Do you like your house but feel you don’t have enough room? Do you wish your garage was bigger or that you had a guest bedroom? Not having the space you want to work on your cars, whip up gourmet meals, or entertain guests can make you feel uncomfortable and stressed. You deserve to love your home. So when you wish for a larger or renovated space, building home additions may be the solution for you!

Choose from Various Types of Home Additions and Renovations

When you’re ready to expand the size of a special area in your home, you need a quality house additions contractor to do the work. Twin Brook Construction can help you create the extra space you want. While working on your custom addition, you may even want to update some other areas of the house. Changes like HVAC system updates, window replacements, or trim work are best done now while construction is already underway.

furnished sunroom

Sunroom Addition
and Remodel

Do you dream of bathing in the sunlight throughout the year while not having to worry about the weather? With an all-season sunroom, you can make this dream a reality! Sunrooms are a great way to add square footage to your home and give you an area to entertain guests. We can complete them quickly and economically. Best of all, a sunroom addition does a nice job of bringing the outdoors into your home. You can also select from pre-fab models or create a custom space to meet your needs.

New house additions

Garage Expansion
and Remodel

A garage conversion or expansion can provide you with more space to park another car, an area for woodworking, or a storage place. It’s also a solid investment in the equity of your home. The average return on a free-standing garage addition is nearly 64%! Besides, a garage addition will also reduce weather-related damage to your car or save you from renting a storage unit. We can also repair or replace your garage doors to match the exterior of your home and provide you with enhanced curb appeal.

A bar with a cooler to the left and a sliding barn door.


If you have an unfinished basement, a remodel is a great way to add more living space—such as a family room, to your home—and get back nearly 70% of your home addition’s cost. The average costs of basement remodels range from $20 to $35 per square foot, which is less than the square footage costs attached to an above-ground room addition. In fact, it’s up to three times more cost-efficient than building an addition, particularly when building up with multi-story additions.

custom mudroom

Custom Trim Work
and Casings

Adding a few details to your home through custom trim work or casings can enhance the visual interest of a room and make your home stand out more. The options are almost endless—interior doors, crown molding, window trim, baseboards, door casings, wainscoting, coffered ceilings, and chair rails are just a few examples. A home addition project that includes molding and trim work throughout your home can combine into one cohesive design that exudes sophistication and elegance.

Sitting Room


There are many reasons to build a custom addition—it’s more convenient, adds more space, has luxury, and adds to your home’s value. Make sure you know what you’re trying to accomplish before moving forward so you don’t break your budget. Perhaps you want a bonus room for a home office and guest bedroom. Or you want to introduce more natural light into your living room by adding a bow window. Our house addition contractors can do it for you, no matter the dreams you have for your addition!

A large kitchen with an island and three windows.


A home remodeling project that includes your kitchen is a great way to add value and function to your home. But sometimes, the space you have in your kitchen isn’t enough square feet for your chef-worthy creations. With a kitchen bump-out, you can expand the floor plan of your kitchen to add the extra space you want for that large kitchen island or meal prep station. Ready for the kitchen space of your dreams? Our team has years of experience to make the process stress-free from start to finish!

The Home Addition and Renovation Process Is as Easy as 1, 2, 3!

Once you’ve decided on your desired home renovation or addition, call us. We’ll work with you every step of the way, including:

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1. Design Consultation

With any renovation, it’s important to plan upfront to ensure you accomplish your goals. Here are some questions we’ll help you answer:

  • Do you need an addition, or can your current layout be modified to accommodate your needs?
  • How much will it cost, and what can you afford?
  • Are there any building codes or property line restrictions to consider?
  • What materials are you hoping to use?
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2. Planning & Finish Selection

Once you have some answers to these questions, it’s time to plan your home additions. Twin Brook Construction has done home additions and renovations of all shapes and sizes, so we are ready to help you with your next project.

We’ll start by documenting your wants and desires and begin drawing up plans for your chosen work. It’s helpful to map out the details of your addition, including size, materials, style, and access to and from the new area. Then, we can get started building.

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3. Construction

Whether you’re adding to your primary bedroom, adding a formal dining room, or updating your garage, we’ll begin the construction process on time. We do all the work ourselves, using time-honored traditions that provide high-quality results.

Our house addition contractors have more than a decade of experience and can handle any challenge. You’ll be pleasantly surprised at our workers’ friendly demeanors, professionalism, and exceptional skill at bringing your vision to life.

View Samples of Our Previous Work

We’ve made home additions of all kinds for our clients in the West Chester, Wayne, Villanova, Bryn Mawr, and Downingtown areas. If you’d like to see a few examples or get some ideas for your addition, check out our gallery!

New glass doors on wooden addition.
A new room with a fireplace insert.

Quality Home Additions Done Right

When you’re ready to start building a man- or woman-cave, renovating your garage, or expanding your kitchen, we can help! We’d love to bring your dream home addition to life. Call us to set up a consultation and get the ball rolling.

Find Additional Information on Our Blog

Looking for more information on the design process? Or do you want to know more about what to expect during the home additions and renovations construction? Learn more on our blog!