Deck Staining & Sealing Cost in Thornton, CO

The average cost of deck staining & sealing in Thornton, CO ranges from $460 to $1,725. The final price depends on Deck square footage, Current condition and prep needed, Stain type (transparent, semi-transparent, solid).

Key factors include: Deck square footage, Current condition and prep needed, Stain type (transparent, semi-transparent, solid), Railing and stair staining, Power washing included, Number of coats, Deck repair before staining. In Thornton, local labor rates and material availability also influence pricing.

Power wash the deck and let it dry 24-48 hours. Apply deck cleaner to remove gray fibers if needed. Use a pump sprayer or stain pad to apply stain, working in the direction of the wood grain. Apply two thin coats rather than one thick coat. Hire a professional for large decks, decks that need significant repair before staining, or if previous stain needs chemical stripping. Pros have commercial-grade equipment for faster, more even application.

Get at least 3 quotes from licensed professionals in Thornton. Use Fizbo SmartSearch to find and compare local painters, read reviews, and request estimates — all in one place.