"Loved working with Mark and his guys! Love our new sunroom even more! Mark was open and honest from the very first call, never salesy. He was a great resource in helping us finalize the design."
Eric Schuster
Verified Google Review
Harford County, Maryland
Sunroom Builders in Fallston, MD
Three-season, four-season, and screen rooms designed, permitted, and built by our own crews. Authorized Sunspace dealer. MHIC #91686.
4.9 stars on Google•101 Google reviews•MHIC #91686
Local Sunroom Builders
Sunrooms built for Fallston homes
Fallston is home. Our shop is at 2817 Belair Rd, so Fallston homeowners work with a sunroom builder who is literally down the road. Homes around Carrs Mill Park, the Fallston Recreation Complex, and the surrounding neighborhoods get the shortest drive time we have, which makes site visits, permit runs, and any follow-up after the build easy. We design and build three-season rooms, insulated four-season rooms, screen rooms, and porch enclosures here with our own crews.
Planning a sunroom in Fallston
Fallston properties tend to have room to work with, which gives more freedom on sunroom size and placement. Many projects start from an existing deck or patio off the back of the house, and we evaluate that structure before designing anything on top of it. We look at the roofline and how the new roof will tie in, the drainage around the room, and the electrical needed for lighting, fans, and a dedicated heating and cooling system. Because we are so close, we can also show Fallston homeowners finished rooms and materials without much effort on either side.
Investment Guide
Sunroom options and typical prices
| Option | What it is | Typical price |
|---|---|---|
| Sunspace Model 100 screen room | An aluminum screen room for bug-free open air, upgradeable to windows later. | $12,000 to $35,000 |
| Sunspace Model 200 WeatherMaster | Our most popular three-season room, with vinyl windows that open up to 75 percent. | $38,000 to $80,000 |
| Sunspace Model 300 glass sunroom | A bright glass three-season room with double roller windows that vent from both sides. | $42,000 to $85,000 |
| Sunspace Model 400 insulated sunroom | A fully insulated four-season room with Low-E argon glass for year-round use. | $75,000 to $120,000 |
| Walls-under porch enclosure | Windows and walls added under the roof of a porch or covered deck you already have. | $22,000 to $68,000 |
| Patio cover | A solid insulated, clear acrylic, or hybrid roof over an existing deck or patio. | $10,000 to $40,000 |
Integrated railings add $2,500 to $5,000. Your final number comes in a written, to-the-penny proposal after the site visit. See the full sunroom cost guide
Permits and Inspections
Harford County sunroom permits
Every Harford County sunroom we build is permitted and inspected. We prepare the plans, submit them to the county, schedule the inspections, and close the permit out at final. If your property sits in a Critical Area near the water or in a neighborhood with HOA review, we handle that as part of design so it does not surprise you later.
One company, start to finish
It helps to know who does what. A sunroom dealer sells the enclosure. A sunroom installer assembles it. We are the contractor, which means we are responsible for the footing, the structure, the roof tie-in, the permits, the electrical, and the enclosure itself.
Our own crews build the whole room, so one company answers for every part of it, from the first conversation to the final inspection.
How It Works
Three steps to a firm price
- 1
A free phone conversation
Tell us about your house and how you want to use the room. You get a price bracket on the first call, so you know where the project lands before anyone visits.
- 2
A one-hour site visit
We look at what the room will sit on and how it ties into your house, and we bring samples and colors so you can see the options in person.
- 3
A to-the-penny written proposal
You get a written proposal with the final number, to the penny, so there are no surprises when the work starts.
What Homeowners Say
Sunroom reviews from Maryland homeowners
"We started with a wooden deck and screened enclosure that was rarely used and ended up with a beautiful composite deck and sunroom that we enjoy daily. We greatly appreciate the skilled craftsmen."
Deborah Thomas
Verified Google Review
"Mark was fantastic to work with from start to finish. He's incredibly knowledgeable and took the time to explain everything clearly. The entire experience was smooth, professional, and exceeded our expectations."
Brandon Herd
Verified Google Review
Questions
Sunroom questions from Fallston homeowners
Where is your shop in Fallston?
Our shop is at 2817 Belair Rd, Fallston, MD 21047. Fallston is our home base, and we build sunrooms throughout the community and the rest of Harford County.
How much does a sunroom cost in Fallston?
Most sunroom additions we build cost about $38,000 to $120,000 depending on the model and size. A screen room runs about $12,000 to $35,000, and enclosing an existing porch runs about $22,000 to $68,000. You get a price bracket on the first phone call and a final written number after the site visit.
Do you handle the Harford County permit?
Yes. Every sunroom we build is permitted and inspected. We prepare the plans, submit them, meet the inspector, and handle HOA or architectural review where it applies.
Which sunroom is most popular?
The Sunspace Model 200 WeatherMaster. Its vinyl windows open up to 75 percent for the breeze and close tight against weather and bugs, which makes it a comfortable three-season room. For year-round use, the insulated Model 400 is the four-season option.
Do sunrooms connect to my home's heating and cooling?
No. We give sunrooms their own heating and cooling, such as a ductless mini-split, rather than tying into your home's system, and we coordinate the electrical it needs.
Learning Center
Sunroom guides
Sunrooms
How Much Does a Sunroom Cost in Maryland? 2026 Prices by Type and Size
What a sunroom costs in Maryland in 2026, by type, Sunspace model, and size: three-season, four-season, screen rooms, porch enclosures, and patio covers.
Sunrooms
Four-Season Rooms in Maryland: Insulation, Heating, and What They Cost
What makes a sunroom a four-season room, how it is heated and cooled, and what it costs in Maryland compared with a three-season room.
Comparison Guides
Sunroom vs Three-Season Room vs Screen Room: Which Is Right for Your Maryland Home?
A clear comparison of sunrooms, three-season rooms, four-season rooms, and screen rooms: seasons of use, ventilation, heating and cooling, and price.
Sunrooms
The Sunroom Installation Process, Step by Step
What happens from the first phone call to the final walkthrough when a licensed Maryland contractor installs a sunroom, and what to expect at each stage.
Sunrooms
Sunroom Permits in Maryland: Harford, Baltimore, Cecil, Anne Arundel, and Howard County
What each county requires for a sunroom, how Critical Area and HOA review fit in, and what a licensed contractor handles for you.
Sunrooms
How to Spot Professional Sunroom Work
How to tell a professionally built sunroom from a shortcut job: the foundation, roof tie-in, flashing, permits, and the questions to ask before you sign.
Ready to Build?
Let's talk about your outdoor space.
Start with a free phone conversation. We'll learn about your project, answer your questions, and help you understand what's possible. No pressure and no pushy sales tactics.
4.9 stars on Google • 101 Google reviews • MHIC #91686 • Locally owned and operated