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Location and Projects

Headquarters Address
Trabuco Canyon, CA, 92679
Local address
9 Pequot Court, Mashpee, MA, 02649
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William E Mahoney Construction

Serving Mashpee, MA and the surrounding Cape Cod region, William E Mahoney brings 27 years of experience to residential construction and home improvement projects. The company focuses on home building, remodeling, and renovations, with project examples that include single-family home construction, kitchen remodels, and additions. William E Mahoney works directly with homeowners to navigate building requirements and deliver custom solutions tailored to the unique characteristics of Cape Cod properties. With decades in the trade, the contractor manages projects ranging from foundational structural work to finishing details, often addressing site-specific needs such as coastal building codes and seasonal weather considerations. William E Mahoney’s portfolio reflects a longstanding presence in the local construction industry, contributing to the development and improvement of homes throughout Mashpee and nearby communities.

William E Mahoney Contact Information

Phone: (508) 292-9842 Edit
Headquarters Address: Trabuco Canyon, CA, 92679
Local Address: 9 Pequot Court, Mashpee, MA 02649 Edit

William E Mahoney Mashpee

Quality

100
87th percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
William E Mahoney has a BuildZoom score of 100, which places them above 87% of 139,240 contractors in Massachusetts.

Activity

3 projects
 2025
4 projects
 2024
2 projects
 2023
Our building permit records indicate that William E Mahoney has worked on at least 9.0 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

1 project
 $5k-$20k
1 project
 $20k-$50k
1 project
 $50k-$100k
3 projects
 $100k-$250k
1 project
 $250k-$500k
1 project
 $500k-$1mil
1 project
 $1mil+
Value Not Public: 0 projects
The typical size of their permits is approximately $123,000. 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.

Building Permits by William E Mahoney

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.

