Updated: May 17, 2026
Location and Projects
Address
25 SEVEN SISTER RD, Haverhill, MA, 01830
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James G Dimopoulos HVAC/Mechanical Contractor
James G Dimopoulos, 25 Seven Sister Rd, Haverhill, MA (Owned by: James Dimououlos) holds a Home Improvement Contractor license and 1 other license according to the Massachusetts license board.
Their BuildZoom score of 108 ranks in the top 5% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring James G Dimopoulos, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
James G Dimopoulos Contact Information
Phone Number: (978) 360-0959
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Address: 25 SEVEN SISTER RD, Haverhill, MA 01830
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James G Dimopoulos Haverhill
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
James G Dimopoulos has a BuildZoom score of 108, which places them above 95% of 139,240 contractors in Massachusetts.
Activity
|
242 projects
|
2025 |
|
834 projects
|
2024 |
|
1062 projects
|
2023 |
Our building permit records indicate that James G Dimopoulos has worked on at least
2138.0 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
|
39 projects
|
Home Additions |
|
10 projects
|
Commercial Renovations |
|
7 projects
|
Fences |
|
1897 projects
|
HVAC projects |
|
3 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that James G Dimopoulos mostly works on
hvac project
and home addition
projects.
Pricing
|
1121 projects
|
< $5k |
|
891 projects
|
$5k-$20k |
|
27 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
2 projects
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $4,565. 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.
Mechanical work for a 3 zone ductless mini split unit and mechanical work for a ducted mini split unit with up to 3 supplies unit and 1 return
Valuation:
$21,450
Permit #:
MEC-25-0049
Status:
complete
Fee:
$80
Permit Type:
New
Building Type:
N/A
Door sweep -3 extension dooe weather stripping - 3 propavent 12 attic stair cover thermal barrier - 1 sheathing access -1 attic floor 6 dpc 12 obc vent bathroom fan to roof ot other air sealing damming recessed light enclosure rim joist 6 fiberglass batting kneewall slope 2 thermal barrier polyiso kneewall slope 3 fiberglass batting transition air sealing kneewall gable 2 thermal barr... see more
Valuation:
N/A
Permit #:
BLDG-24-1213
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Insulation weatherization and air sealing/weatherstrip w/q ion or equivalent fixed treiple flange replace clothes dryer exhaust fan transition duct only 1 or 2 thermax or equivalent on door continuous variable speed fan w/contraols vent kit/bath fan recessed light enclosures - 13 thermodome or magnetic pull down stairway box kit or site built less than 3 thick accu vent or durable equ... see more
Valuation:
N/A
Permit #:
BLDG-24-1019
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Insulation weatherization and air sealing/air sealing door sweep -3 extension door weather stripping -3 door 2 thermal barrier polyiso hatch 2 thermal barrier polyiso damming vent bathroom fan to roof attic 9 obc propavent rim joist 6 fiberglass batting
Valuation:
N/A
Permit #:
BLDG-24-1018
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Insulation weatherization and air sealing/weatherstrp w qion or equivalent-3 fixed sweep triple flange replace clothes dryer/exhaust fan transition duct only recessed light enclosure accuvent or durable equivalent vent extension above insulation attic/basement blower door guided sealing with one part foam r-18-20 unrestricted - settled cellulose or equivalent rectangular soffit vent 1... see more
Valuation:
N/A
Permit #:
BLDG-24-1014
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Insulation weatherization and air sealing/weatherstipping -3 fixed sweep triple flange - 3 replace clothes dryer/exhaust fan transition duct only - 1 garage ceiling overhang or cantilever cavity filled cellulose or equivalent vent kit/bath fan weatherstrip & r code attic hatch side slide 1/2 plywood r-49 unrestricted - settled cellulose or equivalent perimeter 2 thermax or equivalent ... see more
Valuation:
N/A
Permit #:
BLDG-24-979
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Insulation weatherization and air sealing/air seasling door sweep - 2 extension door weather stripping -2 room joist 2 thermal barrier polyiso 97 sf walls - vinyl - 4 dpc 1200 sf temporaory access hatch 2 thermal barrier polyiso roof vent 12 - 2 damming 12 attic floor 9 obc 552 sf attic slope 6"dpc - 240 sf
Valuation:
N/A
Permit #:
BLDG-24-961
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Insulation weatherization and air sealing/attic stair cover thermal barrier door sweep extension door weather stripping air sealing recessed light enclosure attic floor 13 obc r-48 rim joisr 6 fiberglass batting r- 21 damming propavent vent bathroom fan to roof
Valuation:
N/A
Permit #:
BLDG-24-886
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Air sealing kneewall floor 10: dpc insulation removal kneewall 3 fiberglass batting kneewall 2 thermal barrier polyiso transition air sealing temporary access hatch 2 thermal barrier polyiso air sealing rimjoist door sweep exterior weather stripping
Valuation:
N/A
Permit #:
BLDG-24-833
