Patio Enclosures in Fairfax, VA

Premier Patio Enclosure Builder in Fairfax, VA

Dominion Custom Decks builds screened porches, glass sunrooms, and fully conditioned room additions across Northern Virginia. If you have an open patio or deck that sits empty whenever the mosquitoes come out or the weather turns cold, we can turn it into usable living space. Give us a call at 571-201-1149 to walk through your options.

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How We Turn Open Decks into Year-Round Rooms

Adding a stick-built enclosure or glass addition gives you extra square footage without the nightmare of a complete home teardown. We regularly take existing concrete slabs, open framing, and elevated decks in Fairfax and convert them into framed screened porches, three-season rooms, and insulated four-season sunrooms.

Every home layout is different. A colonial off Braddock Road might need rooflines spliced directly into the existing overhang, while a townhome off Lee Highway might require a low-pitch roof build with specific drainage details. We custom-frame every enclosure so it looks like it was built with the rest of the house rather than slapped on as an afterthought. You get protection from spring pollen bursts, summer humidity, biting insects, and winter drafts, while still feeling like you are sitting outside in your backyard.

Why Enclosing Your Outdoor Space Makes Sense

21 Years of Real Field Experience: We know how to handle complex roof tie-ins, heavy glass panel loads, and custom timber framing that stands up to decades of weather.

Fairfax County Permit Experts: We handle the local zoning rules, set-back requirements, HOA submission packages, and county inspections so you never have to jump through administrative hoops yourself.

Durable Framing and Hardware: From heavy-gauge structural posts and synthetic weather seals to heavy-duty screen retention systems, we use materials built to survive ice storms and muggy summers.

Direct Owner Oversight: You get straightforward communication, realistic timelines, and a crew that shows up on time and cleans up the job site every afternoon.

From First Measurement to Final Walkthrough

Initial Site Inspection

We start by inspecting your current slab, deck support posts, house band joists, and roof overhangs. We talk through how you plan to use the space, take precise structural measurements, and discuss layout options.

Design and Material Selection

Our team puts together structural layout plans. Together, we choose window packages, framing finishes, door styles, ceiling finishes, and rooflines that complement your home's exterior.

Permitting and Construction

Once county permits and HOA paperwork are approved, our carpenters set support footings, erect structural posts, build roof trusses, secure wall panels, and install flashings to create a watertight seal.

Final Quality Check

We walk the finished room with you, test all windows and door latches, review maintenance guidelines, and make sure every trim piece meets our standards before signing off.

Recent Projects Around Fairfax

Take a look at some of the screened porch conversions, insulated sunrooms, and custom patio additions we have recently completed for homeowners across Fairfax County. Each build features custom framing work, clean trim details, and long-lasting materials selected specifically for local weather conditions.

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Professional Trex Decking Installation in Gainseville

Professional Deck Installation in Fairfax of a new composite deck

Professional Deck Builders Constructing a Custom Deck in Northern Virginia.

What Your Neighbors Have to Say

Read honest reviews from local homeowners who hired Dominion Custom Decks to convert their open outdoor areas into comfortable enclosed living spaces. See what they have to say about our carpentry quality, scheduling punctuality, and overall communication.

      EXCELLENT  
   Based on 20 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Jon Tiller 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have a townhouse in Haymarket which needed an old wood deck teardown and a new composite deck build. I met up to 5 deck contractors to get estimates. Bill, the owner of Dominion Custom Decks and Patios, discussed and reviewed options with me at the townhome and took measurements. Bill worked professionally with me providing estimates and updates when I needed to change the scope a few times before starting.  Bill is driven by meeting his commitments, and I always got real time responses back directly from Bill. During the build, the rain kept coming but Bill and his outstanding team got it done  working through it. My deck was one of the simpler ones, and I got the same attention and focus from Bill and his team as the other larger decks builds he had going on at the same time. I am very happy with the new deck!  Bill personally made sure everything was done right, down to replacing a patio brick that was cracked around the deck post he informed me about. I recommend anyone to Dominion Custom Decks and Patios. You will receive excellent service and craftmanship!
  
 
      Posted on Google  
   
   Janet Pelfrey 
 
 
 
 Trustindex verifies that the original source of the review is Google. I was extremely impressed with the services I received from Dominion Custom Decks and Patios! The crew arrived on time, did quality work and paid attention to detail. They were professional, answered my questions and provided exceptional service. I also liked how they were reasonably priced. I would certainly use them again in the future.
  
