My neighbour got a quote for $15,000 less than mine - is something wrong with my quote?

A $15,000 difference in window quotes is significant and worth investigating. Several factors could explain this gap, and it's important to understand what you're comparing before making a decision.

The most common reasons for major price differences include different product quality levels, varying installation scopes, and contractor overhead differences. Your higher quote might include premium triple-pane windows with advanced Low-E coatings and argon fill, while the lower quote could be for basic double-pane windows. In Ottawa's climate, this quality difference matters significantly for energy efficiency and long-term comfort.

Installation scope can also create large price variations. One quote might include complete trim replacement, drywall repair, and exterior caulking, while another covers just the window swap. Some contractors include disposal of old windows, others charge extra. The higher quote might also include structural work if any window openings need adjustment, which the lower quote could be excluding.

Contractor differences matter too. Licensed, WSIB-insured installers with 20+ years experience typically charge more than newer companies or those cutting corners on insurance and licensing. In Ottawa's market, established contractors often have higher overhead but provide better warranties and more reliable service.

Compare the quotes line-by-line: window specifications (frame material, glass type, energy ratings), installation details, warranty terms, and what's included versus excluded. Ask both contractors to clarify any unclear items. A legitimate $15,000 difference usually comes down to significantly different products or scope of work.

For peace of mind, consider getting a third quote from a licensed installer. This helps you understand the true market range and ensures you're making an informed decision based on value, not just price.