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The configured source value 7 is provenance only and must never be described as the number of platforms studied.","The finalrankingtable is the sole authority for rank, platform mentions, platform share, average rank, and best rank. Ignore any conflicting value embedded in a entity evidence bundle.","The Consensus Ranking table must contain exactly one row per finalrankingtable entity, in that order, using that exact entityname. Never split one ranked entity into two product, model, SKU, or product-line rows, and never add another ranking row for a brand already listed. Put recommended products or plans inside that entity's ranked section.","Platform mentions count only ranking-discovery mentions. Do not substitute the number of platforms that later completed a fit assessment.","Citation IDs inside each entity bundle are local to that entity. Consolidate sources by URL using the supplied source catalog.","The URLs were collected from platform responses and were not independently validated by either writer stage.","Each fitreviewurlorplaceholder is the final site-relative CMS path for that entity's review. Link the entity name to that exact path exactly once in its ranked prose section, outside tables and headings. Never replace it with a run ID, report ID, UUID, or local output path.","Use the exact entity-namespaced citation IDs from the source catalog (e.g. e1:); never transfer a citation between entities."],"methodology":{"fit_rating_contract":["strong","good","mixed","weak","uncertain"],"included_valid_platform_count":7,"maximum_finalists":10,"minimum_mentions":2,"name":"Home Improvement Consensus Index cross-platform AI consensus analysis","platforms_included":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"platforms_queried":["openai","anthropic","deepseek","grok","perplexity","kimi","google"],"stages":["ranking_discovery","fit_assessment","normalization","editorial_synthesis"],"version":"alias-table-1"},"provenance":{"generated_at":"2026-10-03 00:46:02.891574+00","research_date":"2026-10-02","source_snapshot_sha256":"459c745787343ef8f873525204cbf6846f4c3dd0fb0dfd2fecfae288f11dfaa8","verification_scope":"public_verification"},"ranking":{"candidates_evaluated":31,"qualified_finalists":9,"ranking_unit":"Window and door manufacturer, dealer, or installation company"},"schema_version":4,"summary":"Pella ranks first in this 7-platform AI consensus index for soundproof window replacement, named by 6 of 7 platforms (85.7%) at an average listed position of 4.0. Milgard ranks second (5 mentions, 71.4%), and Soundproof Windows, Inc. ranks third (4 mentions, 57.1%) despite holding the best average position of any entity at 1.0. The strongest alternatives for distinct buyer needs are Soundproof Windows, Inc. and CitiQuiet for secondary interior glazing, Climate Seal and Indow for removable inserts, and Marvin for premium configurable replacement glazing. The study covered 7 platforms —…","target_buyer":"A homeowner near a motorway, flight path or busy street choosing glazing specifically to cut external noise.","topic":{"base_category":"Window and Door Replacement","category_criteria":["sound transmission ratings","laminated and dissimilar glazing","frame sealing","product range and frame materials","energy performance ratings","installation quality","lead time","price transparency","product and labor warranty","customer review strength"],"geography":"United States","slug":"best-window-companies-for-noise-reduction-and-soundproofing","title":"Best Window Companies for Noise Reduction and Soundproofing","use_case":"soundproof window replacement"}}