Windows quietly decide how hard your HVAC has to work.
Old or single-pane windows let heat pour in and conditioned air leak out. Before you replace them, it is worth understanding what they are actually costing you, because the answer is often smaller than the quote.
Free to check. No calls unless you ask.
Property report. No calls unless you ask.
Why it matters
Window replacement is one of the most oversold upgrades in the industry. Understanding the house first tells you whether it is the right next move or an expensive distraction from a cheaper one.
The service life given to aluminum windows. Wooden ones are given about 30. Seals fail long before frames do, and a failed seal is invisible until the glass fogs.
National Association of Home Builders, Study of Life Expectancy of Home Components, 2007
The standard policy form excludes “wear and tear, marring, deterioration”. Windows that have simply aged out are never a claim.
ISO Homeowners 3 Special Form HO 00 03 10 00 (2000), Section I Exclusions 2.c.(6)(a)
What you have, how old the seals are, and whether the money is better spent on sealing and insulation first are all questions somebody answers at the house, with the window in front of them.
What to understand
A few things worth knowing before you decide.
What you have now
Single pane, double pane, and how old the seals are change the arithmetic completely.
Real payback
Efficiency gains vary far more than the brochures suggest, so honest numbers matter more than a pitch.
Order of operations
Sealing and insulation often come first, for a fraction of the cost and a larger share of the benefit.
Start with your property.
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