read and cite.
Free permit tools
Live permit checker, national pulse dashboard, and a free city-by-city volume lookup — no signup required.
Permit activity badge
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More Washington permit data

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Comparing permit-data tools? See BuildZoom vs Shovels vs PermitGrab (2026) — pricing, coverage, and which fits contractors, suppliers, and developers.

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Mercer Island permits by trade

Mercer Island addition permits Mercer Island concrete & masonry permits Mercer Island demolition permits Mercer Island electrical permits Mercer Island fire protection permits Mercer Island general construction permits Mercer Island hvac permits Mercer Island interior renovation permits Mercer Island landscaping permits Mercer Island new construction permits Mercer Island plumbing permits Mercer Island roofing permits
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