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Expert Insulation & Gutter Solutions in Yarmouth
Derrick Muise Insulation has been a trusted name in the insulation and construction industry for over 30 years, serving clients across South West Nova Scotia. As a family-run business, we prioritize quality workmanship, transparency, and exceptional customer service, ensuring every project meets the highest standards. Our team is certified by the Canadian Urethane Foam Contractors Association (CUFCA), specializing in closed-cell spray foam, blown-in cellulose, and seamless gutter systems for residential, commercial, and industrial structures. With decades of combined experience, including 35 years of hands-on expertise from owner-operator Derrick Muise, we deliver durable, energy-efficient solutions tailored to each client's needs.

Our commitment to using premium materials, such as Demilec HeatLok Soya eco-friendly spray foam and Weathershield cellulose insulation, ensures long-term performance and sustainability. We stand behind our work with a 100% guarantee, addressing any post-project concerns at no additional cost. As local experts deeply familiar with regional building codes and climate challenges, we provide personalized service that prioritizes client satisfaction from start to finish. Our reputation for reliability and technical excellence has been built through consistent delivery of showcase-quality results, making us the preferred choice for insulation and gutter solutions in the region.
Services
Spray-Foam Insulation Blown-In Cellulose Seamless Gutters Attic Insulation Wall Insulation Commercial Insulation Residential Insulation Gutter Installation Crawl Space Insulation Steel Structure Insulation
Highlights and features
  • We have over 30 years of experience in insulation and construction.
  • Our team is CUFCA-certified for technical excellence.
  • We use eco-friendly, high-performance materials like Demilec HeatLok Soya spray foam.
  • Our work is 100% guaranteed with no additional charges for post-project adjustments.
  • We serve all of South West Nova Scotia with personalized, local expertise.
Associations and certifications
  • Canadian Urethane Foam Contractors Association (CUFCA)
What people say
Seamlessly by working closely Excellent workmanship Highly economical and effective Keen eye for details Showcase quality work
Update Listing
Services
Spray-Foam Insulation
Our closed-cell polyurethane spray foam insulation offers the highest R-value per inch, creating a durable air barrier to prevent energy loss. Ideal for new constructions, attics, and complex structures, it ensures long-term temperature regulation and moisture resistance. Backed by CUFCA certification and a 100% satisfaction guarantee, we use eco-friendly Demilec HeatLok Soya for sustainable, code-compliant results.
Blown-In Cellulose
Blown-in cellulose provides superior R-value coverage for attics, walls, and older homes. Made from 87% recycled materials, Weathershield cellulose resists mold, vermin, and ice damming while maintaining structural integrity over time. Our 30+ years of experience ensure precise application and compliance with Canadian building codes for lasting energy efficiency.
Seamless Gutters
Custom-built seamless aluminum gutters protect homes and businesses from water damage by directing runoff away from foundations. Designed for durability and aesthetics, our systems prevent erosion, basement cracking, and exterior staining. Tailored to residential, commercial, and cottage properties, they combine functionality with a clean, finished appearance.
People
Derrick Muise
Owner/Operator
With 35 years of hands-on experience in insulation and construction, Derrick leads with a focus on quality, client satisfaction, and technical excellence. His expertise ensures every project meets industry standards and client expectations.
Apryl Muise
Accounting
Apryl manages administrative tasks with 30 years of accounting experience, providing clear communication and support to clients. Her NSCC education ensures accurate, efficient financial operations for the business.
Questions
What insulation services do you offer?
We specialize in closed-cell spray foam, blown-in cellulose, and seamless gutter systems for residential, commercial, and industrial properties.
Are you certified for spray foam insulation?
Yes, we are certified by the Canadian Urethane Foam Contractors Association (CUFCA) for professional spray foam application.
Do you serve areas outside Yarmouth?
We serve all of South West Nova Scotia, including Digby, Annapolis, Kings, Shelburne, Queens, and Lunenburg counties.
What guarantees do you provide?
Our work is 100% guaranteed. We address any post-project concerns at no additional cost to ensure client satisfaction.
What materials do you use?
We use Demilec HeatLok Soya spray foam and Weathershield cellulose insulation, both meeting Canadian environmental and building code standards.
Reviews (1)
Charles Spencer
Jul 21, 2019 Report
Derek and the crew spray foamed and installed the attic insulation for our new build on Cape Forchu
On time, on budget and with little mess
What more can you want ?
Cannot recommend highly enough and will use again should the need arrive
Do yourself a favor use this local contractor and get good old fashioned service at a fair price