Insights

Large-scale projects Duct Diagnostics serves both residential and commercial sectors with projects ranging from $400 to $120,000, indicating opportunity across a wide price ladder and potential upsell from homeowners to multi-site facilities.

Strong revenue base With reported annual revenue between $25M and $50M and a lean mid-market team size, there is potential to scale partnerships through value-add services, bundled maintenance, and enterprise-level contracting.

Tech-enabled services Utilizing cloud, e-commerce, and digital tooling (AWS, WordPress, Shopify, Brevo, Vimeo) suggests readiness for remote project management, customer portals, and streamlined quoting for large commercial accounts.

Diverse client footprint Experience across residential, commercial, and institutional settings implies capability to pursue school districts, healthcare facilities, and office campuses as repeat customers with standardized service plays.

Competitive positioning Operating in the duct sealing and cleaning space with notable scale hints at opportunities to differentiate via sustainability outcomes, energy efficiency certifications, and long-term maintenance agreements to win competitive bids.

Similar companies to Duct Diagnostics, LLC

Duct Diagnostics, LLC Tech Stack

Duct Diagnostics, LLC uses 8 technology products and services including Amazon Web Services, WordPress, Cloudflare DNS, and more. Explore Duct Diagnostics, LLC's tech stack below.

Duct Diagnostics, LLC's Email Address Formats

Duct Diagnostics, LLC uses at least 1 email format:
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 September 2026, Duct Diagnostics, LLC's annual revenue is estimated to be $25M - $50M.

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

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

How many employees does Duct Diagnostics, LLC have currently?

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As of September 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. and 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 Amazon Web Services, WordPress, Cloudflare DNS, Shopify, Microsoft 365, Twemoji, Brevo and Vimeo.

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

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