Updated: Jun 06, 2026
Location and Projects
Address
5921 n 11th st, Philadelphia, PA, 19019
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3 Ds Mechanical, LLC
3 Ds Mechanical, LLC, 5921 N 11th St, Philadelphia, PA (Owned by: David T. Williams) holds a Plumber license and 2 other licenses according to the Philadelphia license board.
Their BuildZoom score of 109 ranks in the top 5% of 125,106 Pennsylvania licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring 3 Ds Mechanical, LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
3 Ds Mechanical, LLC Contact Information
Phone Number: (215) 432-1787
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Address: 5921 n 11th st, Philadelphia, PA 19019
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3 Ds Mechanical, LLC Philadelphia
Quality
109
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
3 Ds Mechanical, LLC has a BuildZoom score of 109, which places them above 95% of 125,106 contractors in Pennsylvania.
Activity
|
16 projects
|
2025 |
|
26 projects
|
2024 |
|
79 projects
|
2023 |
Our building permit records indicate that 3 Ds Mechanical, LLC has worked on at least
121.0 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
|
25 projects
|
Home Additions |
|
3 projects
|
New Constructions |
|
20 projects
|
HVAC projects |
|
9 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that 3 Ds Mechanical, LLC mostly works on
home addition
and hvac project
projects.
Pricing
|
78 projects
|
< $5k |
|
32 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
|
4 projects
|
$50k-$100k |
|
6 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
The typical size of their permits is approximately $4,500. 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.
For the erection of an attached three story structure for use as a four (4) family household living. building to be sprinklered in accordance with nfpa 13r. all work to be done per approved plans. if field conditions vary contact design engineer prior to the start of any work. **a covered walkway or sidewalk closure shall be required within the building facade in accordance with secti... see more
Valuation:
$400,000
Permit #:
CP-2024-001125
Status:
issued
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
For the addition of three (3) residential units on ground level and level ii alterations to include new partitions stairs fixtures furnishings finishes as per approved plans. separate permits are required for mep and fire suppression work
Valuation:
$200,000
Permit #:
CP-2021-005978
Status:
complete
Fee:
N/A
Permit Type:
Addition and/or a...
Building Type:
N/A
For the installation of registers diffusers and appliances with associated ductwork. appliances to be installed in accordance with the manufacturer’s specifications. all work to be done per approved plans. if field conditions vary contact design engineer prior to the start of any work. separate permits required for all other work
Valuation:
$5,500
Permit #:
MP-2025-004136
Status:
issued
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
Level ii interior alterations (no change in occupancy )to a portion of an exsiting structure. alterations to include installation of new wall partitions provide finishes and furnishings throughout as per approved plans. all work to be done per doh approval and approved plans.** if field conditions vary contact design engineer prior to the start of any work**iebc 2018**existing buildin... see more
Valuation:
$225,000
Permit #:
CP-2023-003509
Status:
issued
Fee:
N/A
Permit Type:
Addition and/or a...
Building Type:
N/A
For the erection of a rear addition and the addition of a roof deck with roof access structure. work to include interior alterations and structural repairs throughout the existing single family dwelling per plans. separate permits required for all associated mep work. basement to remain non-habitable
Valuation:
$226,000
Permit #:
RP-2022-000968
Status:
issued
Fee:
N/A
Permit Type:
Addition and/or a...
Building Type:
N/A
Ez permit stadards alterations- for alterations to an existing one family dwelling as per attached standard. deviations from this standard will result in permit revocation and require submission of construction plans. structural alteration or repair is expressly prohibited under this permit. prohibited structural work includes any modification to exterior walls party walls floor/roof ... see more
Valuation:
$35,000
Permit #:
RP-2024-002595
Status:
complete
Fee:
N/A
Permit Type:
Addition and/or a...
Building Type:
N/A
For the installation of a new plumbing system including all piping and fixtures (installed in accordance with manufacturer’s specifications) throughout an existing five (5) story detached structure to be used as group r-2 (fifty-seven (57) dwelling units) as per plans; see cp-2021-005473 for associated building permit
Valuation:
$200,000
Permit #:
PP-2022-012806
Status:
issued
Fee:
N/A
Permit Type:
Alterations
Building Type:
N/A
For the installation of a plumbing system including all piping and fixtures (installed in accordance with manufacturer’s specifications) throughout an existing four (4) story detached structure to be used as group r-2 (forty-four (44) dwelling units) as per plans; see cp-2021-003513 for associated building permit
Valuation:
$200,000
Permit #:
PP-2022-012773
Status:
issued
Fee:
N/A
Permit Type:
Alterations
Building Type:
N/A
For minor construction work at the subject property in accordance with all applicable provisions of the philadelphia code all references codes and standards and the attached ez standard where included. deviation from this standard shall result in permit revocation. a separate permit from the philadelphia department of streets is required for any sidewalk and street closures. all means... see more
Valuation:
$4,000
Permit #:
PP-2024-006162
Status:
issued
Fee:
N/A
Permit Type:
Alterations
Building Type:
N/A
For the installation of a new hvac system including heat pumps air handlers registers and diffusers with associated ductwork and accessories as per plans
Valuation:
$190,000
Permit #:
MP-2024-000912
Status:
issued
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
For the erection of an attached structure for use as single-family household living. sheeting and shoring as prescribed in geotech report. separate permits required for sprinkler (13d) work. energy code compliance in accordance with 2015 irc. prior to issuance of c/o submittal of air barrier checklist and envelope testing certificate is required. both to be completed by an approved party
Valuation:
$14,500
Permit #:
PP-2021-005846
Status:
complete
Fee:
N/A
Permit Type:
New construction ...
