Build the outdoor space you deserve
Black post Construction brings expert craftsmanship to every fence and deck we build across Sarnia and Lambton County. We create durable outdoor structures that stand the test of time.
Built to last through every season
We construct fences and decks with materials that endure Ontario’s weather. Each project recieves the attention it deserves, from the first nail to the final finish.
Approach
What sets us apart
3 things matter most in construction
Clean Craftsmanship everytime
Every cut is straight, every joint is tight, every surface is smooth.
Reliable timelines you can count on
Fences, Decks, sheds, and so much more built across the region
Choosing the Right Material
| Material | Best For | Maintenance | Upfront Cost |
|---|---|---|---|
| Pressure-Treated Pine | Budget-friendly fences and decks | Higher – needs regular staining/sealing | Lower |
| Cedar | Natural look that ages well through Ontario winters | Moderate | Moderate |
| Composite | Decks where long-term upkeep matters most | Low | Higher |
| Chain Link | Functional, low-maintenance property fencing | Low | Lower |
Not sure which fits your project? Contact us and we'll walk you through the pros and cons.
Fences
Privacy, security, and
style combined
We build fences that define your property and withstand the elements. From cedar to composite, We know the right material for your needs.
Decks
Outdoor living spaces that work
A solid deck becomes the heart of your yard. We build them strong enough for gatherings and beautiful enough for quiet mornings.
Restorations
Bring aging structures
back to life
Rot, Loose boards, and weathering don’t have to mean replacement. We assess what can be saved and restore it properly
Our service rating
We take our rating serious and deliver 5 stars service
Years of experience
35+
Serving Sarnia and Lambton county with consistency
On-time
deliveries
100%
We finish when we promise, everytime
FAQ
How long does construction take?
Most fence projects take 2 to 3 days depending on length and terrain. Decks typically run 1 to 2 weeks based on size and complexity. We give you a clear timeline before we start.
What materials do you recommend?
We recommend pressure treated, Cedar hold up well in Ontario winters and ages beautifully. Composite materials require less maintenance but cost more upfront. We’ll walk you through the pros and cons of each
Do you handle permits?
We manage the permits process for you. It’s part of doing the job right and protecting your investment.
Can you repair instead of replace?
Often yes. We inspect the damage and tell you honestly whether repair makes sense. Sometimes replacement is better choice, and we’ll say so.
Do you work year round?
Spring through fall in our main season. Winter work is possible but limited. We’ll discuss timing when you call.