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Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm

Clow Darling

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Thunder Bay, ON
Clow Darling

Clow Darling is the largest complete mechanical service contractor in Northwestern Ontario providing

At Clow Darling Limited we offer our customers the most comprehensive source of contracting services available in the industry. We strive to anticipate customer needs, develop viable approaches, and implement proactive solutions. It is this philosophy and commitment that keeps Clow Darling Limited at the forefront of technology and continually evolving our capabilities. For over eight decades Clow Darling, has earned the confidence of our clients by providing consistent professional management expertise, high technical standards, and unparalleled performance. Geographically, we undertake local (Thunder Bay and area), national, and international projects. Our industry leading efforts to provide a safe and healthy work environment have allowed us to retain highly qualified staff and a committed workforce. Our depth of expertise is demonstrated in each and every project that our company has completed. We invite you to become one of our many satisfied customers, and to enjoy the comfort that comes from knowing you have the right people to perform the job at hand.

09/05/2026

A reminder to our customers that Clow Darling Ltd. will be closed on Monday, September 7th for Labour Day.

Our team will be taking the long weekend to relax, recharge, and enjoy some well-deserved time with family and friends. ❤️

🚨 EMERGENCY SERVICES WILL REMAIN AVAILABLE throughout the holiday weekend for those who require assistance.

We will resume regular business hours on Tuesday, September 8th.

From all of us at Clow Darling Ltd., we wish you and your family a safe, relaxing, and enjoyable Labour Day weekend! 🇨🇦🍂

08/01/2026

Please note that Clow Darling will be closed on Monday, August 3rd in observance of the Civic Holiday.

Our team will return to regular business hours on Tuesday, August 4th.

If you are experiencing an HVAC, plumbing, refrigeration, or boiler emergency, our 24/7 emergency service will remain available throughout the holiday weekend.

From all of us at Clow Darling, we hope you have a safe, relaxing, and enjoyable long weekend! ☀️

06/27/2026

🍁 Holiday Reminder 🍁

Just a friendly reminder that Clow Darling will be closed on Wednesday, July 1st in observance of Canada Day.

If you experience a plumbing or HVAC emergency while we’re closed, our after-hours emergency service is available. Please call (807) 623-7485, and we’ll be there to help.

From all the staff at Clow Darling we hope everyone has a safe, fun, and Happy Canada Day! 🇨🇦

06/22/2026

Our team recently completed the installation of a new rooftop HVAC unit at the Red Lake Community Centre.

From coordinating the delivery and crane lift to safely setting and commissioning the new unit, this project required careful planning, teamwork, and expertise every step of the way. The new rooftop unit will help provide reliable heating, cooling, and ventilation for the facility and the many community members who use it throughout the year.

A special shoutout to our technicians and project partners for their commitment to safety and quality workmanship. Whether we’re working close to home or serving communities across Northwestern Ontario, we’re proud to deliver solutions that keep buildings comfortable and operating efficiently.

Thank you Municipality of Red Lake for trusting Clow Darling with your HVAC needs! 🏗️🛠️

06/21/2026

Today, we celebrate all the fathers, grandfathers, stepfathers, father figures, and mentors who make a difference every day through their hard work, guidance, and support.

At Clow Darling, we’re especially grateful for the dads on our team who balance long days, early mornings, and emergency calls while still making time for their families. Your dedication both at work and at home does not go unnoticed.

Wishing all the amazing dads a relaxing day filled with family, laughter, and appreciation.

💙💙💙💙💙💙💙💙

06/04/2026

June is Men’s Mental Health Month 💙

At Clow Darling, we want to take a moment to recognize the importance of men’s mental health and the incredible individuals who help keep our communities running every day.

Many of our technicians spend long hours on the road, respond to emergency calls, work in challenging environments, and put their skills to work helping our customers when they need it most. Their dedication, professionalism, and commitment do not go unnoticed.

This month, we encourage everyone to remember that mental health is just as important as physical health. Checking in with friends, family, coworkers, and even yourself can make a meaningful difference.

To all of our technicians and colleagues: thank you for your hard work, resilience, and the pride you take in your work. We appreciate everything you do for our customers, our company, and our community.

💙 It’s okay to ask for help. It’s okay to talk. And it’s okay to take care of yourself.

05/22/2026

🏒 STANLEY CUP FINAL 4 POLL 🏆

Who’s taking home the Cup this year?! 👀🔥

💛 Vegas Golden Knights
❤️ Colorado Avalanche
💙 Montreal Canadiens
🖤 Carolina Hurricanes

Drop your winner below ⬇️
Who survives the Final 4 battle and lifts Lord Stanley? 🏆

05/20/2026

Beat the heat with a new Armstrong Air Central Air Conditioning Unit installed by the trusted team at Clow Darling Limited! 🏠☀️

Whether you’re looking for a new installation or service our experienced team is here to help keep your home comfortable all summer long.

✅ Reliable cooling
✅ Professional installation
✅ Friendly local service
✅ Free quotes available

Don’t wait until the hottest days of summer arrive — book your estimate today! 😎📞

05/15/2026

Wishing everyone a safe and wonderful Victoria Day long weekend from all of us at Clow Darling! ☀️🎣

Please note that our office will be closed on Monday for the holiday.

Our after-hours emergency service will still be available throughout the weekend for any urgent heating, cooling, plumbing, or refrigeration needs.

We hope you enjoy the long weekend with family, friends, and some well-deserved relaxation! 😊

05/15/2026

Today we celebrate an incredible milestone as Dana Lamke retires from Clow Darling.

Dana’s hard work, dedication, and commitment over the years have left a lasting impact on our team, our clients, and everyone fortunate enough to work alongside her. Her knowledge, kindness, and steady presence will truly be missed around the office.

While we are sad to see her go, we are so excited for this next chapter filled with well-deserved relaxation, new adventures, and time spent doing the things she loves most.

Thank you, Dana, for everything you have contributed to Clow Darling. Wishing you nothing but happiness, health, and endless joy in your retirement! Congratulations! 💐

Address

1201 Cameron Street
Thunder Bay, ON
P7C0A1

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Telephone

+18076237485

Website

http://clowdarling.com/

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