Updated: Jul 11, 2026
Location and Projects
Address
10510 albion st, Thornton, CO, 80233
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Mile High Designs Construction
Serving the South Denver metro, Mile High Designs specializes in building custom outdoor living spaces engineered for Colorado’s climate. The company works across neighborhoods including Parker, Highlands Ranch, Castle Rock, Castle Pines, Lone Tree, Centennial, and Littleton. With 16 years in business, their portfolio features custom Trex composite decks, patio covers, pergolas, and railings. Projects are specifically designed to withstand Colorado’s sun, snow, and high-altitude conditions. Mile High Designs focuses on residential properties and provides fully integrated outdoor environments using Trex composite decking and other durable materials. The company manages all stages of construction, from design to completion, emphasizing structures built for long-term performance outdoors.
Mile High Designs Services
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Mile High Designs Contact Information
Phone Number: (303) 999-7053
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Address: 10510 albion st, Thornton, CO 80233
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Mile High Designs Thornton
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mile High Designs has a BuildZoom score of 110, which places them above 96% of 55,949 contractors in Colorado.
Activity
|
4 projects
|
2025 |
|
3 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Mile High Designs has worked on at least
12.0 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
|
4 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Mile High Designs mostly works on
home addition
projects.
Pricing
|
6 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
The typical size of their permits is approximately $12,000. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replace existing decks lafayette square condos 1062 lafayette street unit b & d remove and replace existing 244 sq ft and 85 sq ft decks. will not change shape/footprint of building. roofing under existing deck structures to be assessed removed repaired and replaced. roofer to ensure proper drainage and sealing prior to deck builds. construct new 85 and 244 square foot decks and stair... see more
Valuation:
$12,000
Permit #:
2025-LOG-0008603
Status:
approved
Fee:
$58
Permit Type:
N/A
Building Type:
N/A
Main level a) new floor plan to have living room kitchen dining room family room 2 bedrooms and 2 bathrooms on main level. b) remove load-bearing wall in between kitchen and living room and install lvl beam per engineer specifications across span from end of hallway to garage wall. (see engineer letter) c) remove 1 bedroom and convert into primary ensuite and primary walk in closet. d... see more
Valuation:
N/A
Permit #:
2025-RESCON-0003291
Status:
issued
Fee:
$924
Permit Type:
N/A
Building Type:
N/A
No m/e/p - remove and replace existing deck with new deck and stairs to match existing layout using kiln dried treated lumber framing with trex “transcend” line decking and fascia. new railing and addition of handrail for stairs. work to be performed by highline: design & building. window well cover
Valuation:
$12,000
Permit #:
24-0253
Status:
final
Fee:
$546
Permit Type:
N/A
Building Type:
N/A
Remove existing deck and replace with new 443 sq ft deck and stairs using trex decking
Valuation:
$23,000
Permit #:
RES-25-00026
Status:
complete
Fee:
$916
Permit Type:
N/A
Building Type:
N/A
Rebuild deck on rear of home. addition to deck and also building new patio cover
Valuation:
$65,000
Permit #:
RES-22-00024
Status:
complete
Fee:
$2,229
Permit Type:
N/A
Building Type:
N/A
No electrical or plumbing remove and replace walk out level deck on rear of home 432 sq ft
Valuation:
$6,912
Permit #:
23-0285
Status:
final
Fee:
$362
Permit Type:
N/A
Building Type:
N/A
Remove and replace existing deck with new 542 sq. ft. deck and patio cover
Valuation:
$13,000
Permit #:
RES-24-00995
Status:
complete
Fee:
$547
Permit Type:
N/A
Building Type:
N/A
Building new deck on front of house. install new door at upper level including new electrical for lighting and outlet
Valuation:
$13,250
Permit #:
2021-LOG-0009552
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Reconstruct deck on rear of house. replace majority of frame and all of decking and stairs. leave columns side rims and beams in place for reuse. 253 sq ft
Valuation:
$4,048
Permit #:
21-0175
Status:
final
Fee:
$240
Permit Type:
N/A
Building Type:
N/A
Replace deck on rear of home and addition patio cover
Valuation:
$18,500
Permit #:
RES-21-01612
Status:
complete
Fee:
$761
Permit Type:
N/A
Building Type:
N/A
Construct new patio covers on rear of home. addition built in grill unit
Valuation:
$23,000
Permit #:
RES-23-01293
Status:
complete
Fee:
$1,131
Permit Type:
N/A
Building Type:
N/A
Addition new deck area to existing deck on rear of house
Valuation:
N/A
Permit #:
BLDG21-6976
Status:
issued
Fee:
$438
Permit Type:
Deck
Building Type:
N/A
Remove and replace deck on rear of house. addition patio cover per plan deck 499 sq ft deck cover 307 sq ft
Valuation:
$12,896
Permit #:
20-0737
Status:
final
Fee:
$550
Permit Type:
N/A
Building Type:
N/A
Building new deck and pergola back yard
Valuation:
$9,900
Permit #:
RES21-00430
Status:
final
Fee:
$432
Permit Type:
N/A
Building Type:
N/A
Au - patio cover
Valuation:
$8,068
Permit #:
