Aluminum vs. vinyl windows in Bonita, CA
Original aluminum single-pane windows are common in San Diego homes built from the 1950s through the 1980s. Vinyl has replaced aluminum as the standard choice for new installs because it insulates far better and does not corrode in coastal salt air.
What to know
- Aluminum conducts heat and cold directly through the frame, undermining even a dual-pane glass upgrade
- Aluminum corrodes in coastal salt air over time; vinyl does not
- Vinyl typically costs less than a comparable dual-pane aluminum unit and performs significantly better thermally
- Aluminum with a modern thermal break is sometimes used for large commercial-style openings but is uncommon in standard residential replacement
Aluminum vs. vinyl in South County San Diego
South County's large stock of 1960s-1970s aluminum single-pane windows is the most common replacement scenario in the region.
FAQs for Bonita
Why did older San Diego homes use aluminum windows?
Aluminum was the standard, cost-effective residential window frame material from roughly the 1950s through the 1980s before vinyl became widely available and cost-competitive.
Can aluminum windows be upgraded to dual-pane without full replacement?
In some cases a dual-pane insert can go into a sound aluminum frame, but the aluminum frame itself still conducts heat and cold at the perimeter, limiting the energy benefit compared to a full vinyl or fiberglass replacement.
Is there ever a reason to choose aluminum today?
Aluminum with a modern thermal break is occasionally used for large commercial-style or architectural openings, but for standard residential window replacement in San Diego, vinyl or fiberglass is virtually always the better choice.
Does this apply to homes in Bonita?
South County's large stock of 1960s-1970s aluminum single-pane windows is the most common replacement scenario in the region.
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