Updated: May 27, 2026
Location and Projects
Address
Boston, MA, 02116
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William Sloan Colt Construction
Serving the Boston, MA area, William Sloan Colt specializes in residential construction and remodeling projects. With two years in the industry, the company manages new home builds, home additions, and a range of interior and exterior renovations. Project experience includes kitchen and bathroom remodels, deck construction, and updates to living spaces in Boston’s historic neighborhoods. The operation is led by William Sloan Colt, who oversees projects from initial planning through final completion. The company works closely with homeowners to address local building codes and city permitting requirements, ensuring each project aligns with Boston’s architectural standards. William Sloan Colt has completed multiple permitted projects across the city and has developed a portfolio centered on efficient, code-compliant residential work.
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William Sloan Colt Contact Information
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William Sloan Colt Boston
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
William Sloan Colt has a BuildZoom score of 100, which places them above 87% of 139,240 contractors in Massachusetts.
Activity
|
16 projects
|
2025 |
|
11 projects
|
2024 |
Our building permit records indicate that William Sloan Colt has worked on at least
27.0 projects over the past 2 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
|
12 projects
|
< $5k |
|
15 projects
|
$5k-$20k |
The typical size of their permits is approximately $7,201. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Mass save insulation and air sealing compliant with 780 cmr and brookline zoning by laws
Valuation:
$11,434
Permit #:
BP-2025-000200
Status:
issued
Fee:
$240
Permit Type:
N/A
Building Type:
N/A
Mass save insulation and air sealing all work must comply with 780 cmr & brookline by-laws
Valuation:
$10,477
Permit #:
BP-2025-000025
Status:
issued
Fee:
$220
Permit Type:
N/A
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$11,272
Permit #:
R-25-0479
Status:
issued
Fee:
$144
Permit Type:
Weatherization
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$8,403
Permit #:
R-25-0393
Status:
issued
Fee:
$50
Permit Type:
Weatherization
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$10,670
Permit #:
R-25-0257
Status:
issued
Fee:
$110
Permit Type:
68;434
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$8,658
Permit #:
R-25-0037
Status:
issued
Fee:
$140
Permit Type:
Newfamilydwelling
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$7,201
Permit #:
RSP-25-0007
Status:
issued
Fee:
$126
Permit Type:
N/A
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$2,791
Permit #:
R-25-1124
Status:
issued
Fee:
$30
Permit Type:
Newfamilydwelling
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$4,562
Permit #:
RSP-25-0194
Status:
issued
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$4,890
Permit #:
R-25-0030
Status:
issued
Fee:
$100
Permit Type:
Newfamilydwelling
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$11,378
Permit #:
R-24-1170
Status:
issued
Fee:
$160
Permit Type:
Weatherization
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$8,885
Permit #:
RSP-25-0361
Status:
issued
Fee:
$147
Permit Type:
N/A
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$6,394
Permit #:
R-25-0285
Status:
issued
Fee:
$77
Permit Type:
Insulation
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$4,613
Permit #:
25-11CB
Status:
approved
Fee:
$62
Permit Type:
N/A
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$3,267
Permit #:
R-25-0436
Status:
issued
Fee:
$79
Permit Type:
N/A
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$8,139
Permit #:
R-24-1671
Status:
issued
Fee:
$60
Permit Type:
Weatherization
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$7,948
Permit #:
R-24-0722
Status:
issued
Fee:
$50
Permit Type:
Weatherization
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$7,223
Permit #:
SBP-24-45
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mass save insulation and air sealing
Valuation:
$1,440
Permit #:
SF1650456
Status:
filed
Fee:
$40
Permit Type:
N/A
Building Type:
1-3fam
Mass save insulation and air sealing
Valuation:
$522
Permit #:
SF1650455
Status:
filed
Fee:
$30
Permit Type:
N/A
Building Type:
1-3fam
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Verified License
BuildZoom confirmed this contractor's license
William Sloan Colt License info
Verified License
| License # | CS-118144 |
| Status | Active |
| State | Massachusetts |
| Type | Building Licenses, Construction Supervisor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for William Sloan Colt at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
27
Permits
- Building permit records show that William Sloan Colt has worked on 27 permitted projects.