One quote was way lower than the others - should I be worried about that?

Yes, you should be cautious about quotes that are significantly lower than others. A quote that's dramatically below the competition often indicates corners being cut somewhere - whether in materials, installation quality, permits, or insurance coverage.

Common reasons for unusually low quotes include:

• Using lower-grade materials or windows with poor energy ratings


• Rushing installation without proper air sealing or finishing work


• Not including necessary permits or inspections


• Lack of proper insurance coverage (WSIB, liability)


• Inexperienced installers who may not understand the full scope


• "Bait and switch" tactics where the price increases once work begins

In Ottawa's climate, poor installation can be costly. Improperly installed windows lead to air leaks, condensation problems, and significantly higher heating bills. The money you save upfront often gets lost in energy costs and potential repairs within a few years.

Red flags to watch for:

• Quote doesn't specify window brands, energy ratings, or installation details


• Contractor can't provide WSIB clearance or liability insurance proof


• Pressure to sign immediately or cash-only payment requests


• No local references or established business address


• Quote seems too good to be true compared to others

Ask the low bidder specific questions: What window brand and model? What's the U-factor rating? Is installation warranty included? Can they provide recent local references? Are permits included if needed? This helps determine if it's genuinely competitive pricing or if quality is being compromised.

Get more than one detailed quote through Ottawa Window Pros and compare them line by line — a quote well under the others usually differs in materials, warranty, or what's included.