Updated: Jun 23, 2026
Location and Projects
Address
6403 Laguna Cir, Littleton, CO, 80130
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WELCOME TO GN ROOFING, INC.
We are a local business that has served the Denver metro area since 2004. Our excellent work has recommended us to a large quantity of homeowners and custom builders. Our main goal is to always help the homeowner and new construction builders, have a better quality product and a better warranty for peace of mind in the future.
WE INSTALLED ALL KINDS OF MATERIALS.
GN Roofing,inc. specializes in all types of residential and comercial roofing. Types of roofing we install: Concrete tile, Asphalt Shingles, Decra Stone Coated, metro stone coated steel, Standing seam metal Roofing, Davinci roofing shake and slate, Flat roof, EPDM, T P O, and others materials.
www.gnroofing.net
phone 303-507-0842
email. [email protected]
From BuildZoom: WELCOME TO GN ROOFING, INC., 6403 Laguna Cir, Littleton, CO holds a Class D Roofing/Siding Expires 2026 08 19 license and 14 other licenses according to the Thornton license board.
Their BuildZoom score of 115 ranks in the top 2% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring WELCOME TO GN ROOFING, INC., we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
WELCOME TO GN ROOFING, INC. Contact Information
Phone Number: (303) 507-0842
Address: 6403 Laguna Cir, Littleton, CO 80130
WELCOME TO GN ROOFING, INC. Littleton
Quality
115
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
WELCOME TO GN ROOFING, INC. has a BuildZoom score of 115, which places them above 98% of 55,949 contractors in Colorado.
Activity
|
92 projects
|
2025 |
|
93 projects
|
2024 |
|
56 projects
|
2023 |
Our building permit records indicate that WELCOME TO GN ROOFING, INC. has worked on at least
241.0 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
|
231 projects
|
Roofing projects |
Analyzing permits over the last 4 years shows that WELCOME TO GN ROOFING, INC. mostly works on
roofing project
projects.
Pricing
|
69 projects
|
< $5k |
|
170 projects
|
$5k-$20k |
|
51 projects
|
$20k-$50k |
|
5 projects
|
$50k-$100k |
The typical size of their permits is approximately $7,500. 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.
Building Permits by WELCOME TO GN ROOFING, INC.
This is a sample of this contractor's permits. Click here to access their complete permit history.
27 sq boral cottage stone coated shingles metal (material color charcoal) 7 sq epdm manufactured versico
Valuation:
$35,000
Permit #:
2025-ROOFSIDE-0003732
Status:
final
Fee:
$300
Permit Type:
N/A
Building Type:
Single family res...
Tear off 30.5 sq of asphalt shingles and replace w 3 sq of tpo and 31 sq of owens corning
Valuation:
$24,000
Permit #:
2025-ROOFSIDE-0001764
Status:
issued
Fee:
$211
Permit Type:
N/A
Building Type:
Single family res...
51sq remove and re-replace conrete tile westlake flat sasoleum tile
Valuation:
$60,000
Permit #:
2025-ROOFSIDE-0000600
Status:
final
Fee:
$490
Permit Type:
N/A
Building Type:
Single family res...
Install 35 sq of owenscorning duration shingles and 5 sq of black epdm
Valuation:
$26,000
Permit #:
2025-ROOFSIDE-0003472
Status:
final
Fee:
$228
Permit Type:
N/A
Building Type:
Single family res...
Tear off existing asphalt shingles and install owens corning duration flex asphalt class 4 shingles 33 squares
Valuation:
$18,800
Permit #:
24-000680
Status:
issued
Fee:
$909
Permit Type:
N/A
Building Type:
N/A
Replace shingles on the back of the house 17 sq of iko shingles
Valuation:
$10,000
Permit #:
2025-ROOFSIDE-0004585
Status:
final
Fee:
$99
Permit Type:
N/A
Building Type:
Single family res...
Tear off 31 flat roof replace w white tpo tapered system
Valuation:
$30,000
Permit #:
2025-ROOFSIDE-0003852
Status:
final
Fee:
$260
Permit Type:
N/A
Building Type:
Single family res...
Tear off and replace 15 sq of shingles w 15 sq of iko shingles
Valuation:
$7,000
Permit #:
2025-ROOFSIDE-0004916
Status:
final
Fee:
$75
Permit Type:
N/A
Building Type:
Single family res...
Tear off 6.5 flat roof and replace w 6.5 tpo over dens deck
Valuation:
$6,800
Permit #:
2025-ROOFSIDE-0004587
Status:
final
Fee:
$75
Permit Type:
N/A
Building Type:
Garage
36 sq asphalt shingles 8 blck epdm
Valuation:
$25,000
Permit #:
2025-ROOFSIDE-0003890
Status:
final
Fee:
$219
Permit Type:
N/A
Building Type:
Single family res...
9 sq tamko 30yrs rustic blck 3 sq of blck epdm
Valuation:
$12,000
Permit #:
2025-ROOFSIDE-0003671
Status:
final
Fee:
$115
Permit Type:
N/A
Building Type:
Duplex
9 sq tamko 30yrs rustic blck 3 sq of blck epdm
Valuation:
$12,000
Permit #:
2025-ROOFSIDE-0003670
Status:
final
Fee:
$115
Permit Type:
N/A
Building Type:
Duplex
Replace 43 sq of existing asphalt shingles
Valuation:
$15,000
Permit #:
2025-ROOFSIDE-0001500
Status:
final
Fee:
$139
Permit Type:
N/A
Building Type:
Single family res...
