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Location and Projects

Address
105 Harvard St, Waltham, MA, 02453
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Calnan's Energy Systems Construction

Calnan's Energy Systems Inc, 105 Harvard St, Waltham, MA (Owned by: Bob Calnan) holds a Home Improvement Contractor license and 2 other licenses according to the Massachusetts license board.

Their BuildZoom score of 105 ranks in the top 8% of 139,240 Massachusetts licensed contractors.

Their license was verified as active when we last checked. If you are thinking of hiring Calnan's Energy Systems Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

Calnan's Energy Systems Inc Contact Information

Address: 105 Harvard St, Waltham, MA 02453

Calnan's Energy Systems Inc Waltham

Quality

105
92nd percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
Calnan's Energy Systems Inc has a BuildZoom score of 105, which places them above 92% of 139,240 contractors in Massachusetts.

Activity

3 projects
 2025
4 projects
 2024
8 projects
 2023
Our building permit records indicate that Calnan's Energy Systems Inc has worked on at least 15.0 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.

Pricing

2 projects
 $20k-$50k
Value Not Public: 13.0 projects
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.

Calnan's Energy Systems Inc Reviews
5 out of 5 stars, based on 1 review

  • By Burt
    August 3, 2017
    Verified Hire

    The attic insulation was completed professionally and I would recommend Calnan to a friend. Be aware though that Calnan is not part of the Mass Save program which partly subsidizes such a project. I was aware of this before I signed a contract as I was not looking for any monies from Mass Save.
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Building Permits by Calnan's Energy Systems Inc

