Updated: Dec 16, 2025
Location and Projects
Address
34400 Glendale St, Livonia, MI, 48150
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Guardian plumbing & Heating Photos
Guardian plumbing & Heating
Guardian Plumbing & Heating, Inc. located in Livonia, Michigan is one of the Detroit area’s leading full-service plumbing contractors for healthcare, commercial, and institutional service. As a second-generation business with over 40 years experience, we offer excellent craftsmanship and outstanding service.
From BuildZoom: Guardian plumbing & Heating, 34400 Glendale St, Livonia, MI (Owned by: Guardian Plbg & Htg Inc) holds a Plumbing Contractor license and 5 other licenses according to the Michigan license board.
Their BuildZoom score of 109 ranks in the top 5% of 167,179 Michigan licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Guardian plumbing & Heating, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Guardian plumbing & Heating Services
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Guardian plumbing & Heating Contact Information
Phone Number: (734) 513-9550
Address: 34400 Glendale St, Livonia, MI 48150
Building Permits by Guardian plumbing & Heating
This is a sample of this contractor's permits. Click here to access their complete permit history.
Includes installing three shower drains seven sink drains and a dedicated washing machine drain line. additionally water supply lines will be installed for a dishwasher and a refrigerator. a new hot water tank will be installed including all necessary connections to the water supply and drainage system
Valuation:
N/A
Permit #:
PP25-025
Status:
issued
Fee:
$390
Permit Type:
plumbing upgrade
Building Type:
N/A
Route the hot water cold water sanitary and vent piping per the drawings for two sk-1 sinks. reinstall existing two (2) new sk-1 sinks and faucets per the drawings. insulate the water pipes. rough sanitary aav hot and cold water for two (2) wall-hung lavs in the existing wall. sanitary tie into lab 93. furnish and install two (2) china wall hung lav with chicago faucets
Valuation:
N/A
Permit #:
PP23-60019
Status:
final
Fee:
$215
Permit Type:
plumbing
Building Type:
N/A
* replacment of 40 gal. water heater in janitors closet _____________________________________ water heater (1) contractor registration * registration expires: 4-30-2025
Valuation:
N/A
Permit #:
PP24-046
Status:
final
Fee:
$110
Permit Type:
Misc
Building Type:
N/A
Furnish & install compressed air system and (3) sterilizers (marked as boilers on application but they are not boilers) for phase 2a (of 4 phase project) remodel existing surgery center - renovation to existing surgery center to re-locate sterilization equirpment and storage areas and addition an operating room
Valuation:
N/A
Permit #:
PMEC2022-01330
Status:
issued
Fee:
$190
Permit Type:
Alteration
Building Type:
N/A
Demolish three (3) sinks. furnish and install two (2) ao smith del-6 gallon water heaters and one (1) del-20 gallon water heater. the water heater pans to remain. re-rough plumbing in rooms 3018 and 3003 hot cold water and drain. run cold water in room 3003 for two (2) ice maker boxes. hood up two (2) ice bins. hook up one (1) dishwasher. hook up three (3) coffee makers
Valuation:
N/A
Permit #:
PP22-60282
Status:
approved
Fee:
$370
Permit Type:
plumbing
Building Type:
N/A
Plumbing fixtures to be as follows: two (2) sk-1 complete with an emergency eyewash station. one (1) hub opening for air conditioning drain. one (1) 10-gallon electric water heater. one (1) water meter. one (1) rpz with certification. piping to one (1) air conditioning unit water supply and drain piping complete with water meter and rpz backflow preventer. pipe insulation included
Valuation:
N/A
Permit #:
PP22-60281
Status:
approved
Fee:
$230
Permit Type:
plumbing
Building Type:
N/A
Provide plumbing demolish coring fire-stopping and pipe insulation. this is a plan and spec quotation. sanitary and water to tie into existing as shown. stack and vent no hub piper and fittings. water piping pro-press l copper. included-pipe insulation on hot and cold domestic water piping
Valuation:
N/A
Permit #:
PP22-60209
Status:
applied
Fee:
$130
Permit Type:
plumbing
Building Type:
N/A
Warehouse b enter & turn right look just beyond 1st steel beam: 2 copper added tee and 90; 3/4 copper aprox 10 to hose bibb. ***see don fraser 586-321-2500***
Valuation:
N/A
Permit #:
PP2023-0026
Status:
final
Fee:
$85
Permit Type:
Add/alter/repair
Building Type:
N/A
Gas piping for 2 water heaters and 5 furnaces. construction of a new 8, 674 sf. new recovery residence on the existing ascension brighton recovery center campus. i-2 use fully suppressed. 3rd party for all soil bearing concrete work and structural steel
