Duralum® & Four Seasons® Authorized Dealer
Custom Aluminum Patio Covers and Pergolas in Sacramento, CA
Licensed Class B General Contractor CSLB #1152161 delivering premium Duralum® & Four Seasons® insulated structures engineered for Northern California heat, installed in 1–2 days.

Our Structures
Six ways to cover your California backyard
Every structure is factory-fabricated in the USA to your exact measurements — no field-cut lumber, no compromises.

Insulated Patio Covers
Duralum Monterey Insulated Roof Panels (IRP)
Maximum heat and noise control — 15–20°F cooler underneath.
Explore
Lattice Patio Covers
Duralum Phoenix Lattice
50% soft filtered shade with constant natural airflow.
Explore
Flat Pan Patio Covers
Duralum Californian Solid Flat Pan
100% sealed protection from sun and rain at the best value.
Explore
Gable Patio Covers
Gable Roof Aluminum Covers
Tall A-frame ceilings that mirror your home's roofline.
Explore
Custom & Combo Patio Covers
Custom Architectural & Hybrid Duralum Systems
Complex geometry and hybrid roof systems, engineered to fit.
Explore
Available Colors
Premium Duralum Powder-Coated Finishes
Factory-applied finishes engineered for California weather with exceptional long-term color stability.
View finishesEngineered for the Valley
Aluminum outperforms wood on every line that matters
A wood cover is cheaper on day one. Over twenty Northern California summers, it is not close.
| Criterion | Duralum® Aluminum | Wood |
|---|---|---|
| Maintenance | $0 — never needs paint or stain | Repaint or reseal every 3–4 years |
| Termites & dry rot | 100% immune | High risk of structural damage |
| Lifespan | 50+ years, limited lifetime warranty | 10–15 years |
| Fire rating | Class A non-combustible | Combustible material |
| Heat protection | Foam core — 15–20°F cooler | Absorbs heat, dries and cracks |
| Finish | Factory powder-coated Weatherwood® | Field-applied, fades in UV |
15–20°F
Cooler underneath
The Duralum Monterey insulated roof panel bonds a 3-inch high-density foam core between two skins of aerospace-grade aluminum. It reflects solar radiation, blocks conductive heat, and silences rain noise — turning a 105°F patio into the most comfortable room of the house.
See insulated coversOur Process
Four steps from first handshake to lifetime warranty
Consultation & Precise On-Site Measurement
Vlad walks your property, takes precise on-site measurements, evaluates load-bearing walls, studies how the sun crosses your yard, and confirms the slab or footing preparation required.
Custom 3D Design & USA Factory Fabrication
You approve a 3D design of your structure, then your individual kit is fabricated at the Duralum® / Four Seasons® factories in the USA to your exact dimensions.
Clean & Fast 1–2 Day Installation
A certified crew assembles your structure in 1–2 days and leaves no debris in your yard — the job site is swept clean at the end of every day.
Final Walkthrough & Lifetime Warranty Handover
The founder personally inspects the finished structure with you and hands over your Limited Lifetime Material Warranty and workmanship documentation.
Tap the speaker icon to turn the sound on.
Meet the founder
Vlad measures every yard himself
Vlad Bilous founded Under Cover Patio & Construction Inc. on one rule: the person who quotes your project is the person who stands behind it. With 8+ years in California outdoor construction and 1200+ completed projects, he walks every property, studies how the sun crosses the yard, and personally inspects the finished structure.
Vlad Bilous
Founder & Lead Estimator
Client Reviews
Trusted across Greater Sacramento
Real projects, real neighborhoods, verified 5-star reviews.
Hub: Antelope, CA · Zones 1–3 free on-site estimateService Area
Free on-site estimates across Northern California
Zones 1–3 (0–50 miles from our Antelope, CA hub) receive a free on-site measurement. Zone 4 projects are quoted individually.
Dream Patio Designer
Not Sure Which Patio Cover Is Right For Your Home?
Explore different patio styles with Dream Patio Designer. See how your future patio could look before making any decisions. Then submit your request. We'll prepare a personalized concept together with a preliminary estimate for your project.
Launch Dream Patio DesignerFree Estimate
Tell us about your backyard
Share a few details and Vlad will call to schedule your free on-site measurement. Phone or email — whichever you prefer.
- · No obligation and no high-pressure sales visit
- · Written estimate with the Duralum® model and color specified
- · Permit and engineering handled under CSLB #1152161
Ready to reclaim your backyard?
Free on-site measurement with the founder. No pressure, no obligation — just an honest plan and an honest price.
California CSLB #1152161 · Licensed & Insured

