Updated: Jul 08, 2026
Location and Projects
Address
815 29Th Ave S, Seattle, WA, 98144
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Energy Efficient Systems HVAC/Mechanical Contractor
Energy Efficient Systems LLC, 815-29 Th Ave S, Seattle, WA (Owned by: Overall, John Lewis) holds a Construction Contractor, Heating/Vent/Air Conditioning And Refrig (Hvac/R) license and 4 other licenses according to the Tukwila license board.
Their BuildZoom score of 107 ranks in the top 6% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Energy Efficient Systems LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Energy Efficient Systems LLC Contact Information
Phone Number: (206) 573-0968
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Address: 815 29Th Ave S, Seattle, WA 98144
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Energy Efficient Systems LLC Seattle
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Energy Efficient Systems LLC has a BuildZoom score of 107, which places them above 94% of 128,670 contractors in Washington.
Activity
|
3 projects
|
2025 |
|
5 projects
|
2024 |
|
7 projects
|
2023 |
Our building permit records indicate that Energy Efficient Systems LLC has worked on at least
15.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
4 projects
|
New Constructions |
|
7 projects
|
Mechanical projects |
|
6 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Energy Efficient Systems LLC mostly works on
mechanical project
and hvac project
projects.
Pricing
|
2 projects
|
< $5k |
|
3 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
1 project
|
$50k-$100k |
The typical size of their permits is approximately $7,672. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Energy Efficient Systems LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Type: mechanical single family class: addition to structure lavadia & pawloski (bsf23-05595): install mitsubishi equipment outdoor unit. outdoor unit will be behind new addition of house
Valuation:
N/A
Permit #:
MSF24-03398
Status:
issued
Fee:
$72
Permit Type:
N/A
Building Type:
N/A
Emergency heat system install hyperheat minisplit heatpumps to thirteen rooms (one office and twelve rooms originally designed as classrooms) with cooling locked out (heat only) per plans
Valuation:
$106,300
Permit #:
6881833-ME
Status:
issued
Fee:
$3,280
Permit Type:
N/A
Building Type:
Commercial
Jaspen mechanical a (single family residential) (alteration) project involving 1 gas piping outlets - mechanical exterior
Valuation:
N/A
Permit #:
MEC25-00304
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
N/A
* install two rooftop units (rtu1 rtu2) one air conditioning condenser (cond1) one exhaust fan (ef1) one mini-split (ac1) gas piping and ducting per plans and equipment schedule. plans include equipment schedule load calculations and ducting layouts) [* reapplication from 9/14/20 application (839676) #20 114298 bl] 19 107075 bb
Valuation:
N/A
Permit #:
20 122377 BL
Status:
final
Fee:
$4,703
Permit Type:
N/A
Building Type:
N/A
A single family residential addition to existing structure none project involving (1 fireplace insert - gas 1 gas piping only (no fixtures))
Valuation:
N/A
Permit #:
22 104971 BK
Status:
final
Fee:
$96
Permit Type:
N/A
Building Type:
N/A
Replace existing furnace with new contractor: energy efficient system llc 815 29th ave s seattle wa 98144 206-396-5401 contact: john overall contractor registration: energes843q9
Valuation:
$12,500
Permit #:
MECHR23-1700
Status:
final
Fee:
$393
Permit Type:
N/A
Building Type:
N/A
Bush coleman minisplit install single outdoor unit three zones inverter driven minisplit system (two heads on main floor and ducted minisplit into upstairs attic) - sized to minimum out at 31300 btu out (range 31, 300 to 66, 000)
Valuation:
$12,000
Permit #:
6801990-FR
Status:
issued
Fee:
$148
Permit Type:
N/A
Building Type:
Single family/duplex
Gia seattle split system - main install residential split system into residence with air handler with wall units
Valuation:
$27,000
Permit #:
6926198-FR
Status:
complete
Fee:
$79
Permit Type:
N/A
Building Type:
Single family/duplex
Ezra teshhome heatpumps install inverter driven multizone heatpump systems to residential property
Valuation:
$50,715
Permit #:
6907217-FR
Status:
issued
Fee:
$750
Permit Type:
N/A
Building Type:
Single family/duplex
Taylor furnace install gas furnace/air handler with air conditioning coil (ac only heatpump) into crawlspace
Valuation:
$14,333
Permit #:
