G&W Engineering

G&W Engineering Single-source engineering partner since 1992. With all disciplines located in our St.

We coordinate MEPFP, Structural, Civil, Commissioning, Enclosure, and Assessment services under one roof to create healthy environments where people live, work, and play. G&W Engineering Corporation provides facility consulting engineering services for a wide spectrum of commercial, industrial and institutional facilities. We specialize in MEP facility systems, building commissioning, retro-commis

sioning, sustainable design (LEED) services and facility energy assessments. Founded in 1992 by principals Kevin Griesemer and Mike Williams, the firm strives for Engineering Excellence and Gold Standard results. We at G&W hold ourselves to high standards of excellence and our work, backed by deep industry experience and dynamic thinking, achieves sustainable, high quality results. Our principals have a hands-on policy and are consistently involved in every aspect of contract documentation and engineering decisions. Louis headquarters and our national exposure, we ensure high quality and efficient project management. Our approach is simple but hugely effective - capitalize on our vast, collective industry experience to produce superior construction documents that best serves our clients and achieves the maximum return on their facility investment.

It's been a busy and bustling summer for those at G&W Engineering!Between Bring Your Dog to Work Day, our Company Picnic...
08/28/2026

It's been a busy and bustling summer for those at G&W Engineering!

Between Bring Your Dog to Work Day, our Company Picnic, our 34th birthday, our SWIG "testing" trip, and our Pick Your Path challenge, G&W has been full of summer fun. Our balance of work and play is always important and shows in our culture.🥤🍨☀️🥾🐶

G&W's Electrical Team went to the 2026 EBMI Electrical Expo in Saint Charles, MO and had a great time!⚡They were able to...
08/27/2026

G&W's Electrical Team went to the 2026 EBMI Electrical Expo in Saint Charles, MO and had a great time!⚡

They were able to attend informative seminars discussing grounding systems, data centers, practical AI, and changes to the 2026 NEC. They also spent their time meeting with industry partners and were given opportunities to see their newest products. Further, the Expo gave us insight into how G&W can improve our drawings and specs, delivering even more value to our clients and their facilities.

We want to take a moment and welcome Connor to our growing Structural Engineering Team!When we asked Connor, "Why choose...
08/27/2026

We want to take a moment and welcome Connor to our growing Structural Engineering Team!

When we asked Connor, "Why choose G&W?" He replied with:
"...The opportunity to work at a company whose core values align with my own and to be in an environment where I can learn from other accomplished engineers."

We're thrilled to have you learn with us, Connor!

M-I-Z-Z-O-U Stadium is roaring with its new look.A sports stadium takes air and water from every direction, every day. T...
08/25/2026

M-I-Z-Z-O-U Stadium is roaring with its new look.

A sports stadium takes air and water from every direction, every day. The University of Missouri Memorial Stadium concourse renovation added curtain wall, storefront, and bi-fold door assemblies along the bowl, and every joint in them is a way for water to reach the fans below.

Our Mid America Testing Labs (MATL) crew is field-testing the installed systems against project specifications and ASTM/AAMA standards, so gameday stays about the game.

In this summer heat, who wants a cold drink?🥤G&W has done MEPFP and Structural Engineering for many SWIG buildings all o...
08/21/2026

In this summer heat, who wants a cold drink?🥤

G&W has done MEPFP and Structural Engineering for many SWIG buildings all over the country!
We're licensed in many states in the U.S., making it even easier to pick us as a single-source partner.

The BMW Championship is at Bellerive this week. Walk the course and you'll pass a building we engineered.G&W ran MEPFP E...
08/20/2026

The BMW Championship is at Bellerive this week. Walk the course and you'll pass a building we engineered.

G&W ran MEPFP Engineering for the 7,970 SF Tee House in 2019, and handled HVAC replacement and kitchen ventilation on the clubhouse phase.

Hoping for an exciting finish. Hit 'em straight. 🏌️

Architecture and photography by Shepphird Associates.

We love to see the process of our projects.🏗️Our MEP team took a visit to the VA Clinic in Saint Louis City, a new 15,00...
08/18/2026

We love to see the process of our projects.🏗️

Our MEP team took a visit to the VA Clinic in Saint Louis City, a new 15,000 square foot core and shell building with TI fit-out for a new diabetes and dermatology clinic for the Government’s Veteran Affairs Department.

Thank you to our team at Russel Group, Oculus, Grimes Consulting, Select Structural for collaborating with us on this exciting project!

Back to school season is upon us, and we're glad to be a part of it.✏️🏫G&W Engineering is proud to help schools and high...
08/13/2026

Back to school season is upon us, and we're glad to be a part of it.✏️🏫

G&W Engineering is proud to help schools and higher education into their best efficiency, and if you've done a little homework on us, it's clear to see that we love being a part of projects that help educate the next generation.

Help us in congratulating our very own Ryan Snudden on his recent promotion to Project Engineer!Ryan has been a great he...
08/10/2026

Help us in congratulating our very own Ryan Snudden on his recent promotion to Project Engineer!

Ryan has been a great help to our mechanical engineering team. His hard work and dedication to helping G&W projects thrive is always appreciated, and his outstanding work have earned him this well-deserved achievement.
Congratulations! 🎉

We want to share this great work-in-progress from the Cavalier Condominiums in Clayton, MO.This 25,000 square foot resid...
08/07/2026

We want to share this great work-in-progress from the Cavalier Condominiums in Clayton, MO.

This 25,000 square foot residential building was impacted by the May 16th Tornado in Saint Louis and was condemned by officials of Clayton Planning & Development. G&W has been working diligently to restore the roof from storm-related damages, water damage, and remediate the structural integrity.

Address

138 Weldon Pkwy
Maryland Heights, MO
63043

Opening Hours

Monday 7:30am - 5pm
Tuesday 7:30am - 5pm
Wednesday 7:30am - 5pm
Thursday 7:30am - 5pm
Friday 7:30am - 5pm

Telephone

(314) 469-3737

Alerts

Be the first to know and let us send you an email when G&W Engineering posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to G&W Engineering:

Shortcuts

Share