Updated: Jun 30, 2026
Location and Projects
Address
8681 Rutgers St, Westminster, CO, 80031
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Kastanek Construction Plumber
Kastanek Construction, 8681 Rutgers St, Westminster, CO (Owned by: Ralph Kastanek) holds a Plumbing Contractor license and 19 other licenses according to the Lafayette license board.
Their BuildZoom score of 103 ranks in the top 10% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Kastanek Construction, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Kastanek Construction Services
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Kastanek Construction Contact Information
Phone Number: (720) 456-6737
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Address: 8681 Rutgers St, Westminster, CO 80031
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Kastanek Construction Westminster
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Kastanek Construction has a BuildZoom score of 103, which places them above 90% of 55,949 contractors in Colorado.
Activity
|
7 projects
|
2025 |
|
7 projects
|
2024 |
|
6 projects
|
2023 |
Our building permit records indicate that Kastanek Construction has worked on at least
20.0 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
|
20 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Kastanek Construction mostly works on
plumbing project
projects.
Pricing
|
2 projects
|
< $5k |
|
4 projects
|
$5k-$20k |
|
7 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
The typical size of their permits is approximately $25,000. 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 Kastanek Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
Basement bathroom remodel - demolish existing shower building new wall for access vanity drain use existing toilet vanity plumbing stub insulate wall to updated r21 new prefab shower pan mixing valve vanity tile denshield vented bathroom fan
Valuation:
$14,000
Permit #:
RES-3580-2024
Status:
final
Fee:
$799
Permit Type:
N/A
Building Type:
N/A
1st floor remodel turn bedroom to walk in master closet and bathroom remove 1/2 bathroom and remodel main hallway bathroom all interior walls non load bearing per attached engineering letter
Valuation:
$60,000
Permit #:
23-000260
Status:
issued
Fee:
$2,675
Permit Type:
N/A
Building Type:
N/A
Basement finish approx. 414 sq. ft living room laundry room bathroom closet mechanical room kitchen remodel moving sink to a new kitchen island
Valuation:
$36,050
Permit #:
24-000610
Status:
issued
Fee:
$1,651
Permit Type:
N/A
Building Type:
N/A
Basement finish to include music studio living area bedroom wet bar bathroom laundry unfinished storage area mechanical room new tankless water heater will be part of this permit
Valuation:
$35,000
Permit #:
23-000235
Status:
issued
Fee:
$1,673
Permit Type:
N/A
Building Type:
N/A
Basement upgrades - addition (3) new washers and dryers remove and replace existing stairs down into mechanical room and addition code compliant handrail install new lights in storage room addition ductwork to accommodate new dryers fur out basement walls in storage room and laundry room install new lay in ceiling in corridor laundry room and storage room one storage room converted to... see more
Valuation:
N/A
Permit #:
2021-PLUMB-0009374
Status:
final
Fee:
$100
Permit Type:
N/A
Building Type:
Multi-family resi...
Basement finish to include 460 sq. ft. 1 bedroom bathroom rec room mechanical room laundry(work started w/out permit)
Valuation:
$24,000
Permit #:
24-000095
Status:
issued
Fee:
$1,147
Permit Type:
N/A
Building Type:
N/A
Interior kitchen remodel - update cabinets electrical flooring base and case. bathroom remodel - 1sr floor bathroom new shower pan mixing valve wall tile vanity. moving air conditioning condensate line towards condensate
Valuation:
$96,000
Permit #:
RES-3536-2023
Status:
final
Fee:
$7,242
Permit Type:
N/A
Building Type:
N/A
Primary bathroom remodel demolish soaking tub/shower install new shower and linen closet
Valuation:
$18,000
Permit #:
24-000234
Status:
issued
Fee:
$873
Permit Type:
N/A
Building Type:
N/A
Basement finish 1750 sf w/bar 3/4 bathroom storage and game rom
Valuation:
N/A
Permit #:
BLDG25-0776
Status:
issued
Fee:
N/A
Permit Type:
Basement finish
Building Type:
N/A
Basement finish 1750 sf w/bar 3/4 bathroom storage and game rom
Valuation:
N/A
Permit #:
BLDG25-0776
Status:
issued
Fee:
N/A
Permit Type:
Basement finish
Building Type:
N/A
Bathroom remodel - install new tub mixing valve tile floor surround install window to engineering letter update gfci
Valuation:
$15,000
Permit #:
RES-3668-2024
Status:
final
Fee:
$851
Permit Type:
N/A
Building Type:
N/A
Replace water heater 50 gal gas power vent
Valuation:
$3,200
Permit #:
BP-25-00314
Status:
complete
Fee:
$164
Permit Type:
N/A
Building Type:
Commercial/indust...