Replace singles with 22 sq gaf grand sequolla
Valuation:
$14,500
Permit #:
2025-ROOFSIDE-0001422
Status:
final
Fee:
$139
Permit Type:
N/A
Building Type:
Single family res...
Install 32 sq of black 60 mil epdm and 5sq of berridge black standing seam metal
Valuation:
$45,000
Permit #:
2023-ROOFSIDE-0000383
Status:
final
Fee:
$380
Permit Type:
N/A
Building Type:
Single family res...
27 sq of blck epdm 60 mil
Valuation:
$27,000
Permit #:
2025-ROOFSIDE-0005052
Status:
issued
Fee:
$236
Permit Type:
N/A
Building Type:
Single family res...
Tear 78 sq of flat roof and install epdm with insulation
Valuation:
$85,000
Permit #:
2023-ROOFSIDE-0000409
Status:
final
Fee:
$665
Permit Type:
N/A
Building Type:
Commercial
Tear off 45 sq asphalt shingles and install new owens corning duration asphalt shingles
Valuation:
$20,000
Permit #:
2023-ROOFSIDE-0000411
Status:
final
Fee:
$179
Permit Type:
N/A
Building Type:
Commercial
Primary residence - composition
Valuation:
$11,000
Permit #:
25-05991
Status:
complete
Fee:
$195
Permit Type:
Primary residence...
Building Type:
N/A
Tear off 16 sq of presidential shingles replace with 18 sq of certain teed shingles 9 sq of tpo
Valuation:
$26,320
Permit #:
2024-ROOFSIDE-0006816
Status:
final
Fee:
$236
Permit Type:
N/A
Building Type:
Single family res...
Recent Buildzoom Projects
Hiring a contractor?
Verified License
BuildZoom confirmed this contractor's license
WELCOME TO GN ROOFING, INC. License info
Verified License
| License # | LCC202400451 |
| Status | Active |
| City | Thornton |
| Type | Class D Roofing/Siding Expires 2026 08 19 |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for WELCOME TO GN ROOFING, INC. at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Denver |
| Type | D Roof Covering/Waterproofing |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AEC4079 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for WELCOME TO GN ROOFING, INC. at the The Town of Parker, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | R04010 |
| Status | Active |
| County | Douglas County |
| Type | Roofing |
| Business Type | Corporation |
- BuildZoom verified this license was active as of October 2025.
Verify this license's status for WELCOME TO GN ROOFING, INC. at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CON-10-0312 |
| Status | Active |
| County | Boulder County |
| Type | New Roofing, Re Roofing |
| Business Type | Corporation |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for WELCOME TO GN ROOFING, INC. at the Boulder County Land Use Department.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Denver |
| Type | D Roof Covering/Waterproofing |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of October, 2023. Check the current license status of WELCOME TO GN ROOFING, INC. with the City and County of Denver Community Planning and Development
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | LIC-0008343 |
| Status | Active |
| City | Boulder |
| Type | General Contractor |
| Class | Class D-2 Roofing |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of WELCOME TO GN ROOFING, INC. with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 0008343 |
| Status | Active |
| City | Boulder |
| Type | General Contractor Class D-2 Roofing |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of March, 2017. Check the current license status of WELCOME TO GN ROOFING, INC. with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 9R-0293 |
| Status | Active |
| City | Arvada |
| Type | Bid Contractor, Roofing |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of March, 2017. Check the current license status of WELCOME TO GN ROOFING, INC. with the The City of Arvada, Colorado
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC4079 |
| Status | Inactive |
| City | Arvada |
| Type | Contractor |
| Business Type | Corporation |
- According to the The City of Arvada, Colorado, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for WELCOME TO GN ROOFING, INC. at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | D50051 |
| Status | Inactive |
| City | Littleton |
| Type | Contractor |
| Business Type | Corporation |
- According to the The City of Littleton, CO, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for WELCOME TO GN ROOFING, INC. at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | R-3970 |
| Status | Inactive |
| City | Fort Collins |
| Type | Sub Contractor |
| Business Type | Corporation |
- According to the City of Fort Collins, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for WELCOME TO GN ROOFING, INC. at the City of Fort Collins.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Aurora |
| Type | Roofing Contractor |
| Business Type | Corporation |
- According to the Aurora, Colorado, the status of this license was at one point cancelled. However, this information may have changed.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LIC-0008343-GENDROF |
| Status | Inactive |
| City | Boulder |
| Type | General |
| Class | Class D-2 Roofing |
| Business Type | Corporation |
- According to the Boulder Licensing Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for WELCOME TO GN ROOFING, INC. at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
| Business Type | Corporation |
- According to the City and County of Denver Community Planning and Development, the status of this license was at one point cancelled. However, this information may have changed.
This is a sample of licensing data; click here to access a complete history.
115
BuildZoom Score
Insured
| Insurer | Acceptance Indemnity Ins Co |
808
Permits
- Building permit records show that WELCOME TO GN ROOFING, INC. has worked on 808 permitted projects.