Updated: May 19, 2026
Location and Projects
Address
41 Rivers Ln, Melrose, MA, 02176
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Derenzis Mechanical
Derenzis Mechanical, 41 Rivers Ln, Melrose, MA holds a Sheet Metal license and 8 other licenses according to the Massachusetts license board.
Their BuildZoom score of 101 ranks in the top 12% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Derenzis Mechanical, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Derenzis Mechanical Services
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Derenzis Mechanical Contact Information
Phone Number: (781) 979-9449
Address: 41 Rivers Ln, Melrose, MA 02176
Derenzis Mechanical Melrose
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Derenzis Mechanical has a BuildZoom score of 101, which places them above 88% of 139,240 contractors in Massachusetts.
Activity
|
1 project
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Derenzis Mechanical has worked on at least
6.0 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
|
6 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Derenzis Mechanical mostly works on
hvac project
projects.
Pricing
|
1 project
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
The typical size of their permits is approximately $22,500. 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.
Install a new air handler in the attic with all necessary associated duct work. install a new condenser on side rear of the home. no structural or electric work included. any electrical is by others *all work must comply with 780 cmr and brookline zoning by-laws
Valuation:
$24,000
Permit #:
MP-2022-000281
Status:
complete
Fee:
$480
Permit Type:
N/A
Building Type:
N/A
Install radiant heat pex circuits in the kitchen and mudroom. locate and install pex manifold in the basement area directly underneath kitchen. any line voltage electrical work by licensed electrician. compliant with 780 cmr and brookline zoning by laws
Valuation:
$14,000
Permit #:
MP-2021-000428
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
N/A
Install (7) outdoor heat pumps & (7) indoor air handlers to existing duct systems for (7) ground floor units -g01 g03 g05 g07 g04 g10 g14
Valuation:
N/A
Permit #:
P202540470
Status:
issued
Fee:
$1,540
Permit Type:
N/A
Building Type:
N/A
Install a kitchen vent hood with outside vent outlet. install make up air circuit with outdoor intake. connect and interlock to basement air handler return duct. compliant with 780 cmr and brookline zoning by laws
Valuation:
$4,000
Permit #:
MP-2022-000144
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Remove existing flexible duct branches. install new duct branches referencing mea engineering hvac plan. addition all new drop in registers
Valuation:
$20,000
Permit #:
SMP-2023-1231
Status:
issued
Fee:
$312
Permit Type:
HVAC
Building Type:
Office
Install air handler in attic to service attic and second floor install lower level air handler to service lower level and 1st fl install all associate duct work. all bathroom and kitchen ventilation
Valuation:
$18,000
Permit #:
21050658
Status:
filed
Fee:
$360
Permit Type:
N/A
Building Type:
N/A
Install air handlers in attic and basement with all associated trunks branches and registers install 2 condensers bathroom exhaust kitchen vent hood and dryer circuits
Valuation:
$24,000
Permit #:
21110184
Status:
filed
Fee:
$480
Permit Type:
N/A
Building Type:
N/A
Install air handlers and ductwork for attic 2nd fl basement and 1st fl. install (2) condensers and install bathroom and kitchen exhaust systems
Valuation:
$12,000
Permit #:
21040946
Status:
complete
Fee:
$240
Permit Type:
N/A
Building Type:
N/A
Install two air handlers and two condensers with all associated duct work in basement and second floor. install a ductless unit in the living room
Valuation:
$18,500
Permit #:
M-20-0022
Status:
complete
Fee:
$152
Permit Type:
HVAC
Building Type:
1-2 family
Installing sheetmetal and duct work only equip. by others
Valuation:
$30,000
Permit #:
SH-22-0285
Status:
final
Fee:
$350
Permit Type:
HVAC
Building Type:
Retail
Install new 5 ton bosch air handler and heat pump with all assocaited duct work
Valuation:
$21,000
Permit #:
B-23-1145
Status:
issued
Fee:
N/A
Permit Type:
Sheet metal
Building Type:
N/A
Install air conditioning. to supply 1st and 2nd floor with associated duct work
Valuation:
$7,500
Permit #:
MP-2015-0138
Status:
complete
Fee:
$160
Permit Type:
N/A
Building Type:
N/A
Install duct work and air handlers for first and second floor. install bathroom laundry room and exhaust systems
Valuation:
$17,000
Permit #:
20060741
Status:
complete
Fee:
$340
Permit Type:
N/A
Building Type:
N/A
Building a masonry patio area with a masonry block set up for gas grill. as-built req'd upon completion
Valuation:
$15,000
Permit #:
20090577
Status:
complete
Fee:
$300
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$40,000
Permit #:
SMP-2023-40
Status:
issued
Fee:
$400
Permit Type:
HVAC
Building Type:
N/A
Install a furnace in the unoccupied attic. install associated ducts pipes and trunk to service the 2nd floor apartment only. no electrical plumbing or structural work on this permit
Valuation:
$2,000
Permit #:
SF801946
Status:
filed
Fee:
$40
Permit Type:
N/A
Building Type:
1-2fam
Install retaining walls at rear and side yards per plan by richard e. bushnell p.e dated october 31/18
Valuation:
$27,000
Permit #:
BP-2018-001991
Status:
complete
Fee:
$540
Permit Type:
N/A
Building Type:
N/A
Replace 2 bedroom ceilings with type x sheetrock reroute dryer exhaust replace water-damaged section of wall in rear room
Valuation:
$4,950
Permit #:
BP-2015-0302
Status:
complete
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$38,000
Permit #:
SMP-2022-61
Status:
issued
Fee:
$380
Permit Type:
HVAC
Building Type:
N/A
Install 2 air handlers 2 condensers all associated ducts hrv unit & all bathroom & kitchen vents. condensers cannot be in setback
Valuation:
$9,500
Permit #:
18010479
Status:
complete
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
Derenzis Mechanical Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Derenzis Mechanical License info
Verified License
| License # | 7264 |
| Status | Active |
| State | Massachusetts |
| Type | Sheet Metal |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Derenzis Mechanical at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CS-079433 |
| Status | Active |
| State | Massachusetts |
| Type | Building Licenses, Construction Supervisor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Derenzis Mechanical at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 106403 |
| Status | Active |
| City | Newton |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Derenzis Mechanical with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 106403 |
| Status | Active |
| City | Newton |
| Type | General Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Derenzis Mechanical with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 7264 |
| Status | Active |
| City | Newton |
| Type | Sheetmetal Contractor |
- When BuildZoom last verified this license, it had an expiration date of October, 2022. Check the current license status of Derenzis Mechanical with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 172704 |
| Status | Inactive |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- According to the Mass.gov Consumer Affairs and Business Regulation, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Derenzis Mechanical at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 163936 |
| Status | Inactive |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- According to the Mass.gov Consumer Affairs and Business Regulation, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Derenzis Mechanical at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 145146 |
| Status | Inactive |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- According to the Mass.gov Consumer Affairs and Business Regulation, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Derenzis Mechanical at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 183599 |
| Status | Inactive |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- According to the Mass.gov Consumer Affairs and Business Regulation, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Derenzis Mechanical at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
48
Permits
- Building permit records show that Derenzis Mechanical has worked on 48 permitted projects.