Updated: May 28, 2026
Location and Projects
Address
400 E. Union St., Pacific, MO, 63069
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Gallagher Mechanical
Gallagher Mechanical, 400 E Union St, Pacific, MO (Owned by: Michael Gallagher) holds a Hvac Service Ins license and 14 other licenses according to the St Louis County license board.
Their BuildZoom score of 114 ranks in the top 2% of 23,328 Missouri licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Gallagher Mechanical, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Gallagher Mechanical Contact Information
Phone Number: (314) 651-9615
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Address: 400 E. Union St., Pacific, MO 63069
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Gallagher Mechanical Pacific
Quality
114
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Gallagher Mechanical has a BuildZoom score of 114, which places them above 98% of 23,328 contractors in Missouri.
Activity
|
24 projects
|
2025 |
|
19 projects
|
2024 |
|
40 projects
|
2023 |
Our building permit records indicate that Gallagher Mechanical has worked on at least
83.0 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
|
22 projects
|
Home Additions |
|
3 projects
|
New Constructions |
|
26 projects
|
Mechanical projects |
|
21 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Gallagher Mechanical mostly works on
mechanical project
and home addition
projects.
Pricing
|
47 projects
|
< $5k |
|
18 projects
|
$5k-$20k |
|
5 projects
|
$20k-$50k |
|
8 projects
|
$50k-$100k |
|
4 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
The typical size of their permits is approximately $2,500. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Repairs will be made according to the residential occupancy inspection report dated 07/07/25 604.3 ground and tighten all receptacles 605.2 convert all kitchen outlets to gfci outlets 505.4 addition water heater relief valve 403.5 addition dryer vent to exterior 704.2 replace missing and/or defective smoke detectors 703.1 fire blocking - close openings in walls floor and ceiling 605.1... see more
Valuation:
$7,000
Permit #:
25BLD-06195
Status:
complete
Fee:
$156
Permit Type:
Repair
Building Type:
N/A
Repairs needed per residential occupancy inspection report dated 07/07/25 repair/replacement/ground of receptacles replacement/installation of gfci receptacles as noted installation of smoke alarms replacement of service cable from weatherhead to meter base installation of exterior gfci recetacles install and vent dryer vent to exterior of house and remove basket from existing vent in... see more
Valuation:
$6,000
Permit #:
25BLD-05803
Status:
canceled
Fee:
N/A
Permit Type:
Repair
Building Type:
N/A
Install 125 amp sub panel for pool equipment 120/240 volt single phase 4 wire pool bonding wiring hot tub pool pump low voltage lights salt machine wire outside kitchen install 8 can lights
Valuation:
$3,500
Permit #:
25ELE-04249
Status:
complete
Fee:
$403
Permit Type:
Other
Building Type:
N/A
***per inspector doc hatton this scope of work requires building plan review. please submit plans to our online permitting portal for more information on how to submit plans please go to our website at https://stlouiscountymo.gov/st-louis-county-departments/transportation-and-public-works/electronic-plan-review thank you!!***replace the 100-amp service panel with a 200-amp service pan... see more
Valuation:
$2,500
Permit #:
25ELE-06274
Status:
canceled
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Vacant relocating 400 amp meter base to left side of building (facing property) west side of building meter base #44220848 premise #360-210-201 thank you
Valuation:
$2,500
Permit #:
25ELE-04999
Status:
issued
Fee:
$97
Permit Type:
Alteration
Building Type:
N/A
Building residential existing building (integrated/non-integrated)
2025-03-06
Remodel existing bathroom and finish basement. all electrical and fire codes will be applied to new remodel project
Valuation:
$65,000
Permit #:
25BLD-01265
Status:
issued
Fee:
$383
Permit Type:
Miscellaneous work
Building Type:
N/A
Swap 3 rfu a/cs from one side of the building to the other. modify ductwork according to plan. replace 10 15-ton rtus with 10 new 15-ton rtus. install 3 walk-in coolers with piping for condensers and evaporators
Valuation:
$75,000
Permit #:
24MEC-07648
Status:
canceled
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Install gas line to accommodate as follows: 2 - pool heaters 400 000 +/- btus each 1 - gas grill 30 000 +/- btus 1 - outdoor fire pit +/- btus
Valuation:
$2,500
Permit #:
25MEC-02687
Status:
complete
Fee:
$126
Permit Type:
Alteration
Building Type:
N/A
***if you are going to be doing the service please fill in all the device information. if you are not touching the service please do not fill in any of the service information in the device area thank you!!***replace entrance cable from weatherhead to meter base install smoke detectors where needed install gfci's where needed (interior and exterior) rework wiring for garage door openers
Valuation:
$5,000
Permit #:
25ELE-10111
Status:
canceled
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Parent record installation of fiberglass swimming pool and cover patio area child record 25bld-03427 retaining wall
Valuation:
$120,000
Permit #:
25BLD-02789
Status:
issued
Fee:
$614
Permit Type:
Other
Building Type:
N/A
Aviator 5 llc - install a 60-amp double-pole circuit for car charger install a 20-amp double-pole circuit for car lift install 3 120-volt circuits for courtesy outlet(s)
Valuation:
$2,500
Permit #:
25ELE-09167
Status:
complete
Fee:
$237
Permit Type:
Addition
Building Type:
N/A
Install 2 new complete heating and cooling systems 1 at main level - gas 1 at 2nd level - electric repair gas line
Valuation:
$12,000
Permit #:
25MEC-02141
Status:
complete
Fee:
$193
Permit Type:
Replacement
Building Type:
N/A