Valuation:
N/A
Permit #:
PMEC2022-03413
Status:
issued
Fee:
$135
Permit Type:
N/A
Building Type:
N/A
Mezzanines east & west: --east mezzanine softener isolate and remove existing reduced pressure zone backflow preventer (rpz); provide and install replacement rpz with integral isolation valves and fixed air gap and drain piping (to floor elevation); provide and install one (1) additional isolation valve closer to backflow location; provide and install one (1) inline strainer; provide ... see more
Valuation:
N/A
Permit #:
PP21-0465
Status:
issued
Fee:
$70
Permit Type:
plumbing
Building Type:
N/A
Replacement of a second water heater in 2nd floor mechanical room
Valuation:
N/A
Permit #:
PPLM2025-00117
Status:
issued
Fee:
$85
Permit Type:
N/A
Building Type:
N/A
Install wc lav carrier ewc-bi-level fm sk-1 w/disposal dishwasher connection ice/coffee maker db-1 wall box water piping condensate piping gas train conn 1-1/4 demolish fixtures
Valuation:
N/A
Permit #:
PP22-0494
Status:
issued
Fee:
$178
Permit Type:
Add/alter/repair
Building Type:
N/A
New water service existing dte substation on well
Valuation:
N/A
Permit #:
PSW25-0051
Status:
issued
Fee:
$5,708
Permit Type:
Sewer & water
Building Type:
N/A
1 catch basin 2 lavatories 2 toilets 14 sinks 2 water heaters work on mob 5th floor
Valuation:
N/A
Permit #:
PP240015
Status:
final
Fee:
$379
Permit Type:
plumbing
Building Type:
N/A
Ems room install kitchenette: tie into piping in adjacent restroom; prep for sink; ice maker; coffee maker; non-testable bfp; tie in to sanitary drain; utilize proper hangers & insulation on piping; verify proper operation
Valuation:
N/A
Permit #:
PP21-0266
Status:
applied
Fee:
$83
Permit Type:
plumbing
Building Type:
N/A
Replacement of rpz on lawn irrigation on south side of performing arts building
Valuation:
N/A
Permit #:
PP23-0745
Status:
final
Fee:
$82
Permit Type:
plumbing
Building Type:
N/A
(1) fixture: replace 10 gallon water heater
Valuation:
N/A
Permit #:
PP250013
Status:
issued
Fee:
$120
Permit Type:
plumbing
Building Type:
N/A
Installation of new backflow preventor for lawn
Valuation:
N/A
Permit #:
PP24-0577
Status:
final
Fee:
$85
Permit Type:
plumbing
Building Type:
N/A
Replace 0.75 lawn irrigation pvb • isolate and remove existing pvb on lawn irrigation system; • provide and install replacement pvb; • re-pipe to accommodate the installation noted above; • test and certify pvb
Valuation:
N/A
Permit #:
PPLM2021-02351
Status:
final
Fee:
$65
Permit Type:
Alteration
Building Type:
N/A
Replacement of water heater located in restroom ceiling of mercy elite
Valuation:
N/A
Permit #:
PP24-0262
Status:
final
Fee:
$70
Permit Type:
Water heater - pl...
Building Type:
N/A
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Verified License
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Guardian plumbing & Heating License info
Verified License
| License # | 8001895 |
| Status | Active |
| State | Michigan |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Guardian plumbing & Heating at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 7119278 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom has not verified this license since June, 2025.
Verify this license's status for Guardian plumbing & Heating at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 8001895 |
| Status | Active |
| State | Michigan |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of April, 2025. Check the current license status of Guardian plumbing & Heating with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 7101359 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2025. Check the current license status of Guardian plumbing & Heating with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 313171 |
| Status | Active |
| State | Michigan |
| Type | Boiler Installer |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of Guardian plumbing & Heating with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CONT-3152 |
| Status | Inactive |
| City | Ann Arbor |
| Type | Contractor |
- According to the The City of Ann Arbor, MI, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Guardian plumbing & Heating at the The City of Ann Arbor, MI.
This is a sample of licensing data; click here to access a complete history.
109
BuildZoom Score
816
Permits
- Building permit records show that Guardian plumbing & Heating has worked on 816 permitted projects.
Guardian plumbing & Heating Employees
AA
Anthony D Ascenzo
Owner
AD
Anthony Dascenzo
Owner
AD
Anthony Dascenzo
AA
Anthony M D Ascenzo
GI
Guardian Plbg & Htg Inc
Owner
LD
Larry Dascenzo
Owner
LD
Larry A Dascenzo
SD
Steve D Doss