Who We Are
About Us
At Mainstreet MEP™, we’ve been where you are — building an MEP business from the ground up, wearing every hat, and figuring it out as you go. Whether you’re in HVAC, electrical, or plumbing, we understand the grind of starting lean, scaling your team, managing a growing workforce, and yes — even planning a successful exit. We’ve done it ourselves, including growing thriving MEP companies and selling them to private equity.
That experience is exactly what we bring to you.
We’re not a big-box consulting firm that’s never touched a wrench or read a P&L for a trades company. We’re MEP people who happen to be really good at the business side — and we genuinely love helping small and mid-sized contractors get organized, get profitable, and get to the next level.
From financial tools and monthly reporting to hands-on coaching and exit planning, everything we do is built specifically for the trades — affordable, practical, and designed to actually work in the real world.
Ready to stop guessing and start growing? Give us a call or sign up today.
Know Your Numbers. Grow Your Business.
Our mission
We help MEP business owners build the infrastructure they need to run a smarter, more profitable company — so they can stop putting out fires and start building something that lasts.
Our vision
Every small and mid-sized HVAC, plumbing, and electrical company deserves a shot at becoming a lasting legacy. We believe solid financial practices and the right business infrastructure shouldn’t be reserved for big companies with big budgets. Our goal is to make expert guidance affordable, practical, and built specifically for the trades.
Our Leadership
Before launching HVAC Office Solutions, Robyn Hass was CFO/CHRO of Core Mechanical – a company she co-founded and later sold to private equity. In previous director-level and consulting roles, Robyn was responsible for building scalable infrastructure and teams to support rapid program growth.
Prior to working in the mechanical industry, Robyn completed graduate school and later a masters certificate in organizational change management. After graduate school, she worked for Booz Allen Hamilton and similar firms, as a management consultant for the DoD programs, with a focus on facilities redevelopment. She has also been a manager and trainer at a large Real Estate Investment Trust (REIT).
Robyn currently maintains her SHRM-SCP senior-level HR certification, QuickBooks Online ProAdvisor Certification, as well as Gusto Payroll Certification, and many others. She is also a member of the National Association of Certified Professional Bookkeepers (NACPB) and Women in HVACR.
Why Work With Us
Decades In MEP
We’ve led teams and businesses in the service trades and facilities management, as well as sold our companies to private equity and private investors. We know what it takes to grow and scale, as well as what it takes to survive an exit.
Privately Owned
As a family-owned business, we treat our customers like family. Our commitment to honesty and integrity reflects our values. We’ve likely walked in your shoes and remember what it feels like to have the weight of the world on your shoulders.
Structured & Efficient
We understand the importance of your time. Our team is dedicated to ensuring that you receive quality financial metrics and reporting, on time, every time. All of our packages are geared for working owners in the field, and coaching is very flexible.