GPRO CAULKING

Professional Caulking & Sealing for Homes in Markham & GTA

Clean, long-lasting sealing for windows, doors, bathrooms and exterior joints. Our crew takes care of drafts, leaks and gaps so your home stays quiet, dry and energy-efficient.

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Trained caulking technicians 10+ years caulking & sealing experience Residential & commercial buildings across Toronto & GTA Professional window & door caulking High-rise and low-rise building sealing Fully insured & WSIB-covered crew Draft, leak & water-ingress prevention Long-lasting exterior caulking systems Trained caulking technicians 10+ years caulking & sealing experience Residential & commercial buildings across Toronto & GTA Professional window & door caulking High-rise and low-rise building sealing Fully insured & WSIB-covered crew Draft, leak & water-ingress prevention Long-lasting exterior caulking systems
10+
Years Serving Toronto
2,500+
Projects Completed
20–30%
Avg. Energy Savings
3-Year
Warranty Included

Complete Caulking & Sealing Solutions

From single-family homes to high-rise buildings, we protect your property from water damage, air infiltration, and energy loss.

High-Rise & Commercial

Specialized caulking for condos, apartments, and commercial buildings. Certified for elevated work.
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Re-Caulking & Repair

Fix failed caulking before it causes damage. Complete removal and professional re-sealing.
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Window Caulking

Stop drafts, condensation, and energy loss. Professional window sealing that lasts.
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Door Caulking

Seal entry doors, patio doors, and garage doors against weather and air infiltration.
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Exterior Caulking

Complete exterior envelope sealing. Windows, doors, siding, and all building transitions.
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Bathroom & Shower

Waterproof sealing for tubs, showers, and wet areas. Mold-resistant, long-lasting protection.
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Work With GPro (Subcontractor Support for General Contractors)

We work as a specialty caulking subcontractor and coordinate directly with General Contractors and property teams. GCs manage the overall project (new construction, renovations, or building maintenance) and bring in specialized subcontractors for each trade. We fit into your schedule, follow site rules, and deliver clean, scope-defined work with clear communication.
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Why Toronto Homeowners and Property Managers Choose GPro

We’re not just another caulking company. We’re building envelope specialists who understand how Toronto's climate affects your property.

Building Science Expertise

We understand air barriers, thermal bridging, and moisture control. Our approach applies building-science principles to every project for durable, season-ready protection.

Professional-Grade Materials

We use premium sealants selected for the joint and the materials. Clean tooling, proper cure considerations, and optional color-matching where appropriate.

Trained Technicians

Proper removal, correct surface prep, and consistent application technique. We focus on clean finishes that hold up through movement and weather.

From Homes to High-Rises

Residential, commercial, and larger buildings where access planning and scheduling discipline matter. Scope-defined work with site-respectful execution.

3-Year Warranty

We stand behind our workmanship with a clear warranty policy and straightforward remediation when a warrantable issue is confirmed.

Transparent Pricing

Clear quotes with defined scope. We explain what needs to be done, why, and what it will cost — so you know exactly what you’re getting.

Our Proven 4-Step Process

From initial assessment to final warranty, here’s exactly what to expect when you work with GPro.

  1. Property Assessment

    We inspect your property to identify all areas requiring caulking. We check for visible failures, measure conditions, and identify likely root causes — not just the symptoms.

    • Comprehensive inspection of visible joints and transitions
    • Moisture and air-leakage symptom check (where applicable)
    • Photo documentation of current conditions

  2. Detailed Quote & Plan

    You receive a clear, itemized quote that explains what work is needed, which materials we’ll use, and how scheduling will work. No surprises. No hidden costs.

    • Transparent scope and pricing breakdown
    • Material selection notes (matched to joint/material/movement)
    • Timeline and access planning (including condo rules when needed)

  3. Expert Application

    We properly prepare surfaces, remove failing caulking where required, and apply new sealant with clean tooling for consistent lines and correct joint fill.

    • Removal where the existing sealant is failing or contaminated
    • Surface prep for adhesion (clean, dry, adhesion-ready)
    • Professional application and tooling for a clean finish

  4. Quality Check & Warranty

    Before closeout, we confirm finish consistency and scope completion. If requested, we provide before/after documentation and your 3-year warranty details.

    • Final walkthrough and finish check
    • Care and maintenance recommendations
    • 3-year workmanship warranty (scope-defined)

Proudly Serving Toronto & the GTA

Professional caulking and sealing services throughout the Greater Toronto Area.

Primary Service Areas

Toronto North York Scarborough Etobicoke Mississauga Vaughan Markham Richmond Hill Brampton Oakville Burlington Pickering

Additional areas available. Contact us to confirm service in your location.