Replace kitchen cabinets and fixtures. no changes to building lay-out. all smoke detectors to be interconnected
Valuation:
$15,000
Permit #:
24BLD-08466
Status:
complete
Fee:
$193
Permit Type:
Miscellaneous work
Building Type:
N/A
Relocate outlet for exterior kitchen this work is in addition to the description of work listed on permit #24ele-09316
Valuation:
$1,500
Permit #:
25ELE-00219
Status:
complete
Fee:
$87
Permit Type:
Alteration
Building Type:
N/A
Metro park llc hard wire low voltage led sign into junction box with safety switch and existing power. no outlets
Valuation:
$1,700
Permit #:
25ELE-08684
Status:
issued
Fee:
$87
Permit Type:
Replacement
Building Type:
N/A
**apr-accelerated review** new single-family home to be built at 1838 shiloh valley drive wildwood mo 63005
Valuation:
$450,000
Permit #:
23BLD-02512
Status:
issued
Fee:
$2,867
Permit Type:
New construction
Building Type:
N/A
Master bathroom remodel replace exhaust fan relocate 2 switches relocate 2 outlets replace vanity lights
Valuation:
$950
Permit #:
25ELE-02597
Status:
complete
Fee:
$141
Permit Type:
Alteration
Building Type:
N/A
No building scope 10 outlets 10 receptacles (gfci) repair/replace from occupancy inspection report
Valuation:
$1,500
Permit #:
25ELE-05556
Status:
complete
Fee:
$101
Permit Type:
Repair
Building Type:
N/A
Rewire entire home oh service - move mast and meter to opposite side of home 100 openings
Valuation:
$2,500
Permit #:
25ELE-02607
Status:
issued
Fee:
$220
Permit Type:
Alteration
Building Type:
N/A
Replace 100 amp panel that was damaged by fire with new 100 amp panel with all breakers
Valuation:
$1,500
Permit #:
25ELE-08667
Status:
complete
Fee:
$91
Permit Type:
Replacement
Building Type:
N/A
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Gallagher Mechanical Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Gallagher Mechanical License info
Verified License
| License # | HVR-5254 |
| Status | Active |
| County | St Louis County |
| Type | Hvac Service Ins |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Gallagher Mechanical at the Saint Louis County Department of Public Works.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | ES4447 |
| Status | Active |
| County | St Louis County |
| Type | Electrical |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Gallagher Mechanical at the Saint Louis County Department of Public Works.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| County | St. Charles County |
| Type | Electrical Contractor |
- BuildZoom verified this license was active as of May 2026.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | E0735 |
| Status | Active |
| County | Jefferson County |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of Gallagher Mechanical with the Jefferson County Building Division
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | E0735 |
| Status | Active |
| City | Dardenne Prairie |
| Type | Electrical License |
- When BuildZoom last verified this license, it had an expiration date of June, 2022. Check the current license status of Gallagher Mechanical with the City of Dardenne Prairie
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | ELC1669829 |
| Status | Active |
| City | University City |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of Gallagher Mechanical with the City of University City
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | ELC2730400 |
| Status | Active |
| City | University City |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of June, 2024. Check the current license status of Gallagher Mechanical with the City of University City
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | MEC1900704 |
| Status | Active |
| City | University City |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2023. Check the current license status of Gallagher Mechanical with the City of University City
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | E0735 |
| Status | Active |
| City | Dardenne Prairie |
| Type | Electrical License |
- BuildZoom has not verified this license since October, 2024.
Verify this license's status for Gallagher Mechanical at the City of Dardenne Prairie.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| County | St Louis County |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of Gallagher Mechanical with the Saint Louis County Department of Public Works
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| County | St Louis County |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of Gallagher Mechanical with the Saint Louis County Department of Public Works
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | M182 |
| Status | Active |
| County | Jefferson County |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of Gallagher Mechanical with the Jefferson County Building Division
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | MEC1900704 |
| Status | Inactive |
| City | University City |
| Type | Mechanical Contractor |
- According to the City of University City, 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 Gallagher Mechanical at the City of University City.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | St. Charles County |
| Type | Electrical Contractor |
- According to the St. Charles County Department of Development & Business Services, 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 # | ELC1726723 |
| Status | Inactive |
| City | University City |
| Type | Electrical Contractor |
- According to the City of University City, 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 Gallagher Mechanical at the City of University City.
This is a sample of licensing data; click here to access a complete history.
114
BuildZoom Score
255
Permits
- Building permit records show that Gallagher Mechanical has worked on 255 permitted projects.
Gallagher Mechanical Employees
EN
Eric Joseph Nanista
EN
Eric Nanista
Owner
MG
Michael Gallagher
Owner
WA
William Andrews
Owner