Red Flags in a Window Replacement Quote (and What to Ask Instead)

Pressure and pricing red flags

• A "today only" price that drops sharply if you sign immediately
• No written itemized price — just a monthly payment figure
• Large deposits demanded before measurements are verified
• Storm-chasing crews after a hail event with out-of-state plates and no local address

Specification red flags

• No brand, product line, or NFRC U-factor and SHGC listed
• "Insert" vs "full-frame" never stated
• No mention of altitude-rated glass for Denver elevation
• Exterior trim, capping, and interior finishing left vague
• No lead-safe (EPA RRP) practices mentioned for a pre-1978 home

Warranty and paperwork red flags

• Only the manufacturer warranty — nothing on the installation labor
• Lifetime warranty that is non-transferable or prorated without saying so
• No mention of who pulls the permit where one is required
• No proof of liability insurance

Questions that make quotes comparable

Ask every installer the same questions: What exact product and glass package? Insert or full-frame? What U-factor and SHGC? Is the glass altitude-adjusted? Who handles the permit? What does the labor warranty cover, and for how long? Comparing like for like is the fastest way to spot an outlier.

Common questions

How many window quotes should I get in Denver?

Two or three written quotes on the same specification is usually enough to see a fair price range.

Is a big same-day discount a bad sign?

Often. A legitimate price doesn't usually depend on signing that evening. Ask for the quote in writing and take time to compare.