About SP Insulation & Barriers

SP Insulation & Barriers Ltd. is a locally owned and certified insulation company proudly serving Belleville, Trenton, Kingston, Cobourg, Brighton, Marysville, and surrounding areas across Ontario. Known for our commitment to quality craftsmanship and professional service, we've built a strong reputation as trusted insulation experts for residential, commercial, and industrial projects. From small home upgrades to large-scale construction, our goal is always to deliver reliable insulation solutions that stand the test of time.

Our licensed and experienced team specializes in spray foam insulation and intumescent coatings that boost energy efficiency, comfort, and long-term savings. We stay up to date on the latest products and techniques to ensure our work meets the highest industry standards. Whether you want to reduce heating and cooling costs, improve air quality, or increase fire resistance, SP Insulation & Barriers brings the knowledge, tools, and dedication to get the job done right.

Learn More About Us

Thorough Assessment

We start with a detailed assessment of your property to recommend the best spray foam insulation solution for your space—ensuring maximum performance, energy savings, and efficiency.

Professional Installation

Our team uses advanced equipment and proven techniques to install your insulation with precision and care, delivering top-tier results that meet or exceed industry standards.

Superior Performance

You’ll notice the difference right away—better energy efficiency, consistent comfort, and long-lasting insulation you can rely on for years to come.

Timely Completion

We respect your time and schedule. Our team works efficiently to complete your project on time and on budget, with minimal disruption to your daily routine.

Closed-Cell Spray Foam Insulation

Our Closed-Cell Spray Foam Insulation creates a strong, airtight barrier that locks out moisture and heat loss. It's a top choice for homes and businesses looking to boost energy efficiency and structural durability with long-lasting results.

Learn more

Open-Cell Spray Foam Insulation

Open-Cell Spray Foam Insulation is a flexible, breathable option that easily fills every gap and crack. It's perfect for reducing air leakage and sound transmission—an affordable upgrade that makes a big difference in comfort.

Learn more

Blown-In Insulation

Blown-in Insulation is ideal for hard-to-reach spaces like attics and wall cavities. Using high-performance fibreglass or cellulose, we deliver even coverage and lasting thermal performance with minimal disruption.

Learn more

Intumescent Paint

Our Intumescent Paint service adds a layer of fire protection that activates when you need it most. This smart coating expands under high heat to insulate structural elements, helping safeguard your space and meet code requirements.

Learn more

Painting Services

Give your property a fresh, polished look with our expert painting services. Whether inside or out, we use premium paints and clean techniques to deliver crisp lines, rich colour, and a finish that lasts.

Learn more

Polyurea Coatings

Polyurea Coatings are a tough, fast-curing solution that protects surfaces from moisture, abrasion, and chemicals. Ideal for garages, industrial floors, and more—this high-performance coating is built to last under pressure.

Learn more

Flat Roofing

We specialize in Flat Roofing solutions designed for durability and weather resistance. From repairs to new installs, our team ensures proper drainage, insulation, and protection to keep your property covered year-round.

Learn more

Waterproofing

Protect your home or commercial space from unwanted water damage with our professional Waterproofing services. We seal foundations, walls, and surfaces with care—keeping moisture out and peace of mind in.

Learn more

Experienced Team

Our crew brings years of hands-on experience and deep industry know-how, delivering high-quality results you can count on for every job—big or small.

Certified & Licensed

We’re fully licensed and certified in residential spray foam insulation and intumescent paint application, so you can trust your project is in qualified hands.

Top-Quality Materials

We use premium materials and modern techniques to ensure your insulation is built to last—keeping your property efficient and protected year-round.

Client-Focused Approach

Your satisfaction means everything to us. We work hard to exceed expectations and make sure every client is thrilled with the final result.

Tailored Solutions

No two properties are the same, which is why we offer custom spray foam insulation plans designed to fit your specific needs, space, and budget.

Trevor and his team did an amazing job insulating our floor joist on our solarium. Do to the walkout basement this floor has always been very cold during the winter months because of the overhang. When I said I was going to add sub floor to had some warmth, Trevor said don’t wast your money. He was right, we find the floor just as warm as the remainder of the house. Highly recommend Trevor and his team.

Rob L

When we were looking to spray foam our garage, Trevor and his crew at SP came highly recommended by a friend and they exceeded our expectations. He is extremely knowledgeable and takes the time to explain all of our options. They worked quickly and we are still amazing how diligently they cleaned up afterwords. Clearly this company takes a lot of pride in their work and we would absolutely recommend them to anyone.

Meghan T

Amazing work! Trevor and his crew came in to spray foam my in-laws basement. After first talking to him, he was on site 2 days later to take a look at the job and provide a quote. A few days later, they were back to do the job, exactly on schedule. They were extremely professional and had the job finished in only a few hours. Everything was completed in great time and cleaned up when the job was done. Amazing price, professionalism, and extremely knowledgable on the products they use. I would recommend Trevor and his crew to anyone and look forward to working with them again!

ArchitectOne

I had SP Insulation & Barriers insulate my home in Belleville, Ontario, and the results are fantastic! Their team was professional, thorough, and explained every step of the process. The spray foam insulation has made a huge difference in maintaining a consistent temperature, and I’ve noticed a drop in my energy bills. If you’re looking for a trusted spray foam insulation contractor, I highly recommend SP Insulation & Barriers.

Kate A

I had Trevor and his crew spray foam my new house in belleville. My wife and I were very pleased with the work. The crew was professional, punctual and tidy. I have recommended this company to friends and acquaintances looking to do thier own projects. Overall we are very happy. Thanks guys.

Adam C

Sp team did amazing job . Trevor came in with team and applied closed cell spray foam & thermal barrier to our crawl space in Belleville Ontario . Amazing work , Amazing customer service .Would recommend this crew to anybody and everybody .The amount of respect they showed our family, how they went out of their way to take pride in work and respect our home was amazing. A1 job guys thanks so much.

Penny S

Best price and service by far, the best equipment in the industry, spray foam insulation cut my heating costs down by 70% which is roughly $4000 per year.
I have used many contractors in the past and will not call anyone else, these guys are by far the best spray foam company in Belleville even the best spray foam company in Ontario

Che P

Sp insulation and barriers did a amazing job applying spray foam insulation to my 40x40 shop in bellville ontario. I couldn't ask for better service. It was left cleaner when they finished then is was before they arrived.

Matt S

SP Insulation & Barriers is your trusted partner for spray foam insulation, painting, flat roofing, polyurea coating, and waterproofing needs in Belleville, Trenton, Kingston, Cobourg, Brighton, Marysville, and surrounding areas in Ontario. As a leading insulation company, we specialize in providing top-notch solutions tailored to meet the unique requirements of residential and commercial properties.

Navigation