Updated: Jul 12, 2026
Location and Projects
Address
33 PROGRESS AVE, Seymour, CT, 06478
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Connecticut Basement Systems Radon Construction
Based in Seymour, Connecticut Basement Systems Radon Inc has served homeowners and businesses throughout Connecticut as well as Westchester and Putnam Counties in New York for over 26 years. The company specializes in basement waterproofing, crawl space repair and encapsulation, basement finishing, foundation repair, and sump pump installation. Their service area includes Stamford, Bridgeport, Fairfield, and nearby communities. Connecticut Basement Systems Radon Inc addresses issues ranging from wet or flooded basements and tilting or bowing foundation walls to transforming unfinished basements into usable living spaces. Using patented, warrantied products and advanced mold removal techniques, the team delivers permanent solutions designed to protect property and improve indoor environments. Financing options are available for most projects.
Connecticut Basement Systems Radon Inc Services
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Connecticut Basement Systems Radon Inc Contact Information
Address: 33 PROGRESS AVE, Seymour, CT 06478
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Connecticut Basement Systems Radon Inc Seymour
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Connecticut Basement Systems Radon Inc has a BuildZoom score of 108, which places them above 95% of 12,093 contractors in Connecticut.
Activity
|
49 projects
|
2025 |
|
55 projects
|
2024 |
|
10 projects
|
2023 |
Our building permit records indicate that Connecticut Basement Systems Radon Inc has worked on at least
114.0 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
|
15 projects
|
Home Additions |
|
6 projects
|
Multi-room remodels |
|
5 projects
|
Kitchen remodels |
Analyzing permits over the last 4 years shows that Connecticut Basement Systems Radon Inc mostly works on
home addition
and multi-room remodel
projects.
Pricing
|
47 projects
|
< $5k |
|
50 projects
|
$5k-$20k |
|
23 projects
|
$20k-$50k |
|
13 projects
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
The typical size of their permits is approximately $8,000. 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 Connecticut Basement Systems Radon Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Install 3 ton 20 seer bosch heat pump 3 ton bosch air handler ductwork install 3.5 ton 20 seer bosch heat pump 4 ton bosch air handler ductwork (see plan review) prsump20250086 $14 946.35 alteration sump pump r-residential 02/27/2025 5 full perimeter sub-floor trench drain basement waterproofing system to sump pump with battery back up
Valuation:
$22,000
Permit #:
PRMH202500858
Status:
issued
Fee:
N/A
Permit Type:
New
Building Type:
One family dwelli...
Air seal and insulate attic assembly seal all accessible penetrations top plates with expanding polyurethane foam. air seal floor with zypfoam. insulate attic floor with trusoft cellulose. prepare chimney in attic for air sealing and insulation. seal chimney chase with metal flashing fire caulk and wrap with rock wool boards. install silverglo eps foam board with radiant barrier along... see more
Valuation:
$16,785
Permit #:
PRAD202407214
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Remove existing patio pavers dig to make footing and foundation pour footings and foundation remove existing basement window and cut existing foundation access hole pour crawlspace slab. install beam in new opening to mudroom addition frame addition floor frame addition walls frame addition ceiling frame addition roof frame for (1) triple window. install r-60 insulation in roof rafter... see more
Valuation:
$65,000
Permit #:
PRAD202502897
Status:
applied
Fee:
N/A
Permit Type:
Addition
Building Type:
R-residential
Remove and replace roofing. 17 squares architectural shingle ice & water and 3/4 plywood if needed prsump20250030 $9, 672.90 alteration sump pump r-residential 01/21/2025 3 basement waterproofing system to sump pump
Valuation:
$8,000
Permit #:
PRRF202500298
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
Must verify
Kitchen renovation changing cabinets and adding new sinks for st thomas syro malabar church aka 30 echo lane. prsump20250258 $5 183.00 alteration sump pump r-residential 05/16/2025 0 basement waterproofing system to sump pump. tying into properties existing exterior discharge line
Valuation:
$20,000
Permit #:
PRAD202502312
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
Must verify
Rewire 2-car detached garage using existing feed being rebuilt due to tree. prsump20250076 $6 880.85 alteration sump pump r-residential 02/21/2025 3 basement waterproofing system to sump pump with battery back-up
Valuation:
$1,900
Permit #:
PREL202500755
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Remove and dispose of existing insulation in attic. (288 sqft. per layer of batts) remove batt insulation. (68 sqft. of loose insulation) remove loose insulation. air seal and insulate roof and knee wall assembly on cape cod style home. (468 sqft. of roof deck gable ends) superkneewall with silverglo. (96 sqft.of roof deck) dense pack roof slopes with trusoft cellulose. (600 sqft. of ... see more
Valuation:
$7,711
Permit #:
PRAD202503207
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Remove existing shingles down to the original deck area approximately (15) squares of plywood are damaged replace 6 of ice water shield will be installed along with seam tape and synthetic paper roll roofing and new asphalt shingles. prsump20250253 $3 541.00 new sump pump r-residential 05/14/2025 3 prsump20250253 $3 541.00 new sump pump r-residential 05/14/2025 3 small sump pump insta... see more
Valuation:
$7,500
Permit #:
PRRF202502437
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Kitchen mudroom and bathroom remodel on first floor with a 9 sq ft bump out addition prsump20250252 $15 508.00 alteration sump pump r-residential 05/14/2025 8 basement waterproofing system to sump pump with battery backup
Valuation:
$65,000
Permit #:
PRAD202502424
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Remove and replace 14 windows with 27 u-value replacements all windows meet egress where required. remove and replace entry door with provia replacement. no structural changes. prsump20240631 $19, 251.00 alteration sump pump r-residential 10/23/2024 5 basement waterproofing system to sump pump with battery back up basement waterproofing system to sump pump with battery back up
Valuation:
$29,502
Permit #:
PRAD202406313
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-3-residential o...
