Updated: May 23, 2026
Location and Projects
Address
P O BOX 727, Visalia, CA, 93279
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Proteus HVAC/Mechanical Contractor
Proteus Inc, Visalia, Po Box 727, Visalia, CA (Owned by: Fletcher Timothy Burton) holds a General Building, Warm Air Heating, Ventilating And Air Conditioning, Plumbing license and 3 other licenses according to the California license board.
Their BuildZoom score of 111 ranks in the top 4% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Proteus Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Proteus Inc Contact Information
Phone Number: (559) 651-0800
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Address: P O BOX 727, Visalia, CA 93279
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Proteus Inc Visalia
Quality
111
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Proteus Inc has a BuildZoom score of 111, which places them above 96% of 336,931 contractors in California.
Activity
|
1 project
|
2026 |
|
134 projects
|
2025 |
|
169 projects
|
2024 |
|
152 projects
|
2023 |
Our building permit records indicate that Proteus Inc has worked on at least
456.0 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
|
20 projects
|
Home Additions |
|
271 projects
|
HVAC projects |
|
203 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Proteus Inc mostly works on
hvac project
and mechanical project
projects.
Pricing
|
150 projects
|
< $5k |
|
1 project
|
$5k-$20k |
The typical size of their permits is approximately $1,100. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Water heater - remove existing water heater & replace w/50 gallon heat pump water heater located in garage (condesate line to terminate in drywell side of house 2x2x2) (new dedicated 30 amp circuit for heat pump water heater)
Valuation:
N/A
Permit #:
B251194
Status:
issued
Fee:
N/A
Permit Type:
plumbing - reside...
Building Type:
N/A
Dual pack changeout - remove existing dual pack & replace w/4 ton heat pump dual pack 18 seer 57k btu located on roof; condensate line to be plumbed to existing plumbing stack & new dedicated 30 amp circuit for heat pump
Valuation:
N/A
Permit #:
B251488
Status:
issued
Fee:
N/A
Permit Type:
Mechanical - resi...
Building Type:
N/A
Water heater - remov eexisting water heater ad replace with 50 gal heat pump water heater located in garage condensate line to be plimbed to washing machine drain line (n) dedicated 30a circuit for heat pump wtaer heater
Valuation:
N/A
Permit #:
B251198
Status:
final
Fee:
N/A
Permit Type:
plumbing - reside...
Building Type:
N/A
Remove funnace install mini split - remove existing dual wall furnace & replace w/3 ton heat pump multi mini split sytem 20 seer 36k btus - covered with drywell dedicated 20a circuit for heat pump multi mini split
Valuation:
N/A
Permit #:
B251995
Status:
issued
Fee:
N/A
Permit Type:
Mechanical - resi...
Building Type:
N/A
Dual pack changeout - remove dual pack & replace w/3.5 heat pump dual pack 14 seer 54k btu located on roof (condesate line to be plubmed to existing plumbing stack) new dedicated 30 amp circuit for heat pump dual pack
Valuation:
N/A
Permit #:
B251190
Status:
issued
Fee:
N/A
Permit Type:
Mechanical - resi...
Building Type:
N/A
- remove two existing water heater and replace with two 50 gal heat pump water heathers located in garage & inside closet - both connecting to drain pump to erminate in plumbing stacks (2) dedicated 30a circuits
Valuation:
N/A
Permit #:
B251172
Status:
issued
Fee:
N/A
Permit Type:
plumbing - reside...
Building Type:
N/A
- remove existing water heater and replace with 50 gal heat pump water heater located in garage (condensate line to end in drywell side of house 2x2x2) (new dedicated 30a circuit for heat pump water heater)
Valuation:
N/A
Permit #:
B251410
Status:
issued
Fee:
N/A
Permit Type:
plumbing - reside...
Building Type:
N/A
Dual pack changeout - remove existing dual pack & replace w/2.5 ton heat pump dual pack 14 seer 35k btu located on roof (condensate line to be plumbed to existing pumbing stack) new dedicated 30 amp circuit
Valuation:
N/A
Permit #:
B251197
Status:
issued
Fee:
N/A
Permit Type:
Mechanical - resi...
Building Type:
N/A
Water heater change out - remove existing water heater & replace w/50 gal heat pump water heater located in garage - condensation line to be plumbed to washing machine drain line dedicated 30a circuit
Valuation:
N/A
Permit #:
B251939
Status:
issued
Fee:
N/A
Permit Type:
plumbing - reside...
Building Type:
N/A
Condenser & coil changeout - remove existing fau coil & condenser & replace w/5 ton heat pump split system fau coil & condenser 20 seer 60k btu; condenation line to be plumbed to existing plumbing stack
Valuation:
N/A
Permit #:
B251173
Status:
issued
Fee:
N/A
Permit Type:
Mechanical - resi...
