Updated: Jan 20, 2026
Location and Projects
Address
7 Sherman St, Maynard, MA, 01754
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Middlesex Custom Builders Construction
Serving Maynard and the surrounding communities in Massachusetts, Middlesex Custom Builders LLC specializes in residential construction and remodeling projects. The firm has been active for 4 years and focuses on delivering tailored home renovations, additions, and custom builds. Middlesex Custom Builders LLC undertakes a variety of project types, including kitchen and bathroom remodels, whole-home renovations, and property expansions. The company works with homeowners throughout Middlesex County, managing projects from initial design through final construction. Their expertise includes structural updates, interior and exterior renovations, and the integration of modern building materials. Middlesex Custom Builders LLC is experienced in adapting homes to meet changing family needs while maintaining architectural integrity. The company’s portfolio reflects skill in overseeing both small-scale improvements and larger, complex remodels for single-family residences.
Middlesex Custom Builders LLC Services
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Middlesex Custom Builders LLC Contact Information
Phone Number: (978) 476-0336
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Address: 7 Sherman St, Maynard, MA 01754
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Middlesex Custom Builders LLC Maynard
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Middlesex Custom Builders LLC has a BuildZoom score of 101, which places them above 88% of 139,240 contractors in Massachusetts.
Activity
|
5 projects
|
2025 |
|
3 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Middlesex Custom Builders LLC 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
|
4 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Middlesex Custom Builders LLC mostly works on
home addition
projects.
Pricing
|
4 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
|
5 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $46,065. 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.
Middlesex Custom Builders LLC Reviews
5 out of 5 stars, based on
1
review
-
By Alexandra N.January 17, 2022
Building Permits by Middlesex Custom Builders LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Demolish and rebuild existing 2 story deck on rear of house in same footprint using existing footings. deck serves as egress to 4 apartment units maintain egress using scaffolding located at the rear 2 corners of house scaffolding to have stairs and safety rails as needed
Valuation:
$41,240
Permit #:
R-24-0498
Status:
issued
Fee:
$578
Permit Type:
Existing building...
Building Type:
N/A
Remodel and finish 14'x6'6 rear porch addition 16'x8 deck to rear exit addition bay window with hip roof
Valuation:
$38,000
Permit #:
R-25-0111
Status:
issued
Fee:
$456
Permit Type:
Existing building...
Building Type:
N/A
Finish unfinished basement into 16 x 26 playroom and unfinished storage/utility area
Valuation:
$50,890
Permit #:
R-25-0191
Status:
issued
Fee:
$611
Permit Type:
Existing building
Building Type:
N/A
Addition second egress to 1st floor of home exiting kitchen porch into back yard converting window to the door opening
Valuation:
$5,940
Permit #:
R-25-0227
Status:
issued
Fee:
$72
Permit Type:
Alteration(s)
Building Type:
N/A
14x8 mud room addition with front porch and kitchen remodel
Valuation:
$130,018
Permit #:
R-22-0471
Status:
issued
Fee:
$1,561
Permit Type:
Alteration(s) add...
Building Type:
N/A
Redeck 3 front porch decks install new porch post footprint remains the same
Valuation:
$11,380
Permit #:
R-25-0228
Status:
issued
Fee:
$136
Permit Type:
Repair(s)
Building Type:
N/A
Shed dormer added according to plans
Valuation:
$100,450
Permit #:
R-24-0381
Status:
issued
Fee:
$1,206
Permit Type:
Existing building...
Building Type:
N/A
Building front entry landing and stairs over existing deteriorated concrete stairs
Valuation:
$5,000
Permit #:
R-22-0255
Status:
issued
Fee:
$60
Permit Type:
Existing building
Building Type:
N/A
Addition half bathroom to second floor
Valuation:
$17,780
Permit #:
R-23-0097
Status:
issued
Fee:
$214
Permit Type:
Existing building
Building Type:
N/A
Build/replace 12x12 addition off rear of house
Valuation:
$69,890
Permit #:
R-22-0171
Status:
issued
Fee:
$839
Permit Type:
Addition
Building Type:
N/A
Replace homes siding and trim
Valuation:
$52,276
Permit #:
R-24-0161
Status:
issued
Fee:
$628
Permit Type:
Siding
Building Type:
N/A
16'x16 deck with stairs off rear of house
Valuation:
$11,907
Permit #:
R-22-0470
Status:
issued
Fee:
$143
Permit Type:
Deck
Building Type:
N/A
Bathroom and bedroom remodel
Valuation:
$69,488
Permit #:
R-23-0444
Status:
issued
Fee:
$834
Permit Type:
Existing building
Building Type:
N/A
Remodel first and second floor bathrooms remodel kitchen
Valuation:
N/A
Permit #:
BL-23-130
Status:
complete
Fee:
N/A
Permit Type:
Remodel
Building Type:
N/A
New covered porch and deck
Valuation:
$7,460
Permit #:
R-24-0188
Status:
issued
Fee:
$90
Permit Type:
Deck
Building Type:
N/A
Renovation of bathroom
Valuation:
$10,300
Permit #:
BP-22-201
Status:
Issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition staircase from 1st floor mudroom to above garage finish above garage space to create entertainment room
Valuation:
$90,411
Permit #:
23-118RB
Status:
complete
Fee:
$1,127
Permit Type:
N/A
Building Type:
N/A
Demolish exsisting deck and replace
Valuation:
$34,700
Permit #:
22-111RB
Status:
complete
Fee:
$427
Permit Type:
N/A
Building Type:
N/A
Addition bathroom to the existing laundry room
Valuation:
$39,000
Permit #:
R-22-0066
Status:
issued
Fee:
$961
Permit Type:
Existing building...
Building Type:
N/A
Finish walk up attic into office and utility area
Valuation:
$54,920
Permit #:
R-25-0400
Status:
issued
Fee:
$660
Permit Type:
Existing building
Building Type:
N/A
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Projects
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Middlesex Custom Builders LLC License info
Verified License
| License # | 203953 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
| Date Issued | 02-02-2026 |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Middlesex Custom Builders LLC at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
19
Permits
- Building permit records show that Middlesex Custom Builders LLC has worked on 19 permitted projects.
Middlesex Custom Builders LLC Employees
ES
Eric A Sosa
Owner
ES
Eric Sosa
Owner
Middlesex Custom Builders are talented professionals. The owner, Eric, is a master carpenter who is incredibly knowledgeable, creative and easy to work with. When renovating my kitchen, they provided excellent creative solutions, a high level of craftsmanship and were very responsive in answering any questions or concerns. They write up an easily understandable and detailed estimate. The end result was above and beyond anything I could have imagined. I could not be more pleased by my experience working with Middlesex Custom Builders.