
HORIZON SHIELD
Diagnoses inflated construction estimates for homeowners using AI and expert knowledge.

Product memo
Homeowners often face opaque, inflated quotes for renovations and repairs. HORIZON SHIELD provides an AI-powered diagnosis, breaking down estimates with insights from 30 years of Japanese construction expertise. It equips users with a full 9-page report and negotiation templates, acting as a trusted advisor against potentially fraudulent contractor pricing.
- For who
- Homeowners facing construction/renovation quotes
- Solves what
- Diagnosing inflated construction and renovation estimates using AI and expert knowledge.
- AI estimate analysis
- Professional cost breakdown
- Negotiation support tools
In their own words
業者より先に、価格を知る。
リフォーム・新築の見積もりが来る前に、AIが「本来の価格」を算出します。
Operator & company
Operators
1 person

Company
- Team
Indie / lean
- Founded
May 2026
- HQ
Japan
Operating model
- Business model
One Time
- Platform
Web app
- Audience
Consumers
Builder strategy
- Strategy Type
- Niche Specialist
- Stage
- Bootstrapped Lean
- Effort
- Solo Buildable
About HORIZON SHIELD Expand
HORIZON SHIELD helps homeowners understand and challenge inflated construction and renovation estimates. It combines artificial intelligence with 30 years of Japanese construction expertise to deliver a detailed cost breakdown.
Users receive a broad 9-page report, complete with negotiation templates, to ensure fair pricing. This addresses the common homeowner fear of overpaying, offering a defined workflow to validate quotes and potentially save significant money on projects.
The product provides a SHA-256 integrity proof for reports, ensuring transparency and trust.
Competitive context
2 peers · Same primary niche.
Commercial cues
- Model
- one time
- Free tier
- No
- Trial
- No
Pricing strategy
HORIZON SHIELD uses one-time licensing across the listed plans.
- • Flat rate simplifies buying, avoiding complex tiered pricing.
- • Listed plans make pricing easy to compare.

