Updated: Jun 12, 2026
Location and Projects
Address
638 Lemay Ferry Rd, Saint Louis, MO, 63125
Use our bidding system to
request a quote
Jt Dunn Climate Control Photos
Jt Dunn Climate Control HVAC/Mechanical Contractor
J.T. McDermott Remodeling Contractors is a full-service design-build remodeling firm that has been designing and remodeling clients' dream spaces for over 20 years. They have developed many long-term relationships with their clients that have spanned their entire time in business. Their team include
From BuildZoom: Jt Dunn Climate Control, 638 Lemay Ferry Rd, St. Louis, MO (Owned by: Brett Nejmanowski) holds a Plumber license and 16 other licenses according to the St Louis County license board.
Their BuildZoom score of 119 ranks in the top 1% of 23,328 Missouri licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Jt Dunn Climate Control, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Jt Dunn Climate Control Contact Information
Phone Number: (314) 809-3019
Address: 638 Lemay Ferry Rd, St. Louis, MO 63125
Jt Dunn Climate Control St. Louis
Quality
119
99th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Jt Dunn Climate Control has a BuildZoom score of 119, which places them above 99% of 23,328 contractors in Missouri.
Activity
|
40 projects
|
2025 |
|
32 projects
|
2024 |
|
31 projects
|
2023 |
Our building permit records indicate that Jt Dunn Climate Control has worked on at least
103.0 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
|
11 projects
|
Home Additions |
|
3 projects
|
New Constructions |
|
59 projects
|
Mechanical projects |
|
45 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Jt Dunn Climate Control mostly works on
mechanical project
and hvac project
projects.
Pricing
|
35 projects
|
< $5k |
|
43 projects
|
$5k-$20k |
|
9 projects
|
$20k-$50k |
|
7 projects
|
$50k-$100k |
|
8 projects
|
$100k-$250k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $6,950. 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 Jt Dunn Climate Control
This is a sample of this contractor's permits. Click here to access their complete permit history.
Run sch 40 pvc sanitary piping and upinor per pipe to 1- toilet and lavatory powder room on 1st floor 1- island kitchen sink and to 1- toilet 1- lavatory and 1- tub or shower on 2nd floor. and install 1- 2” trap in basement for laundry
Valuation:
$6,450
Permit #:
25PLU-01286
Status:
issued
Fee:
$115
Permit Type:
Alteration
Building Type:
N/A
Pbr - 10 roofttop units ((8) 10 tons and (2) 7.5 tons with 10 fresh air dampers
Valuation:
$189,748
Permit #:
25MEC-01298
Status:
issued
Fee:
$425
Permit Type:
Replacement
Building Type:
N/A
2nd floor scope of work: (1) trane run tru 3.0 ton 16 seer condenser (1) trane run tru 80, 000 btu variable speed 80% furnace (1) trane run tru 3.0 ton aluminum coil (1) digital non-programmable thermostats (1) condenser pad (1) copper refrigerant line set (1) bathroom exhaust duct 1st floor scope of work: * remove existing 2nd floor system in basement and all existing ducts * modify ... see more
Valuation:
$26,450
Permit #:
24MEC-02690
Status:
complete
Fee:
$274
Permit Type:
Replacement
Building Type:
N/A
Basement finish - 2x4 frame (1) rec room (1) bedroom and (1) full bathroom in existing walk out basement. adding (2) egress windows on existing 2x4 framed walkout wall at the bedroom location. drywall finish walls and ceiling. carpet flooring
Valuation:
$50,000
Permit #:
23BLD-00434
Status:
complete
Fee:
$316
Permit Type:
Interior finish
Building Type:
N/A
Connect existing laundry stand pipe and floor drain back to main stack with sch 40 pvc replace (1) full stack and (1) half stack
Valuation:
$3,800
Permit #:
25PLU-06725
Status:
complete
Fee:
$85
Permit Type:
Replacement
Building Type:
N/A
Remove and replace rear addition
Valuation:
$170,451
Permit #:
24BLD-08754
Status:
complete
Fee:
$814
Permit Type:
Addition
Building Type:
N/A
Removal of load bearing quadruple 2x10 beam with extended triple lvl 2x16 beam for open floor plan. engineer details and seal will be attached with plans. general kitchen remodel
Valuation:
$50,000
Permit #:
23BLD-01677
Status:
complete
Fee:
$317
Permit Type:
Alteration for th...