Residential
56 Belvidere Rd, Falmouth, MA, 2540
2025-08-26
Replace windows and exterior door where noted on plan. replace roof line trim window trim corner boards and siding. make second floor bathroom slightly larger installed new bathtub tile and replace toilet in vanity. refinish wood floors on second floor and repaint walls ceiling and wood trim on the second floor
Valuation:
$113,580
Permit #:
R-25-2214
Status:
issued
Fee:
$909
Permit Type:
Repair alteration
Building Type:
N/A
Residential
88 Jewelers Ave, East Falmouth, MA, 2536
2024-11-26
Demolish existing structures on the property. construct new 5 bedroom 5 bathroom house according to the attached construction plans and site plan
Valuation:
$1,320,000
Permit #:
R-24-3158
Status:
issued
Fee:
$10,560
Permit Type:
Solarpanels
Building Type:
N/A
Residential
11 Teneycke Hill Rd, Falmouth, MA, 02540
2024-06-25
The homeowner would like to finish part of their basement. there would be a finished storage area mechanical room living area and addition additional bathroom in the basement. the plan also includes replacing the exterior entry door and windows
Valuation:
$75,000
Permit #:
R-24-1672
Status:
issued
Fee:
$600
Permit Type:
Alteration
Building Type:
N/A
Residential
43 Shady Ln, East Falmouth, MA, 2536
2022-08-10
We will construct new master suite addition (23’ 6” x 24’). the new addition will contain a full bathroom walk-in closet office and laundry room. there will be work done i. the front entrance to the house (8 x 12) and a dining room bump out that is 9 x 14
Valuation:
$185,000
Permit #:
R-22-2113
Status:
complete
Fee:
$1,480
Permit Type:
Addition
Building Type:
N/A
Residential
349 Sam Turner Rd, East Falmouth, MA, 2536
2022-07-05
Remove exisiting partition that separates kitchen and dining room and install steel beam. install 5 windows and one door. addition existing half bathroom in 1st floor addition full bathroom on 2nd floor. remove existing kitchen cabinets and replace with new ones
Valuation:
$75,000
Permit #:
R-22-1749
Status:
issued
Fee:
$600
Permit Type:
Alteration
Building Type:
N/A
Residential
15 Ardmore St, Teaticket, MA, 2536
2024-05-01
Removing wrap around porch and expanding living space within the same footprint of the existing house
Valuation:
$215,500
Permit #:
R-24-1166
Status:
issued
Fee:
$1,724
Permit Type:
Alteration addition
Building Type:
N/A
Vp - electrical permit - historical permit
280 Old Falmouth Rd, Marstons Mills, MA, 2648
2020-11-30
Installation of 5.5mwdc ground mounted solar array. installation including 12, 744 solar panels 2 central inverters 2 step-up transformers and 3 battery containers. racking done by others
Valuation:
$1,940,000
Permit #:
192837
Status:
complete
Fee:
N/A
Permit Type:
Electrical - solar
Building Type:
Business
Residential
905 W Falmouth Hwy, Falmouth, MA, 2540
2024-10-07
Excavate foundation hall install concrete footing and foundation. backfill and install concrete slab to the parking platform
Valuation:
$24,892
Permit #:
R-24-2694
Status:
issued
Fee:
$199
Permit Type:
Parking platform
Building Type:
N/A
Residential
11 Teneycke Hill Rd, Falmouth, MA, 02540
2023-09-07
Construct new shed dormer and covered porch at front of house. all materials are to match existing
Valuation:
$123,000
Permit #:
R-23-2383
Status:
complete
Fee:
$984
Permit Type:
Alteration addition
Building Type:
N/A
Electrical permit
200 Longwood Ave, Boston, MA, 2115
2021-03-08
Install new panel 4 outlets and a 60a disconnect for a computer room air conditioning unit
Valuation:
$50,000
Permit #:
E1170749
Status:
filed
Fee:
$24
Permit Type:
N/A
Building Type:
Other
Alteration
82 Lake View Blvd, Plymouth, MA, 2360
2018-01-23
Construct second floor dormer 14'9 x 11'11"; extend existing chimney and flue up 24 above existing ridge. addition two (2) bathrooms to second floor. stamped plan required onsite for all inspections. (app93831) (z20171619) - single family house
Valuation:
$47,000
Permit #:
A20180021
Status:
issued
Fee:
$108
Permit Type:
Residential addit...
Building Type:
N/A
B express alteration on line
36 Downer Rd, North Falmouth, MA, 2556
2020-05-30
Express alter online: siding: squ:6 matrl:white cedar shingles exp:5 mod:clear bwindows:1 no header change:y
Valuation:
N/A
Permit #:
2020-500648
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
B express alteration on line
47 Priscilla St, Teaticket, MA, 2536
2020-05-27
Express alter online: roof strip: no.squ:22 %:100 manu:certainteed mod:landmark rate/yrs:30
Valuation:
N/A
Permit #:
2020-500639
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
101 single family
Residential
16 Evangeline Rd, Falmouth, MA, 2540
2025-09-23
Replace 10 windows
Valuation:
$14,000
Permit #:
REP-25-2499
Status:
complete
Fee:
$112
Permit Type:
N/A
Building Type:
N/A
Electrical
Burts Pit Rd, Northampton, MA
2019-05-14
4.3 mw air conditioning ground mount photovoltaic solar generating facility
Valuation:
N/A
Permit #:
EP-2019-0776
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical
280 Driftway, Scituate, MA, 2066
2018-03-30
Repair of mv cable and conduit work from goab to national grid pole work has been completed and test report of cable is attached
Valuation:
$10,000
Permit #:
E-18-182
Status:
issued
Fee:
$100
Permit Type:
Service or Temp S...
Building Type:
Commercial
Vp - building permit - historical permit
58 Corporation St, Hyannis, MA, 2601
2017-05-26
Tenant fit out for quarry industry marble granite inc. to install a machine to cut granite and marble only electrical and plumbing (separate permits)expired. no inspections
Valuation:
N/A
Permit #:
151543
Status:
suspended
Fee:
N/A
Permit Type:
Building - additi...
Building Type:
Business
Electrical
Burts Pit Rd, Northampton, MA
2019-09-17
2.026 mw battery storage locate din the array
Valuation:
N/A
Permit #:
EP-2020-0225
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential
905 W Falmouth Hwy, Falmouth, MA, 2540
2023-05-16
Building a new 4 bedroom 2.5 bathroom and an unfinished half bathroom in the basement. the house will will have a front porch and rear upper roof terrace deck. the home will also be built as per plans submitted
Valuation:
$647,000
Permit #:
R-23-1355
Status:
complete
Fee:
$5,201
Permit Type:
N/A
Building Type:
N/A
Electrical
417 Chapel St, Lee, MA, 1238
2017-08-08
Photovoltaic array
Valuation:
$828,000
Permit #:
E-17-0135
Status:
issued
Fee:
$1,606
Permit Type:
N/A
Building Type:
N/A

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