AWARD-WINNING DESIGN-BUILD • CUSTOM SUNROOM CONTRACTORS

Premier Sunroom Contractors,
Expertly Designed
& Built to Last

Serving homeowners across Chester County, Delaware County, Montgomery County, Bucks County, New Castle County DE, and Cecil County MD — bringing craftsmanship, transparency, and enduring quality to every custom sunroom installation.

★ 4.8 Stars – Google Reviews     ■ Fully Licensed & Insured (PA, DE & MD)
■ Committed to Client Timelines     ■ Proactive & Clear Communication
■ Transparency in Every Quote     ■ A History of Exceptional Results

AWARD-WINNING DESIGN-BUILD • CUSTOM SUNROOM CONTRACTORS

Premier Sunroom Contractors,
Expertly Designed
& Built to Last

Serving homeowners across Chester County, Delaware County, Montgomery County, Bucks County, New Castle County DE, and Cecil County MD — bringing craftsmanship, transparency, and enduring quality to every custom sunroom installation.

★ 4.8 Stars – Google Reviews     ■ Fully Licensed & Insured (PA, DE & MD)
■ Committed to Client Timelines     ■ Proactive & Clear Communication
■ Transparency in Every Quote     ■ A History of Exceptional Results

AWARD-WINNING DESIGN-BUILD • CUSTOM SUNROOM CONTRACTORS

Premier Sunroom Contractors,
Expertly Designed
& Built to Last

Serving homeowners across Chester County, Delaware County, Montgomery County, Bucks County, New Castle County DE, and Cecil County MD — bringing craftsmanship, transparency, and enduring quality to every custom sunroom installation.

★ 4.8 Stars – Google Reviews
■ Fully Licensed & Insured (PA, DE & MD)
■ Committed to Client Timelines
■ Proactive & Clear Communication
■ Transparency in Every Quote
■ A History of Exceptional Results

25+

YEARS OF EXPERIENCE

1,500+

Satisfied Homeowners

3,000+

Projects Completed

WE UNDERSTAND THE CHALLENGE

A Custom Sunroom Should Be an Investment You’re Proud Of.

You’ve put thought into this. You know what you want your sunroom to feel like — the size, the light, how your family will use it year-round. The frustration comes when finding a sunroom contractor worthy of that vision proves harder than it should be.

Vague Estimates, Surprise Costs

Sunroom construction projects are notorious for ballooning budgets. A broad initial quote rarely survives contact with engineering requirements, permit fees, and material selections. At FSBD, every proposal is detailed, fixed-price, and crafted specifically for your home — no allowances, no vague line items.

Structural Shortcuts You Can’t See

Improper foundation footings, undersized roof framing, inadequate waterproofing at the home tie-in — the structural decisions in sunroom construction are invisible once complete. We engineer every sunroom installation to code and beyond, because shortcuts don’t show up until you’re dealing with a leak or a sagging roofline.

Year-Round Comfort Requires the Right Design

A sunroom that bakes in July or freezes in January isn’t delivering what you paid for. We design every custom sunroom with proper insulation, HVAC integration, and high-performance glazing, so the space is genuinely usable in every season, not just spring and fall.

HIGHLY RATED & TRUSTED

Our Clients Trust Us and You Can Too

4.8
200+ Google Reviews
Award-Winning Service Licensed & Insured Design-Build Firm

"We had First State tear down our existing sunroom and build us a new one early this fall along with removing our old paver patio and putting down a sleek concrete pad. We are glad that we went with FSBD, and the room is gorgeous -- much better than we had ever hoped for when we started this project. We had a few hiccups along the way, like anyone could expect with a construction project, but our Project Manager Michael was absolutely wonderful. "

Jessica W. · Dec 2024 · Google Review

"First State Building and Design was recommended to us by two neighbors who were very happy with their work. My husband and I had our old deck torn down, and a new, bigger deck put up in its place as well as 14 large floor to ceiling windows in our sunroom and in the basement area below the sunroom. The team of workers, led by Bryan LaCarte, was respectful of us and our property, and we are very happy with the finished product. The workers who installed the new deck were efficient, polite, and meticulous, and there was absolutely no trash of any kind after they left each day. They were prompt and courteous. "

Diana S. · April 2026 · Google Review

"From the first interface with their sales rep thru the installers, I couldn't be more pleased with the experience. The sales rep visited our house and offered pertinent suggestions and showed us exactly how the canopy cover had to be installed. The project manager was responsive and offered communications as needed throughout the scheduling process. Finally, the installers were very considerate of our property and did an admirable job. All involved were conscious of good customer relations and always responded to my questions...especially working under our HOA rules."