Building Type:
N/A
Kitchen - new cabinets countertop sink faucet. same appliances including electric stove master & hall bathroom - modernize with new tiling sink faucets shower head vanities. same tub toilets shower pan attached garage - update to return living space back to garage by removing partition wall floating floor electric fireplace and exterior wall built within the original framing of garage... see more
Valuation:
$6,500
Permit #:
23BLD-01217
Status:
complete
Fee:
$156
Permit Type:
Interior finish
Building Type:
N/A
- hot/cold water shut off valves installed in two bathrooms - fire stopping items (escutcheon plate?) under the sinks - a trim ring around the drain pipe and water lines in one bathroom - need to replace the hot water heather pressure relief pipe with a metallic one - lastly i need a separate gas shut off valve installed for the hot water heater
Valuation:
$700
Permit #:
23PLU-14336
Status:
issued
Fee:
$79
Permit Type:
Repair
Building Type:
N/A
Main bathroom - replace shower valve spout head & waste/overflow - set 4 fixtures master bathroom - exhaust vent plumbing for new toilet lavatory shower set & trim fixtures plumbing for washing machine install kitchen sink disposal dishwasher water line to ice maker'gas line to range & dryer dryer exhaust vent stack
Valuation:
$19,375
Permit #:
22PLU-15330
Status:
complete
Fee:
$251
Permit Type:
Interior finish
Building Type:
N/A
Extend a gas line to the range in ss flex tubing with isolation valve at stove. provide and install sump pump. pipe sump pump through wall and into downspout. installation of 2-40 gallon gas water heaters. modify the waste vent and water lines for a toilet lavatory kitchen sink bar sink and shower. installation of rainfall shwoer head
Valuation:
$9,100
Permit #:
22PLU-09520
Status:
complete
Fee:
$227
Permit Type:
Miscellaneous work
Building Type:
N/A
Elite warehouse llc - 4 split systems with ductwork
Valuation:
$104,067
Permit #:
25MEC-02110
Status:
issued
Fee:
$823
Permit Type:
New construction
Building Type:
N/A
Kitchen and (2) bathroom remodel
Valuation:
$126,850
Permit #:
24BLD-09031
Status:
complete
Fee:
$656
Permit Type:
Interior finish
Building Type:
N/A
2.5 ton air conditioning and air handler 10 kw heat kit refrigerant lines and duct work
Valuation:
$18,850
Permit #:
25MEC-00128
Status:
issued
Fee:
$208
Permit Type:
Addition
Building Type:
N/A
***please provide tenant name since your type of work is tenant finish. also mark if it is a new tenant or existing tenant. may require plans for review. please contact mike ochonicky at 314-615-3764 or
Valuation:
$1,850
Permit #:
24PLU-16531
Status:
canceled
Fee:
N/A
Permit Type:
Interior finish
Building Type:
N/A
We are doing a kitchen remodel. demolish of current kitchen and then new cabinets/counter/sink electrical (new wiring) minimal plumbing floors light fixtures install appliances. no walls are moving
Valuation:
$40,000
Permit #:
22BLD-03868
Status:
complete
Fee:
$276
Permit Type:
Interior finish
Building Type:
N/A
Remove or cut the back side of kitchen cabinets and install a 2” sanitary tee and run a 1-1/2” drain line to inside kitchen sink
Valuation:
$1,175
Permit #:
25PLU-19582
Status:
complete
Fee:
$91
Permit Type:
Repair
Building Type:
N/A
Partial basement finish of a family room and an office. 2x4 wood stud construction with 1/2 drywall on walls and ceilings. carpet flooring. lighting and outlets in each room
Valuation:
$45,275
Permit #:
23BLD-07021
Status:
complete
Fee:
$299
Permit Type:
Interior finish
Building Type:
N/A
(qpr) 2.0 ton air conditioning air handler 10 kw heat kit (2) 4 bathroom exhaust (1) 4 dryer vent new duct below celling down hallway
Valuation:
$26,000
Permit #:
ME24-000015
Status:
issued
Fee:
N/A
Permit Type:
Single family alt...
Building Type:
N/A
(wyw) (25vio-00225) (ecotech) installing two minisplit outdoor units with one head each
Valuation:
$17,000
Permit #:
25MEC-08088
Status:
issued
Fee:
$861
Permit Type:
Alteration
Building Type:
N/A
Jt Dunn Climate Control Reviews
BuildZoom hasn't received any reviews for Jt Dunn Climate Control. Click here to be alerted when reviews are posted about them.
Verified License
BuildZoom confirmed this contractor's license
Jt Dunn Climate Control License info
Verified License
| License # | P7241 |
| Status | Active |
| County | St Louis County |
| Type | Plumber |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Jt Dunn Climate Control 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 # | HVR-5347 |
| Status | Active |
| County | St Louis County |
| Type | Hvac Service Ins |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Jt Dunn Climate Control at 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 # | MEC9476136 |
| Status | Active |
| City | University City |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2025. Check the current license status of Jt Dunn Climate Control with the City of University City
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| County | St Louis County |
| Type | Plumber |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of Jt Dunn Climate Control 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 | Plumbers |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of Jt Dunn Climate Control 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 Jt Dunn Climate Control 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 |
| City | Town And Country |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of Jt Dunn Climate Control with the City of Town and Country
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | M263 |
| Status | Active |
| County | Jefferson County |
| Type | Mechanical |
- BuildZoom has not verified this license since January, 2017.
Verify this license's status for Jt Dunn Climate Control at the Jefferson County Building Division.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | St. Charles County |
| Type | Mechanical |
- 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | St. Charles County |
| Type | Plumbing 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | St. Charles County |
| Type | Plumbing 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | St. Charles County |
| Type | Mechanical |
- 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | S7811 |
| Status | Inactive |
| County | St Louis County |
| Type | Structural |
- According to the Saint Louis County Department of Public Works, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Jt Dunn Climate Control at the Saint Louis County Department of Public Works.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | St. Charles County |
| Type | Plumbing 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | St. Charles County |
| Type | Mechanical |
- 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | MEC9476136 |
| 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.
Check this license's status for Jt Dunn Climate Control 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 | Mechanical |
- 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.
This is a sample of licensing data; click here to access a complete history.
119
BuildZoom Score
465
Permits
- Building permit records show that Jt Dunn Climate Control has worked on 465 permitted projects.
Jt Dunn Climate Control Employees
BN
Brett Nejmanowski
Owner