Insights

Experienced Mechanical Established in 1946 and operating as a Chicago-based full service mechanical contractor, Great Lakes Plumbing Heating Fire Protection Company offers deep expertise in complex plumbing, mechanical piping and fire protection design and installation. Sales opportunities lie in targeting large retrofit, upgrade, or rehabilitation projects in existing buildings where their on-site engineering, CAD, and procurement capabilities can differentiate delivery and ensure budget/schedule adherence.

Comprehensive Capabilities With end-to-end services from design to fabrication and installation, the company can act as a single-source partner for multi-discipline mechanical projects. Potential upsell includes bundled services for retrofits, cold-starts, and legacy system modernizations, appealing to property managers and developers seeking streamlined vendor management and reduced risk.

Chicago Focus A strong regional footprint in the Chicago area with a portfolio of local masterworks positions Great Lakes as a preferred local advisor for commercial real estate owners, facilities teams, and construction firms undertaking major mechanical, plumbing, and fire protection projects within Illinois.

Mid-Mized Scale Revenue in the 50 to 100 million range and a workforce of 51-200 employees indicate capacity for sizable projects without the complexity of mega-contractor coordination. Target opportunities include mid- to large-scale facilities upgrades, hospital or campus expansions, and high-rise residential or mixed-use developments near Chicago.

Digital & Quality Focus Technical stack and on-site attention to design, budgeting, and scheduling signal a quality-first delivery model. Marketing and sales outreach can emphasize proven project controls, BIM/CAD expertise, and a track record of delivering on-time, within-budget mechanical solutions to differentiate from competitors.

Great Lakes Plumbing Heating Fire Protection Company Tech Stack

Great Lakes Plumbing Heating Fire Protection Company uses 8 technology products and services including WordPress, RSS, MySQL, and more. Explore Great Lakes Plumbing Heating Fire Protection Company's tech stack below.

  • WordPress
    Content Management System
  • RSS
    Content Management System
  • MySQL
    Database
  • Twemoji
    Font Scripts
  • Modernizr
    Javascript Libraries
  • jQuery
    Javascript Libraries
  • PHP
    Programming Languages
  • Yoast SEO
    Search Engines

Great Lakes Plumbing Heating Fire Protection Company's Email Address Formats

Great Lakes Plumbing Heating Fire Protection Company uses at least 1 format(s):
Great Lakes Plumbing Heating Fire Protection Company Email FormatsExamplePercentage
FLast@glph.comJDoe@glph.com
94%
First.Last@glph.comJohn.Doe@glph.com
4%
Last@glph.comDoe@glph.com
1%
FirLast@glph.comJohDoe@glph.com
1%

Frequently Asked Questions

What is Great Lakes Plumbing Heating Fire Protection Company's phone number?

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You can contact Great Lakes Plumbing Heating Fire Protection Company'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 Great Lakes Plumbing Heating Fire Protection Company's official website and social media links?

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Great Lakes Plumbing Heating Fire Protection Company's official website is glph.com and has social profiles on LinkedIn.

How much revenue does Great Lakes Plumbing Heating Fire Protection Company generate?

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As of July 2026, Great Lakes Plumbing Heating Fire Protection Company's annual revenue is estimated to be $50M - $100M.

What is Great Lakes Plumbing Heating Fire Protection Company's NAICS code?

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Great Lakes Plumbing Heating Fire Protection Company's NAICS code is 23 - Construction.

How many employees does Great Lakes Plumbing Heating Fire Protection Company have currently?

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As of July 2026, Great Lakes Plumbing Heating Fire Protection Company has approximately 123 employees across 2 continents, including North AmericaEurope. Key team members include Chief Executive Officer: S. G. S.Vice President Mechanical: L. S.President: D. T.. Explore Great Lakes Plumbing Heating Fire Protection Company's employee directory with LeadIQ.

What industry does Great Lakes Plumbing Heating Fire Protection Company belong to?

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Great Lakes Plumbing Heating Fire Protection Company operates in the Construction industry.

What technology does Great Lakes Plumbing Heating Fire Protection Company use?

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Great Lakes Plumbing Heating Fire Protection Company's tech stack includes WordPressRSSMySQLTwemojiModernizrjQueryPHPYoast SEO.

What is Great Lakes Plumbing Heating Fire Protection Company's email format?

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Great Lakes Plumbing Heating Fire Protection Company's email format typically follows the pattern of FLast@glph.com. Find more Great Lakes Plumbing Heating Fire Protection Company email formats with LeadIQ.

When was Great Lakes Plumbing Heating Fire Protection Company founded?

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Great Lakes Plumbing Heating Fire Protection Company was founded in 1946.
Great Lakes Plumbing Heating Fire Protection Company logo

Great Lakes Plumbing Heating Fire Protection Company

ConstructionIllinois, United States51-200 Employees

Great Lakes Plumbing and Heating Company, founded in 1946, is a mid-sized mechanical contracting firm based in the Chicago region that provides plumbing, mechanical piping and fire protection design and installation. Headquartered in Westmont, Illinois, the company pursues complex retrofit and new construction projects, designing, engineering, fabricating and installing systems.

Its client base includes organizations seeking intricate heating, plumbing and fire protection solutions for existing-building projects. The firm emphasizes on-site collaboration, with engineers, CAD operators and purchasing staff frequently on site to help ensure projects meet design, budget and schedule. Over the years, Great Lakes has completed work on notable Chicago-area structures, reflecting its experience in the region's built environment.

Section iconCompany Overview

Phone number
Website
glph.com
NAICS Code
23 - Construction
Founded
1946
Employees
51-200

Section iconFunding & Financials

  • $50M - $100M

    Great Lakes Plumbing Heating Fire Protection Company's revenue is estimated to be in the range of $50M - $100M

Section iconFunding & Financials

  • $50M - $100M

    Great Lakes Plumbing Heating Fire Protection Company's revenue is estimated to be in the range of $50M - $100M

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