Updated: Jun 12, 2026
Location and Projects
Address
P O BOX 1701, Loomis, CA, 95650
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Cosgrove Custom Pools Inc
Cosgrove Custom Pools Inc, Loomis, Po Box 1701, Loomis, CA (Employee: Mason Lynn Cosgrove) holds a Swimming Pool license according to the California license board.
Their BuildZoom score of 107 ranks in the top 6% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Cosgrove Custom Pools Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Cosgrove Custom Pools Inc Services
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Cosgrove Custom Pools Inc Contact Information
Phone Number: (530) 305-2608
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Address: P O BOX 1701, Loomis, CA 95650
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Cosgrove Custom Pools Inc Loomis
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Cosgrove Custom Pools Inc has a BuildZoom score of 107, which places them above 94% of 336,931 contractors in California.
Activity
|
5 projects
|
2025 |
|
5 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Cosgrove Custom Pools Inc has worked on at least
12.0 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
|
12 projects
|
Home Additions |
|
11 projects
|
Pool and spa constructions |
Analyzing permits over the last 4 years shows that Cosgrove Custom Pools Inc mostly works on
home addition
and pool and spa construction
projects.
Pricing
|
1 project
|
$50k-$100k |
|
8 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
The typical size of their permits is approximately $136,500. 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 Cosgrove Custom Pools Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2024-03-04
In-ground gunite swimming pool and spa 155 feet of trenching for gas including to future firepit - 1 poly 175 feet of trenching from gas meter to equipment pad - 2 poly
Valuation:
$175,000
Permit #:
BLD24-00991
Status:
issued
Fee:
$737
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2024-10-01
( n) in ground gunite pool and spa 597 sq ft pool 45 sq ft spa trenching 60 l ft electric 265 l ft gas
Valuation:
$265,000
Permit #:
BLD24-05040
Status:
issued
Fee:
$767
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2025-07-07
(n) inground gunite pool 840 sq ft (no spa) electrical: 85 lf gas for fire pit: 313 lf **need specs for fire pit
Valuation:
$143,000
Permit #:
BLD24-07041
Status:
complete
Fee:
$762
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2025-02-06
(n) in ground gunite pool and spa pool - 875 sq ft spa - 54 sq ft trenching electrical - 160 l ft natural gas - 220 l ft
Valuation:
$200,369
Permit #:
BLD24-01344
Status:
complete
Fee:
$739
Permit Type:
Accessory
Building Type:
N/A
Residential swimming pool spa new and repairs
2022-08-03
Remodel existing pool & spa 630 sq.ft. 1) remove and replace all tile and plaster. 2) s;lit drains 3 apart in pool & spa. 3) remove and replace concrete. 4) remove and replace water feature that was originally building out of brick tie steel and shoot gunite per engineering
Valuation:
$55,000
Permit #:
SPCR2021-00577
Status:
complete
Fee:
$987
Permit Type:
Pool or spa repair
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2025-02-18
(n) inground gunite pool & spa pool: 1 791 sf spa: 64 sf electrical: 50 lf gas: 215 lf trenching
Valuation:
$294,000
Permit #:
BLD23-07304
Status:
complete
Fee:
$742
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2024-11-21
In ground gunite swimming pool & spa fire feature trenching for gas 110 sq ft retaining wall to be done by others
Valuation:
$130,000
Permit #:
BLD24-06852
Status:
issued
Fee:
$762
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2025-06-18
(n) in ground gunite pool and spa pool 536 sq ft spa 49 sq ft trenching electrical 135 l ft gas 235 l ft ***ammr for pool fence *** approved by mp 3/11/25
Valuation:
$120,000
Permit #:
BLD24-03771
Status:
complete
Fee:
$918
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions accessory structures pools demolish generators and other
2022-09-29
New gunite swimming pool 510 sq ft concrete decking with bonding grid 306 sq ft 30 of 1 1/4 poly gas line from house stub to new 400k btu pool heater 30 of 80 amp electrical service to pool sub panel from stub at house
Valuation:
$85,000
Permit #:
BLD21-02141
Status:
complete
Fee:
$618
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2025-02-07
( n) in ground gunite pool and spa 514 sq ft pool 49 sq ft spa trenching 45 l ft electrical 100 l ft gas
Valuation:
$100,000
Permit #:
BLD24-04895
Status:
complete
Fee:
$760
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions accessory structures pools demolish generators and other
2021-08-31
Inground gunite pool w heated spa 1134 sf 230 lf of trenching for gas line outdoor kitchen on a seperate permit covered patio and gas stub out permitted under bld20-05893
Valuation:
$142,000
Permit #:
BLD21-05192
Status:
expired
Fee:
$1,018
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions accessory structures pools demolish generators and other
2021-12-12
In ground gunite swimming pool and spa pool: 510 sq ft spa: 49 sq ft 400k btu heater fuel source: lpg trenching: 10 (e) 500 gallon above ground lpg tank
Valuation:
$146,338
Permit #:
BLD21-01795
Status:
complete
Fee:
$618
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2023-05-11
New inground gunite pool pool 705 sf spa 49 sf trenching electrical 140 lf gas 190
Valuation:
$85,000
Permit #:
BLD23-02744
Status:
issued
Fee:
$697
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions accessory structures pools demolish generators and other
2019-06-05
In ground swimming pool with vanishing edge trenching 75 for electrical to equipment pad no heat _____________________________________________________________________ revision - alternate materials design and methods of construction request owner requesting to eliminate the five foot fence barrier around the pool alternative method request - approved pfh 6/5/19
Valuation:
$110,000
Permit #:
BLD19-00701
Status:
complete
Fee:
$712
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2020-01-07
In ground concrete pool no hot tub 68 electrical trench alternate material form approved for 5 no climb fence. lot size over 3 acres waters edge over 100 from all property lines
Valuation:
$67,700
Permit #:
BLD19-04249
Status:
complete
Fee:
$732
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2021-03-23
Swimming pool and spa heated trenching for electrical - 80 propane pulling from propane line in shed
Valuation:
$85,000
Permit #:
BLD19-01114
Status:
complete
Fee:
$590
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions accessory structures pools demolish generators and other
2023-02-21
Install new inground gunite swimming pool: 942 sq ft spa: 38 sq ft with grado
Valuation:
$120,675
Permit #:
BLD21-00909
Status:
complete
Fee:
$748
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions accessory structures pools demolish generators and other
2022-01-04
Install new in ground pool and spa
Valuation:
$111,000
Permit #:
BLD21-00912
Status:
complete
Fee:
$619
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2020-04-03
In ground gunite swimming pool and heated spa 30 retaining separate permit propane separate permit 40ft trenching
Valuation:
$71,000
Permit #:
BLD19-03921
Status:
complete
Fee:
$606
Permit Type:
Accessory
Building Type:
N/A
Residential: full review - additions accessory structures pools demolish generators and other
2020-10-21
In ground gunnite pool 70ft trenching for electrical infinity edge 70 ft elctrical trenched
Valuation:
$80,000
Permit #:
BLD20-00960
Status:
complete
Fee:
$607
Permit Type:
Accessory
Building Type:
N/A
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Cosgrove Custom Pools Inc Reviews
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Cosgrove Custom Pools Inc License info
Verified License
| License # | 1005123 |
| Status | Active |
| State | California |
| Type | Swimming Pool |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Cosgrove Custom Pools Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
37
Permits
- Building permit records show that Cosgrove Custom Pools Inc has worked on 37 permitted projects.
Cosgrove Custom Pools Inc Employees
MC
Mason Lynn Cosgrove
Rmo / Ceo / Pres