Updated: Oct 21, 2025
Location and Projects
Address
5036 Commercial Cir, Concord, CA, 94520
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Guillermo Montes Construction
Guillermo Montes at 5036 Commercial Cir, Concord, CA 94520, has a BuildZoom score of 100 and ranks in the top 13% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Guillermo Montes Services
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Guillermo Montes Contact Information
Phone Number: (925) 676-1080
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Address: 5036 Commercial Cir, Concord, CA 94520
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Guillermo Montes Concord
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Guillermo Montes has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.
Activity
|
3 projects
|
2025 |
|
1 project
|
2024 |
|
3 projects
|
2023 |
Our building permit records indicate that Guillermo Montes has worked on at least
7.0 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.
Pricing
|
1 project
|
< $5k |
|
2 projects
|
$5k-$20k |
|
1 project
|
$100k-$250k |
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.
2 story addition of 1 079sqft to (e) single family dwelling and remodel of 92sqft
Valuation:
$241,900
Permit #:
BLD-24-01788
Status:
issued
Fee:
$14,223
Permit Type:
N/A
Building Type:
N/A
Renew and complete all permits related to pc#07-827 and bp#085-08 and bp#575-08 and bp#1636-08 and bp#1684-09 and bp#1685-09 and fir-10-00107
Valuation:
N/A
Permit #:
BLD-24-01376
Status:
complete
Fee:
$354
Permit Type:
N/A
Building Type:
N/A
2nd story addition 1 079 sqft remodel of hallway 92 sqft and 80 sqft re-framing
Valuation:
N/A
Permit #:
BLD-24-01350
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Main panel replacement like for like 125 amps
Valuation:
N/A
Permit #:
B-EL25-0158
Status:
final
Fee:
$359
Permit Type:
Onl serv panel
Building Type:
N/A
Re-route of the hot and cold-water lines
Valuation:
$7,200
Permit #:
2104-0388
Status:
issued
Fee:
$65
Permit Type:
Water line replac...
Building Type:
N/A
Like for like main panel upgrade 200amp
Valuation:
$5,329
Permit #:
ERES23-0016
Status:
final
Fee:
$92
Permit Type:
Residentl
Building Type:
N/A
Replace up to 40ft of 4-inch sewer pipe from outside main
Valuation:
$6,900
Permit #:
2005-0086
Status:
final
Fee:
$65
Permit Type:
Sewer lateral
Building Type:
N/A
Replace main electrical panel like for like same location
Valuation:
$5,329
Permit #:
ERES22-0652
Status:
issued
Fee:
$92
Permit Type:
Residentl
Building Type:
N/A
Replacement off a 50 gl water heater
Valuation:
N/A
Permit #:
2011-0267
Status:
issued
Fee:
$65
Permit Type:
Water heater - tank
Building Type:
N/A
Water heater replacement 40 gl
Valuation:
N/A
Permit #:
2011-0326
Status:
issued
Fee:
$65
Permit Type:
Water heater - tank
Building Type:
N/A
Water heater replacement 40 gl
Valuation:
N/A
Permit #:
2011-0325
Status:
issued
Fee:
$65
Permit Type:
Water heater - tank
Building Type:
N/A
Water heater replacement 50 gl
Valuation:
N/A
Permit #:
2011-0324
Status:
issued
Fee:
$65
Permit Type:
Water heater - tank
Building Type:
N/A
Water heater replacement 40 gl
Valuation:
N/A
Permit #:
2011-0321
Status:
issued
Fee:
$65
Permit Type:
Water heater - tank
Building Type:
N/A
Main panel
Valuation:
N/A
Permit #:
23-2349
Status:
final
Fee:
$314
Permit Type:
Service upgrade
Building Type:
N/A
Water heater replacement 40 gl
Valuation:
N/A
Permit #:
2012-0091
Status:
issued
Fee:
$65
Permit Type:
Water heater - tank
Building Type:
N/A
Main panel upgrade like for like 400amp same location
Valuation:
$2,500
Permit #:
BLD25-0516
Status:
issued
Fee:
$279
Permit Type:
Main service or s...
Building Type:
N/A
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Guillermo Montes Reviews
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Recent Buildzoom Projects
Guillermo Montes License info
License Not Required
| Status | Not Required |
- BuildZoom verified in December, 2020 that this contractor does not need a license to be a contractor in California.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
14
Permits
- Building permit records show that Guillermo Montes has worked on 14 permitted projects.