Building Type:
N/A
Water heater - remove existing water heater & replace w/50 gallon heat pump water heater located in garage dedicated 30 amp circuit condensation line to be plumbed to existing plumbing stack
Valuation:
N/A
Permit #:
B252186
Status:
final
Fee:
N/A
Permit Type:
plumbing - reside...
Building Type:
N/A
Water heater change out - remove existing water heater & replace w/50gal heat pump water heater located in exterior closet - condendate line to terminate in drywell dedicated 30a circuit
Valuation:
N/A
Permit #:
B251997
Status:
final
Fee:
N/A
Permit Type:
plumbing - reside...
Building Type:
N/A
- remove existing dual pack & replace w/3 ton heat pump dual pack 14 seer 35k btu located on roof (condensate line to be plumbed to existing pumbing stack) new dedicated 30 amp circuit
Valuation:
N/A
Permit #:
B251409
Status:
issued
Fee:
N/A
Permit Type:
Mechanical - resi...
Building Type:
N/A
Split systems changeout - replace split systems w/two 4 ton heat pump split system 18 seer 40k btus (furnace coil condesner) (2 dedicated 15 amp circuits) condensation lines plumbed to existing condensation line for air handlers
Valuation:
N/A
Permit #:
B253927
Status:
issued
Fee:
N/A
Permit Type:
Mechanical - resi...
Building Type:
N/A
- remove existing water heater and replace with 50 gal heat pump wate heater located in laundry room - condensate line to be plumbed to washing machine drain line (n) 30a circuit
Valuation:
N/A
Permit #:
B251642
Status:
issued
Fee:
N/A
Permit Type:
plumbing - reside...
Building Type:
N/A
- remove existing water heater & replace w/50 gallon heat pump water heater located outide in enclosed closets condensate line to terminate in dry well (n) 30a dedicated circuit
Valuation:
N/A
Permit #:
B251490
Status:
issued
Fee:
N/A
Permit Type:
plumbing - reside...
Building Type:
N/A
Water heater - remove existing water heater & replace w/50 gallon heat pump water heater located in garage (condensation line to terminate in drywell side of home 2x2x2 dedicated 30 amp circuit for heat pump water heater)
Valuation:
N/A
Permit #:
B253173
Status:
final
Fee:
N/A
Permit Type:
plumbing - reside...
Building Type:
N/A
Dual pack heat pump changeout - remove existing dual pack & replace w/3 ton heat pumpdual pack 14 seer 28k btu; condensation line to terminate in existing plumbing stack dedicated 30 amp circuit for heat pump dual pack
Valuation:
N/A
Permit #:
B253172
Status:
issued
Fee:
N/A
Permit Type:
Mechanical - resi...
Building Type:
N/A
Dual pack heat pump changeout - remove existing dual pack & replace w/3 ton heat pumpdual pack 14 seer 28k btu; condensation line to terminate in existing plumbing stack dedicated 30a circuit for heat pump dual pack
Valuation:
N/A
Permit #:
B253175
Status:
issued
Fee:
N/A
Permit Type:
Mechanical - resi...
Building Type:
N/A
Water heater - replace water heater w/65 gallon heat pump water heater located in outside closet (dedicated 30 amp circuit for heat pump water heater condensate line to teminate in drywell 2x2x2 side of home)
Valuation:
N/A
Permit #:
B253697
Status:
final
Fee:
N/A
Permit Type:
plumbing - reside...
Building Type:
N/A
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Proteus Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Proteus Inc License info
Verified License
| License # | 614000 |
| Status | Active |
| State | California |
| Type | General Building, Warm Air Heating, Ventilating And Air Conditioning, Plumbing |
| Business Type | Corporation, Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Proteus Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-F224504-1 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Corporation, Sole Ownership |
- According to the United States Environmental Protection Agency, 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 Proteus Inc at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-55719-2 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Corporation, Sole Ownership |
- According to the United States Environmental Protection Agency, 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 Proteus Inc at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 856964 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation, Sole Ownership |
- According to the California Contractors State License Board, 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 Proteus Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
111
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Security National Insurance Company |
3.9K
Permits
- Building permit records show that Proteus Inc has worked on 3922 permitted projects.
Proteus Inc Employees
CS
Carlos Alberto Sanchez
Rme
CM
Charles Emory Murray
Rme
FB
Fletcher Timothy Burton
Owner
GL
Guadalupe Garza De Leon
Rme
HM
Hector Abraham Argueta Morales
Rmo / Ceo / Pres
JJ
Jose Luis Landeros Jr
Rme
JG
Jose Ricardo Gonzalez
Rme
KB
Kenneth Owen Brown
Rme
MS
Michelle Renee Engel Silva
Ceo / President