Insights

Niche Commercial Plumbing Target mid-sized commercial, residential, and industrial clients in Chicago and surrounding areas with bundled plumbing, heating, and process piping services, highlighting capabilities in design-build to win larger project bids.

Legacy & Stability Leverage nearly a century of market presence and union-backed craftsmanship to build trust with clients seeking reliable, skilled labor for complex installations and long-term maintenance contracts.

Growth Potential Position as a scalable partner for multi-site facilities and industrial campuses with repeat needs, offering lifecycle services, preventive maintenance programs, and retrofit upgrades to generate recurring revenue.

Digital Readiness Enhance competitive messaging around modern project management, BIM/design-build collaboration, and quick response times, while addressing outdated tech stack perceptions to attract tech-savvy clients.

Financial Opportunity Highlight the firm’s solid revenue range and family-led heritage to pursue higher-margin turnkey projects, emergency response contracts, and maintenance renewals with clear ROI for building owners and facility managers.

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Fettes, Love & Sieben Tech Stack

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

  • DreamWeaver
    Editors
  • Google Maps
    Maps
  • Adobe Flash
    Programming Languages
  • Lua
    Programming Languages
  • HSTS
    Security
  • X-XSS-Protection
    Security
  • X-Content-Type-Options
    Web & Portal Technology
  • Nginx
    Web Servers

Fettes, Love & Sieben's Email Address Formats

Fettes, Love & Sieben uses at least 1 format(s):
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 July 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 July 2026, Fettes, Love & Sieben has approximately 21 employees across 1 continents, including North America. Key team members include President: S. H.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 DreamWeaverGoogle MapsAdobe FlashLuaHSTSX-XSS-ProtectionX-Content-Type-OptionsNginx.

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

Section iconFunding & Financials

  • $10M - $25M

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

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