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Compare products. Understand quotes. Make better upgrade decisions.
Before you spend $10,000 to $50,000, work out what you are actually buying: which product line is in the quote, what the price includes, and whether two quotes describe the same job at all.
Sourced from Manufacturer documents NFRC ENERGY STAR Cost vs. Value IRS
14 openings · $21,500 quotePer opening
$1,536
A real output from the Quote Analyzer. It never says good deal or rip-off.
Before you sign.
Key figures are tied to a named source: manufacturer documentation, NFRC and ENERGY STAR records, published U.S. cost data such as the Cost vs. Value Report, official sources such as the IRS and the Department of Energy, and clearly labeled real quotes readers have shared. Our methodology sets out every source type and how ranges are built. Nothing is invented, nothing is scored, no product is called a winner.
Latest guides
The newest guides on windows, doors and roofing.
Windows · Nov 2, 2026
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ProVia Warranty Explained: Window and Door Coverage, Transfers and Claims
What ProVia window and entry-door warranty cards actually cover - by line, with transfer rules, labor you pay, and the right path…
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Real-wood interior Oak, Cherry or Maple over a vinyl exterior — what the current ProVia Aeris warranty covers, how it compares to…
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How long window replacement really takes — order lead time, scheduling, install day, and finishing — plus what to put in writing…
Windows · Oct 28, 2026
New Windows Drafty or Whistling? How to Find the Cause and Get It Fixed
New windows feeling drafty? How to tell a user fix from an install issue, four quick checks, and whether the installer or…
Windows · Oct 27, 2026
Casement vs. Double-Hung Windows: Which Fits Your Home?
Casement or double-hung? Choose by room, airflow, cleaning access, egress and window A/C, then compare quotes on NFRC specs, not window type.
Calculators and quote tools
Windows, doors and roofing — free, no sign-up, nothing stored.
Estimate project cost
Low, typical and higher-complexity ranges by count, material, product tier, glass and installation.
Analyze a quote
Cost per opening, what explains the price, what the quote is missing and what to ask before signing.
Calculators hub
Window and door cost estimators, quote analyzers and comparison tools in one place.
Door cost calculator
Planning ranges for entry, patio and related door replacements, built from published cost sources.
Door quote analyzer
Break down what a door quote includes, what is missing and what to ask before you sign.
NFRC label decoder
U-factor, SHGC, VT and air leakage explained and checked against your climate zone.
Roof estimate scope checker
Find vague or missing lines in a written roofing estimate before you compare totals.
Product intelligence
Window lines built from each manufacturer’s own documentation, with the warranty detail that sales conversations skip.
100 Series
Warranty transfers with the house. No double-hung in the line.
Impervia
Lifetime on rectangular units; special shapes are another material and ten years.
The full window catalog
Filter by material and positioning, then open the review or the head-to-head.
Public quote threads, analyzed
Quotes homeowners described in public forum posts, taken apart. Each case states what is known and what is missing; the bids themselves were not independently verified.
Public forum thread · 14 openings
$46,000 from one brand, $25,000 from another
Same house, same 14 openings. About $3,290 per opening against about $1,790, and neither quote stated its installation method.
Submit your quote
Anonymous, two minutes, no personal details asked.
Browse all cases
With the original source linked on every one.
Start with the decision
Windows
Costs, products, quote help, problems and energy.
Doors
Entry, patio and garage doors, price drivers and resale.
Roofing
Replacement cost drivers, quote checklist, repair vs replace and warranties.
Every price table names its source, from national remodeling data to manufacturer documentation.
Each guide ends by setting out when the upgrade makes sense for you, and when repairing or waiting does.
We sell nothing and pass on no leads. We have not tested these products, and we say so.
Planning note: Figures on this site are U.S. planning estimates. Local labor, materials and home conditions change totals substantially. See our methodology and disclaimer.