404-480-4600 Info@SKCollaborative.com
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Making Buildings Better

SK Collaborative provides consulting, inspections, energy modeling, and verification services for all green building programs.

SK Collaborative works with architects, developers, builders, and owners to make their new and existing buildings more energy efficient, sustainable, and achieve green building certifications. Our services also include building envelope inspections and testing for air and water intrusion, plan reviews, professional training, program development, and technical writing.

20

States, US territories, and countries we work in

12

Green building certification programs offered

1880

The year our oldest certified apartment building was built

44592977

Total square feet of multi family projects certified

54160

Residential units certified to date

53525

Residential units pursuing third-party testing and verification

Portfolio

See A Map Of Our Work

Featured Blog Posts

Understanding Decatur's High Performance Building Ordinance

Understanding Decatur’s High Performance Building Ordinance

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Solar panels on top of a roof of a multifamily housing complex with city skyline in the background.

What Is the Green and Resilient Retrofit Program?

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Understanding the New HVAC Energy Efficiency Standards

Understanding the New HVAC Energy Efficiency Standards

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Testimonials

Carl is on the bleeding edge of the sustainable construction movement, and one of the few proponents who understands the special challenges faced by green remodelers.

Sal Alfano, Editor, Professional Remodeler Magazine

In their roles as the primary contributors to the LEED v4 Reference Guide for Homes Design and Construction, Abe and Carl were critical in making this document the incredibly valuable tool that it is.

Asa Foss, LEED Residential Technical Development Director U.S. Green Building Council

I wish we had two full days with Carl because it was very obvious that his knowledge, experience and thought processes would be highly beneficial to our organization. He covered an amazing amount of knowledge in a very short time.

Brent Runyon, Thomasville Landmarks

green|spaces has had the pleasure of working with Abe for years now. His knowledge and expertise has benefitted us; from green building program development and training curriculum to HERS ratings and building science proficiency.

Anj McClain, Director, green|spaces Chattanooga

Thank you again for all the work you did to help make our new home more energy efficient and comfortable to live in. I would recommend that anyone building a home discuss with you the advantages of using green building techniques.

Dave Matthews

Carl and Abe at SK Collaborative are straight shooters who know what they are doing and do it well. I have intentionally gone out of state to hire SK Collaborative because of their vast experience and passion for sustainable development.

Mark West, Exoterra Architects
Carl helped us create and design our dream EarthCraft home. We were drawn to Carl based on our research. His accolades in the “green building” community are extensive, and we knew he was the man for the job.
Dawn and Keith Reed
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SK Collaborative

78 Reviews

Mark L.

Feb 11, 2025 · ,
Rated 5

Service and knowledge of subject matter is unparalleled in the industry.

Customer

Dec 29, 2023 · ,
Rated 5

I would recommend SK Collaborative to anyone I know.

John A.

Aug 18, 2023 · ,
Rated 5

Professional to work with, proven to be effective with the field inspections and the quality of... Read more

David D.

Aug 29, 2022 · Thomaston, GA
Rated 5

Always on time and pleasant to work with.

Robert C.

Aug 22, 2022 · Jonesboro, GA

Very professional great people to work with

Clifford G.

Jun 6, 2022 · Charlotte Amalie, St Thomas,
Rated 5

Areas for Improvement

Excellent service. Even during Covid, the team found a way to keep the inspections and reports flowi... Read more

Team Member Helpfulness

Joe Baumann was very knowledgeable and always available to entertain questions/provide solutions for... Read more

Additional Comments

Excellent service. Please continue the great work.

Terry B.

May 31, 2022 · Atlanta, GA
Rated 5

Team Member Friendliness

All team members were extremely professional, kind, informative, and flexible in working with us. J... Read more

Team Member Helpfulness

Jennifer Goldberg--did everything possible to work with us to get the job done properly. Excellent... Read more

Additional Comments

The SK Collaborative experience was a positive one. They worked diligently to get us through a diff... Read more

Rich H.

May 28, 2022 · Savannah, GA
Rated 5

I had such a great experience with SK Collaborative. They were knowledgeable with great tips on... Read more

Additional Comments

Friendly and Great to work with. I had never done a project before that included theses details of b... Read more

Nate H.

May 23, 2022 · Decatur, GA
Rated 5

SK was knowledgeable and helpful. They were pleasant to work with.

Communication

SK sent in depth reports of finding and test results with recommendations for improvements when need... Read more

Team Member Helpfulness

Carlos (and his teammates) were great partners during our project. He was easy to work with and main... Read more

Joe S.

Apr 6, 2022 · Atlanta, GA
Rated 5

SK Collaborative has excellent team members with a wide range of expertise needed to perform in... Read more

Team Member Helpfulness

Jennifer Goldberg was my main contact throughout the multifamily rebate process. She was profession... Read more

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