BUILDING PERFORMANCE CONTRACTORS
Insulation Services • Heat Pumps / HVAC • Electrical
Your Insulation Experts
Spray Foam • Cellulose
Based in Nova Scotia, we strive to be the most trusted insulation contractor in Atlantic Canada. From new build projects to retrofits, we are your experts for identifying the correct insulation products for your home and installing.
With decades of experience, our certified spray foam insulators and cellulose insulation crews will ensure your home receives the coverage it needs to keep the heat in.
Your Insulation Experts
Spray Foam • Cellulose
Based in Nova Scotia, we strive to be the most trusted insulation contractor in Atlantic Canada. From new build projects to retrofits, we are your experts for identifying the correct insulation products for your home and installing.
With decades of experience, our certified spray foam insulators and cellulose insulation crews will ensure your home receives the coverage it needs to keep the heat in.
Heat Pumps
Heat pumps are the best way to heat and cool your home with energy and cost efficiency in mind. We have helped thousands of Nova Scotia homeowners save on their home energy bills while also reducing their carbon footprint.
Heat Pumps
Heat pumps are the best way to heat and cool your home with energy and cost efficiency in mind. We have helped thousands of Nova Scotia homeowners save on their home energy bills while also reducing their carbon footprint.
Our Legacy
Alstar Insulators has been serving the Maritime provinces since 1972. We are proud to have over 50 years of some of the most talented insulation contractors work with us. Today, Alstar works alongside MJM Energy to better serve Nova Scotia and the rest of Atlantic Canada, integrating modern building performance solutions with over 50 years of experience.
Our Legacy
Alstar Insulators has been serving the Maritime provinces since 1972. We are proud to have over 50 years of some of the most talented insulation contractors work with us. Today, Alstar works alongside MJM Energy to better serve Nova Scotia and the rest of Atlantic Canada, integrating modern building performance solutions with over 50 years of experience.
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The experience working with MJM and their trades people has been excellent. The work done in my home has been done by very experienced trades people. All work was done... read more
Yolande
June 30, 2025The installation of insulation (both blown-in and spray foamed) and a heat pump were completed this week. I have been impressed with the efficiency and professionalism of the workers. The... read more
Gerald
May 30, 2025I recently had the floor of my cabin spray foamed. They were prompt and arrived when they said they would. A special thank you to Gabino my technician that arrived... read more
Joey
May 30, 2025 -
We had Cohen and Olek do our insulation. They were here for 3 days. The whole time, they were respectful, efficient and courteous. They constantly informed us, what they were... read more
K.L
May 30, 2025We had a wonderful experience with the MJM Energy Team. The team was courteous, friendly, professional and prompt. They installed 4 heat pumps. Highly recommended!
Natalie
July 30, 2024I used MJM Energy recently to spray foam insulate my cabin. They were excellent to deal with and did the job ahead of schedule due to a cancellation. I would... read more
Matt
July 30, 2024 -
I had a very positive experience with MJM. The assessment done by Brett was a great interaction, I thought he did very well explaining to me what they would do... read more
Marc
July 30, 2023We had MJM to do some foam insulating— in our cellar—our house is very old and hard to access all areas. Everington and Mike did an awesome job —... read more
Rosemary
July 30, 2023The team at MJM did our spray foam insulation for walls and blown-in insulation for the attic. The quoting was quick and transparent, the work completed on time, on... read more
Patrick
July 30, 2023
