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20 Optimized Homes
By GreenZist

The first Round is coming ...

Do not miss your chance in our first and less-competitive round.

Raised: 4000 Next Round: 01 Apr 2026
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Companies

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All Companies: 7
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Windfall Home Energy

| Average: 2.67

Located in Aurora Ontario, Windfall Home Energy has been conducting EnerGuide Home Energy Evaluations since 2001 and, as a member of Green Communities Canada, helped pioneer and develop the delivery of home energy programs that have been adopted across Ontario.
Address: Windfall Ecology Centre 93A Industrial Parkway South Aurora, Ontario L4G 3V5

Cost & Transparency Fair pricing, rebates, clarity 2
Assessment Quality How well they diagnose energy losses 5
Installation Quality Materials, standards, workmanship 3
Speed & Reliability Lead times, punctuality 3
Customer Support Communication, warranties, service 2
Customer Outcomes Real savings, reviews, durability 1

GreenUp

| Average: 3

GreenUP has a team of Registered Energy Advisors ready to work with you to help you upgrade your home to improve energy efficiency and reduce greenhouse gas emissions. Browse our menu of services below to see what we have to offer.
Address: 345-04 schon business park building 598 Dubai investment park first dubai

Cost & Transparency Fair pricing, rebates, clarity 5
Assessment Quality How well they diagnose energy losses 3
Installation Quality Materials, standards, workmanship 4
Speed & Reliability Lead times, punctuality 1
Customer Support Communication, warranties, service 2
Customer Outcomes Real savings, reviews, durability 3

Nadeau Energy Solution

| Average: 1.83

They are committed to helping homeowners to make their homes comfortable, safe, healthy, and energy efficient.
Address:

Cost & Transparency Fair pricing, rebates, clarity 2
Assessment Quality How well they diagnose energy losses 2
Installation Quality Materials, standards, workmanship 1
Speed & Reliability Lead times, punctuality 1
Customer Support Communication, warranties, service 3
Customer Outcomes Real savings, reviews, durability 2

Reep Green Solutions

| Average: 3

All of Reep’s programs help people live more sustainably through energy efficiency, water conservation, waste reduction and cultivating healthy yards all over Waterloo Region. The Reep House for Sustainable Living demonstrates energy, water and stormwater stewardship in a renovated 110-year-old LEED Platinum home in Kitchener. Our attainable renovations reduced the energy consumption by 86% and the greenhouse gas emissions to less than half. Workshops, tours, meetings and events draw people into the Reep House see what’s possible in their own home. Reep Green Solutions recognizes that the next 10 years are a catalyst for climate action.
Address: 20 Mill Street, Kitchener, Ontario, N2G 2Y3

Cost & Transparency Fair pricing, rebates, clarity 3
Assessment Quality How well they diagnose energy losses 3
Installation Quality Materials, standards, workmanship 2
Speed & Reliability Lead times, punctuality 5
Customer Support Communication, warranties, service 3
Customer Outcomes Real savings, reviews, durability 2

The Rideau Environmental Action League (REAL)

| Average: 2.5

The Rideau Environmental Action League conducts community-wide environmental projects and promotes environmental improvements within the Town of Smiths Falls and Lanark, Leeds and Grenville Counties.
Address: The Rideau Environmental Action League (REAL) Box 1061, Smiths Falls, ON K7A 5A5

Cost & Transparency Fair pricing, rebates, clarity 2
Assessment Quality How well they diagnose energy losses 3
Installation Quality Materials, standards, workmanship 2
Speed & Reliability Lead times, punctuality 3
Customer Support Communication, warranties, service 2
Customer Outcomes Real savings, reviews, durability 3

GreenThink Inc.

| Average: 2

Since 2022, GreenThink Inc. has been at the forefront of Canada’s energy efficiency movement, serving as a leading rebates-finding platform that connects builders and homeowners with qualified Energy Advisors from Ontario out to British Columbia. Our mission is simple yet impactful: helping Canadians create greener homes while maximizing savings through smart energy solutions
Address: 242 Colborne St W, Brantford, ON N3T 1L9 Canada

Cost & Transparency Fair pricing, rebates, clarity 2
Assessment Quality How well they diagnose energy losses 3
Installation Quality Materials, standards, workmanship 2
Speed & Reliability Lead times, punctuality 2
Customer Support Communication, warranties, service 1
Customer Outcomes Real savings, reviews, durability 2

Green Canada Energy Advisors

| Average: 3.33

Green Canada Energy Advisors specializes in Energy Evaluation Services, Net Zero Home design, and other Canadian rating systems. Our dedicated team helps you reduce costs, improve quality of life, and minimize your carbon footprint.
Address: 247 Kathryn Crescent, Newmarket, ON L3Y 1L9

Cost & Transparency Fair pricing, rebates, clarity 3
Assessment Quality How well they diagnose energy losses 4
Installation Quality Materials, standards, workmanship 3
Speed & Reliability Lead times, punctuality 4
Customer Support Communication, warranties, service 3
Customer Outcomes Real savings, reviews, durability 3

GreenZist Building Optimization (GBO)

See the guide section to learn about our exciting and beneficial journey

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Next round on 1st February
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A Message from Our CEO

At Greenzist, we believe meaningful climate action starts at home and it starts with people like you. Our mission is to bring communities together to reduce energy consumption in residential buildings, making sustainability accessible, rewarding, and impactful. We’ve created a platform where your small contributions lead to real change—optimizing homes, lowering emissions, and creating a greener future for all. I invite you to join us on this journey. Be part of a growing movement that’s not just about saving energy, but about empowering people and protecting our planet—one home at a time. Aziz Fatahi Andebil Founder & CEO, Greenzist

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