Updated: Jun 29, 2026
Location and Projects
Address
2413 W Algonquin Rd, Lake In The Hills, IL, 60102
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Collins Backflow Plumber
Collins Backflow Specialists have been in business for over 25 years. We can help with all of your backflow needs. Whether it is an commercial, industrial, residential, or institutional we offer whatever your needs are for Cross Connection or Backflow protection. We do it all, Testing and Certification, Repair, and Replacement.
From BuildZoom: Collins Backflow, 2413 W Algonquin Rd, Lake in the Hills, IL holds a C3 license and 6 other licenses according to the Evanston license board.
Their BuildZoom score of 98 ranks in the top 16% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Collins Backflow, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Collins Backflow Services
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Collins Backflow Contact Information
Phone Number: (847) 358-1666
Address: 2413 W Algonquin Rd, Lake in the Hills, IL 60102
Collins Backflow Lake in the Hills
Quality
98
84th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Collins Backflow has a BuildZoom score of 98, which places them above 84% of 65,686 contractors in Illinois.
Activity
|
1 project
|
2025 |
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Collins Backflow has worked on at least
3.0 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
|
3 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Collins Backflow mostly works on
plumbing project
projects.
Pricing
|
1 project
|
$5k-$20k |
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.
: water refrigeration and pump upgrade to printing press (after the fact) - install rpz
Valuation:
N/A
Permit #:
24-0608-REPR
Status:
final
Fee:
$80
Permit Type:
N/A
Building Type:
Building use group
Underground lawn sprinkler system and rpz backflow device
Valuation:
N/A
Permit #:
23-05666
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$7,000
Permit #:
RMIS-0592-2023
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Reverse pressure zone/backflow preventer
Valuation:
$6,400
Permit #:
22-00003728|LSP00
Status:
applied
Fee:
N/A
Permit Type:
Lawn sprinkler re...
Building Type:
N/A
Reverse pressure zone/backflow preventer
Valuation:
$5,800
Permit #:
21-00005645|LSP00
Status:
applied
Fee:
N/A
Permit Type:
Lawn sprinkler re...
Building Type:
N/A
Replace frozen rpz on lawn irrigation system with a new rpz
Valuation:
N/A
Permit #:
18CCCD-0060
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Install new 3/4 rpz on boiler
Valuation:
N/A
Permit #:
19CCCD-0005
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
U/g lawn irrigation system
Valuation:
$4,800
Permit #:
18-LAW-0016
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install underground lawn irrigation system
Valuation:
$4,000
Permit #:
19-02913
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new rpz on the boiler makeup lines to two boilers
Valuation:
N/A
Permit #:
16CCCD-0098
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Install new 2 rpz on existing domestic water service
Valuation:
N/A
Permit #:
17CCCD-0031
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Install a new rpz on the makeup line to the boiler
Valuation:
N/A
Permit #:
16CCCD-0099
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Remove and replace rpz on existing lawn irrigation system
Valuation:
N/A
Permit #:
16CCCD-0075
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Installation of backflow device
Valuation:
N/A
Permit #:
16CCCD-0018
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Install 1/2 rpz on boiler make up
Valuation:
N/A
Permit #:
16CCCD-0156
Status:
filed
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Install 1/2 rpz on boiler
Valuation:
N/A
Permit #:
16CCCD-0164
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Replace backflow device
Valuation:
N/A
Permit #:
16CCCD-0050
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Install rpz on boiler make up line
Valuation:
N/A
Permit #:
13CCCD-0199
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Rpz on boiler
Valuation:
N/A
Permit #:
13CCCD-0230
Status:
complete
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
Two rpz installed for miscelaneous work
Valuation:
N/A
Permit #:
12CCCD-0110
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Collins Backflow Reviews
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Verified License
BuildZoom confirmed this contractor's license
Collins Backflow License info
Verified License
| License # | 11LIC3-0027 |
| Status | Active |
| City | Evanston |
| Type | C3 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Collins Backflow at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| Town | Palatine |
| Type | Plumbing |
- When BuildZoom last verified this license, it had an expiration date of December, 2021. Check the current license status of Collins Backflow with the Village of Palatine Registered Contractors
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | BC15730 |
| Status | Inactive |
| City | City Of Chicago |
| Type | Plumbing Contractor |
- According to the City of Chicago Data Portal, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Collins Backflow at the City of Chicago Data Portal.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR8236 |
| Status | Inactive |
| County | Dupage County |
| Type | Plumbing |
- According to the County of Dupage Contractor Registration Information, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Collins Backflow at the County of Dupage Contractor Registration Information.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR8236 |
| Status | Inactive |
| County | Dupage County |
| Type | Sub Contractor, Plumbing |
- According to the County of Dupage Contractor Registration Information, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Collins Backflow at the County of Dupage Contractor Registration Information.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | City Of Chicago |
| Type | Bonded Contractor |
- According to the City of Chicago Data Portal, 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 | Cook County |
| Type | Plumbing |
- According to the Cook County Department of Building and Zoning, 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.
98
BuildZoom Score
54
Permits
- Building permit records show that Collins Backflow has worked on 54 permitted projects.