6938229-FR
Status:
issued
Fee:
$79
Permit Type:
N/A
Building Type:
Single family/duplex
Mlk fame install supplemental gas heating units into multi use assembly space (auditorium and stage) to reduce energy consumption of oil fuel multizone boiler will use existing ventilation system with existing outside air provision for ventilation per plans
Valuation:
$7,000
Permit #:
6709738-ME
Status:
issued
Fee:
$693
Permit Type:
N/A
Building Type:
Commercial
Mati bot minisplit system install multiple head minisplit system into residence (four indoor units)
Valuation:
$14,700
Permit #:
6918216-FR
Status:
issued
Fee:
$79
Permit Type:
N/A
Building Type:
Single family/duplex
A single family residential alteration to existing structure none project involving (1 barbecue 1 logs)
Valuation:
N/A
Permit #:
22 104326 BK
Status:
issued
Fee:
$107
Permit Type:
N/A
Building Type:
N/A
A single family residential alteration to existing structure none project involving (1 barbecue 1 log lighter 1 gas piping only (no fixtures))
Valuation:
N/A
Permit #:
21 108326 BK
Status:
issued
Fee:
$145
Permit Type:
N/A
Building Type:
N/A
Gia seattle llc unit b aadu - install four head minisplit system into residence unit b
Valuation:
$20,000
Permit #:
6926199-FR
Status:
complete
Fee:
$79
Permit Type:
N/A
Building Type:
Single family/duplex
Kirova project furnace replace furnace in residence
Valuation:
$20,800
Permit #:
6950509-FR
Status:
complete
Fee:
$56
Permit Type:
N/A
Building Type:
Single family/duplex
Karen bell minisplit system install four head minisplit system into residence
Valuation:
$16,000
Permit #:
6916488-FR
Status:
complete
Fee:
$79
Permit Type:
N/A
Building Type:
Single family/duplex
A single family residential new structure none project involving (1 furnace
Valuation:
N/A
Permit #:
24 103748 BK
Status:
final
Fee:
$126
Permit Type:
N/A
Building Type:
N/A
Gia seattle llc unit c dadu - install minisplit into residential unit c
Valuation:
$20,000
Permit #:
6926200-FR
Status:
complete
Fee:
$79
Permit Type:
N/A
Building Type:
Single family/duplex
Ezra teshome project install two heat pumps with indoor multizone units
Valuation:
$51,000
Permit #:
6983882-FR
Status:
complete
Fee:
$112
Permit Type:
N/A
Building Type:
Single family/duplex
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Verified License
BuildZoom confirmed this contractor's license
Energy Efficient Systems LLC License info
Verified License
| License # | ENERGES843Q9 |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, Heating/Vent/Air Conditioning And Refrig (Hvac/R) |
| Class | Limited Liability Company |
| Business Type | Individual, Limited Liability Company |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Energy Efficient Systems LLC at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | ENERGES843Q9 |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual, Limited Liability Company |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Energy Efficient Systems LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | ENERGES924KN |
| Status | Inactive |
| City | Sammamish |
| Type | Contractor |
| Business Type | Individual, Limited Liability Company |
- According to the The City of Sammamish, WA, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Energy Efficient Systems LLC at the The City of Sammamish, WA.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | ENERGES924KN |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual, Limited Liability Company |
- According to the Washington State Department of Labor & Industries, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Energy Efficient Systems LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | ENERGES853BH |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual, Limited Liability Company |
- According to the Washington State Department of Labor & Industries, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Energy Efficient Systems LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
Insured
| Insurer | Ohio Security Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Contractors Bonding & Insurance Co |
| Bond Value | $6,000 |
139
Permits
- Building permit records show that Energy Efficient Systems LLC has worked on 139 permitted projects.
Energy Efficient Systems LLC Employees
CO
Corey Overall
Partner/Member
EO
Emanuel Overall
Partner/Member
JO
Jobon Overall
Partner/Member
JO
John Overall
Partner/Member
KP
Kris Pedrin
Partner/Member
NH
Najah Hull
Partner/Member
OL
Overall, John Lewis
Owner