Updated: Jan 30, 2026
Location and Projects
Address
1971 VALLEJO STREET, St Helena, CA, 94574
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Mcgrath Builders Construction
Founded in St. Helena, California, Mcgrath Builders has been active in the construction industry for 19 years. Serving clients throughout the Napa Valley, the company specializes in custom home building and residential remodeling. Project portfolios highlight work on single-family homes, including modern updates to kitchens, bathroom renovations, and whole-house remodels. Mcgrath Builders manages every phase of construction—from initial site development and architectural coordination to finish carpentry and fixture installation. Projects often feature locally sourced materials and integrate seamless indoor-outdoor living spaces, a hallmark of Napa Valley residential design. The company’s expertise extends to both new construction and the careful renovation of existing structures, accommodating the needs and style preferences of homeowners in St. Helena and surrounding communities.
Mcgrath Builders Services
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Mcgrath Builders Contact Information
Phone Number: (925) 212-7196
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Address: 1971 VALLEJO STREET, St Helena, CA 94574
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This is a sample of this contractor's permits. Click here to access their complete permit history.
493 sf addition & 1053 sf remodel
Valuation:
N/A
Permit #:
BD2405-020
Status:
final
Fee:
$16,557
Permit Type:
Addition
Building Type:
N/A
Water retrofit of units 1244 1246 & 1248
Valuation:
$750
Permit #:
BD1903-026
Status:
final
Fee:
$85
Permit Type:
Water retrofit fi...
Building Type:
N/A
Move existing electric hot water heater from closet into basement. provide new hook up for new washer/dryer (all electric) in hall closet. install new appliances in kitchen in kind. faucet disposal dishwasher
Valuation:
$0
Permit #:
PP20160805854
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
120 sq foot addition and remodel per plans 4-5-13--revision- addition 44 sq ft to enlarge kitchen and 10 sq ft to garage 1/27/14 - revision - installation of radiant heating throughout the 1st floor per plans and revised title 24/mb
Valuation:
N/A
Permit #:
BIAD13-001896
Status:
final
Fee:
$6,156
Permit Type:
N/A
Building Type:
N/A
1st floor - unit 1 : 12 lights 7 switches 17 receptacles 1 fan 1 dishwasher 1 garbage disposal 1 microwave 1 range 2 smoke detectors; services no. & size: 15 + 20; panelboard/siwtches no. & sizes: 60a 8 circuits
Valuation:
$0
Permit #:
E201407111093
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Hall closet & kitchen. 8 circuits. 40 amp 20 amp 15 amp. panelboards/switchboards. install 3 switches 10 receptacles 1 fan 1 dishwasher 1 microwave 1 range
Valuation:
$0
Permit #:
E201608058794
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel @ 2nd floor subpanel @ gro floor - 70 amp 1 sub panel 5 - 7 circuits 2 lights 4 switches 14 receptacles 1 dishwasher 1 garbage disposal 1 microwave 1 range 1 smoke detectors
Valuation:
$0
Permit #:
E201509081319
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Water conserving fixtures
Valuation:
$750
Permit #:
BD1903-028
Status:
final
Fee:
$85
Permit Type:
Water retrofit fi...
Building Type:
N/A
Water conserving fixtures
Valuation:
$750
Permit #:
BD1903-027
Status:
final
Fee:
$85
Permit Type:
Water retrofit fi...
Building Type:
N/A
Rewire kitchen addition sub panel 7 lights 10 receptacles 1 fan 1 dishwasher 1 garbage disposal 1 microwave 1 range 2 smoke detectors
Valuation:
$0
Permit #:
E20161005209
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new sub panel for new circuits in kitchen & bathroom in kind 1 lights 8 switches 15 receptacles 1 fan 1 dishwasher 1 garbage disposal 1 microwave 1 range 2 smoke detectors
Valuation:
$0
Permit #:
E201601114049
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
3 switches 1 fan 1 dishwasher 1 garbage disposal 1 microwave 1 range 8 circuits; panelboard/switchboard no. & sizes: 100 amp; service no. & sizes: 100 amp
Valuation:
$0
Permit #:
E201503177077
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit 3 3/f rewire entire unit addition new subpanel 11 circuits 17 lights 9 switches 25 receptables 1 fan 1 dishwasher 1 garbage disposal 1 microwave 1 range 2 smoke detectors
Valuation:
$0
Permit #:
E201308223109
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit #2. rewire the entire house. install 11 circuits 1 60amp panelboards. 17 lights 9 switches 25 receptacles 1 fan 1 dishwasher 1 garbage disposal 1 microwave 1 range and 2 smoke detectors
Valuation:
$0
Permit #:
E201307102025
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit 102: 2/f: 60amp subpanel 9 ckts 9 lights 4 switches 6 receptacles 1 fan 1 dishwasher 1 disposal 1 microwave 1 range 2 smoke detector
Valuation:
$0
Permit #:
E201405159698
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install shower valve drain faucets toilet kitchen sink icemaker gas stove faucet dishwasher disposal washer dryer hook up shower pan
Valuation:
$0
Permit #:
PP20160111919
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1st floor: remodel bathroom in kind sink toilet bathroom tub. remodel kitchen - replace sink stove dishwasher disposal. addition ice maker
Valuation:
$0
Permit #:
PP20140711263
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel disposabal ice maker sink dishwahser tankless water heater
Valuation:
$0
Permit #:
PP20161005532
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Lary room bedroom & closet: 5-7 ckts 17 lights 7 switchyes 18 receptacles 3 fans 2 smoke detectors
Valuation:
$0
Permit #:
E201505058335
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel. install 4 circuits 4 lights 3 switches 8 receptacles 1 fan 1 dishwasher 1 garbage disposal 1 microwave 1 range and 1 smoke detectors
Valuation:
$0
Permit #:
E201307102023
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Projects
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Mcgrath Builders License info
Verified License
| License # | 639282 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Mcgrath Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
98
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
22
Permits
- Building permit records show that Mcgrath Builders has worked on 22 permitted projects.
Mcgrath Builders Employees
JG
Joseph Charles Mc Grath
Owner