Typically, renovations won’t void your entire home warranty, but any coverage for areas you change or problems caused by the renovation can be excluded, at the builders discretion. The more structural or system‑related the work is, the greater the impact on coverage.

What typically happens:

• Workmanship/materials coverage: If you alter or replace something, the builder’s warranty for that item or area often no longer applies. Any damage resulting from your renovation is usually excluded.
• Structural and building envelope: Changes to load‑bearing walls, roof, windows, exterior cladding, waterproofing, or penetrations (e.g., adding a skylight, drilling through the envelope) can affect structural/water‑intrusion coverage if issues arise.
• Mechanical, electrical, plumbing (MEP): Modifying HVAC, wiring, or plumbing often shifts responsibility to the contractor who did the work, and may void related builder/manufacturer warranties if not done to spec. For example, adding air conditioning, or plug ins for basement developments.
• Cosmetic changes: Painting, flooring, cabinetry swaps typically don’t affect unrelated coverage, but damage you cause isn’t covered.
• Permits and licensing: Unpermitted or unlicensed work is a common reason for denial of warranty claims tied to the renovated area. This includes unlicensed legal suite developments.

How to protect your coverage:

• Check your specific warranty terms and Alberta New Home Warranty rules.
• Notify the builder/warranty provider before major structural or envelope changes.
• Use licensed/insured trades and obtain all required permits and inspections.
• Keep thorough records: contracts, permits, inspection sign‑offs, photos before/during/after.
• Don’t renovate areas with an active or unresolved warranty claim until the builder has had a chance to inspect and repair.
• Follow manufacturer instructions for materials/equipment to preserve product warranties.