 
      Posted on Google  
   
   KevarmeSCLLSoftball 
 
 
 
 Trustindex verifies that the original source of the review is Google. Dominion Custom Decks provided us with a fantastic backyard transformation.  We were struggling to find a way to use our backyard due to grade, and the smaller deck we had was aging.  Bill, from Dominion, led us through the process of envisionment and planning, answering all of our questions through the process with absolutely no pressure or rush.  Once we made our choices (and a few times of changing our minds) Bill's crews came in an executed flawlessly.  The communication was spot on, and they were timely, respectful, and each milestone was on-time and on-budget.  There were no surprises at all.  The finished product surpassed our expectations!  I couldn't recommend Dominion and Bill enough. Kevin Armentrout
  
 
      Posted on Google  
   
   Charles Billingsley 
 
 
 
 Trustindex verifies that the original source of the review is Google. We worked with Bill to remove an existing deck and replace it with a larger deck with some major modifications.  This was after Bill had put a sidewalk in leading to our front door. Bill was very helpful in the selection of materials as well as modifications needed to join the new deck to the existing infrastructure.  In spite of some personal issues that came up during the construction, Bill was responsive and professional. I would highly recommend him for your deck or patio needs.
  
 
      Posted on Google  
   
   Matthew Lechtman 
 
 
 
 Trustindex verifies that the original source of the review is Google. The whole family loves our new deck! Upgraded the whole summer. Very professional, excellent service and communication! Thank you Dominion!
  
 
      Posted on Google  
   
   Charity Drinkard 
 
 
 
 Trustindex verifies that the original source of the review is Google. Bill does incredible work! He is friendly and easy to work with. He is detail oriented and strives to ensure 100% satisfaction. The company met my expectations and went above and beyond. Thank you so much!!
  
 
      Posted on Google  
   
   Saj 
 
 
 
 Trustindex verifies that the original source of the review is Google. We recently decided to invest in a roof deck for our home, and after careful consideration and research, we chose Dominion Custom Decks and Patios for the project. From start to finish, our experience with Dominion Custom Decks and Patios exceeded our expectations in every way. First and foremost, the craftsmanship demonstrated by the Dominion team was truly exceptional. From the initial consultation with Bill to the final touches, every step of the construction process was executed with precision and attention to detail. The materials used were of the highest quality, and it was evident that the team took great pride in their workmanship. One aspect that stood out to us was the level of customization offered by Dominion Custom Decks and Patios. They worked closely with us to design a roof deck that perfectly complemented our home's architecture and met our specific needs and preferences. The end result was a stunning outdoor space that seamlessly integrated with our property and exceeded our dreams. Not only is our new roof deck aesthetically pleasing, but it is also incredibly functional. Dominion Custom Decks and Patios took into account factors such as sun exposure, privacy, and airflow when designing the layout, ensuring that our roof deck is comfortable and enjoyable year-round. We have already a couple of gatherings with friends and family on our new deck, and it has quickly become the focal point of our home. In addition to their exceptional craftsmanship and design expertise, the team at Dominion Custom Decks and Patios was a pleasure to work with. They were professional, courteous, and communicative throughout the entire project, keeping us informed every step of the way. Any questions or concerns we had were addressed promptly, and they went above and beyond to ensure our complete satisfaction. Overall, we could not be happier with our experience with Dominion Custom Decks and Patios. Our new roof deck has not only enhanced the beauty and value of our home but has also provided us with a newfound appreciation for outdoor living. We wholeheartedly recommend Dominion Custom Decks and Patios to anyone in search of a top-notch outdoor living space. Thank you, Dominion Custom Decks and Patios, for exceeding our expectations and creating the roof deck of our dreams!
  
 
      Posted on Google  
   
   Srinivas Vippa 
 
 
 
 Trustindex verifies that the original source of the review is Google. Bill and his team completed an under the deck patio at my home. It was great working with Bill. He’s very honest and goes extra mile to make customer happy. I highly recommend him.
  
 
      Posted on Google  
   
   Debora Saunders 
 
 
 
 Trustindex verifies that the original source of the review is Google. Bill was very responsive from the beginning. He sent me a quote within a couple days. Once we had the permit, his crew was here everyday until project was completed. Bill and his crew were easy to work with and respectful. The quality is what I was expecting and I’m very happy with the finished deck and screened porch.

