Insights

Commercial scale High revenue range and diverse project footprint from residential to large commercial facilities (schools, offices) indicate opportunities to upsell maintenance contracts, recurring duct cleaning, and broader Aeroseal services for multi-site clients.

Midmarket focus Company size (11-50 employees) positions them in the midmarket segment where service contracts, bundled offerings, and response time guarantees can be critical for facility managers seeking reliable, scalable duct solutions.

Residential to institutional Experience across homes and large institutional projects suggests potential for expanding into property management partnerships, school district facilities, and commercial real estate portfolios.

Digital footprint Uses common web technologies and analytics tools; opportunity to leverage SEO, PPC, and targeted content marketing to attract facility managers, general contractors, and building engineers in the Connecticut region and beyond.

Growth potential Strong revenue range with established service capabilities implies potential for strategic partnerships, channel sales, and referral programs with HVAC contractors, building engineers, and energy efficiency programs.

Similar companies to Duct Diagnostics, LLC

Duct Diagnostics, LLC Tech Stack

Duct Diagnostics, LLC uses 8 technology products and services including gstatic.com, Cloudflare DNS, Cufon, and more. Explore Duct Diagnostics, LLC's tech stack below.

  • gstatic.com
    Content Delivery Network
  • Cloudflare DNS
    Domain Name Services
  • Cufon
    Font Scripts
  • Font Awesome
    Font Scripts
  • Twemoji
    Font Scripts
  • jQuery Migrate
    Javascript Libraries
  • Google Analytics
    Web Analytics
  • Google Search Console
    Web Analytics

Duct Diagnostics, LLC's Email Address Formats

Duct Diagnostics, LLC uses at least 1 format(s):
Duct Diagnostics, LLC Email FormatsExamplePercentage
First@ductdiagnostics.comJohn@ductdiagnostics.com
100%

Frequently Asked Questions

What is Duct Diagnostics, LLC's official website and social media links?

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Duct Diagnostics, LLC's official website is ductdiagnostics.com and has social profiles on LinkedIn.

How much revenue does Duct Diagnostics, LLC generate?

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As of July 2026, Duct Diagnostics, LLC's annual revenue is estimated to be $25M - $50M.

What is Duct Diagnostics, LLC's SIC code NAICS code?

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Duct Diagnostics, LLC's SIC code is 7699 - Repair Shops and Related Services, Not Elsewhere Classified NAICS code is 81 - Other Services (except Public Administration).

How many employees does Duct Diagnostics, LLC have currently?

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As of July 2026, Duct Diagnostics, LLC has approximately 11 employees across 1 continents, including North America. Key team members include Vp Of Finance & Admin: J. F.President Of Operations: T. F.Business Owner: R. F.. Explore Duct Diagnostics, LLC's employee directory with LeadIQ.

What industry does Duct Diagnostics, LLC belong to?

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Duct Diagnostics, LLC operates in the Consumer Services industry.

What technology does Duct Diagnostics, LLC use?

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Duct Diagnostics, LLC's tech stack includes gstatic.comCloudflare DNSCufonFont AwesomeTwemojijQuery MigrateGoogle AnalyticsGoogle Search Console.

What is Duct Diagnostics, LLC's email format?

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Duct Diagnostics, LLC's email format typically follows the pattern of First@ductdiagnostics.com. Find more Duct Diagnostics, LLC email formats with LeadIQ.

When was Duct Diagnostics, LLC founded?

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Duct Diagnostics, LLC was founded in 1998.
Duct Diagnostics, LLC logo

Duct Diagnostics, LLC

Consumer ServicesConnecticut, United States11-50 Employees

Duct Diagnostics, LLC is a Milford, Connecticut-based provider of duct-related services, including sealing using Aeroseal technology and duct cleaning, for both residential and commercial settings. Founded in 1998, the company operates in the consumer services sector, concentrating on this niche within building maintenance.

Its projects run from small residential jobs to large institutional assignments, such as schools. The company serves homeowners and commercial clients seeking duct sealing and cleaning solutions. A concrete illustration of its scale is the price range of its work, from a $400 home job to a $120,000 school project.

Section iconCompany Overview

SIC Code
7699 - Repair Shops and Related Services, Not Elsewhere Classified
NAICS Code
81 - Other Services (except Public Administration)
Founded
1998
Employees
11-50

Section iconFunding & Financials

  • $25M - $50M

    Duct Diagnostics, LLC's revenue is estimated to be in the range of $25M - $50M

Section iconFunding & Financials

  • $25M - $50M

    Duct Diagnostics, LLC's revenue is estimated to be in the range of $25M - $50M

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