Updated: Dec 17, 2025
Location and Projects
Address
20 Boston Rd, Westford, MA, 01886
Use our bidding system to
request a quote
John C. Koval Plumber
Their BuildZoom score of 0 does not rank in the top 50% of Massachusetts contractors.
If you are thinking of hiring John C. Koval, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
John C. Koval Services
Start a project today:
John C. Koval Contact Information
Phone Number: (978) 423-8629
Edit
Address: 20 Boston Rd, Westford, MA 01886
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
John C. Koval Westford
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are John C. Koval, click “This is My Business” to update your information.
Activity
|
2 projects
|
2025 |
|
3 projects
|
2024 |
|
9 projects
|
2023 |
Our building permit records indicate that John C. Koval has worked on at least
14.0 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
|
9 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that John C. Koval mostly works on
plumbing project
projects.
Pricing
|
7 projects
|
< $5k |
The typical size of their permits is approximately $1,500. 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.
2 fireplace install 2 gas log burners basement and first fl
Valuation:
$1,500
Permit #:
PG202500749
Status:
issued
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
Install gas fireplace insert first floor product approval # g1-0218-345
Valuation:
N/A
Permit #:
GP-24-27
Status:
complete
Fee:
N/A
Permit Type:
New
Building Type:
N/A
Replace gas fire place insert with travis 430 mass approval number g1-0218-345
Valuation:
N/A
Permit #:
GP-23-283
Status:
issued
Fee:
N/A
Permit Type:
Replacement
Building Type:
N/A
Strip and replace siding front/street side of house
Valuation:
$2,700
Permit #:
REP-24-2420
Status:
issued
Fee:
$50
Permit Type:
Strippingoldshingles
Building Type:
N/A
Replace gas fireplace insert first floor
Valuation:
$1,500
Permit #:
G-24-0135
Status:
issued
Fee:
$75
Permit Type:
N/A
Building Type:
Residential
Install gas fireplace insert first floor
Valuation:
$1,500
Permit #:
23-90G
Status:
expired
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
Gasfireplace insert
Valuation:
N/A
Permit #:
GP-23-251
Status:
complete
Fee:
N/A
Permit Type:
Renovation
Building Type:
N/A
Gas fireplace insert
Valuation:
N/A
Permit #:
GP-23-215
Status:
complete
Fee:
N/A
Permit Type:
Renovation
Building Type:
N/A
Cookstove
Valuation:
$500
Permit #:
23-45G
Status:
expired
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
GP-23-468
Status:
issued
Fee:
$50
Permit Type:
Replacement appli...
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
GP-23-390
Status:
complete
Fee:
$50
Permit Type:
New appliance
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
GP-18-8
Status:
issued
Fee:
$25
Permit Type:
New appliance
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
GP-18-55
Status:
issued
Fee:
$25
Permit Type:
New appliance
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
GP-18-11
Status:
issued
Fee:
$25
Permit Type:
Replacement appli...
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PP-22-237
Status:
complete
Fee:
$40
Permit Type:
Renovations
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
P-16-00028
Status:
Permit Issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Dishwasher
Valuation:
N/A
Permit #:
201504608
Status:
issued
Fee:
N/A
Permit Type:
(plmg) - plumbing...
Building Type:
102 condominium
Cook stove
Valuation:
N/A
Permit #:
201411459
Status:
issued
Fee:
N/A
Permit Type:
(plmg) - plumbing...
Building Type:
104 two-family
Cook stove
Valuation:
N/A
Permit #:
201411217
Status:
issued
Fee:
N/A
Permit Type:
(plmg) - plumbing...
Building Type:
102 condominium
No Description Available
Valuation:
N/A
Permit #:
GP-18-11
Status:
final
Fee:
$25
Permit Type:
Replacement appli...
Building Type:
N/A
Similar Contractors See more
124
BZ Score
$5K
Avg Project
-
Projects
123
BZ Score
$3.3K
Avg Project
-
Projects
123
BZ Score
$2K
Avg Project
-
Projects
John C. Koval Reviews
BuildZoom hasn't received any reviews for John C. Koval. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Let us find you a plumber in your area today
We'll search our vast network of Plumbers and connect
you with one that meets your needs today.
John C. Koval License info
License Not Verified
| License # | 22352 |
| Status | Active |
| State | Massachusetts |
| Type | Apprentice Plumber |
- When BuildZoom last verified this license, it had an expiration date of May, 2016. Check the current license status of John C. Koval with the Massachusetts Department of Consumer Affairs and Business Regulation
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are John C. Koval, click “This is My Business” to update your information.
61
Permits
- Building permit records show that John C. Koval has worked on 61 permitted projects.
John C. Koval Employees
JK
John C. Koval