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Castle Rock Underdeck Pergolas
Combine your underdeck ceiling and pergola into one engineered system — coordinated finishes, shared framing, integrated lighting and drainage, built for Castle Rock weather.
Castle Rock Service
Castle Rock underdeck pergolas by Undercover
An underdeck pergola is one continuous system: the underdeck ceiling beneath an elevated deck plus a coordinated pergola covering an adjacent ground-level patio or seating area. Same materials, same color palette, same gutter and drainage tie-in. The result reads as one architectural element instead of two add-ons stacked on the same property.
Castle Rock homes — especially walk-out and tri-level layouts — benefit from this approach because the underdeck and pergola often sit within 10 feet of each other. Independently installed, the two systems clash in finish and can create awkward drainage seams. Built together, they share gutters, downspouts, and lighting circuits, and the overall install runs faster than two separate projects.
- One coordinated material palette
- Shared gutter and downspout system
- Integrated lighting on a single circuit
- Engineered for combined wind and snow load
- Single permit and single install crew
- Lifetime warranty on both elements

Design considerations
Integrated vs separate decisions
If your underdeck and pergola will sit within visual line of each other, integrate them. Mismatched materials, panel orientations, and finish colors look like two unrelated retrofits. If the pergola sits on the opposite side of the home or is screened by landscaping, separate installs are fine. We walk every site before quoting and tell you straight which approach fits.
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Cost and schedule
Investment for the combined system
Combined underdeck + pergola installs run $40 to $70 per sq ft of covered area for the integrated system. A typical Castle Rock project (400 sq ft underdeck + 200 sq ft pergola) lands at $24,000 to $42,000. The combined install is roughly 15 to 20 percent less than two separate projects because of shared crew time, shared permit, and shared material orders.
Schedule: 5 to 10 days for typical residential combined install. Permits in Douglas County typically take 7 to 14 business days; we file as soon as the design is approved.
Common Questions
Answers before you call
How much does the combined system cost?
Combined 400 sq ft underdeck + 200 sq ft pergola: $24,000 to $42,000 installed. Roughly 15 to 20 percent less than two separate projects because crew, permit, and material orders are shared.
Should the pergola match the underdeck material?
If they sit within visual line of each other, yes. We use the same panel finish and color so the eye reads them as one system. Separate distant locations can use different materials.
What is the schedule?
5 to 10 working days for the typical combined install. Permits in Douglas County add 7 to 14 business days lead time before crew starts.
Will it interfere with deck use?
Underdeck install does not require deck disassembly — work happens from below. Pergola install is ground-level. Most clients keep using the deck during the install.
Heating and lighting?
We rough in lighting circuits and gas heater mounts during install. Final fixtures (recessed cans, fan, infrared heater) install after the system is complete; you can spec at design or add later.
Still have a question? Contact us or call (303) 481-1967.
Service Area
Where we work in Castle Rock, CO
We serve all of Castle Rock and surrounding Douglas County neighborhoods — Castle Pines, Highlands Ranch, Lone Tree, Parker, The Pinery, and the rural acreage between.
Other Castle Rock Services
Explore what else we do
Castle Rock Service
Castle Rock Underdeck Systems
Castle Rock walk-out homes have wasted space under their elevated decks: open joists, exposed lumber, and the empty patio area underneath.
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Castle Rock Pergolas
Architect-grade standalone pergolas built for Castle Rock weather — the same craftsmanship and materials we put into every underdeck project.
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Castle Rock Underdeck Cleaning
Seasonal deep clean of your underdeck ceiling, gutter, and drainage system — clears debris, restores finish, catches small issues before they become repairs.
Explore →View all Castle Rock services · See our work · Get a free quote