22-12480
Status:
issued
Fee:
$316
Permit Type:
New
Building Type:
Accessory use
Au - patio cover
Valuation:
$6,972
Permit #:
22-12479
Status:
issued
Fee:
$265
Permit Type:
New
Building Type:
Accessory use
2018 irc patio cover w electrical 445 sq ft
Valuation:
$12,800
Permit #:
RES20-01541
Status:
final
Fee:
$562
Permit Type:
Miscellaneous
Building Type:
N/A
Au - patio cover
Valuation:
$10,840
Permit #:
21-12453
Status:
issued
Fee:
$376
Permit Type:
New
Building Type:
Accessory use
Au - patio cover
Valuation:
$13,280
Permit #:
21-05392
Status:
issued
Fee:
$458
Permit Type:
New
Building Type:
Accessory use
Deck & gas line to fire pit on deck
Valuation:
$4,932
Permit #:
20-2097
Status:
issued
Fee:
$307
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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BZ Score
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BZ Score
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Projects
Mile High Designs Reviews
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Recent Buildzoom Projects
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Verified License
BuildZoom confirmed this contractor's license
Mile High Designs License info
License Not Verified
| License # | C019-0031 |
| Status | Active |
| County | Clear Creek County |
| Type | Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of Mile High Designs with the Clear Creek County, CO
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Denver |
| Type | General Contractor Class A |
- BuildZoom verified this license was active as of July 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Denver |
| Type | Residential Contractor Class C |
- BuildZoom verified this license was active as of July 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AEC561 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Mile High Designs at the The Town of Parker, Colorado.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| County | Jefferson County |
| Type | Class C Contractor (1 2 Family Dwellings) |
| Class | 1-2 Family Dwellings |
- When BuildZoom last verified this license, it had an expiration date of December, 2023. Check the current license status of Mile High Designs with the Jefferson County Licensed Contractors
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Denver |
- When BuildZoom last verified this license, it had an expiration date of June, 2021. Check the current license status of Mile High Designs 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 # | 2021 |
| Status | Active |
| City | Arvada |
| Type | Bid Contractor, Residential C |
- When BuildZoom last verified this license, it had an expiration date of June, 2017. Check the current license status of Mile High Designs with the The City of Arvada, Colorado
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 26942 |
| Status | Active |
| City | Thornton |
| Type | Class C Residential |
- When BuildZoom last verified this license, it had an expiration date of June, 2017. Check the current license status of Mile High Designs with the Thornton City Development Contractor License
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| Town | Parker |
| Type | Contractor, General |
- When BuildZoom last verified this license, it had an expiration date of June, 2017. Check the current license status of Mile High Designs with the The Town of Parker, Colorado
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CEN-13-06794 |
| Status | Active |
| City | Centennial |
| Type | General Contractor Class C |
- When BuildZoom last verified this license, it had an expiration date of June, 2017. Check the current license status of Mile High Designs with the Centennial Community Development Contractor Licensing
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL-004951-2024 |
| Status | Inactive |
| City | Centennial |
| Type | General |
| Class | General - Class C |
- According to the Centennial Community Development Contractor Licensing, 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 Mile High Designs at the Centennial Community Development Contractor Licensing.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LIC-0009530-GENCC |
| Status | Inactive |
| City | Boulder |
| Type | General |
| Class | Class C |
- According to the Boulder Licensing Board, 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 Mile High Designs at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Aurora |
| Type | Residential Building Contractor |
- According to the Aurora, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | C00165 |
| Status | Inactive |
| City | Littleton |
| Type | Contractor |
- According to the The City of Littleton, CO, 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 Mile High Designs at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LCC2015063111 |
| Status | Inactive |
| City | Thornton |
| Type | Class C Residential Contractor |
- According to the Thornton City Development Contractor License, 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 Mile High Designs at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC2021 |
| 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 Mile High Designs at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
253
Permits
- Building permit records show that Mile High Designs has worked on 253 permitted projects.
Mile High Designs Employees
ML
Mile High Designs Llc
Owner
RD
Ray Dertz
Owner
RD
Raymond Dertz
TM
Tony Mata