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J

Location and Projects

Address
2704 Hampton Ave., St Louis, MO, 63139
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Jw Mechanical, LLC

Jw Mechanical, LLC, 2704 Hampton Ave, St Louis, MO (Owned by: Jim Wisnewski Jr.) holds a Mechanical license and 20 other licenses according to the St Louis County license board.

Their BuildZoom score of 107 ranks in the top 6% of 23,328 Missouri licensed contractors.

Their license was verified as active when we last checked. If you are thinking of hiring Jw Mechanical, LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

Jw Mechanical, LLC Services

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Jw Mechanical, LLC Contact Information

Phone: (618) 772-1958 Edit
Address: 2704 Hampton Ave., St Louis, MO 63139 Edit

Jw Mechanical, LLC St Louis

Quality

107
94th percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
Jw Mechanical, LLC has a BuildZoom score of 107, which places them above 94% of 23,328 contractors in Missouri.

Activity

14 projects
 2025
10 projects
 2024
8 projects
 2023
Our building permit records indicate that Jw Mechanical, LLC has worked on at least 32.0 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.

Experience

4 projects
 Home Additions
18 projects
 Mechanical projects
12 projects
 HVAC projects
Analyzing permits over the last 4 years shows that Jw Mechanical, LLC mostly works on mechanical project and hvac project projects.

Pricing

7 projects
 < $5k
7 projects
 $5k-$20k
12 projects
 $20k-$50k
1 project
 $50k-$100k
1 project
 $100k-$250k
1 project
 $250k-$500k
1 project
 $500k-$1mil
1 project
 $1mil+
Value Not Public: 0 projects
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 Jw Mechanical, LLC

