Updated: Jun 04, 2026
Location and Projects
Address
31 MADISON AVE, Hartford, CT, 06101
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National Services Ii Construction
National Services Ii, Llc, 31 Madison Ave, Hartford, CT holds a Renovation license and 3 other licenses according to the Environmental Protection Agency license board.
Their BuildZoom score of 92 ranks in the top 32% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring National Services Ii, Llc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
National Services Ii, Llc Services
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National Services Ii, Llc Contact Information
Phone Number: (860) 983-1102
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Address: 31 MADISON AVE, Hartford, CT 06101
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National Services Ii, Llc Hartford
Quality
92
68th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
National Services Ii, Llc has a BuildZoom score of 92, which places them above 68% of 12,093 contractors in Connecticut.
Activity
|
1 project
|
2025 |
Our building permit records indicate that National Services Ii, Llc has worked on at least
1.0 project over the past year.
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
|
1 project
|
< $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.
Building Permits by National Services Ii, Llc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Unit 210: - replace (8) vinyl windows
Valuation:
$4,200
Permit #:
COM-ALT-25-000262
Status:
issued
Fee:
$221
Permit Type:
N/A
Building Type:
N/A
Emergency water leak - remove existing roof shingles and install 14 squares of architectural shingles ridge caps flashing ice & water
Valuation:
$8,500
Permit #:
RES-ALT-21-180539
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish of a few walls and re-framing/sheet rocking for a new distribution of office spaces
Valuation:
$10,000
Permit #:
COM-ALT-21-160779
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install r13 insulation on wall and r30 insulations on ceiling - install 5/8 drywall on ceilings and 1/2 drywall on walls - repair walls by apply compound and paint install linoleum floor
Valuation:
$15,500
Permit #:
RES-ALT-17-176214
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building out offices space 2x4 metal studs install 4 doors (interior) for offices install 5/8 sheetrock
Valuation:
$13,000
Permit #:
COM-ALT-19-159526
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish two existing office wall. build/frame two walls to resize office spaces 2 x 4 steel studs 5/8 drywall
Valuation:
$2,000
Permit #:
COM-ALT-19-159706
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Emergency repairs due to water damaged. replace 5/8 sheetrock on ceiling in living room + hallway area.tape, compound, sand, primer, and paint
Valuation:
$1,000
Permit #:
RES-NEW-18-156843
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Strip and re-roof
Valuation:
$5,000
Permit #:
BP-2020-289
Status:
issued
Fee:
$153
Permit Type:
Roof
Building Type:
N/A
Entire unit. install r38 r13 insulation on walls & ceilings install 5/8 sheetrock. replace 3 windows
Valuation:
$23,500
Permit #:
RES-NEW-18-156438
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace (3) porches front + re-use existing footings
Valuation:
$12,000
Permit #:
RES-ALT-20-179095
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace (3) porches front + re-use existing footings
Valuation:
$12,000
Permit #:
RES-NEW-20-152975
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Drywall ceiling repair
Valuation:
$500
Permit #:
RES-ALT-22-181698
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 413 insulation on wall and 430 insulations on ceiling - install 5/8 drywall on ceilings and 1/2 drywall on walls
Valuation:
$4,300
Permit #:
RES-ALT-17-176215
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Emergency repairs due to water damaged. replace 5/8 sheetrock on ceiling in living room + hallway area.tape, compound, sand, primer, and paint
Valuation:
$1,000
Permit #:
RES-ALT-18-177238
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Entire unit. install r38 r13 insulation on walls & ceilings install 5/8 sheetrock. replace 3 windows
Valuation:
$23,500
Permit #:
RES-ALT-17-176401
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace ceiling 5/8 sheetrock in bathrooms due to water damaged in unit 2m + 1m
Valuation:
$695
Permit #:
RES-NEW-18-156757
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace ceiling 5/8 sheetrock in bathrooms due to water damaged in unit 2m + 1m
Valuation:
$695
Permit #:
RES-ALT-17-175955
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace siding rear door for porch + windows
Valuation:
$5,070
Permit #:
RES-ALT-18-177866
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Change siding + replace doors + windows
Valuation:
$5,070
Permit #:
RES-ALT-18-177865
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovate basement for additional living space combined with 1st floor dwelling. total 3 dweliings. basement and 1st floor combined as one dwelling. provide smoke/c.o. detectors r walsh certificate of approval inspector: f bellonio 203-946-8039
Valuation:
$5,000
Permit #:
B-18-660
Status:
complete
Fee:
$201
Permit Type:
Rehab-residential
Building Type:
Multi family
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BZ Score
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BZ Score
$45K
Avg Project
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BZ Score
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Projects
National Services Ii, Llc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
National Services Ii, Llc License info
Verified License
| License # | NAT-F170217-2 |
| Status | Active |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for National Services Ii, Llc at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | HIC.0633317 |
| Status | Active |
| State | Connecticut |
| Type | Home Improvement Contractor |
| Date Issued | 04-01-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for National Services Ii, Llc at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | MCO.0902988 |
| Status | Inactive |
| State | Connecticut |
| Type | Mechanical Corporation |
- According to the Connecticut Department of Consumer Protection, 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 National Services Ii, Llc at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-F170217-1 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- According to the United States Environmental Protection Agency, 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 National Services Ii, Llc at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
67
Permits
- Building permit records show that National Services Ii, Llc has worked on 67 permitted projects.