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Top-Rated Addition to existing structure builders in Fairfax - Updated Nov 2026

Avatar for Munoz Construction LLC
Munoz Construction LLC
5.0(
240
)
Addition to Existing Structure - Build

Serving Fairfax, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"Munoz Construction LLC is by and far the BEST experience my family and I have ever had with any business in 35 years. Jose Munoz and his full team, each with individualized skill sets, offer talented, brilliant repairs, renovations and additions. Excellent, perfectionist work in a world that increasingly does things “half way”. They are reasonably priced and most importantly friendly and completely trustworthy. They felt more like family than strangers working on our home for a month. Our work project included extensive renovations inside and outside 2 houses (5 rooms of windows, tile work, complete painting of interior and exterior with wood rot repair, crown moulding installation, relocating ceiling fixtures, new gutters and collapsed ceiling room redos from leaking roof). They are creative and can offer solutions no one else can envision. Absolutely the highest recommendation"
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+13

1 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Thomas Custom Builders Inc
Thomas Custom Builders Inc
4.8(
98
)
Addition to Existing Structure - Build

Serving Fairfax, VA and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"From initial design meeting to project completion Thomas Custom Builders kept promises, delivered outstanding work on time and on budget and exceeded our expectations in every way. Their on site team did everything they could to keep the work place clean and tidy so as disrupt our home life as little as possible. Team leadership kept us informed and made sure our questions were answered promptly. They are excellent tradesmen with exceptional skills. I’d give them 10 stars if I could."
Rec Room Reno | Clifton VA
Custom Kitchen & Addition | Fairfax VA
Kitchen, Bathroom & Addition | Arlington VA
Rec Room Reno | Clifton VA
Custom Kitchen & Addition | Fairfax VA

+188

Response time2 days
31 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for DreamMaker Bath & Kitchen
DreamMaker Bath & Kitchen
4.9(
32
)
Addition to Existing Structure - Build

Serving Fairfax, VA and surrounding areas

Approved

In business since 1983

Warranties offered

Credit card accepted

"We loved working with DreamMaker. We had a pretty clear idea of what we wanted our kitchen and dining area to look like, but were unsure if it was going to be possible and what materials should be used. Mr. Everett listened closely to what we wanted and delivered in every aspect. He was able to rearrange our kitchen so that the flow is much better and provide us with custom built-in shelves and bench. He not only pointed us in the right direction for the big things like counter-tops, but also for the backsplash, drawer pulls, and lighting fixtures. All our work was done efficiently and Mr. Everett's team went above and beyond whenever an unexpected problem occurred. I am confident that all the work was done thoroughly and that I will not have any problems in the foreseeable future. The same team arrived promptly at my house every day and worked diligently so that the job was done in the time frame originally quoted to us, despite some additional plumbing work that was necessary. Because the same workers were in my house everyday, I felt comfortable coming and going and knew that my house was in good hands. If I ever had a question or concern about anything, I would text Mr. Everett and he would always get back to me very quickly, even on the weekends or at night. He was also very quick to come to the house if anything was ever needed. I have not experienced such great customer service with any other company. The materials used for our new kitchen are beautiful, and I feel that we had everything done for a very fair price. I would highly recommend DreamMaker Bath & Kitchen because of their ethics in every regard. Their goal is to make your remodeling job as easy for you as possible while providing you with a quality product that you will love."
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After

+18

Response time2 days
Response rate100%
2 neighbors recently requested a quote
Avatar for ICM Remodeling / ICM Building & Remodeling, LLC
ICM Remodeling / ICM Building & Remodeling, LLC
4.8(
22
)
Addition to Existing Structure - Build

Serving Fairfax, VA and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"Israel and his team are incredibly professional and kind. They performed an outstanding job and went above and beyond to make sure we were happy. His attention to detail is so appreciated and he is very knowledgeable on the latest products and what to go with. I have recommended to my neighbor and anyone else in need of remodeling!"
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+4

Response time2 days
Response rate100%
3 neighbors recently requested a quote
Capstone Remodeling
5.0(
57
)
Addition to Existing Structure - Build

Serving Fairfax, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"I would recommend Capstone Remodeling to anyone who will listen (I already have two friends planning on reaching out). Stephen, Jaime, Nelson, Geraldo, and Juan Carlos all did amazing work and I plan on hiring them for any future work I have done on my home. Stephen was very responsive and communicative throughout the whole process. The first thing I noticed was that Stephen discussed my options with me and made sure the solution he was providing was what I needed. I've dealt with other contractors who talk over me or try to convince me they know best, but not Stephen. He was also very mindful of time and budgeting concerns as some less than pleasant surprises were discovered under my existing floor. Stephen, Jaime, and Nelson had their work cut out for them and had to rip out the existing flooring structure on about 350 sq ft of my house, which had not been built correctly when it was originally added. That room used to be a safety issue (the floor was falling apart) and now it's my favorite part of the house. They also extended the new flooring throughout the main level of my house. Geraldo did a beautiful job of repairing drywall, patching, and painting the addition. He is so meticulous and skilled that I don't think I can ever be satisfied to paint a wall on my own anymore. Juan Carlos laid new tile for my fireplace hearth and has made it such a wonderful feature of the house. I know this is a long review but I really can't say enough good things about Capstone Remodeling and everyone who worked on my house. I am so used to having to be on top of things and figure things out on my own but Capstone Remodeling was dedicated to making sure everything was taken care of and done well. They are the best!"
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+474

Response time1 day
Response rate100%
Recommended by100%of homeowners
Avatar for MARVEL HOMES LLC
MARVEL HOMES LLC
4.9(
43
)
Addition to Existing Structure - Build

