Commercial Firestopping in Toronto & the GTA

Your Trusted Partner in Firestopping Services

Costa Caulking provides firestopping installation for commercial, institutional and multi-residential construction across Toronto, the GTA and Southern Ontario. We work with general contractors, developers and property managers on top-of-wall joints, slab edges, demising walls, service penetrations and other fire-rated assemblies according to project specifications and applicable system details.

We offer comprehensive firestopping services ranging from HEAD OF WALL, SLAB EDGE, DEMISING WALL firestopping, installed according to project specifications and applicable firestop system details.

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Fire-Rated Caulking:

Seal gaps and joints with fire-resistant caulking to help limit the spread of fire and smoke.
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Fire Barriers:

Installation of fire barriers in walls, floors, and ceilings to compartmentalize fire and contain it within a designated area.

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Penetration Seals:

Secure and seal any penetrations, such as pipes, cables, and ducts, to maintain the integrity of your fire-rated assemblies.

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Joint Seals:

Protect expansion joints and construction joints with fire-resistant materials to ensure continuous fire protection.

For non-fire-rated movement joints in façades, floors and parking structures, see our seismic and expansion joint sealing services.

For over 50 years, Costa Caulking has been a trusted name in the caulking and firestopping industry, renowned for our unwavering commitment to quality, safety, and precision.

“At Costa Caulking, we are committed to delivering the highest standards of quality and service. Our owners are actively involved and on-site to ensure every project is completed with precision and care.” – David Costa, President

Our firestopping services create effective barriers against the spread of fire, smoke, and toxic gases. These firestop applications include Top of Wall, demising wall, and even slab edge. We can produce engineered sign offs for any detail or work with you to find the right solution.

TOP OF WALL: When concrete blocks meet a roof deck or floor above, we have to insulate and firestop it.

SLAB EDGE: We install mineral wool to the thickness of the floor at a 50% compression, then apply a firestop product to protect from flame and smoke spread.

DEMISING WALL: This is where suite walls meet an outside wall. We have to protect the spread of fire, so we install mineral wool and apply a sprayed firestop product.

Request a Firestopping Quote

    Send us your drawings, specifications, firestop details or project information. We’ll review the required applications, schedule and site conditions.

    (416) 898-8611

    Costa Caulking—Your Building’s First Line of Defense.

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    Armando La Civita profile picture
    Armando La Civita
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    Great service from Robert who gave us the initial quote (and responded to all our subsequent inquiries) to the caulk team of Armando. The caulk application is generous and flawless!
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    Bart Boniface profile picture
    Bart Boniface
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    From start to finish we were very pleased with the work Costa Caulking did on our church building. Their estimator Rob was very thorough and a pleasure to deal with. The father and son team were conscientious and did a wonderful job. We would definitely recommend them.
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    Vinnie Staffiere profile picture
    Vinnie Staffiere
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    Just had all my windows and doors recaulked on my 24-year old house. Armando and his assistant did an amazing job. They not only removed all the old caulking but applied new caulking on all my windows and doors. They also removed all the rust that had built up around some of my windows and repainted with rust-proof paint. They were professional, quick and I appreciated how they were careful with moving some of my planters. They did a great job cleaning up as well. Very friendly. I highly recommend them.
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    Nadia Howell profile picture
    Nadia Howell
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    Excellent work!
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    Joan Shadney profile picture
    Joan Shadney
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    I AM VERY PLEASED WITH THE NEAT PROFFESIONAL JOB THE MEN WERE POLITE AND EFFECIENT UPON INSPECTION THEY ADRESSED ALL OUTSIDE PLUGS AND VENTS AMAZING WORKMANSHIP
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    Nick Moore profile picture
    Nick Moore
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    Costa did a great job. The job was done on time and looks great. Thank you.
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    Anthony Davis profile picture
    Anthony Davis
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    Excellent workmanship, great value and efficient
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    Amir Datoo profile picture
    Amir Datoo
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    Excellent service, quality work, crew was professional
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    Sean t Walsh profile picture
    Sean t Walsh
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    This is an outstanding company! If you are in need of a very reliable caulking company - Costa Caulking is your company. The crew is extremely efficient at completing a superb neat job. There was no evidence of any old caulking on site. Great service with invoicing and quick responses when answering your correspondences. This company is 10 out 10!
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    Alanna S profile picture
    Alanna S
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Costa was a great company to deal with from beginning to end. Kevin and his team are friendly, professional and very thorough. Would recommend their high quality work.
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