Updated: Jul 10, 2026
Location and Projects
Address
PO BOX 270540, Louisville, CO, 80027
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Xtreme Building Construction
Based in Boulder County, Xtreme Building Inc serves clients in Louisville, Colorado, and the surrounding areas with a focus on both new construction and repairs or restorations. With 16 years of experience, this contractor manages projects across a range of job sites, including those that are occupied and fully operational. Xtreme Building Inc handles multi-phase construction jobs and collaborates with architects and designers to develop functional structures. The company oversees every phase of the process, from project planning and budgeting to on-site organization and staffing. Xtreme Building Inc is equipped to deliver end-to-end project management for clients seeking construction or restoration services in the Boulder County region.
Xtreme Building Inc Services
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Xtreme Building Inc Contact Information
Phone Number: (303) 862-6237
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Address: PO BOX 270540, Louisville, CO 80027
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Xtreme Building Inc Louisville
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Xtreme Building Inc has a BuildZoom score of 100, which places them above 87% of 55,949 contractors in Colorado.
Activity
|
2 projects
|
2025 |
|
1 project
|
2024 |
Our building permit records indicate that Xtreme Building Inc has worked on at least
3.0 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
|
1 project
|
$100k-$250k |
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.
Partition off two rooms in existing finished basement. rooms to be located on the eastern side of the basement one in the northern corner and one in the southern corner. cut existing (2) windows in southern room to match the sill height of the existing window in the northern room. northern room to have closet and be a bedroom southern room to have no closet and be office craft area
Valuation:
$20,000
Permit #:
RES-0985-2021
Status:
certificate of completion
Fee:
$1,074
Permit Type:
N/A
Building Type:
N/A
Project scope is to finish basement convert existing two car garage to living space as main level master bedroom suite. compliant parking to be added alongside the building
Valuation:
$141,230
Permit #:
BLD-SFD2024-00009
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition of two story master suite above garage as well as addition off the back for larger kitchen/dining room
Valuation:
$500,984
Permit #:
RES-0595-2019
Status:
issued
Fee:
$19,597
Permit Type:
N/A
Building Type:
N/A
Main floor deck building
Valuation:
N/A
Permit #:
EXT_R2025-00027
Status:
issued
Fee:
N/A
Permit Type:
Deck
Building Type:
N/A
Installation of two new footings to stabilize an existing cantilevered stairwell on a multi-family building. no associated mep. -- "skirt"/fence around stairs is flush with ground/slab therefore no new obstruction is being placed in the conveyance zone, no conveyance zone permit required. *resubmittal to remove skirt from scope of project and replace 4x4 with 3" steel. reference engin... see more
Valuation:
N/A
Permit #:
PMT2017-02781
Status:
complete
Fee:
$265
Permit Type:
N/A
Building Type:
N/A
Perimeter finish of lower basement area storage closet and vinyl flooring. no bathroom work. adding navien 240 tankless water heater
Valuation:
$20,000
Permit #:
BP-22-02178
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential singl...
Remove grade level rear deck pour caissons and new slab. frame porch roof/tie into existing dwelling roof
Valuation:
$19,500
Permit #:
MISC-7586-2020
Status:
final
Fee:
$1,162
Permit Type:
N/A
Building Type:
N/A
Installation of two new footings to stabilize an existing cantilevered stairwell on a multi-family building. no associated mep. -- skirt"/fence around stairs is flush with ground/slab therefore no new obstruction is being placed in the conveyance zone no conveyance zone permit required. *resubmittal to remove skirt from scope of project and replace 4x4 with 3 steel. reference engineer... see more
Valuation:
N/A
Permit #:
PMT2017-02781
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit 2/concrete patio roof expansion for ht/b25-0275
Valuation:
N/A
Permit #:
B25-0244
Status:
applied
Fee:
N/A
Permit Type:
Deck
Building Type:
N/A
Demolish closet area in existing finished basement and addition a bath; replace water heater
Valuation:
$12,500
Permit #:
B201807479
Status:
complete
Fee:
$667
Permit Type:
N/A
Building Type:
N/A
Main floor bathroom remodel addition shower
Valuation:
N/A
Permit #:
BLDG19-1322
Status:
issued
Fee:
$438
Permit Type:
Interior remodel
Building Type:
N/A
Install wood burning stove
Valuation:
$5,000
Permit #:
RES-2915-2022
Status:
final
Fee:
$330
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
BLD-ACC2019-00113
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$7,000
Permit #:
RES-1587-2022
Status:
final
Fee:
$324
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel to include installation of a new sliding glass door raise the sill height of an existing bay window sink relocation (only) gas piping and electrical service upgrade
Valuation:
N/A
Permit #:
PMT2016-05109
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New exterior door to existing/permitted rec. room and replace existing (permitted) bay window to a bay-door (28 sq.ft.). scope of work includes exterior door lights and landings per 2012 irc.
Valuation:
$2,500
Permit #:
PMT2015-04010
Status:
Issued
Fee:
N/A
Permit Type:
Residential
Building Type:
Single Family Det...
Property access
Valuation:
N/A
Permit #:
ROW-0458-2020
Status:
approved
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Installation of two new footings to stabilize an existing cantilevered stairwell on a multi-family building. no associated mep. -- skirt"/fence around stairs is flush with ground/slab therefore no new obstruction is being placed in the conveyance zone no conveyance zone permit required
Valuation:
N/A
Permit #:
PMT2017-02781-FLD
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel to include installation of a new sliding glass door raise the sill height of an existing bay window sink relocation (only) gas piping and electrical service upgrade
Valuation:
N/A
Permit #:
PMT2016-05109-PLB
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel to include installation of a new sliding glass door raise the sill height of an existing bay window sink relocation (only) gas piping and electrical service upgrade
Valuation:
N/A
Permit #:
PMT2016-05109-ELE
Status:
complete
Fee:
$37
Permit Type:
N/A
Building Type:
N/A
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Xtreme Building Inc Reviews
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Verified License
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Xtreme Building Inc License info
Verified License
| License # | LIC-0010952-GENCC |
| Status | Active |
| City | Boulder |
| Type | General |
| Class | Class C |
| Date Issued | 06-03-2026 |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Xtreme Building Inc at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | C120494 |
| Status | Active |
| County | Douglas County |
| Type | General C |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for Xtreme Building Inc at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | GCC7837145 |
| Status | Active |
| City | Lafayette |
| Type | General Class C |
- When BuildZoom last verified this license, it had an expiration date of June, 2020. Check the current license status of Xtreme Building Inc with the City of Lafayette
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | LIC-0010952 |
| Status | Active |
| City | Boulder |
| Type | General Contractor |
| Class | Class C |
- When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of Xtreme Building Inc with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1902188 |
| 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 Xtreme Building Inc at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CON-12-0003 |
| Status | Inactive |
| County | Boulder County |
| Type | One And Two Family Residential |
- According to the Boulder County Land Use Department, 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 Xtreme Building Inc at the Boulder County Land Use Department.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
28
Permits
- Building permit records show that Xtreme Building Inc has worked on 28 permitted projects.
Xtreme Building Inc Employees
AD
Anthony Defauw
Owner
CD
Ceo Anthony Defauw
Owner