HVAC Double Check

HVAC Double Check Every building is a confluence of creativity and deliberate behind-the-scenes design. At HVAC Double

Meet Kathi Shoemake P.E., Principal Engineer with HVAC Double Check.One of Kathi’s favorite things about working in cons...
03/06/2026

Meet Kathi Shoemake P.E., Principal Engineer with HVAC Double Check.

One of Kathi’s favorite things about working in construction and engineering is the people. Every project brings together engineers, architects, contractors, and specialists from completely different backgrounds.

As she puts it: “Every building project becomes its own kind of social experiment — mixing personalities, perspectives, and expertise to make something real.”

Engineers can be wonderfully quirky, architects often see the world in completely different ways, and contractors come from such a broad slice of the population that every project introduces new personalities and perspectives. That variety is part of what makes the industry so interesting.

Kathi originally fell into engineering somewhat unexpectedly. In college, many of her friends were studying mechanical engineering and she joined them — initially just to tag along for study sessions. But she quickly discovered she was fascinated by understanding how things work and move in the world around us.

After graduating and moving to Seattle, she shared her resume through engineering societies and connected with someone through ASHRAE. From there she began learning HVAC and plumbing design and developed a deep respect for the systems that help buildings function properly.

Her long-term goal is simple but meaningful:
To know that decades from now, people may walk through a building and the systems inside are still working well because of the care put into the design.

Her advice for women considering a career in construction or engineering:
Get hands-on and stay curious.
Don’t let someone take over a task because they assume you can’t do it. Ask questions, learn the steps behind the work, and make sure you understand the logic behind it so you can reproduce it yourself. Break big challenges into smaller steps and approach each one thoughtfully.

Some of Kathi’s most memorable moments in the field have come from exploring the hidden parts of buildings — from climbing into mechanical lofts to navigating interstitial spaces and rooftops with incredible views (even while managing a fear of heights).

Outside of work, she enjoys festivals and fairs, being in a lively crowd, shopping, and trying all kinds of different foods.

We’re proud to be part of an industry that continues to grow stronger through diverse perspectives and shared problem-solving.

This week we’re celebrating the women contributing their expertise and perspective to the construction industry.From eng...
03/06/2026

This week we’re celebrating the women contributing their expertise and perspective to the construction industry.

From engineering design to project collaboration, their work helps create buildings that serve people every day.

Meet Tricia Drake, P.E., LEED AP, Founder and Principal Engineer at HVAC Double Check.

Tricia didn’t originally plan to work in HVAC. In college she studied autonomous vehicles, but after entering the industry she discovered she loved the puzzle-solving nature of mechanical design and the collaborative process of improving how buildings function.

One of the most rewarding parts of the work is seeing projects come to life and knowing the systems she helped design quietly support the comfort of thousands of people every day. “When mechanical systems are designed well, people rarely notice them — they just experience a comfortable building.”

A recent project highlight came early in design when relocating the mechanical room improved the layout of the entire building — a great example of how early engineering collaboration can shape a project for the better.

Her advice for women considering a career in construction or engineering:

Stick with it. The industry can feel challenging at first, but it becomes increasingly rewarding as you gain experience and confidence. The more you learn, the more opportunities there are to solve interesting problems and contribute to projects that serve people for decades.

Outside of work, Tricia enjoys getting outdoors and playing disc golf whenever the weather cooperates.

We’re proud to be part of an industry that continues to grow stronger through diverse perspectives and shared problem-solving.

Another fun event our team attended a few weeks ago, Hermanson Company’s Innovate & Elevate 2025 at the Museum of Flight...
10/22/2025

Another fun event our team attended a few weeks ago, Hermanson Company’s Innovate & Elevate 2025 at the Museum of Flight.

This gathering brought together industry leaders to share insights on emerging trends and technologies driving the data center industry forward.

We value these opportunities to learn from and collaborate with others committed to pushing design innovation in our field.

A few weeks ago, our engineers spent the day at the PNW Buildings and Plants Expo in Tacoma, connecting with facility an...
10/22/2025

A few weeks ago, our engineers spent the day at the PNW Buildings and Plants Expo in Tacoma, connecting with facility and building professionals who share our passion for efficient, sustainable systems.

