Grunau Company: Trusted HVAC, Plumbing & Electrical Services in Oak Creek, WI
For over a century, Grunau Company has been a reliable partner for homes and businesses in southeastern Wisconsin. Based in Oak Creek, WI, this family of skilled tradespeople handles everything from a leaky faucet to a complete mechanical system installation. They understand how Wisconsin's cold winters and humid summers put stress on heating, cooling, and plumbing systems, and they build solutions that last.
Business Overview
Grunau Company is a full-service mechanical engineering systems contractor. They serve both residential and commercial clients, from homeowners in Oak Creek to large facilities in healthcare and education. Their team of experienced technicians is available for scheduled maintenance, installations, and emergency repairs, ensuring mechanical systems run smoothly year-round.
Key Services for Oak Creek Homes & Businesses
Grunau Company provides a wide range of essential services. Their experts are trained across multiple trades, offering a convenient single point of contact for many common needs.
- Heating & Air Conditioning (HVAC): System repair and maintenance to keep your home comfortable in every season.
- Plumbing: Full-service plumbing including inspection, installation, repair, and critical water pipe repair.
- Electrical: Safety-focused electrical inspection, repair, and light fixture services.
- Gas Lines: Safe installation and repair of gas lines for appliances and heating systems.
This broad skill set is especially valuable for older homes in the Greendale and Oak Creek areas, where systems often need coordinated care.
Areas Served
Grunau Company proudly serves Oak Creek WI and Greendale WI. Their long history in the region means their technicians have deep working knowledge of local building styles, common issues with regional soil and water, and the specific needs of southeastern Wisconsin communities.
Company History
Founded in 1920, Grunau Company began as a specialized contractor and has grown steadily for more than 100 years. Starting with a focus on mechanical piping and metals, the company expanded its expertise to include HVAC, plumbing, and fire protection systems. This growth was driven by a commitment to solving complex mechanical challenges for industrial, commercial, and eventually residential clients. Their longevity is a testament to consistent quality and adaptation to the region's evolving needs.
Leadership & Local Presence
While specific owner details are not provided, the company's leadership is rooted in mechanical engineering and the skilled trades. The management team maintains a strong local presence, with operations based out of their Milwaukee-area location. Their involvement spans industry associations and the practical support of local projects, ensuring Grunau Company remains connected to the community it serves.
Specialties & Highlights
Several key areas set Grunau Company apart from general contractors.
- Integrated Mechanical Systems: They design and install complete systems, ensuring HVAC, plumbing, and piping work together efficiently.
- Fire Protection Services: A critical specialty including fire extinguisher service and system installation for commercial safety.
- Underground Utilities & Specialty Metals: Expertise in complex underground piping and the use of specialty metals for durable, long-lasting installations.
- Preventive Maintenance Programs: Scheduled service to prevent costly emergencies and extend system life.
Why Locals Choose Grunau Company
Residents and business owners in Oak Creek, WI, turn to Grunau Company for a simple reason: proven reliability. With a century of experience, they have seen and solved virtually every mechanical system problem. They combine engineering knowledge with hands-on trade skills, offering solutions that are both smart and practical. Their focus on quality workmanship and deep local knowledge makes them a trusted name for HVAC, plumbing, and electrical needs in the community. When you need a service provider that understands southeastern Wisconsin, Grunau Company in Oak Creek, WI, delivers steady, dependable expertise.
Contact Information
Grunau Company
: 1100 W Anderson Ct, Oak Creek, WI 53154
: http://www.grunau.com/locations_milwaukee.php
Business Services
- Electric inspection
- Electric repair
- Gas line installation
- Gas line repair
- HVAC system repair
- Light fixture repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Water pipe repair
Business Location & Hours
| Mon: | 7:30 AM - 4:30 PM |
| Tue: | 7:30 AM - 4:30 PM |
| Wed: | 7:30 AM - 4:30 PM |
| Thu: | 7:30 AM - 4:30 PM |
| Fri: | 7:30 AM - 4:30 PM |
| Sat: | Closed |
| Sun: | Closed |



