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Mechanical commercial mechanical
10025 Kennerly Rd, Saint Louis, MO, 63128
2025-09-18
Lindbergh school district - gym/storm shelter addition with classroom and lab. renovations to the existing building new hvac equipment. reference building permit number 25bld-03490 for reviewed plans
Valuation:
$1,300,000
Permit #:
25MEC-08207
Status:
issued
Fee:
$6,994
Permit Type:
Addition
Building Type:
N/A
Mechanical commercial mechanical
1020 S Sappington Rd, Saint Louis, MO, 63126
2024-10-22
Crestwood elementary - reference building permit number 24bld-02583. mechanical buildout for new gymnasium including ductless split systems and remote terminal unit. new bathroom and exhaust buildout
Valuation:
$450,000
Permit #:
24MEC-09929
Status:
issued
Fee:
$2,687
Permit Type:
Addition
Building Type:
N/A
Mechanical commercial mechanical
4401 Parker Rd, Black Jack, MO, 63033
2025-09-19
Delmar gardens north - emergency replacement of main dining remote terminal unit includes new transition curb new remote terminal unit low ambient kit hail guards economizer and required piping less than 5
Valuation:
$25,000
Permit #:
25MEC-08231
Status:
issued
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Mechanical commercial mechanical
4505 Parker Rd, Black Jack, MO, 63033
2025-01-08
Garden villas north-emergency replacement of hydronic domestic hot water heating boiler 745 mbh input; 626 mbh output 160 psi working pressure (located in boiler room with ahu)
Valuation:
$30,000
Permit #:
25MEC-00138
Status:
issued
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Mechanical commercial mechanical
1555 Page Industrial Blvd, Saint Louis, MO, 63132
2022-08-24
Alpha pretium packaging - mechanical process water expansion includes (2) cooling towers (3) pump tank skids (1) plate and frame heat exchanger (2) chillers chilled water piping tower water piping process piping compressed air piping chemical feed and trapeze hangers for product piping and electrical piping
Valuation:
$700,000
Permit #:
22MEC-07290
Status:
issued
Fee:
$4,116
Permit Type:
Alteration
Building Type:
N/A
Mechanical commercial mechanical
13330 Lakefront Dr, Earth City, MO, 63045
2022-02-16
Accelerated plan review tight lines plant new location (manufacturer of carbon fiber for wind turbine blades) phase 1: install 209-ton fluid cooler required concrete and structural steel 45-ton chiller 30 hp cooler pump 5 hp chilled water pump air separators chilled water and cooling water piping epoxy bulk tote rack stainless steel piping 2 lines air piping pipe insulation 30 ph vfd ... see more
Valuation:
$500,000
Permit #:
22MEC-00547
Status:
complete
Fee:
$4,612
Permit Type:
Alteration
Building Type:
N/A
Mechanical commercial mechanical
1020 S Sappington Rd, Saint Louis, MO, 63126
2024-10-22
Crestwood elementary - reference building permit: 24bld-05236. replace equipment. piping and ductwork modifications
Valuation:
$450,000
Permit #:
24MEC-09914
Status:
issued
Fee:
$2,687
Permit Type:
Alteration
Building Type:
N/A
Mechanical commercial mechanical
11652 Studt Ave, Saint Louis, MO, 63141
2024-12-18
Animal neurology center - revised p-8 drawing for revisions to reroute piping and addition nitrogen line. med gas piping includes: oxygen and nitrogen piping cleaned and bagged type l copper with brazed fittings. scavenger piping sch 40 pvc. existing permit 24mec-02964 by another mechanical contractor included p-8 and p-9 med gas piping. jw mechanical is doing the med gas piping
Valuation:
$25,000
Permit #:
24MEC-08933
Status:
complete
Fee:
$295
Permit Type:
Alteration
Building Type:
N/A
Mechanical commercial mechanical
13328 Lakefront Dr, Earth City, MO, 63045
2024-04-10
****duplicate permit submitted* this scope of work appears to be the same as 23mec-09493. if these are the requested revisions to 23mec-09493 submit those under that permit. if this is a different scope of work resubmit and specify that in the work description***tight line composites - provide (3) ducted air scrubbers (mounted to existing fcu structure) and connect to (3) galv. steel ... see more
Valuation:
$14,000
Permit #:
24MEC-02843
Status:
canceled
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
Mechanical commercial mechanical
1923 Bowles Ave, Fenton, MO, 63026
2025-08-21
(accelerated plan review) (quiktrip) install condensing units and refrigeration lines for new beverage machines at quiktrip
Valuation:
$35,000
Permit #:
25MEC-04803
Status:
canceled
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Building commercial existing building
13330 Lakefront Dr, Earth City, MO, 63045
2022-11-28
Tightline composites - new modular breakroom and quality lab inside the warehouse at 13328-13330 lakefront drive earth city mo 63045 with fire suppression by fire tech. includes fire alarm work cc-4571 breakroom new construction (porta-king modular building system) cc04466 and cc4502 quality lab being moved from hazelwood plant to new location (porta-king modular building system)
Valuation:
$78,000
Permit #:
22BLD-03478
Status:
issued
Fee:
$645
Permit Type:
Alteration for a ...
Building Type:
N/A
Mechanical commercial mechanical
13328 Lakefront Dr, Earth City, MO, 63045
2023-07-06
Tight line composites-23bld-01894 gc building permit tight line modular offices ph2 - mechanical work: install four (4) 1-ton mini splits for outside air ventilation for modular offices as shown on mechanical drawing mp1.2 and five (5) thru-wall 12, 000 btu heating and air conditioning units for modular offices as shown on portaking drawings for the tight line new modular offices ph2... see more
Valuation:
$25,000
Permit #:
23MEC-06046
Status:
issued
Fee:
$295
Permit Type:
Alteration
Building Type:
N/A
Mechanical commercial mechanical
13328 Lakefront Dr, Earth City, MO, 63045
2023-06-29
***please resubmit and reference the general contractor permit number that the mechanical was approved under. thank you***10o540082-four (4) 1-ton mini splits for outside air ventilation to modular offices ph2 on building permit 23bld-01894 included mechanical drawing mp1.2. (offices: shipping supervisor maintenance and hr addition on) and five (5) thru-wall 12, 000 btu heating and a... see more
Valuation:
$25,000
Permit #:
23MEC-06023
Status:
canceled
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Plumbing commercial plumbing
122 County Center Way, Saint Louis, MO, 63129
2025-10-07
Lenscrafter - remove and replace two sinks in the same location. no new rough-ins. reference building permit number 25bld-04223
Valuation:
$2,000
Permit #:
25PLU-17147
Status:
complete
Fee:
$168
Permit Type:
Replacement
Building Type:
N/A
Mechanical commercial mechanical
13328 Lakefront Dr, Earth City, MO, 63045
2023-10-04
(tight line composites) process ventilation provide (3) ducted air scrubbers (mounted to existing fcu structure) and connect to galv. steel ductwork 20 x 14 with 12 source capture extraction arms with balancing dampers above process line to remove wax fume produced by process line (different work than 23mec-06046)
Valuation:
$14,000
Permit #:
23MEC-09493
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
Mechanical commercial mechanical
10403 Baur Blvd, Saint Louis, MO, 63132
2022-04-19
Ready readers - install 5-ton split system (air handler 5-ton 60, 000 btu & condensing unit 5-ton) under 2, 000 cfm including less than 10 of supply duct for warehouse less than 10 of condensate piping to nearest drain and less than 10 of linesets for humidity control in warehouse
Valuation:
$8,000
Permit #:
22MEC-02824
Status:
issued
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Mechanical commercial mechanical
13330 Lakefront Dr, Earth City, MO, 63045
2022-06-24
Three (3) - thru wall 12, 000 btu heating and air conditioning units for the new modular breakroom and relocated quality control lab to be inside the warehouse plant at 13328 - 13330 lakefront drive. tight line composites moving their plant from hazelwood to earth city. building permit # 22bld-03478 with drawings submitted-tight line composites
Valuation:
$2,000
Permit #:
22MEC-05543
Status:
complete
Fee:
$156
Permit Type:
Alteration
Building Type:
N/A
Mechanical commercial mechanical
11829 Lackland Rd, Saint Louis, MO, 63146
2025-08-05
***cancelled by contractor***(quiktrip) install condensing units and refrigeration piping for new beverage systems
Valuation:
$25,000
Permit #:
25MEC-04805
Status:
canceled
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Mechanical commercial mechanical
4401 Parker Rd, Black Jack, MO, 63033
2024-02-13
Delmar gardens north-emergency replacement of two (2) hot water condensing boilers (ftx400) 399 mbh input 392 mbh output 160 psi working pressure each
Valuation:
$60,000
Permit #:
24MEC-01215
Status:
issued
Fee:
$158
Permit Type:
Replacement
Building Type:
N/A
Mechanical commercial mechanical
1429 S Big Bend Blvd, Saint Louis, MO, 63117
2025-05-05
Mca-replace 2 rtus 7.5-ton each with less than 5 of gas and condensate piping
Valuation:
$30,000
Permit #:
25MEC-03304
Status:
issued
Fee:
$158
Permit Type:
Replacement
Building Type:
N/A

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