Professional Caulking Services
Internal & External Caulking
Windows, doors, gaps & external joints
Weatherproof. Neat. Long-lasting. We provide professional silicone caulking for windows, doors, architectural gaps and external joints to keep your home protected and looking its best.
- Fully Licensed & Qualified
- Fully Insured
- Weatherproof Solutions
- Sydney Wide Service
Professional Internal & External Caulking Services
DKV Silicone Caulking provides expert caulking solutions for windows, doors, gaps and external joints. We help Sydney homeowners and builders protect and enhance their properties with clean, durable and weather-resistant finishes.
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Windows
Seal around window frames to prevent water ingress, drafts and pests.
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Doors
Neat, durable seals for internal and external door frames.
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External Joints
Weatherproofing for expansion joints, cladding and architectural joins.
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Gaps & Cracks
Seal gaps and cracks around your home for a cleaner, safer finish.
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Fascia & Eaves
Long-lasting seals for external trims, fascia and eaves.
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Brick & Render
Flexible, weatherproof caulking for brickwork, render and masonry.
See the Difference
Professional caulking not only looks better, it protects your home from water damage, drafts and costly repairs. A small detail makes a big difference.
Before
After
Weatherproof. More Comfort. Greater Value.
- Prevents water ingress
- Stops drafts and improves comfort
- Keeps pests out
- Enhances appearance
- Protects your property
- Long-lasting, durable finish
- Saves money on future repairs
Our Simple Process
A hassle-free experience from start to finish.
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Step 1: Inspect
We assess the areas, discuss your needs and provide expert recommendations.
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Step 2: Prepare & Remove Old Sealant
We carefully remove old or damaged sealant and prepare the surface for a lasting finish.
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Step 3: Apply New Silicone
We use high-quality, Australian standard silicone for maximum durability and weather protection.
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Step 4: Clean Finish
A neat, professional finish that looks great and is built to last.
Our Recent Internal & External Caulking Work
A selection of our latest internal and external caulking projects across Sydney.
View More Work
Window Sealing 
Door Frames 
External Joints 
Brick & Render 
Fascia & Eaves 
Architectural Gaps
Frequently Asked Questions
Find answers to common questions about our internal and external caulking services.
How long does silicone last?
Quality external sealants are built to handle sun, rain and movement, and typically last many years when surfaces are prepared properly.
Can you caulk external areas?
Yes — windows, doors, expansion joints, cladding, fascia, eaves, brickwork and render. We use flexible sealants designed for outdoor conditions.
Do you remove old silicone?
Yes. Old, cracked or perished sealant is removed and the joint cleaned before re-sealing, which is key to a long-lasting result.
What areas do you service in Sydney?
Yes — we work across Sydney and surrounding suburbs. Pop your suburb into the quote form and we'll confirm availability.
What type of silicone do you use?
We use high-quality, Australian standard sealants chosen for each surface — weatherproof and flexible outside, neat and durable inside.
Can you match existing colours?
In most cases, yes. We carry a range of sealant colours and can closely match existing frames, joints and render.
Get a Free Quote
Tell us about your project and we will get back to you with a quote.