Updated: Jul 14, 2026
Location and Projects
Address
2447 WINDING DR, Longmont, CO, 80504
Use our bidding system to
request a quote
Groulx Mechanical
Their BuildZoom score of 108 ranks in the top 5% of 55,949 Colorado licensed contractors.
If you are thinking of hiring Groulx Mechanical, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Groulx Mechanical Contact Information
Phone Number: (720) 329-3429
Edit
Address: 2447 WINDING DR, Longmont, CO 80504
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Groulx Mechanical Longmont
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Groulx Mechanical has a BuildZoom score of 108, which places them above 95% of 55,949 contractors in Colorado.
Activity
|
7 projects
|
2025 |
|
1 project
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Groulx Mechanical has worked on at least
10.0 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
|
3 projects
|
Home Additions |
|
10 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Groulx Mechanical mostly works on
hvac project
and home addition
projects.
Pricing
|
1 project
|
< $5k |
|
2 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
3 projects
|
$50k-$100k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $35,594. 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.
Pop-top addition adding 1200sf with 3 bedrooms master bathroom 1 3/4 bathroom and living area
Valuation:
$300,000
Permit #:
B202301952
Status:
issued
Fee:
$11,644
Permit Type:
N/A
Building Type:
N/A
1000 sf remodel to include new bathroom and bedroom. new siding windows & doors. mep as needed
Valuation:
$73,000
Permit #:
B202500140
Status:
issued
Fee:
$3,109
Permit Type:
N/A
Building Type:
N/A
Addition a bedroom bathroom and flex space to the unfinished portion of the basement
Valuation:
$84,000
Permit #:
B202501019
Status:
complete
Fee:
$3,897
Permit Type:
N/A
Building Type:
N/A
Finish 3rd car garage into studio. frame walls addition electrical outlets led lighting move existing electrical panel to outside addition ductless heat system replace garage door with french door
Valuation:
$32,500
Permit #:
B202101475
Status:
complete
Fee:
$1,548
Permit Type:
N/A
Building Type:
N/A
Furnace and air conditioning replacement
Valuation:
$8,000
Permit #:
B202502491
Status:
issued
Fee:
$239
Permit Type:
N/A
Building Type:
N/A
Furnace and air conditioning replacement
Valuation:
$8,000
Permit #:
B202502491
Status:
issued
Fee:
$239
Permit Type:
N/A
Building Type:
N/A
Construction of a new bathroom in an unfinished basement. 83.28sqft
Valuation:
$35,594
Permit #:
25-000183
Status:
issued
Fee:
$1,676
Permit Type:
N/A
Building Type:
N/A
Finish out basement and replace hvac
Valuation:
$69,500
Permit #:
B202504378
Status:
issued
Fee:
$3,593
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel - remove wall relocate electric and plumbing
Valuation:
$30,000
Permit #:
B202103860
Status:
complete
Fee:
$1,439
Permit Type:
N/A
Building Type:
N/A
Replacement forced air furnace for single-family detached residence
2023-03-20
Replace furnace and air conditioning unit
Valuation:
N/A
Permit #:
MEC2022-01710
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New furnace and air conditioning replacement
Valuation:
$8,000
Permit #:
B202204787
Status:
complete
Fee:
$231
Permit Type:
N/A
Building Type:
N/A
Elevator installation and stair modifications
Valuation:
N/A
Permit #:
BPC-015441-2020
Status:
issued
Fee:
N/A
Permit Type:
Interior remodel ...
Building Type:
N/A
*installation of a replacement atmospheric water heater 80% efficient 45k btu. install thermal expansion device service outlet and carbon monoxide detector(s) per code
Valuation:
N/A
Permit #:
MEC2018-01507
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Furnace air conditioning and water heater
Valuation:
$9,500
Permit #:
B202103259
Status:
issued
Fee:
$304
Permit Type:
N/A
Building Type:
N/A
Install new furnace-95% efficiency 120k btus
Valuation:
$4,190
Permit #:
BP-21-01253
Status:
issued
Fee:
$198
Permit Type:
N/A
Building Type:
Residential singl...
Furnace and air conditioning retro
Valuation:
$8,500
Permit #:
B202101530
Status:
complete
Fee:
$242
Permit Type:
N/A
Building Type:
N/A
Air conditioning install 13 seer 4 ton
Valuation:
$3,850
Permit #:
BP-21-01518
Status:
complete
Fee:
$201
Permit Type:
N/A
Building Type:
Residential singl...
Replace furnace
Valuation:
$2,200
Permit #:
B202200225
Status:
complete
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Finish basement
Valuation:
N/A
Permit #:
BPR-014009-2020
Status:
final
Fee:
N/A
Permit Type:
Basement finish
Building Type:
N/A
Master addition and screened porch org total liv 1772 per boco 2124 new total liv. screened porch not habitable space
Valuation:
N/A
Permit #:
B201700687
Status:
complete
Fee:
$1,768
Permit Type:
N/A
Building Type:
N/A
Similar Contractors See more
128
BZ Score
$8.7K
Avg Project
-
Projects
License # CR25-0822
Englewood, CO
134
BZ Score
$6.7K
Avg Project
-
Projects
122
BZ Score
$5.9K
Avg Project
-
Projects
Groulx Mechanical Reviews
BuildZoom hasn't received any reviews for Groulx Mechanical. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Let us find you an HVAC pro in your area today
We'll search our vast network of HVAC Pros and connect
you with one that meets your needs today.
Groulx Mechanical License info
License Not Verified
| License # | 25-000153 |
| Status | Active |
| City | Lafayette |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of March, 2026. Check the current license status of Groulx Mechanical with the City of Lafayette
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC8010 |
| 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 Groulx Mechanical at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CON-18-0007 |
| Status | Inactive |
| County | Boulder County |
| Type | Residential Mechanical Installations And Repair |
- 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 Groulx Mechanical at the Boulder County Land Use Department.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 160631063 |
| 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 Groulx Mechanical at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | D11015 |
| Status | Inactive |
| City | Littleton |
| Type | Class D |
- 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 Groulx Mechanical at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
36
Permits
- Building permit records show that Groulx Mechanical has worked on 36 permitted projects.
Groulx Mechanical Employees
GI
Groulx Mech, Htg, Clng Inc
Owner
MG
Mark Groulx
Owner
MG
Mark J Groulx
Contact