Insights

Target Market Fit Long-standing union plumbing and heating contractor serving commercial, residential, industrial piping and design-build projects in Chicago suggests strong opportunities for ongoing maintenance contracts, facility upgrades, and kickstart projects with general contractors and property managers in mid-market portfolios.

Revenue Scale Current revenue range indicates a mid-sized firm with potential for expansion through service diversification, HVAC retrofits, and larger remodels; approach focusing on stable PM contracts, bundled service plans, and value-add engineering proposals could capture additional share.

Technology Leverage Existing tech stack points to familiarity with design and documentation tools; CDP-like outreach could align with their design-build capabilities by offering BIM coordination services, digital project tracking, and streamlined procurement integrations.

Competitive Position Compared to peers, the firm is smaller but established with a nearly century-long presence; position as a specialized, trusted partner for complex piping and process systems in regulated environments to win long-term maintenance and retrofit projects.

Growth Triggers Notable expansion opportunities include industrial process piping, remodel and design-build projects, and potential geographic or sector expansion within Chicago; target with case studies, references, and bundled service offerings to elevate project scope and win higher-value contracts.

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Fettes, Love & Sieben Tech Stack

Fettes, Love & Sieben uses 8 technology products and services including DreamWeaver, Microsoft 365, Google Maps, and more. Explore Fettes, Love & Sieben's tech stack below.

  • DreamWeaver
    Editors
  • Google Maps
    Maps
  • Lua
    Programming Languages
  • HSTS
    Security
  • X-XSS-Protection
    Security
  • Google FeedBurner
    Web And Application Servers
  • Apache
    Web Servers

Fettes, Love & Sieben's Email Address Formats

Fettes, Love & Sieben uses at least 3 email formats:
Fettes, Love & Sieben Email FormatsExamplePercentage
FLast@flsplumbing.comJDoe@flsplumbing.com
77%
First@flsplumbing.comJohn@flsplumbing.com
15%
FirstLast@flsplumbing.comJohnDoe@flsplumbing.com
8%

Frequently Asked Questions

What is Fettes, Love & Sieben's phone number?

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You can contact Fettes, Love & Sieben's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Fettes, Love & Sieben's official website and social media links?

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Fettes, Love & Sieben's official website is flsplumbing.com and has social profiles on LinkedIn.

How much revenue does Fettes, Love & Sieben generate?

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As of September 2026, Fettes, Love & Sieben's annual revenue is estimated to be $10M - $25M.

What is Fettes, Love & Sieben's NAICS code?

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Fettes, Love & Sieben's NAICS code is 23 - Construction.

How many employees does Fettes, Love & Sieben have currently?

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As of September 2026, Fettes, Love & Sieben has approximately 22 employees across 1 continents, including North America. Key team members include President: S. H. and Fettes Love And Sieben: C. M. Explore Fettes, Love & Sieben's employee directory with LeadIQ.

What industry does Fettes, Love & Sieben belong to?

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Fettes, Love & Sieben operates in the Construction industry.

What technology does Fettes, Love & Sieben use?

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Fettes, Love & Sieben's tech stack includes DreamWeaver, Microsoft 365, Google Maps, Lua, HSTS, X-XSS-Protection, Google FeedBurner and Apache.

What is Fettes, Love & Sieben's email format?

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Fettes, Love & Sieben's email format typically follows the pattern of FLast@flsplumbing.com. Find more Fettes, Love & Sieben email formats with LeadIQ.

When was Fettes, Love & Sieben founded?

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Fettes, Love & Sieben was founded in 1924.
Fettes, Love & Sieben logo

Fettes, Love & Sieben

ConstructionIllinois, United States11-50 Employees

Fettes, Love & Sieben is a Chicago-based plumbing and heating contractor serving a range of sectors including commercial, residential, and industrial piping, as well as process piping, remodeling, and design-build projects. Founded in 1924 by James Fettes, William Love, and Philip Sieben, the firm traces its roots to experienced foremen from a major plumbing company and an accountant from a notable brewing family, situating it within a long-standing regional construction trades tradition. The company operates as a union contractor, offering a scope of work that encompasses new installations, remodeling efforts, and integrated design-build solutions, aimed at delivering comprehensive plumbing and heating systems. Its client base comprises customers in need of institutional, commercial, and residential piping services within the city of Chicago and surrounding areas. Based in Chicago, Illinois, the firm positions itself within the construction industry as a specialized provider of plumbing and heating services with capabilities across multiple project types and scales.

Section iconCompany Overview

Phone number
NAICS Code
23 - Construction
Founded
1924
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    Fettes, Love & Sieben's revenue is estimated to be in the range of $10M - $25M

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