
Deck & Patio Building in St. John's, NL
Compare 43 deck & patio building contractors near you in St. John's and surrounding area with an average rating of 4.7/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 28, 2026
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Deckify in St.John's

DEHTEROV Services - Renovations and Design

Dave Peet Siding & Renovations

Redeckulous Custom Decks & Fences Inc.
Other Businesses in This Area
C J Tucker & Son
Deck-R-Out Contracting Inc.
LVL Painting, Decks and Exteriors
Outdoor Contractor Inc.
Quality Fencing
Capital Fencing & Backyard Living Inc
5.012½+ years onlineCapital Fencing & Backyard Living Inc.
5.012½+ years onlineClayans Constructions Company
5.01+ year onlineConsolidated Construction & Landscaping Services
5.011 mo onlineCooper Custom Homes Ltd.
5.0DJ Decks
5.0Reshape Consulting Inc.
5.0Tuckamore Contracting Ltd.
5.0K & P Contracting Ltd
4.8Newfoundland Wood Siding Company Ltd.
4.7Shed City and Outdoor Living Limited
4.7St Johns Exteriors Inc
4.5Core Contracting Inc
4.3Healy Services Ltd.
4.210½+ years onlineFirst Rate Reno's
4.03½+ years onlinePyramid Construction
3.9Other Services in St. John's
Deck & Patio Building in St. John's, NL
Deck and patio building in St. John's (Newfoundland) handles Atlantic Canadian conditions: 1850s-1930s historic homes throughout downtown and Quidi Vidi, mid-20th-century homes in the Avalon suburbs, and newer construction in developments like the north side. Typical jobs include composite and pressure-treated cedar decks (salt-rated where appropriate), screened-porch additions, and ground-level patios. Atlantic climate — heavy rain and snow (St. John's gets over 500 cm annual precipitation), salt-air from the harbour, extreme wind exposure, and brief summer season — drives material selection. Composite decking and hurricane-rated connections are common specifications.
Residential deck builds in St. John's run $15,000-$40,000 CAD depending on size and materials; composite decks premium 20-30% over pressure-treated. Newfoundland requires a Home Improvement Contractor license. St. John's permits apply. Salt-air exposure drives stainless-steel fastener specification. Wind-load ratings critical given Atlantic exposure — secure connections to framing, proper lateral bracing. Snow-load rating minimum 50 psf for most of the province. Material delivery from mainland adds 15-25% to material costs compared to mainland Canadian pricing.
Frequently Asked Questions
- What deck material works best for St. John's climate?
- Composite (Trex Enhance, TimberTech Edge) handles salt air, extreme rain, and snow with minimal maintenance. Pressure-treated cedar requires annual staining and sealing. Premium composite over PT cedar by 20-30% but pays back in 10+ years of maintenance savings given the harsh climate.
- Do I need specific wind-load ratings for a St. John's deck?
- Yes — Atlantic wind exposure demands wind-rated connections between deck and house, proper lateral bracing, and secure railing anchors. Most residential builds use Simpson Strong-Tie wind-rated connectors. Budget 10-15% more for properly wind-rated construction vs. minimum code.
- When is the best time to build a St. John's deck?
- June-October. Winter deck construction is impractical given snow and frozen ground. Spring is muddy. Summer and early fall are optimal. Book 2-4 months ahead for peak-season projects — local builder capacity is limited.
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