Wiegmann Associates

Wiegmann Associates Wiegmann Associates is one of the HVAC industry’s premiere national design/build mechanical contractors.

From HVAC design to systems installation and service, Wiegmann has focused on innovative, energy saving and cost-effective HVAC solutions since 1995.

Several of our employees recently celebrated more than 10 years on Team Wiegmann! Help us congratulate Kyle Boschert, To...
06/19/2026

Several of our employees recently celebrated more than 10 years on Team Wiegmann!

Help us congratulate Kyle Boschert, Todd Jacks, P.E., Craig Ross, P.E. and Nick Andell.

Thank you for being instrumental to our growth and project excellence.

For the last 14 years, Team Wiegmann has come together to support pediatric healthcare in St. Louis by donating a portio...
06/09/2026

For the last 14 years, Team Wiegmann has come together to support pediatric healthcare in St. Louis by donating a portion of their wages to the annual St. Louis Children's Hospital KIDstruction campaign.

This year, we held a fun contest to engage our team during the weeklong campaign. The challenge: Guess the team member based on a childhood photo.

To learn more and donate through our official KIDstruction team page, visit

https://support.stlouischildrens.org/site/TR/KIDstruction/General?pg=team&team_id=5135&fr_id=1400

We are thrilled to welcome Levi McRoberts to the Wiegmann team as a Controls Technician! He brings nine years of HVAC in...
06/05/2026

We are thrilled to welcome Levi McRoberts to the Wiegmann team as a Controls Technician!

He brings nine years of HVAC industry experience, including as a lead installer, general manager and sales account manager for commercial, industrial and residential clients.

Wiegmann was proud to support local women pursuing a career in construction as a Gold sponsor of the NAWIC Annual Schola...
06/02/2026

Wiegmann was proud to support local women pursuing a career in construction as a Gold sponsor of the NAWIC Annual Scholarship Golf Tournament. The proceeds help fund scholarships given by NAWIC St. Louis #38.

Shown (Left to Right)
Wiegmann Associates' Grant Wiegmann and Craig Ross, P.E.
with their guests from Kadean Construction Company, Nick Walls and Ryan Grass.

Great teamwork isn't just for the office! Team Wiegmann Associates recently enjoyed a company outing at Chicken N Pickle...
05/27/2026

Great teamwork isn't just for the office!

Team Wiegmann Associates recently enjoyed a company outing at Chicken N Pickle in St. Charles. We served up friendly competition and shared laughs over delicious food.

By Rachel Brown, May 27, 2026

05/25/2026
>> Mental Health Awareness Month >Stress and burnout increase risk. Caring for mental health helps everyone go home safe...
05/22/2026

>> Mental Health Awareness Month >
Stress and burnout increase risk. Caring for mental health helps everyone go home safe.

Fuel Your Body, Support Your Mind >>
Nutrition and hydration impact energy, mood, and concentration.

It’s OK to Take a Pause >>
Short breaks reduce mistakes and help maintain focus throughout long shifts.

Communication Reduces Stress >>
Clear expectations and open dialogue lower pressure and improve teamwork.

Disconnect to Recharge >>
Time away from work helps restore mental and physical energy.







Help us welcome our new Controls Technician — Evan Anderson! Our Controls Technicians are responsible for assisting oper...
05/22/2026

Help us welcome our new Controls Technician — Evan Anderson!

Our Controls Technicians are responsible for assisting operations with day-to-day maintenance, identifying and escalating advanced technical issues, and troubleshooting complex mechanical, electrical, and pneumatic systems. They also lead continuous improvement initiatives by utilizing downtime analytics to solve and implement system enhancements.

>> Mental Health Awareness Month
05/15/2026

>> Mental Health Awareness Month

This is what All in Together — Construction Safety Week's 2026 theme — means for Team Wiegmann.>> Your safety choices ma...
05/07/2026

This is what All in Together — Construction Safety Week's 2026 theme — means for Team Wiegmann.

>> Your safety choices matter—every task, every day.

>> Safety isn’t limited to the jobsite. In our offices and shops, everyday potential hazards deserve the same attention.

>> See something unsafe? Say something. No concern is too small and every concern voiced is welcome.

>> Safety includes mental health. Take breaks. Manage your well being. Look out for each other.



This week marks Construction Safety Week 2026, and the industry theme says it all: All In Together. Built on three pillars—Recognize, Respond, and Respect—this year's theme reminds us that safety isn't a solo act. It takes every person on every jobsite committing to the same standard. Research a...

Address

650 Fountain Lakes Boulevard
St. Charles, MO
63301

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