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Residence reno
40 Eaton Rd W, Framingham, MA
2025-01-13
Insulate open attic area main house air seal accessible bypasses install insulating covers over lights and fans install proper vents 2 poly iso board to trusses and create approx 100 sqft area above the access hatch for storage box in water & heating pipes in attic install class 1 cellulose to achieve r-60 where space permits
Valuation:
$20,021
Permit #:
BLD250090
Status:
complete
Fee:
$300
Permit Type:
N/A
Building Type:
N/A
Residental building permit
20 Woodridge Rd, Maynard, MA, 1754
2021-11-11
Insulate floor area over crawlspace and perimeter. floor 2 polyiso board against subfloor and perimeter of crawlspace 2 polyiso to the bottom of floor joists and dense pack class 1 cellulose between polyiso for a combined total r=50+
Valuation:
$3,286
Permit #:
R-21-0538
Status:
issued
Fee:
$60
Permit Type:
Weatherization
Building Type:
N/A
Building Permit
205 Hardy Pond Rd, Waltham, MA, 2451
2025-03-13
Replace small section of plywood in bathroom & partial door casing due to rot - replace old insulation with r-15
Valuation:
N/A
Permit #:
P202541356
Status:
issued
Fee:
$18
Permit Type:
N/A
Building Type:
N/A
Residential building
18 Spooner Rd, Chestnut Hill, MA, 2467
2021-05-04
Remove existing insulation and install closed cell foam onto exposed roof sheeting on cap area only accessible through ceiling access. compliant with 780cmr and brookline zoning by laws
Valuation:
$19,631
Permit #:
BP-2021-000626
Status:
issued
Fee:
$400
Permit Type:
N/A
Building Type:
N/A
Building Permit
75 Virginia Rd, Waltham, MA, 2453
2025-03-06
Air sealing & insulation
Valuation:
N/A
Permit #:
P202541325
Status:
issued
Fee:
$69
Permit Type:
N/A
Building Type:
N/A
Residental building permit
31 Harrison St, Maynard, MA, 1754
2019-10-07
Dense pack class 1 cellulose into enclose plastered slope areas r-18. install 2 layers of 2 polyiso board between roof rafters against roof sheeting. install 2 thermax over 4 polyiso board and seal into place using one part expanding foam r-39. install 3 polyiso board into attic gable wall cavities and 2 thermax over the 3 polyiso board and seal into place using one part expanding foa... see more
Valuation:
$11,024
Permit #:
R-19-0347
Status:
issued
Fee:
$133
Permit Type:
Weatherization
Building Type:
N/A
Building Permit
7 Walnut St, Waltham, MA, 2453
2024-10-03
4 replacement windows
Valuation:
N/A
Permit #:
P202540528
Status:
issued
Fee:
$45
Permit Type:
N/A
Building Type:
N/A
Building Permit
79 Cedarwood Ave, Waltham, MA, 2453
2024-09-18
Replace existing front door - install new like size door
Valuation:
N/A
Permit #:
P202540443
Status:
issued
Fee:
$61
Permit Type:
N/A
Building Type:
N/A
Building residential
106 W Acton Rd, Stow, MA, 1775
2022-05-23
Replace existing bulkhead with gordon bulkhead
Valuation:
$5,771
Permit #:
22-104RB
Status:
complete
Fee:
$70
Permit Type:
N/A
Building Type:
N/A
Building Permit
36 Barbara Rd, Waltham, MA, 2453
2023-01-03
Insulate basement perimeter insulate foundation walls of crawl space
Valuation:
N/A
Permit #:
P202341049
Status:
issued
Fee:
$43
Permit Type:
N/A
Building Type:
N/A
Residential
44 Parkway Cres, Milton, MA, 2186
2020-09-28
Replace exterior side door leading to basement with therma-tru s-210 fiberglass door no structural changes
Valuation:
$3,263
Permit #:
R-20-0966
Status:
final
Fee:
$48
Permit Type:
Replace exterior ...
Building Type:
N/A
Residential
63 Old North Rd, Carlisle, MA, 1741
2022-04-28
Air seal and insulation r-60
Valuation:
$16,751
Permit #:
R-22-00090
Status:
issued
Fee:
$204
Permit Type:
N/A
Building Type:
N/A
Building Permit
204 Clocktower Dr, Waltham, MA, 2452
2023-07-07
Insulate exterior walls of water heater closet - air seal bypasses
Valuation:
N/A
Permit #:
P202440023
Status:
issued
Fee:
$22
Permit Type:
N/A
Building Type:
N/A
Residential building: renovation repair
38 Highland Ct, Malden, MA, 2148
2021-09-30
Blow in class 1 cellulose insulation into first floor exterior wall areas
Valuation:
$3,400
Permit #:
RES-034923-2020
Status:
issued
Fee:
$44
Permit Type:
N/A
Building Type:
N/A
Building Permit
706 Trapelo Rd, Waltham, MA, 2452
2021-09-17
New roof and install vinyl siding (w000050117)
Valuation:
N/A
Permit #:
P202240527
Status:
issued
Fee:
$204
Permit Type:
N/A
Building Type:
N/A
Building Permit
132 Clocktower Dr, Unit 402, Waltham, MA, 2452
2024-05-13
Insulate hot water heater closet
Valuation:
N/A
Permit #:
P202441767
Status:
issued
Fee:
$22
Permit Type:
N/A
Building Type:
N/A
Building Permit
87 Clocktower Dr, Unit 306, Waltham, MA, 2452
2023-02-28
Insulate water heater closet with 1x2 polyboard
Valuation:
N/A
Permit #:
P202341323
Status:
issued
Fee:
$20
Permit Type:
N/A
Building Type:
N/A
Building Permit
706 Trapelo Rd, Waltham, MA, 2452
2022-06-08
Construct 4 bedroom home
Valuation:
N/A
Permit #:
P202240845
Status:
final
Fee:
$6,720
Permit Type:
N/A
Building Type:
101 single family
Building Permit
83 Lakeview Ter, Waltham, MA, 2451
2019-01-08
Insulate garage ceiling replace side door and storm door replace kitchen window
Valuation:
N/A
Permit #:
P201941060
Status:
issued
Fee:
$68
Permit Type:
N/A
Building Type:
N/A
Minor repairs
63 Whitney Ln, Boxborough, MA, 1719
2022-10-26
Replace existing bilco bulkhead with same size new
Valuation:
N/A
Permit #:
MR-2022-00044
Status:
issued
Fee:
$62
Permit Type:
N/A
Building Type:
N/A