Outdoor Carpentry · Ajax, Durham & GTA
DECKS &
FENCES
BUILT RIGHT.
Pressure-treated and composite decks, privacy fences, pergolas, and railings, built to Ontario code and built to last. Serving Ajax, Whitby, Oshawa, Pickering, and the GTA.
What We Build
OUTDOOR CARPENTRY
SERVICES
Pressure-Treated
Pressure-Treated Decks
Durable, cost-effective decks built with kiln-dried pressure-treated lumber. Ideal for ground-level and elevated builds across Durham and the GTA.
Composite
Composite Decks
Low-maintenance composite decking in a range of colours and profiles. Resistant to rot, splinters, and fading, built to last 25+ years.
Privacy
Privacy Fences
Cedar and pressure-treated privacy fences installed plumb and level. Full perimeter builds, partial screens, and pool enclosures.
Pergolas
Pergolas & Shade Structures
Custom pergolas, shade sails, and overhead structures that extend your outdoor living season and add serious curb appeal.
Every Job Includes
NO HIDDEN
EXTRAS.
EVER.
- Free on-site measurement & quote
- Permit assistance (where required)
- Pressure-treated or composite material options
- Stairs, railings & gate installation
- Post-hole digging & concrete footings
- Full site cleanup on completion
Service Area
WE COME TO YOU
Gritwell serves Durham Region, the GTA east end, and beyond.
Common Questions
DECK & FENCE
FAQ
Do I need a permit for a deck in Ajax?
Most decks over 24" above grade require a building permit in Ajax and Durham Region. Gritwell assists with the permit application process and ensures all work meets Ontario Building Code.
How long does a deck build take?
A standard 12×16 pressure-treated deck typically takes 2–3 days once materials are on site. Composite builds and larger projects may take 4–5 days. We give you a realistic timeline before we start.
What's the difference between pressure-treated and composite?
Pressure-treated lumber is more affordable upfront and easy to repair. Composite decking costs more initially but requires almost no maintenance, no staining, no sealing, no splinters. We'll help you choose based on your budget and lifestyle.
Do you install fences on slopes or uneven ground?
Yes. We use racked (stepped) or contoured fence panels to follow the grade of your yard. Every post is set in concrete for long-term stability regardless of terrain.
READY TO BUILD?
Free on-site consultation · No obligation · Ajax & GTA