Common Questions About Building an Enclosure

How long does the build actually take?

Most physical builds take anywhere from two to six weeks once construction begins on site. However, the total project timeline starts earlier because of administrative requirements. Obtaining building permits, pulling engineering stamps, and getting formal approval from your local HOA in Fairfax County typically takes three to four weeks before our crew can break ground. Simple screened porch conversions move faster, while four-season room additions with double-pane glass, electrical rough-ins, mini-split HVAC systems, and drywalled interiors take longer. We give you a clear schedule before starting and keep you informed every step of the way.

What drives the price of an enclosed porch or sunroom?

Total project costs depend on structural scope, overall square footage, foundation requirements, and material selections. If your existing deck frame needs additional support posts or poured concrete footings to carry the weight of a new roof and heavy glass walls, that work will affect the total estimate. Upgrading to high-efficiency Low-E glass, custom ceiling finishes, integrated electrical outlets, or ductless heating and cooling units will also add to the final figure. Splicing into an existing roofline requires more framing labor than setting up a simple shed roof. We provide fully itemized estimates after visiting your property so you know exactly where every dollar goes before committing.

Which materials handle Northern Virginia humidity and winter weather best?

Because humidity spikes sharply in summer and temperatures drop below freezing in winter, structural materials must handle extreme expansion and contraction. We work extensively with extruded aluminum framing, heavy vinyl systems, and pressure-treated or composite-wrapped timber. For four-season sunrooms, double-pane glass units with argon gas fills and thermal breaks stop heat transfers. Screen materials range from standard aluminum mesh to extra-durable vinyl-coated polyester designed to withstand scratching pets while keeping gnats and mosquitoes out.

Where do you build?

Dominion Custom Decks serves homeowners throughout Fairfax and the surrounding Northern Virginia area. Our crews regularly complete projects in neighborhoods near Old Town Fairfax, Fair Oaks, Burke, Oakton, Vienna, and Annandale. Being local means we can quickly visit your site for initial measurements, conduct on-site inspections, and coordinate efficiently with local county inspectors.

How hard are these rooms to clean and maintain?

Modern enclosure materials are straightforward to care for. Powder-coated aluminum and vinyl framing only require a gentle rinse with a garden hose and mild detergent once or twice a year to remove spring pollen, dust, and spiderwebs. Glass panels clean easily with regular non-abrasive window spray. Screen panels can be sprayed down gently with water—avoid high-pressure power washers, which can pop screen spline out of its channel. Checking exterior caulk joints and door weatherstripping once a year helps maintain a solid seal over the life of the room.

Will we need permits and HOA clearance in Fairfax County?

Yes. Any structural addition, roof tie-in, or deck modification in Fairfax County requires official building permits and code review. We handle all documentation for you. Our team drafts scale plans, submits structural framing details to the county building department, and coordinates with your neighborhood HOA board to obtain necessary design approvals before any construction starts. This ensures your project complies fully with set-back lines, safety codes, and home insurance requirements.

Can you use a three-season or four-season room in July and January?

Four-season rooms are designed for 365-day use. By installing insulated wall knee-walls, insulated ceiling panels, Low-E glass, and a dedicated heating/cooling source—like a ductless mini-split heat pump—the room stays comfortable whether it is 95 degrees outside or 20 degrees. Three-season rooms, by contrast, rely on single-pane glass or removable vinyl sash panels without heavy thermal insulation. They are fantastic for spring, summer, and fall, but will get cold during late December and January unless you use a temporary space heater.

Can you enclose the deck I already have?

Sometimes, yes—but it depends on how your deck was originally engineered. An open deck is built to carry human foot traffic and light patio furniture. Once you add framed walls, glass windows, roof beams, and snow loads, the structural weight increases significantly. During our initial visit, we inspect the existing post sizes, ledger board attachments, joist spans, and concrete footings. If the existing frame is sound, we can often reinforce the posts and ledger to support the room. If footings are undersized or the wood shows rot, building new footings or a fresh structural base is the safer choice.

Working Across Fairfax

Dominion Custom Decks serves homeowners across Fairfax County and neighboring Northern Virginia communities. Call us today at 571-201-1149 or email bill@dominioncustomdecks.com to schedule your on-site consultation.