Replacing (30) series 4000 double-hung windows; (2) series 4000 picture windows; (1) series 4000 3-lite slider window. u-value 28 or lower. no structural changes. prsump20240611 $7, 800.00 alteration sump pump r-residential 10/14/2024 6 sump pump and drainage for basement
Valuation:
$30,186
Permit #:
PRAD202406114
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-3-residential o...
Water heater replacement 40 gallon gas tall 6 year prsump20250353 $14 612.90 alteration sump pump r-residential 07/02/2025 9 basement waterproofing system to sump pump with battery backup. discharging to daylight with setback measurements to neighboring property lines
Valuation:
$1,500
Permit #:
PRPL202503507
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
Must verify
Replacement of existing furnace with an amana 96% afue 80k btu gas furnace - model am9c960803bn prsump20240713 $20, 479.00 alteration sump pump r-residential 12/03/2024 2 basement waterproofing system to triplesafe sump pump with battery back up and super sump plus sump pump without battery back up
Valuation:
$8,571
Permit #:
PRMH202407126
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-3-residential o...
Alter bathroom wash area by removing existing fixtures (toilet tub/wash sink and cabinet) with new (toilet shower 48 x 34 and vanity 36 x 21"); modify existing plumbing to new components as necessary. prsump20240689 $21, 078.00 alteration sump pump r-residential 11/20/2024 7 install basement waterproofing system to sump pump with battery backup. install dehumidifier and wellduct windo... see more
Valuation:
$500
Permit #:
PRPL202406896
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
Must verify
Install a check valve to protect the washer and slop sink. mdc prsump20240642 $3, 600.00 alteration sump pump must verify 10/29/2024 3 cut cap and remove existing backwater valve and install new sump pump- see sketch washer drains pipe is not code and drains to an open toilet flange that is also not up to code. no protection needed on the washer drain line prsump20240642 $11, 973.00 a... see more
Valuation:
$695
Permit #:
PRPL202406422
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
Must verify
We are replacing the 4 ton air conditioning with an american standard 5a7a4048 and a multi speed air handler prsump20250364 $6 221.55 alteration sump pump must verify 07/09/2025 1 install basement waterproofing system to sump pump
Valuation:
$15,208
Permit #:
PRMH202503664
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
Must verify
Install cleanspace crawl space encapsulation system. install cleanspace drainage matting under cleanspace liner. install terrablock flexible insulation. install sillverglo. install rim joist insulation. install passive vent
Valuation:
$2,500
Permit #:
PRAD202500718
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
R-residential
Reutilizing existing electrical panels conduits and feeders for starbucks. furnishing and installing new circuit breakers in the existing panels. we are carrying 10k aic gfci rated bolt on breakers where shown on the drawings. installing owner supplied light fixtures. light fixtures will be wired in mc cable from the existing panel and supported from the building structure. installing... see more
Valuation:
$56,000
Permit #:
PREL202405717
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
Must verify
Convert unfinsihed basement to finsihed therapy room rec room 2 craft rooms full bathroom kitchenette with no cooktop no sleeping rooms. all work interior. *****revised 8/5/24 to addition cooktop/oven
Valuation:
$135,721
Permit #:
24-220B
Status:
expired
Fee:
$1,397
Permit Type:
Bld- alteration/r...
Building Type:
N/A
Convert 745 sq ft of unfinished interior basement space into family room office space closet/storage space bedroom and full bathroom
Valuation:
$73,495
Permit #:
25-87B
Status:
expired
Fee:
$967
Permit Type:
Interior renovati...
Building Type:
N/A
Similar Contractors See more
138
BZ Score
-
Avg Project
-
Projects
147
BZ Score
$45K
Avg Project
-
Projects
140
BZ Score
-
Avg Project
-
Projects
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Connecticut Basement Systems Radon Inc License info
Verified License
| License # | HIC.0526823 |
| Status | Active |
| State | Connecticut |
| Type | Home Improvement Contractor |
| Date Issued | 04-01-2026 |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Connecticut Basement Systems Radon Inc at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HIC.0553462 |
| Status | Inactive |
| State | Connecticut |
| Type | Home Improvement Contractor |
- According to the Connecticut Department of Consumer Protection, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Connecticut Basement Systems Radon Inc at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
261
Permits
- Building permit records show that Connecticut Basement Systems Radon Inc has worked on 261 permitted projects.