Windows for a New Home: Eight Contract Clauses to Confirm Before Signing

A wedding home combines a tight budget, a hard deadline and high expectations, and windows are a big-ticket spend. Most disputes we handle involve exactly this situation — not careless owners, simply too many renovation threads and no time to read contracts line by line. Here are eight clauses to confirm before signing; each one maps to a dispute that has actually happened.

1. Specifications down to the model. The contract must name the profile series and wall thickness, thermal-break width, the full glass build-up (e.g. 5+27A+5 Low-E argon) and the hardware brand. A contract that only says 'thermal-break aluminium' surrenders interpretation to the seller.

2. Area calculation. Opening area or finished area? Minimum billing area? Corner and special-shape multipliers? Fix all of it — the classic dispute is a final area ten-plus percent above the quote 'based on actual measurement'.

3. What the price includes. Delivery, carrying upstairs, old-window removal, debris hauling, sealant consumables — together these can exceed ten percent of the total. Ask for a move-in-ready price and list exclusions in writing.

4. Schedule and delay liability. Weddings have a hard date. Write: survey to drawing confirmation, confirmation to production, installation days, and a daily penalty for delay. Serious manufacturers welcome clear schedules; vague ones are a warning.

5. Change-order rules. Mid-project layout changes happen; the contract should state that changes are priced from the original quotation's unit rates and how the schedule shifts. Verbal 'free change' promises turn into paid extras at settlement.

6. Acceptance criteria and window. Define the basis (appearance, operation, sealing, water test), the acceptance period, and the deemed-acceptance clause — with enough slack for a busy wedding schedule, not less.

7. Warranty scope and response times. How many years, are consumables (hardware, gaskets) included, response within how many hours, resolution within how many days — quantified, and written into the contract or a stamped warranty card. A WeChat promise is not a warranty.

8. Payment structure. Deposit, progress payment, final payment on acceptance — and try to hold three to five percent for three months post-installation, which conveniently spans the first test of the rainy season.

Overall advice: production takes fifteen to thirty days after confirmation, plus scheduling. Reserve about six weeks and place the window order in mid-structural stage rather than at the end. The worst case is ordering windows last and rushing installation in deep winter for the wedding date — sealants cure poorly in the cold, and the compromise is permanent.