Two bathroom remodels on 1st floor
Valuation:
N/A
Permit #:
BLDG25-0777
Status:
final
Fee:
N/A
Permit Type:
Interior remodel
Building Type:
N/A
Two bathroom remodels on 1st floor
Valuation:
N/A
Permit #:
BLDG25-0777
Status:
final
Fee:
N/A
Permit Type:
Interior remodel
Building Type:
N/A
Primary bathroom remodel. remove & replace bathtub shower vanity toilet & flooring
Valuation:
$44,405
Permit #:
RES-3771-2024
Status:
certificate of completion
Fee:
$2,157
Permit Type:
N/A
Building Type:
N/A
Basement finish. finish basement (721sf) with addition of 3/4 bathroom. shall include bathroom and bedroom
Valuation:
$28,840
Permit #:
B202305715
Status:
complete
Fee:
$1,787
Permit Type:
N/A
Building Type:
N/A
Basement finish. finish basement (721sf) with addition of 3/4 bathroom. shall include bathroom and bedroom
Valuation:
$28,840
Permit #:
B202305715
Status:
complete
Fee:
$1,787
Permit Type:
N/A
Building Type:
N/A
Basement finish includes 600 sq. ft. 1 bedroom bathroom living area closet and mechanical
Valuation:
$22,000
Permit #:
22-000845
Status:
issued
Fee:
$1,095
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel - moving plumbing electrical gas and mecha
Valuation:
N/A
Permit #:
BLDG19-0631
Status:
final
Fee:
$514
Permit Type:
Interior remodel
Building Type:
N/A
Addition laundry room in the existing garage
Valuation:
$25,000
Permit #:
25-000208
Status:
issued
Fee:
$1,475
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Kastanek Construction License info
Verified License
| License # | 25-000181 |
| Status | Active |
| City | Lafayette |
| Type | Plumbing Contractor |
| Date Issued | 04-15-2026 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Kastanek Construction at the City of Lafayette.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 3170 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Kastanek Construction at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 189910 |
| Status | Active |
| State | Colorado |
| Type | Plumber |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Kastanek Construction at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AEC3361 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Kastanek Construction at the The Town of Parker, Colorado.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | LCC2015061818 |
| Status | Active |
| City | Thornton |
| Type | Class D Plumbing Expires 2026 08 29 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Kastanek Construction at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 27830 |
| Status | Active |
| City | Thornton |
| Type | Plumbing |
- When BuildZoom last verified this license, it had an expiration date of February, 2017. Check the current license status of Kastanek Construction with the Thornton City Development Contractor License
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | MP.00189910 |
| Status | Active |
| State | Colorado |
| Type | Master Plumber |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Kastanek Construction with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 24-000137 |
| Status | Inactive |
| City | Lafayette |
| Type | General Class B |
- According to the City of Lafayette, 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 Kastanek Construction at the City of Lafayette.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 22-098980 |
| Status | Inactive |
| City | Lafayette |
| Type | Plumbing Contractor |
- According to the City of Lafayette, 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 Kastanek Construction at the City of Lafayette.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 288728 |
| Status | Inactive |
| State | Colorado |
- According to the Colorado Division of Professions and Occupations, 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 Kastanek Construction at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC888 |
| Status | Inactive |
| City | Arvada |
| Type | Contractor |
- According to the The City of Arvada, Colorado, 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 Kastanek Construction at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
| Type | Plbg A |
- 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. If this is your business, please update your license status.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2001261 |
| Status | Inactive |
| City | Westminster |
| Type | Plumbing Contractor |
- According to the City of Westminster, Colorado, 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 Kastanek Construction at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 3282 |
| Status | Inactive |
| State | Colorado |
| Type | Electrician |
- According to the Colorado Division of Professions and Occupations, 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 Kastanek Construction at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC8296 |
| Status | Inactive |
| City | Arvada |
| Type | Contractor |
- According to the The City of Arvada, Colorado, 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 Kastanek Construction at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
- 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. If this is your business, please update your license status.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | P140568 |
| Status | Inactive |
| County | Douglas County |
| Type | Plumbing |
- According to the Douglas County Building Division, 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 Kastanek Construction at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
- 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. If this is your business, please update your license status.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 131130006 |
| Status | Inactive |
| City | Westminster |
| Type | General Contractor |
- According to the City of Westminster, Colorado, 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 Kastanek Construction at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | PC.0003170 |
| Status | Inactive |
| State | Colorado |
| Type | Plumbing Contractor |
- According to the Colorado Division of Professions and Occupations, 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 Kastanek Construction at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
65
Permits
- Building permit records show that Kastanek Construction has worked on 65 permitted projects.
Kastanek Construction Employees
KL
Kastanek Plumbing Llc
RK
Ralph Kastanek
Owner
RK
Roger J Kastanek
RK
Roger Kastanek