The event featured hands-on demos and conversations around innovations that help buildings perform better, a mission that aligns closely with how we approach every project.

Last week, Kathi and Tricia joined the Meet the Agencies and Primes event at the Bellingham Cruise Terminal.The morning ...
09/15/2025

Last week, Kathi and Tricia joined the Meet the Agencies and Primes event at the Bellingham Cruise Terminal.

The morning was all about connection! They enjoyed meeting with local agencies, primes, and fellow businesses to share ideas and explore opportunities.

As a women-owned small business, we value spaces like this that open doors, spark conversations, and strengthen the community we’re building together!

This week we’ve been out and about in Seattle meeting with some of the incredible people we’ve collaborated with. First ...
09/12/2025

This week we’ve been out and about in Seattle meeting with some of the incredible people we’ve collaborated with. First stop: Tricia met at The Flora Bakehouse with Sergio and Sonia-Lynn from La Union Studio and Kate Brehm

We are always grateful for time with collaborators who share our passion for thoughtful, creative design and for the conversations that keep us inspired!

June marked four years of HVAC Double Check, and we'd like to thank the people and organizations who supported us and co...
07/17/2025

June marked four years of HVAC Double Check, and we'd like to thank the people and organizations who supported us and contributed to our success.

From attending conferences to stepping into speaking roles and leadership with the SWE Entrepreneurs Affinity Group, Tricia’s involvement with the Society of Women Engineers - SWE has been a major part of her personal and professional growth.

SWE is where inspiration meets action—where women in STEM can connect, share, and amplify their work. We’re honored to be part of that energy and proud to continue supporting women-led engineering firms and initiatives.

Here’s to strong communities, bold conversations, and women who make space for each other at the table.

🎉 June marked four years of HVAC Double Check and we'd like to thank the people and organizations who supported us and c...
07/02/2025

🎉 June marked four years of HVAC Double Check and we'd like to thank the people and organizations who supported us and contributed to our success.

First up: FORUM

FORUM gave Tricia a space to connect with other business owners, speak honestly about growth and challenges, and stay grounded in both the technical and human side of leadership. It’s more than networking—it’s mentorship, insight, and a reminder that we're not building alone.

We’re deeply thankful for the wisdom, camaraderie, and encouragement this community continues to offer. 💙

Today, and every day, we are grateful for the heroes who have given their lives for our country. May we honor them by li...
05/26/2025

Today, and every day, we are grateful for the heroes who have given their lives for our country. May we honor them by living our lives with purpose and by cherishing the freedoms that they fought to protect. Happy Memorial Day from HVAC Double Check

📢 Exciting News! We’re thrilled to welcome Kathi Shoemake to HVAC Double Check as she joins us full-time! With 20 years ...
03/13/2025

📢 Exciting News! We’re thrilled to welcome Kathi Shoemake to HVAC Double Check as she joins us full-time!

With 20 years of HVAC and plumbing design experience, Kathi has worked on projects ranging from restaurants and medical offices to correctional facilities and mixed-use developments. Her expertise in VRF systems, energy modeling, and sustainable plumbing solutions makes her an incredible asset to our team and our clients.

From Kathi: I joined HVAC Double Check to have the opportunity to be a leader. I look forward to managing my own projects. I also look forward to working on local tenant improvements that support our small business industry. I am expecting some challenging projects of size with energy and cost efficiency foremost in design.

I hope to compliment Tricia's strengths of ingenuity and flexibility with my consulting experience and outgoing personality. I'm going to bring my energy efficiency and water conservation knowledge to all our designs. I'm ready to work on industrial, retail/restaurant and medical offices again!

We are excited about the knowledge and leadership Kathi brings to the team, and we can't wait to see how she helps shape the future of HVAC Double Check. Join us in giving her a warm welcome!

We had a great time getting to visit so many of our local NAWIC members.
03/06/2025

We had a great time getting to visit so many of our local NAWIC members.

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Auburn, WA
98002

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Tuesday 8am - 5pm
Wednesday 8am - 5pm
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