Residential Caulking / Sealant Professionals in Toronto & Vaughan

Safeguard your home against the elements

Let our expert team help you maintain the integrity of your property with our professional residential caulking services. Don’t wait until it’s too late – invest in the longevity and comfort of your home today with Costa Caulking!

How we Help Homeowners

We will arrange a visit to see your home. In some cases, no one is required to be home for the quote.

1. Old Caulking Removal

We’ll meticulously remove old caulking around windows, doors, vents, and pipes. Fresh starts begin with clean surfaces.

2. Install foam backer rod / or *spray foam

We install closed cell foam backer rod to create a nice tight envelope around the window. Then we seal to keep the elements out of your cozy home.

3. Dowsil CWS

We use commercial grade caulking. Dowsil & Tremco, offer a long lasting and durable seal. We also give you a 10 YEAR WARRANTY. Say goodbye to leaks and drafts!

4. Debris cleanup

We install closed cell foam backer rod to create a nice tight envelope around the window. Then we seal to keep the elements out of your cozy home.

5. Free Critter Prevention Walk-Around

Our experts will conduct a thorough inspection to identify areas where critters like bugs and mice can sneak in. Safeguard your home against unwelcome guests.
The Benefits of professionally caulking your property

Discover the Benefits of Our Residential Caulking Services

At Costa Caulking we specialize in delivering top-notch residential caulking services to safeguard your home against the elements. Our expert team understands the importance of maintaining the integrity of your property, which is why we offer meticulous caulking solutions tailored to your needs.

Proper caulking is essential for maintaining the structural integrity and energy efficiency of your home. By sealing gaps and cracks, caulking prevents moisture infiltration, drafts, and heat loss, ultimately saving you money on energy bills and costly repairs down the line.

Contact us today to schedule a consultation and discover how our residential caulking services can benefit you.

Fully Insured/ Licensed

Costa Caulking is a fully insured caulking contractor.

10 Year Warranty

Have peace of mind knowing our products provide a high-quality, long-lasting seal. Conditions Apply. Ask for details.

Special Monthly Offers

Book before the end of March, and receive:

  • 15% off our regular price
  • 50% off professional window cleaning*
    *Royal window cleaners | royalwindowsgta.com
  • Bonus “Critter Prevention Protect”
    • We find and seal all small holes where bugs and critters can enter. We also install plastic breathable weep hole covers in all of the brick openings on your wall. This keeps those pests like mice out.

Are you a Homebuilder?

Costa Caulking has many great relationships with our general contractors, home builders and supervisors. We provide a clear detailed scope of work. We will also keep you informed on the progress of each project. Costa Caulking will treat your clients “the home owners” with the utmost respect. Call us today and let us impress you.

*We select only the best materials suited for different applications.

Satisfaction Guaranteed

EXCELLENT rating
Based on 47 reviews
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!
Armando La Civita
Armando La Civita
2023-11-22
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.
Bart Boniface
Bart Boniface
2023-09-28
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.
Vinnie Staffiere
Vinnie Staffiere
2023-09-25
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!
Sean t Walsh
Sean t Walsh
2023-07-06
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.
Alanna S
Alanna S
2023-07-05
My exterior caulking was in bad shape, and most needed to be replaced. Kevin came by personally, looked at everything, provided helpful & honest advice, and priced fairly. The team came by and performed the job while I was on vacation, so I can't say who did it, but I came back to windows that looked like new. Amazing.
Andrew Hood
Andrew Hood
2023-06-13
I had the all the outdoor caulking redone on my 17 year old house over the course of two days. At the same time every window was re-glazed. The Armando crew, at Costa Caulking, were professional, friendly and truly skilled at caulking and glazing. I trusted every colour decision they helped me make. The communication between Kevin, the owner, and the crew was very detailed and I really did feel they cared about doing the best job possible. The crew went above and beyond my expectation.The caulking is perfect 🙂 Thank you Armando and Armando !! Thank you Costa Caulking!
Brodie Campbell
Brodie Campbell
2023-06-06
We were extremely happy with the job performance by Costa Caulking. They were accommodating and professional. The job was completed in a timely fashion and there was no debris left on our premises. The technician was very friendly. We highly recommend Costa Caulking!
Carolyn Thomson
Carolyn Thomson
2023-05-29
This is the second time Costa Caulking did work for me. They did a fantastic job on my first house years ago. This time I’m calling them directly without asking anyone else. Kevin promptly provided me with an estimate and advised me little things I missed. Peter, the technician, patiently explained the work to me. He did a great job too. He was nice, on time, and polite. The quality of work is great, site is clean after the work done, I am very satisfied.
shouxiang qian
shouxiang qian
2022-07-27
Costa Caulking did an amazing job re-caulking all of our windows and doors of our home. They were extremely professional every step of the way. Robert who did the the work on our home was an absolute professional and gentleman. He arrived precisely at the set appointment time and did an amazing job. He treated our home with respect and the work areas were left clean and tidy. We have a lot of stonework on the front of our home and Robert did a perfect caulking around all those nooks and crannies! The job looks great and the windows look brand new. It is always nice to have a professional who knows their craft show up when you hire a contractor. Costa Caulking totally lived up to our expectations!!
Alan Kidd
Alan Kidd
2022-06-15