Services

As an Andersen-Certified Contractor O'Sullivan Home Improvement is dedicated to providing top-quality customer service with expert Andersen-certified installation practices. Whether you're looking to keep your current window sizes and styles or looking to change them, we're happy to be of service. Regardless of whether you choose an Andersen product or decide on another manufacturer, we'll always provide you with the same top-quality customer service, installation practices, and materials that ensure you get the best possible results. Supported by the nation's largest window manufacturer and their 2-year warranty on installation, 10-year warranty on hardware, and 20-year warranty on glass, we'll keep your home dry, energy-efficient, and rot-free for decades to come. Give us a Call Now!

Whether you're contemplating replacing a traditional hinged entry door, an energy-efficient storm door, a gliding patio door, or an atrium door for a maximum clear opening width, O'Sullivan Home Improvement stands out as your local expert here on Cape Cod. We are dedicated to finding you the best solutions tailored to you and your home's unique needs so each installation is completed to your liking and with the expertise required to ensure the longevity and energy-efficient performance you desire. At O'Sullivan Home Improvement we understand the importance of a well-chosen door not only in aesthetics, but in enhancing your home's security and energy efficiency as well. Give us a Call Now!

O'Sullivan Home Improvement always has you covered when you're looking to replace your home's siding with new cedar shingles, clapboard, Hardie fiber cement, or PVC in any style you choose. We are dedicated to enhancing your home's curb appeal while simultaneously protecting it from the harsh, ever-changing coastal environment. We offer top-quality materials that stand the test of time, ensuring durability and reliability. By utilizing modern materials and adhering to the latest industry standards, we’ll ensure your home remains weathertight and rot-free for decades to come. Don’t wait until small issues lead to major repairs, give us a call today so we can address your siding needs and help prevent costly damage to your home in the future. Call Now!

Whether you're thinking about adding a beautiful new deck, creating a cozy sunroom, or simply looking to enhance and upgrade your existing outdoor living space, you’ve definitely come to the right place. Our team is dedicated to collaborating closely with you, taking into account your unique ideas and preferences every step of the way. Together, we'll explore an array of materials, designs, and styles tailored to your vision, ensuring that your time spent outdoors is just as comfortable and enjoyable as the moments you spend inside. With our expertise and your inspiration, we can create an outdoor oasis you'll love. Give us a Call Now!

If you're contemplating building an attached addition or an ADU, O'Sullivan Home Improvement is dedicated to bringing your vision to life while providing you with a smooth and rewarding experience. We'll manage the entire design process and secure all necessary permits and approvals while working with you closely to choose the best design, colors, and materials to complement your existing property and express your desired style. We'll then integrate it seamlessly on your property with your home's existing features to create a space you and your family can cherish for years to come. Give us a Call Now!

When you're considering replacing an asphalt, cedar shake, or rubber roof, O'Sullivan Home Improvement has you covered with our comprehensive services. Our expert team will not only enhance your home's curb appeal but also ensure its robust protection against the harsh and ever-changing coastal environment. We pride ourselves on adhering to the highest industry standards, guaranteeing that your home remains dry and your roof stays weathertight and rot-free for decades to come. With O'Sullivan Home Improvement, you can enjoy peace of mind knowing that your investment is built to last, safeguarding your property for years ahead. Give us a Call Now!

O'Sullivan Home Improvement is your premier choice to upgrade any of your trim and moldings. Whether you're considering replacing your wooden exterior trim with PVC to prevent further moisture and pest damage, seeking to refresh your interior trim and moldings for a new style, or looking to integrate built-in shelves and furniture to optimize your home's functionality, we're here to make it happen. We'll work with you to find the design and materials you're looking for and breathe new life into your home with our attention to detail and expert craftsmanship. Let us rekindle the love you have for your home and transform it into the space that brings you joy and comfort for decades to come. Give us a Call Now!

No matter if you opt for a pre-made or custom-built bulkhead or shower, O'Sullivan Home Improvement is committed to bringing your vision to life. We will leverage our decades of experience and unleash our creativity while collaborating with you closely to choose the best materials and design to optimize functionality and style for that outdoor Cape Cod shower you've always dreamed of. If replacing a leaking rusty bulkhead with a low-maintenance cellar door that looks great while keeping your cellar dry and mold-free is what brings your here then we also have you covered. We're dedicated to crafting durable and rot-resistant structures that will offer both utility and enjoyment of your home for you and your family for many years to come. Give us a Call Now!

Southeastern Massachusetts and Cape Cod are truly unique destinations for both living and vacationing. O'Sullivan Home Improvement is committed to keeping your home well-maintained and in pristine condition, whether during the busy summer season or the slower winter months. We take pride in offering clear and convenient solutions tailored specifically to you and your property’s needs, regardless whether the Cape is your year-round residence, a summer getaway, or an investment property. We also provide detailed electronic invoicing and payment methods, including debit and credit card to making it easier than ever to care for your home while you're away. We'll take the hassle out of home ownership. Give us a Call Now!