Japan’s Rare English-Speaking Renovation Experts (Tokyo & Saitama)

Since 2007 | 100+ Projects | English & French Support

Finding a reliable, English-speaking construction company in Japan is tough—we’re one of the few. At Ai Construction Co., Ltd., we specialize in renovations for international homeowners and investors. Whether you’re upgrading a rental unit or creating your forever home, we handle everything—permits, design, fireproofing, construction—with clear bilingual communication and no language stress.

Free English/French Consultation

    Why International Clients Choose Us

    One of Japan’s Only Truly Bilingual Renovation Teams

    • 100+ renovation projects across Tokyo, Saitama, Chiba and Kanagawa — apartments, houses, and investment properties.
    • Speak directly with English/French-speaking project managers (no agencies or translators).

    Full Legal & Permit Support

    • We handle Japan’s strict building codes, zoning, and HOA (管理組合) rules for you.
    • Experts in fireproof wooden construction for 3-5 story buildings.

    Transparent Pricing & Contracts

    • Fixed-price quotes, no hidden fees.
    • All estimates and contracts are written in your language.

    FAQ: Renovating Property in Japan as a Foreign Owner

    Q
    How much does it cost to renovate an apartment in Tokyo ?
    A

    Full remodel (kitchen, bathroom, walls, floors): ¥4,400,000 – (tax included) / 50〜65㎡
    Tip: Costs vary by size, materials, and structural changes. Get a free estimete.

    Q
    Do I need permits to renovate in Japan ?
    A

    Yes, for:

    • Condos: Restricted by HOA rules (kanri kumiai). We’ll check your bylaws.
    • Houses: Structural changes (wall removal, extensions, etc.)

    No, for: 

    • Houses: Cosmetic updates (paint, flooring).

    We handle all paperwork for foreign owners !

    Q
    How long does a typical renovation take ?
    A

    2 – 4 months
    Delays can occur due to permit approvals or material shortages.

    Q
    Can you work with me remotely if I’m overseas ?
    A

    Yes! We provide:

    • Video consultations
    • Bilingual progress reports
    Q
    Do Japanese contractors speak English ?
    A

    Most don’t — but we do. Our team includes:

    • English/French speaking Japanese project manager
    • Contracts/plans in your language
    Q
    Can you renovate traditional Japanese houses (kominka 古民家) ?
    A

    Yes—but it requires expertise. While we can bring your dream kominka to life, these historic homes (often 50–100+ years old) come with unique challenges.

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