Portland’s Trusted Experts in Home Remodeling & ADU Construction
At J Leahy Construction, we are a small business committed to integrity, transparency, quality craftsmanship, and working with vetted subcontractors to ensure the highest level of service and client satisfaction. Whether you’re remodeling your home, building an ADU, or enhancing your outdoor living space, J Leahy Construction delivers solutions and finished projects that stand the test of time in the Pacific Northwest.
Founded by Jake Leahy in 2011, J Leahy Construction specializes in high-end finish carpentry, framing, and tile installation to create beautiful, functional spaces with precision craftsmanship and attention to detail.
Home Additions & ADU Construction
Seamlessly expand your living space with expertly crafted home additions that are tailored to your needs and built to complement the existing structure of your home. At J. Leahy Construction, we handle every detail with precision and care, ensuring the new space feels like a natural extension of your living environment. Because we own and operate our own excavation equipment, we’re able to fully manage the entire process in-house. From site preparation and groundbreaking to framing, finish work, and final inspection—eliminating delays, improving efficiency, and maintaining quality control every step of the way.
Kitchen & Bathroom Remodels
Seamlessly expand your living space with expertly crafted home additions designed to enhance both the functionality and beauty of your property. At J. Leahy Construction, we specialize in custom home additions throughout the Portland Metro area and the greater Pacific Northwest, bringing unmatched craftsmanship and attention to detail to every project. Whether you’re adding a new bedroom, expanding your kitchen, or building a home office, we ensure the new space blends seamlessly with your existing structure. With our own excavation equipment and a highly experienced team, we’re able to manage the entire construction process in-house—from initial site preparation and groundbreaking to framing, finish carpentry, and final walkthrough. This allows us to maintain strict quality standards, reduce project delays, and deliver reliable, efficient results for homeowners across Portland and surrounding areas who are looking to invest in long-term comfort and value.
Window & Door Installations
Upgrade your home with energy-efficient, high-performance window and door solutions that enhance both comfort and curb appeal. At J. Leahy Construction, we specialize in the expert installation of premium brands such as Marvin, La Cantina, Weather Shield, Milgard, and more—each selected for their durability, design, and energy efficiency. Whether you’re replacing outdated windows, installing new sliding doors, or upgrading your entire home with modern materials, our team ensures a precise fit and flawless finish. These upgrades not only improve your home’s insulation and reduce energy costs, but also increase natural light, security, and overall resale value. Serving homeowners throughout the Portland Metro area and the Pacific Northwest, we’re committed to delivering long-lasting results that align with the region’s architectural styles and climate demands.
Outdoor Living Spaces
Enjoy the outdoors in every season with custom-built decks and patio covers designed for year-round comfort, functionality, and style. At J. Leahy Construction, we create outdoor living spaces that are tailored to your lifestyle—whether it’s for hosting gatherings, relaxing with family, or simply enjoying the beauty of the Pacific Northwest. Our team works closely with you to design and build decks and patio covers that seamlessly integrate with your home’s architecture while standing up to Portland’s diverse weather conditions. Using high-quality materials and proven construction methods, we ensure each project delivers long-term durability, low maintenance, and visual appeal. From covered entertaining spaces to multi-level decks that maximize your yard’s potential, we help homeowners across the Portland Metro area create outdoor environments that add lasting value and daily enjoyment.
Project Management: What Sets Us Apart
At J Leahy Construction, we believe that exceptional project management is key to delivering outstanding results. Our approach begins with detailed and transparent bids, ensuring that clients have a clear understanding of project costs and scope from the start. Each project is managed by a dedicated project manager, who provides a consistent presence and open communication throughout the process.
To further streamline the experience, we offer our clients access to a dedicated project portal and project calendar, allowing them to track progress, view schedules, and stay informed at every stage. This commitment to organization and communication ensures a smooth,
stress-free construction process setting us apart from other firms.
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Examples of Our Work
Take a look at some of our recently completed projects to see the quality, craftsmanship, and attention to detail that go into every build. From full-scale home remodels and ADU construction to custom decks, tile work, and finish carpentry, these images highlight the range of work we’ve delivered for homeowners throughout the Portland Metro area. Each project reflects our commitment to thoughtful design, efficient execution, and lasting results that stand up to the Pacific Northwest’s unique climate and style.