Insights

Established Legacy With a history dating back to 1924 and founders with extensive industry experience, Fettes, Love & Sieben demonstrates longstanding stability and deep local market knowledge, offering opportunities for partnerships in complex commercial and industrial projects.

Construction Expertise Specializing in commercial, residential, industrial piping, and remodels, the company is well-positioned to engage with clients requiring comprehensive plumbing and heating solutions, especially for large-scale or specialized infrastructure projects.

Mid-Sized Growth Operating with a team of 11-50 employees and generating revenue between 1M and 10M, Fettes, Love & Sieben presents growth opportunities for suppliers and service providers targeting mid-market construction firms with expanding project portfolios.

Technology Stack Utilizing tools like Microsoft 365, Google Maps, and open-source server technologies, the company emphasizes digital efficiency, indicating openness to innovative tech solutions that improve project management, communication, and operational safety.

Market Positioning Competing with companies like Apollo Home and One Hour Heating & Air Conditioning, Fettes, Love & Sieben offers potential sales avenues in maintenance, service agreements, and retrofit projects tailored to both commercial and industrial clients in the Chicago area.

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

X-XSS-Protection

Security

X-Content-Type-Options

Web & Portal Technology

Google FeedBurner

Web And Application Servers

Apache

Web Servers

Fettes, Love & Sieben Email Formats	Example	Percentage
FLast@flsplumbing.com	JDoe@flsplumbing.com	77%
First@flsplumbing.com	John@flsplumbing.com	15%
FirstLast@flsplumbing.com	JohnDoe@flsplumbing.com	8%

Fettes, Love & Sieben Email Formats

Example

Percentage

FLast@flsplumbing.com

JDoe@flsplumbing.com

77%

First@flsplumbing.com

John@flsplumbing.com

15%

FirstLast@flsplumbing.com

JohnDoe@flsplumbing.com

Frequently Asked Questions

Where is Fettes, Love & Sieben's headquarters located?

Fettes, Love & Sieben's main headquarters is located at Chicago, Illinois 60618 United States. The company has employees across 1 continents, including North America.

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

You can contact Fettes, Love & Sieben's main corporate office by phone at

+1-773-935-****

. 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?

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

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

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

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

As of February 2026, Fettes, Love & Sieben has approximately 20 employees across 1 continents, including North America. Key team members include President: S. H.Project Manager: T. G.Fettes Love And Sieben: C. M.. Explore Fettes, Love & Sieben's employee directory with LeadIQ.

What industry does Fettes, Love & Sieben belong to?

Fettes, Love & Sieben operates in the Construction industry.

What technology does Fettes, Love & Sieben use?

Fettes, Love & Sieben's tech stack includes DreamWeaverGoogle MapsAdobe FlashLuaX-XSS-ProtectionX-Content-Type-OptionsGoogle FeedBurnerApache.

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

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?

Fettes, Love & Sieben was founded in 1924.

Fettes, Love & Sieben

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

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

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

Fettes, Love & Sieben has approximately 20 employees.

Q: What technology does Fettes, Love & Sieben use?

Fettes, Love & Sieben's tech stack includes Google Maps, Google FeedBurner, Microsoft 365, Adobe Flash, Apache.

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

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

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.

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