Updated: Apr 28, 2026
Location and Projects
Address
49 BEECHWOOD AVE, Sudbury, MA, 01776
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Mark R. Gainer Jr Electrician
Mark R. Gainer Jr, 49 Beechwood Ave, Sudbury, MA (Owned by: Malgorzata Staruk) holds a Electrician license and 1 other license according to the Massachusetts license board.
Their BuildZoom score of 95 ranks in the top 22% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mark R. Gainer Jr, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Mark R. Gainer Jr Contact Information
Address: 49 BEECHWOOD AVE, Sudbury, MA 01776
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Mark R. Gainer Jr Sudbury
Quality
95
78th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mark R. Gainer Jr has a BuildZoom score of 95, which places them above 78% of 139,240 contractors in Massachusetts.
Activity
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Mark R. Gainer Jr has worked on at least
2.0 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
|
2 projects
|
< $5k |
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.
Installation of roof mount photovoltaic solar system consisting of 5.55 kw solar array 15 lg 370 watt solar panels 15 enphase micro inverters
Valuation:
$6,085
Permit #:
E-20-292
Status:
complete
Fee:
N/A
Permit Type:
Solar panel/wind ...
Building Type:
Single family
1 aou15rls3h/asu15rls3y 1 aou12rls3h/asu12rls3y 1 aou18rlxfzh 1 asu9rlf1 1 - aru9rlf - including a service upgrade
Valuation:
$4,700
Permit #:
E-20-0147
Status:
final
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
9.45kw solar photovoltaic system using 30 endless energy 315 watt solar panels 30 enphase iq7 micorinverters
Valuation:
$7,767
Permit #:
E-19-1217
Status:
complete
Fee:
$300
Permit Type:
Solar panels - el...
Building Type:
One or two-family...
Roof mounted grid tied photovoltaic solar system - consisting of 26 mudules 315 watt panels and pnphase air conditioning micro inverter 8.1 kwdc 6.5 kwac
Valuation:
N/A
Permit #:
71316
Status:
issued
Fee:
N/A
Permit Type:
Solar array
Building Type:
Single family
Install roof mounted photovoltaic solar system 7.44 kw 24 modules
Valuation:
N/A
Permit #:
E-20-56
Status:
issued
Fee:
$100
Permit Type:
N/A
Building Type:
Single family
4.38 kw solar system 12 lg 365 watt solar panels 12 enphase micro inverters
Valuation:
$4,620
Permit #:
E1027388
Status:
complete
Fee:
$70
Permit Type:
N/A
Building Type:
1-2fam
20 ee 315 watt panels w/microinverters
Valuation:
$7,250
Permit #:
E-20-0077
Status:
final
Fee:
$280
Permit Type:
N/A
Building Type:
N/A
New service meter installation
Valuation:
N/A
Permit #:
20BDOT-00085EL
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New service meter installation
Valuation:
N/A
Permit #:
20BDOT-00084EL
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New service meter installation
Valuation:
N/A
Permit #:
20BDOT-00083EL
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New service meter installation
Valuation:
N/A
Permit #:
20BDOT-00082EL
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New service meter installation
Valuation:
N/A
Permit #:
20BDOT-00081EL
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New service meter installation
Valuation:
N/A
Permit #:
20BDOT-00080EL
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Roof mounted grid tied photovoltaic solar system plus
Valuation:
N/A
Permit #:
72881
Status:
issued
Fee:
N/A
Permit Type:
Service change or...
Building Type:
Single family
Renovation
Valuation:
$3,000
Permit #:
E-24-0060
Status:
issued
Fee:
$55
Permit Type:
N/A
Building Type:
Residential
No Description Available
Valuation:
$15,000
Permit #:
EP-2020-317
Status:
issued
Fee:
$60
Permit Type:
Renovations
Building Type:
N/A
9.45kw solar photovoltaic system using 30 endless energy 315 watt solar panels 30 enphase iq7 micorinverters
Valuation:
$7,767
Permit #:
ELEC19-01217
Status:
final
Fee:
$300
Permit Type:
Solar panels - el...
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
EP-2020-20
Status:
issued
Fee:
$100
Permit Type:
Additional outlet...
Building Type:
N/A
No Description Available
Valuation:
$1,500
Permit #:
REP-23-353
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of ductless air conditioning
Valuation:
N/A
Permit #:
EP-20-239
Status:
complete
Fee:
$150
Permit Type:
Air conditioning
Building Type:
N/A
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BZ Score
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Verified License
BuildZoom confirmed this contractor's license
Mark R. Gainer Jr License info
Verified License
| License # | 20174 |
| Status | Active |
| State | Massachusetts |
| Type | Electrician |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Mark R. Gainer Jr at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 000050931 |
| Status | Inactive |
| City | Newton |
| Type | Electrical Contractor |
- According to the City of Newton Massachusetts, 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 Mark R. Gainer Jr at the City of Newton Massachusetts.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
30
Permits
- Building permit records show that Mark R. Gainer Jr has worked on 30 permitted projects.
Mark R. Gainer Jr Employees
MS
Malgorzata Staruk
Owner
MJ
Mark R Gainer Jr
Owner
MG
Mark R. Gainer
Owner
MG
Mark R. Gainerjr.