Denny H. · December 2025 · Google Review

OUR PROCESS

Dream. Design. Build.

A process refined over 25+ years to turn your sunroom vision into a precisely built reality, with complete transparency and clear communication at every step.

Dream
DREAM

We Begin by Listening

We meet at your home to discuss your goals, aesthetic vision, and investment range. We evaluate your existing home, understanding zoning, setbacks, structural conditions, and how the sunroom will connect to your living space, and build a comprehensive plan before any design or engineering work begins. No pressure, no obligation.

Dream
DESIGN

Your Vision Comes to Life

Our design team creates high-definition 3D renderings, allowing you to walk through your new sunroom before we break ground. We finalize glazing selections, insulation specifications, HVAC integration, and township permits — and provide a fixed-cost investment plan with no allowances, no vague line items, no surprises.

Build
BUILD

Construction Executed with Precision

Our skilled crews bring the design to life, managed by a dedicated project manager who ensures schedules, quality control, and job site cleanliness throughout. We prioritize proactive communication at every milestone and don’t consider the project complete until the final walk-through meets your full satisfaction.

OUR WORK

Custom Sunroom Projects

Every project begins with your vision. These are a few of the custom sunrooms we’ve designed and built for homeowners across Delaware County, Chester County, and the surrounding region.

CUSTOM SUNROOM – MEDIA, PA | DELAWARE COUNTY

CUSTOM SUNROOM – KENNETT SQUARE, PA | CHESTER COUNTY

CUSTOM SUNROOM – MALVERN, PA  | CHESTER COUNTY

CUSTOM SUNROOM – GLEN MILLS, PA | DELAWARE COUNTY

Why First State Building & Design

Built on Accountability.
Proven by Every Project.

Licensed & Insured in Pennsylvania and Delaware

We carry full licensing and insurance in every state where we operate — protecting you, your home, and our crew on every project.

Design-Build Under One Roof

We handle design and construction in-house, one team, one point of contact, one contract. No handoffs between a separate architect and an unknown builder. For sunroom construction, that integration matters more than ever: your sunroom’s design must account for your home’s existing structure, roofline, and mechanical systems from day one.

Serving the Region Since 2006

We’ve built a reputation across Delaware County, Chester County, Montgomery County, Bucks County, New Castle County DE, and Cecil County MD — one project at a time.

A Select Number of Projects Each Year

We take on a carefully limited number of projects to ensure every client receives our complete attention — from the first consultation through the final walk-through.

Ready to Get Started?

Your Free Design Consultation
Starts Here

Fill out the form below and a member of our team will reach out within 1 business day to schedule your complimentary in-home design consultation.

Common Questions

Answers Before You Ask

Is the design consultation really free and no-obligation?

Yes — completely free. We visit your home, learn about your project vision, assess the outdoor space, and share our perspective. There’s no cost and no obligation to move forward. We believe a great relationship starts with a conversation, not a contract.

What happens after I fill out the form?

A member of our team will reach out within 1 business day to introduce ourselves and schedule your in-home consultation. During that visit, we’ll walk the space with you, discuss your vision, and answer any questions. You’ll receive a detailed custom proposal shortly after.

Do you handle both the design and the construction?

Yes — that’s what sets the design-build model apart. We handle everything in-house: design, permitting, and construction. You have a single point of contact and a single contract. There’s no gap between what the designer envisioned and what the builder delivers.

What areas do you serve?

We serve homeowners throughout Delaware County PA, Chester County PA, Montgomery County PA, Bucks County PA, New Castle County DE, and Cecil County MD. If you’re unsure whether we serve your area, reach out — we’re happy to confirm.

COMPLIMENTARY · NO OBLIGATION

Your Custom Sunroom Is Waiting.

Let’s Design It Together.

Schedule your free sunroom design consultation, no pressure, no obligation.

First State Building & Design · 258 Wilmington Pike, Chadds Ford, PA 19317

Serving Delaware County · Chester County · Montgomery County · Bucks County · New Castle County DE · Cecil County MD

© 2026 First State Building & Design. All rights reserved.