How much does a deck build cost in Longmont, CO? Josh Brooks Construction and Renovation Inc. gives you the honest pricing breakdown so you can plan your outdoor living investment with confidence.
Deck Build Cost in Longmont CO: 2026 Pricing
- Pressure-treated wood deck (small, 200 sq ft): $8,000 – $14,000
- Pressure-treated wood deck (large, 400+ sq ft): $14,000 – $24,000
- Composite deck (Trex/TimberTech, 200 sq ft): $12,000 – $20,000
- Composite deck (large, 400+ sq ft): $20,000 – $38,000
- Multi-level deck: Add 30–50% over single-level pricing
- Pergola or covered structure add-on: $6,000 – $18,000
- Built-in railings (aluminum or composite): $150–$250 per linear foot
What Affects Your Deck Cost in Longmont
- Material choice — composite costs more upfront but saves on maintenance
- Deck size and shape complexity
- Elevation height above grade — elevated decks require more structural work
- Permit fees from City of Longmont
- Demolition of existing deck
- Stairs, gates, and railing style
Composite vs Wood: Which Is Cheaper Long-Term in Colorado?
Wood costs less upfront but requires annual staining or sealing — typically $500–$1,500 per year in Longmont’s climate. Composite requires virtually no maintenance. Over 10 years, composite often costs less total. We’ll help you run the numbers for your specific situation.
Get your exact deck build cost in Longmont CO with a free estimate from Josh Brooks Construction and Renovation Inc.