About Us
Cornerstone Home Renovations was founded on a simple principle: High-quality craftsmanship should always come with a stress-free experience. We are a trusted New Hampshire home remodeling company specializing in high-quality residential renovations.
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With years of hands-on experience, our team focuses on bathroom renovations, kitchen remodels, tile work, decks and full interior home remodeling. Many of our projects involve complete gut renovations—taken down to the studs and rebuilt properly—ensuring long-lasting performance, modern design, and code-compliant construction.
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As a locally owned and operated New Hampshire contractor, we understand the unique needs of homes in this region, from older New England construction to modern upgrades. We prioritize clear communication, realistic timelines, and transparent pricing so homeowners always know what to expect.
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What sets us apart is our commitment to doing the job right the first time. We don’t cut corners. We maintain clean job sites, use quality materials, and treat every home with respect—because your home is our reputation.
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Whether you’re planning a bathroom remodel, kitchen upgrade, or complete home renovation in New Hampshire, Cornerstone Home Renovations is the contractor you can rely on for honest service and exceptional results.
Owners / Specifics
Cornerstone Home Renovations was founded by Zack Ernst and Korbin Tassi in 2025. Zack and Korbin used to work together until they joined forces as partners to meet the growing demand for residential home renovations. They originally met in relation to the fire service as Zack works as a Firefighter/Paramedic and Korbin is also pursuing to be a Firefighter/EMT.Â
Why Homeowners Trust Us
- Quality Craftsmanship:Â Homeowners choose Cornerstone Home Renovations for our attention to detail and pride in doing the job right. We focus on durable materials, proper installation, and finishes that stand the test of time.
- Honest & Transparent: We believe in clear communication and straightforward estimates. Our customers appreciate knowing what's included, what's not, and having no surprise costs along the way.
- Reliable & Professional: From scheduling to cleanup, we respect your home and your time. Homeowners trust us to show up when promised, maintain a clean job site, and complete projects efficiently.
- Local, Trusted, Experienced: As a locally owned company, Cornerstone Home Renovations is built on reputation and referrals. Homeowners value working with a contractor who understands local homes, codes, and stands behind their work.
What Drives Us
At Cornerstone, our work is more than just a renovation—it's an investment in your home. Honesty and reliability are the foundation of everything we do. We take immense pride in our workmanship, ensuring that every tile laid and every deck built meets our high standards of excellence.