Building Type:
N/A
For the erection of an attached structure for use as single-family household living. sheeting and shoring as prescribed in geotech report. separate permits required for sprinkler (13d) work. energy code compliance in accordance with 2015 irc. prior to issuance of c/o submittal of air barrier checklist and envelope testing certificate is required. both to be completed by an approved party
Valuation:
$14,500
Permit #:
PP-2021-005848
Status:
complete
Fee:
N/A
Permit Type:
New construction ...
Building Type:
N/A
Ez permit ductwork & warm-air appliances - for the installation of new ductwork registers/grilles/diffusers and warm-air appliances as per attached standards. deviations from these standards require submission of construction and site plans. replace hvac system with 65000btu gas fired furnace condenser ductwork and 11 registers
Valuation:
$5,500
Permit #:
MP-2023-000337
Status:
complete
Fee:
N/A
Permit Type:
Addition and/or a...
Building Type:
N/A
Ez permit ductwork & warm-air appliances - for the installation of new ductwork registers/grilles/diffusers and warm-air appliances as per attached standards. deviations from these standards require submission of construction and site plans. each hvac unit to be self-contained within each dwelling unit. no penetrations of rated assemblies. (replace 80, 000btu furnace and 3 ton condenser)
Valuation:
$4,000
Permit #:
MP-2022-003818
Status:
complete
Fee:
N/A
Permit Type:
Addition and/or a...
Building Type:
N/A
Install md ct fai & 4 wdp core 10 hole for sanitary sewer run & connect 10 cast iron lateral to curb trap and connect to main house drain connection. install 2 5 cast iron fai for trap core 10 hole for storm sewer run & connect 10 cast iron lateral to curb trap and connect to main house drain connection. install 2 5 cast iron fai for trap connect 4 wdp from curb in
Valuation:
$80,000
Permit #:
PP-2023-008131
Status:
complete
Fee:
N/A
Permit Type:
Alterations
Building Type:
N/A
For level ii alterations with no change in occupancy per approved plans. separate permits required for mechanical electrical plumbing and fire suppression work
Valuation:
$50,000
Permit #:
CP-2025-003403
Status:
issued
Fee:
N/A
Permit Type:
Addition and/or a...
Building Type:
N/A
Install 4 inch water service 21 water closets 21 lavatories 21 shower/tub 16 hot water heaters 16 washing machine boxes 16 kitchen sinks 9 storm drains and 1 backflow preventer according to the 2018 ppc and per plans
Valuation:
$125,000
Permit #:
PP-2023-005247
Status:
canceled
Fee:
N/A
Permit Type:
Alterations
Building Type:
N/A
New construction of a three(3) story building for a single-family household living with a roof deck and roof deck access structure as per approved plans.** building to be fully sprinklered per nfpa 13d**separate permits required for mechanical, electrical, plumbing & fire suppression work**irc 2015** see ap#1011399 for approved plans**
Valuation:
$250,000
Permit #:
1017369
Status:
complete
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
New construction of a three(3) story building for a single-family household living with a roof deck and roof deck access structure as per approved plans.** building to be fully sprinklered per nfpa 13d**separate permits required for mechanical, electrical, plumbing & fire suppression work**irc 2015**
Valuation:
$250,000
Permit #:
1011399
Status:
complete
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
For the erection of a three (3) story structure with roof deck; for use as a single family dwelling. separate permit required for mep and fire suppression work
Valuation:
$250,000
Permit #:
1011400
Status:
complete
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
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3 Ds Mechanical, LLC Reviews
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Verified License
BuildZoom confirmed this contractor's license
3 Ds Mechanical, LLC License info
Verified License
| HIC # | 47103 |
| Status | Active |
| City | Philadelphia |
| Type | Plumber |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for 3 Ds Mechanical, LLC at the City of Philadelphia Licensed Contractors.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| HIC # | PA118947 |
| Status | Active |
| State | Pennsylvania |
- When BuildZoom last verified this license, it had an expiration date of January, 2026. Check the current license status of 3 Ds Mechanical, LLC with the Pennsylvania Office of the Attorney General
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| HIC # | PA118947 |
| Status | Active |
| State | Pennsylvania |
| Type | Plumbing, Heating , General Contracting |
- When BuildZoom last verified this license, it had an expiration date of August, 2017. Check the current license status of 3 Ds Mechanical, LLC with the Pennsylvania Office of the Attorney General
This is a sample of licensing data; click here to access a complete history.
109
BuildZoom Score
Insured
| Insurer | Hiscox Insurance Company |
| Insured up to | $300,000 |
199
Permits
- Building permit records show that 3 Ds Mechanical, LLC has worked on 199 permitted projects.
3 Ds Mechanical, LLC Employees
3L
3 Ds Mechanical Llc
DW
David T. Williams
Owner