Who We Are
About Us
At Mainstreet MEP™, we’ve been where you are—building small and medium-sized MEP businesses from the ground up. Whether you’re in HVAC, electrical, or plumbing, we know the challenges of starting with limited resources, scaling from a single technician to a full team, managing a large workforce, or preparing your books for a successful sale. Our team has not only grown thriving MEP companies but also sold them to investors and/or private equity, giving us the expertise to guide you toward your goals.
We’re here to empower you with tailored financial tools, coaching, and a positive, can-do attitude. Our mission is to help you build a stronger business with solid practices and infrastructure, so you can focus on what matters—delivering top-notch service to your customers and growing the trades.
And unlike a lot of companies these days, we LOVE helping small and medium-sized MEP businesses. Sign up or give us a call today, so we can help you grow, get organized, strategize, or even plan an exit.
Know Your Numbers.
Grow Your Business.
Our mission
To help you build a stronger business with solid practices and infrastructure, so you can focus on what matters—delivering top-notch service to your customers and growing the trades.
Our vision
We envision a future where every small and medium-sized MEP business flourishes as a cornerstone of our communities, supported by solid infrastructure and quality business practices. By delivering affordable financial insights and personalized coaching, we aim to transform their small business into a lasting legacy.
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 as a management consultant for the DoD’s BRAC program, 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.