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Insulation weatherization and air sealing-air sealing insulation removal rim joist 6 fiberglass batting cut and finish access hatch 2 thermal barrier polyiso kneewall 6 fiberglass batting kneewall 2 thermal barrier polyiso transition air sealing kneewall floor 9 fiberglass batting
Valuation:
$4
Permit #:
BLDG-24-761
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Air sealing 16 hrs extension door weather stripping -3 door sweep -3 cut and finsih access hatch 2 thermal barrier polyiso r-14 open wall 2 common walls thermal barrier polyiso r-14 transitiona air sealing recessedligh enclosure coversinsulation weatherization and air sealing
Valuation:
$2
Permit #:
BLDG-24-725
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Weatherization insulation and air sealing, air sealing 10 hours door sweep -3 weatherstripping -3 attic floor 9 obc r value 33.3 door 2 thermal barrier polyiso r -14 kneewall 2 thermal barrier polyiso r-14 rim joist 2 thermal barrier polyiso r-14 damming
Valuation:
N/A
Permit #:
BLDG-24-698
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace clothes dryer/exhaust fan transition duct only crawlspace overhead insulation 4 high or less r-19 fiberglass or eq perimeter 2 thermax or eq foam board weatherstrip & r -code attic hatch side slide 1/2 ply cut/close attic- kneewall access r-60 unrestricted - settles cellulose or eq roof vent 135 large accu vent or durable eq kneewalls r-12 fiberglass or eq behind fire - rated ... see more
Valuation:
N/A
Permit #:
BLDG-24-637
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2-attic basement blower door guided sealing w two-part foam sill/mudsull seal & insulatio to r-19 (tmax) perimeter 2 themax or equivalent foam board replace clothes dryer/exhaust fan duct only 2 - caz testing weatherstrip w q-ion or equivalent fixed sweep triple flange r-60 unrestricted - settled cellulose or equivalent r-18-20 restricted - slopes floored fill w cellulose or equivalen... see more
Valuation:
N/A
Permit #:
BLDG-24-628
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Weatherization insulation and air sealing fixed sweep triple flange - 3 weatherization w/q-ion or eq -3 replace clothes dryer/exhaust fan transition duct only 1 or 2 thermax or eq on door labor per hour sill mudsill seal & insulate to r-19 (tmax) wood clapboard/shakes/shingles or vinyl (dense pack) cellulose oe eq attic/basement blower door guided sealing w 2 part foam attic/basement ... see more
Valuation:
$40
Permit #:
BLDG-24-479
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Attic has flooring that needs to be removed to air seal enough of the attic to treat it. install tent where pds is place boards down so that there is a path leading to the air handler. dam around platform and install 11 of cell throughout the rest of the attic. install propavents
Valuation:
N/A
Permit #:
BLDG-24-324
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Straightforward split level attic and overhang. attic has 6 fgb existing. a/s vent the bf and kitchen range. customer is going to screw down storage platform bring screws up with you if you need more support for dp. dp the storage platform dam and blow 9 obc for open attic. tdome for pds.overhang scoped for 9 fgb and poly wide open easy.poly and w/s the basement door. w/s the two othe... see more
Valuation:
N/A
Permit #:
BLDG-24-304
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Split level attic work. upper level is renter occupied 100% free. 12 8x16 soffit vents existing- scoped turbine but bring 12 vents as well since turbine will probably be too much. calculation was run with 4x16's.6 fgb existing. a/s vent the bf to gable kitchen range (rectangular 4x10) you will need a reducer/metal hose etc. vent to the front homeowner doesnt care. props scoped 3 for e... see more
Valuation:
N/A
Permit #:
BLDG-24-298
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Straight forward wide open ranch attic vinyl walls and open basement.attic has 3 fgb existing. a/s two 12 vents vent bf to roof double damming hatch blow 12 obc.vinyl walls all first floor. existing insulation super easy to compress into cavitiy it is definitely not what is in the attic. i drill all four sides of home plenty of room for dp. watch out for the wet wall in bathroom wall.... see more
Valuation:
N/A
Permit #:
BLDG-24-242
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Cmc on site during audit. asbestos siding for most of home except for mudroom which are wood shakes. second floor appears to have zero insulation in walls. first floor has none in some sections and some very little low density lbfg in others. the living room and bathroom on first floor have fiberglass- this is the only section i did not scope and the only section with dropped ceiling ... see more
Valuation:
$28
Permit #:
BLDG-24-197
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
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James G Dimopoulos License info
Verified License
| License # | 167375 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
| Date Issued | 03-12-2026 |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for James G Dimopoulos at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CS-104464 |
| 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 James G Dimopoulos at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
5.6K
Permits
- Building permit records show that James G Dimopoulos has worked on 5647 permitted projects.
James G Dimopoulos Employees
JD
James Dimopoulos
Responsible Person
JD
James Dimououlos
Owner