How much does it cost to power wash and stain a weathered grey deck in Bowness back to a natural wood colour?

Professional deck restoration in Bowness typically costs $4-8 per square foot, so a 300-square-foot deck runs $1,200-$2,400 for complete stripping, cleaning, and staining back to natural wood colour.

Restoring a weathered grey deck requires more than basic power washing and staining. Grey weathering is UV damage to the wood fibres themselves — the natural lignin has broken down, leaving behind grey cellulose. Simply power washing won't remove this grey layer; you need a two-step restoration process using deck stripper followed by wood brightener before staining.

The professional restoration process starts with deck stripper application ($0.50-$1.00 per square foot for materials), which chemically breaks down the grey weathered layer and old stain remnants. After 15-20 minutes, contractors power wash with a fan-tip nozzle to remove the loosened grey fibres without damaging the wood grain. Next comes wood brightener ($0.30-$0.50 per square foot), an oxalic acid solution that neutralizes the stripper and restores the wood's natural pH for proper stain adhesion. Finally, semi-transparent or solid stain ($1-3 per square foot for premium products) brings back rich wood tones while providing UV protection.

Calgary's extreme UV at 1,045 metres elevation accelerates wood weathering faster than at lower elevations. Cedar and pressure-treated lumber left unprotected will grey completely within one season. The good news is Calgary's dry climate is ideal for deck restoration — low humidity means strippers and brighteners work effectively, and stain penetrates and cures properly. Schedule the work for temperatures consistently above 10°C with no rain forecast for 48 hours, typically May through September.

DIY restoration costs $1.50-$3.00 per square foot for materials if you rent a pressure washer ($50-80/day) and buy deck stripper, brightener, and stain. However, improper technique can permanently damage the wood — too much pressure gouges soft cedar, inadequate stripping leaves grey patches that show through new stain, and skipping the brightener step causes poor stain adhesion and early failure. Many Calgary homeowners attempt DIY restoration only to hire professionals to fix the results.

Professional contractors charge $25-45 per hour for labour and typically complete 100-150 square feet per day for full restoration. They have commercial-grade equipment, know proper chemical dwell times, and guarantee even stain coverage. Most offer 2-3 year warranties on their staining work.

When to hire a professional: If your deck is over 200 square feet, has intricate railings, or you're not experienced with chemical strippers and pressure washing technique. The cost difference between DIY disaster and professional results often makes hiring worthwhile for deck restoration projects.

Need help finding a deck restoration contractor? Calgary Deck Contractors can match you with experienced professionals in the Bowness area who specialize in bringing weathered Calgary decks back to life.

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Looking for experienced contractors? The Calgary Construction Network connects homeowners with qualified professionals:

• UR COWRY CABINETS
• Radon Lab
• True North Overhead Doors
• Quality count construction Ltd.
• Millennium Fence and Deck