Industrial Solutions Built to Last — Under One Roof
Fabrication • Welding • Electrical • Millwright • Outages
For over 37 years, NIM has delivered precision, safety, and reliability to Western NY’s leading plants.
Keep Running Without Headaches of Downtime and Managing Multiple Crews
At NIM, we believe you shouldn’t have to choose between speed, safety, and quality.
Our mission is to deliver transparent pricing, skilled crews, and peace of mind for every project. We bring integrity to every job, innovation to every solution, and a commitment to excellence that ensures nothing leaves our shop unless it lasts.
Expect
- No hidden fees, no nickel-and-diming
- Jobs finished on time with full accountability
- Safety and precision at the core of every service
%
Client REtention rate
satisfied customers
projects completed
Invested in machinery & technology
certifications
5 Ways NIM Builds Trust and Keeps Your Plant Running
1
one call simiplicity
Fabrication, welding, electrical, millwright handled under one roof
2
Lightening-fast quotes
2–3 day turnaround
3
proven track record
Trusted by Moog, 3M, and ReWorld for 30+ years
4
transparency first
If we can’t do it, we’ll tell you and connect you with someone who can
5
Capacity + Craftsmanship
Expanded fabrication shop through the Croisdale engineering and fabrication department merger , backed by 90+ years of family-run expertise
Stop downtime before it starts
Preventive Maintenance & Reliability Assessment
One call today can save you from million-dollar shutdowns tomorrow.
- Precision diagnostics of piping and structural systems
- Capital-ready reporting with prioritized repair roadmaps
- Certified fabrication & welding to execute needed fixes
- Surface protection & coatings to extend system life
- Safer facilities & reduced liability for your team and leadership
Protect your people, your plant, and your bottom line.
One Call.
Four Core Services.
Complete Industrial Confidence.
Fabrication & WElding
Generational craftsmanship plus advanced automation. CNC Waterjet, HD Plasma, Laser, Orbital & Robotic welding for reliable results, every time.
millwright & outage
Safe machinery installs and outage management with 35+ years of proven results. From rigging and alignment to mobilizing 30+ contractors, we keep you on schedule.
hugo electrical
In-house industrial electrical solutions through HUGO Electrical. Seamless integration with mechanical services for faster timelines, clearer communication, and code-compliant installs.
Specialty & safety Services
Pipefitting, dry-ice blasting, safety bollards installation and confined space certified work—all delivered with the same precision and safety you expect from NIM.
YOUR JOB DONE RIGHT, THE FIRST TIME
Call DJ Mielke
One call connects you to everything
Get a Transparent Quote in 2–3 Days
Clear scope, no surprises
Watch the Work Get Done Right
Reliable crews, rigorous quality control, proven systems, lasting results
Why Relationships Matter More Than Contracts in Industrial Work
For over 37 years, Niagara Industrial Mechanical has grown through reputation, not gimmicks. Our strength comes from long-term partnerships built on integrity, precision, and a pride of place here in Western NY.
When we hired Croisdale Fabrication core team members, we brought together nearly a century of generational craftsmanship with modern automation—expanding our capacity without losing the values that built this company.
We’re guided by:
integrity
Say it. Do it. Deliver it
Excellence
Nothing leaves our shop unless it lasts
innovation
Smart automation and precision tools that save time and reduce costs
pride of place
Built in Western NY, trusted by industries that keep our communities strong
what our clients have to say
Niagara Industrial Mechanical was able to complete a much needed production part with a very short lead time and delivery date. This being the first order that we purchased from NIMS has shown us that they are committed to producing and delivering whatever is needed for their customers with the highest quality and production standards there is. Thank you Niagara Mechanical and we look forward to doing business with you in the future.
I can always count on the team at NIMS to perform safe, quality work, while meeting our sometimes demanding scheduling requirements.
More than once we had a last minute repair and NIMS was there to help us out. Their guys were on time and did a great job!
We have been working with Niagara Industrial Mechanical on smaller jobs before, but this bigger project really shows their value now as we see them delivering work every day. They are handling a long-term relining and structural reinforcement job for us now, and from the start, they’ve been straight-up and dependable. When something didn’t look right, their crew stopped, called, and made sure we were all on the same page—no guessing, no ego. They don’t skip steps or rush to move on. The work’s been solid, consistent, and they take real pride in what they do. Costs are fair, they help keep things moving by sourcing materials when needed, and they stay flexible when plans change. Communication’s been easy, respectful, and professional all the way through. Overall, it’s been a smooth experience, and we’re already lining them up for more work as they are earning our trust.
NIMS does exceptional work. They follow all of the plant and safety rules and always clean up when they complete the job. NIMS is an excellent company to have as a vendor. Highly recommended.
Trusted By