Serving Fairfax, VA and surrounding areas

Approved

In business since 2002

Warranties offered

Customers say: True professional

"Very through work proposal and estimate. They did everything outlined in the proposal at a price that was very competitive with other bids. They are the most customer-oriented vendor that we have ever worked with."
Before 2
After 2
Exterior
Exterior
Exterior

+8

1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Total Renovating
Total Renovating
5.0(
40
)
Addition to Existing Structure - Build

Serving Fairfax, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"Awesome experience with Total Renovations, LLC. Knowledgeable, responsive, considerate, patient, went above and beyond, informative, a true professional and fair. These are all qualities that were consistently adhered to when working with Russell and his team at Total Renovations, LLC. Having never gone through a home renovation process, we were a little bit skeptical as to which company we wanted to hire to undertake the task of transforming a two-story living room area in our home into a space which converted the upper portion into an additional bedroom. After an extensive search, we found Total Renovations , LLC and its owner, Russell. From day one, which was actually a few months before we hired him and his team, Russell was extremely pleasant to work with. I called and informed him of the task we were wanting to have completed, as well as the fact that we were new to this experience. He was very patient in explaining the entire process from start to finish. Once we had a signed contract between ourselves and Total Renovations, LLC, Russell took it from there. Whether it was obtaining architectural drawing designs, permits from the county, or the construction and clean up of the project, Russell and his team took care of every step along the way. Unlike some other companies that may be dismissive of your project if they feel that it won’t make them enough money, or are dismissive of your task altogether, Russell and his team were a complete joy and relief to work with. They are very punctual, as they show up on time, every time. And I mean EVERY TIME. Additionally, his crew made sure to do an excellent job cleaning up after each day of work. This was truly appreciated as we have a young child and a dog living in the house as it was being remodeled. In this market and with inflation being what it is, we all know that some companies may try to stiff their customers by engaging in price gouging here and there. That was not at all the case with Total Renovations, LLC. The price that they quoted us and signed for was what was adhered to. If anything came up in the project where a particular aspect needed to be changed or corrected based off of the initial assessment, Russell always made sure to reach out to us immediately to explain the reason as to why, as well as obtain permission to proceed. That particular point was extremely reassuring, whereas some other companies may just add extra work to your project without notifying you and then hit you with an inflated bill at the end. At no point in time did Russell ever try to oversell me on any aspect of the project, nor did he brush aside any issue that other companies may feel to be trivial. If we had a question or a concern, Russell had an answer or a solution. Russell and his team were able to take a vision that we had in our heads for our open space, and literally turn it into a reality. Additionally, we were able to add in some recessed lighting and ceiling fans along the way. The attention to detail that his crew invested into our project was above and beyond even our own expectations. It truly feels like we are living in a new house. If you have a task or project that you’re thinking about having done with your home, we HIGHLY recommend that you chose to hire Russell and his team with Total Renovations, LLC. We guarantee that you will not be disappointed. We also guarantee that you will love the end result."
Budget Basement under $50k
Master Bathroom Renovation - Great Falls, Va
DJA-1 Basement Rough-in’s
DJA2 Basement Renovating
Rough in for Budget Basement Finishing

+1003

2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for WaterStone Kitchen and Bath
WaterStone Kitchen and Bath
4.9(
46
)
Addition to Existing Structure - Build

Serving Fairfax, VA and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"From our first visit to the Waterstone office to the final walkthrough when the project was completed, our experience with Waterstone was fantastic. Jeff Thompson and Deanna Llewellyn designed the new kitchen, taking our input and making a plan that was better than we hoped. The entire renovation process was done professionally, with respect to the fact that we were living in the house at the time. Javier led the crew, and every day the site was cleaned up and Javier took the time to explain the work they'd done that day and what they would do next. The project came in at budget, it was done on time, and the work was top notch. We're very happy with the outcome, and in fact, we've talked to Jeff about the master bath. I give this group my highest recommendation."
McMillan Bathroom
Spriggs Kitchen
Brandenstein Bathroom
Reston Bathroom 1
Reston Bathroom 2

+12

Response time8 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Manex Remodeling
Manex Remodeling
5.0(
28
)
Addition to Existing Structure - Build

Serving Fairfax, VA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"I am thrilled with the complete master bath remodel and kitchen that Tony & his incredible crew from Manex recently completed in my home. It was a great experience from start to finish. This company truly works as a team, communication channels are all open. Even when a hiccup occurred…they addressed it immediately & moved forward. The crew was professional & positive…really a pleasure to have them in my home. Tony went above & beyond in every aspect including making sure I was not simply satisfied with the work but truly happy. I also want to thank his crew member Jimmy . He did an exceptional job & really kept the work site clean every day. I will absolutely use Manex remodeling again for future projects."
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+6

2 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for Before & After Home Improvement Co
Before & After Home Improvement Co
4.9(
31
)
Addition to Existing Structure - Build

Serving Fairfax, VA and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"Five years ago Rick and his team had completed a full rehab of our deck and we love it. Recently, a material defect occurred and Rick stood by his work when the manufacturer would not. At his expense, he got new material and provided the same great carpenters, (Skip, Gary, and Heracio) as last time and made things right. I highly recommend their work and am happy to share their name with everyone who enjoys our deck. Check out the photos.Thank you again."
Deck - Retaining Walls - Arches
Trex Rain Escape Under Deck With Fans
Deck - Stairs Patio Firepit walls
Small Deck & Patio
Circle In Patio

+144

Response time8 hrs
1 neighbors recently requested a quote
Recommended by80%of homeowners
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FAQs for addition to existing structure building service projects in Fairfax, VA

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Fairfax, VA homeowners’ guide to addition to existing structure building services

From average costs to expert advice, get all the answers you need to get your job done.