SUN IN BUILDERS
Custom Decks Built to Last a Lifetime
For nearly 30 years, we've transformed Montgomery County backyards with premium decks and outdoor living spaces that exceed expectations.
Trex Pro Platinum Certified • No Subcontractors
Three Decades of Building Custom Decks That Last
Since 1996, Sun-In Builders Custom Decks has been the name homeowners trust when they want it done right the first time. As one of the nation's elite Trex Pro Platinum builders, we combine premium materials with old-school craftsmanship—no shortcuts, no subcontractors, no compromises.
Whether you're envisioning a simple deck refresh or a complete backyard transformation with multi-level designs, custom lighting, and built-in features, our team handles every phase in-house. From site prep and grading to the finishing touches that make your neighbors jealous, you get one experienced crew, one point of contact, and one guarantee: exceptional results.
We Handle Everything Your Outdoor Space Needs
A beautiful deck is just the beginning. We provide the complete foundation and finishing touches:
- Foundation prep, grading, and leveling
- Concrete pads and hot tub foundations
- Stone work and drainage solutions
- Custom lighting design and installation
Outdoor Living Spaces Built to Last
From custom decks and elegant gazebos to hot tub enclosures and privacy screens, we create outdoor spaces that enhance your home and fit your lifestyle. With 28+ years of experience, expert craftsmanship, and a no-subcontracting guarantee, every project is built to exceed your expectations.
Custom Deck Construction
Transform your backyard with a deck designed specifically for your home and lifestyle. From cozy landing pads to sprawling multi-level entertainment spaces, we craft custom solutions using premium materials like Trex composite, cedar, and exotic hardwoods.
Hot Tub Enclosures & Spa Decks
Enjoy your hot tub year-round with a beautifully integrated enclosure. We seamlessly blend your spa into your existing or new deck, adding privacy screens, weather protection, and safe access.
Gazebo Construction
Add timeless elegance to your backyard with a custom-built gazebo. Perfect for entertaining guests, creating a quiet retreat, or serving as a stunning focal point in your landscape.
Privacy Screens
Define your outdoor space with custom trellises and privacy screens. Add shade, create separation between areas, or provide a beautiful backdrop for climbing plants.
Deck Foundation and Site Work
Your deck's foundation determines everything—stability, drainage, longevity. We handle concrete footings, grading, hot tub pads, and proper site prep so your outdoor space stands strong for decades.
Low-Voltage Lighting Systems
Professional deck lighting turns your outdoor space into an evening retreat. We install energy-efficient LED systems—post caps, stair risers, under-rail, and in-deck lights that blend safety with atmosphere.

The Difference Is in the Details
WHY SUN-IN BUILDERS
When you're investing in an outdoor space for your family, you want it done right the first time. Here's what sets us apart:
No Subcontractors, Ever
Your project is handled entirely by our experienced team. No strangers showing up, no miscommunication, no surprises.
Trex Pro Platinum Certified
We're among the elite 1% of deck builders nationwide who've earned this distinction. It means premium training, premium materials, and premium results.
Complete Site-to-Finish Service
From grading and concrete pads to custom lighting and finishing touches, we handle everything under one roof. No coordinating multiple contractors or dealing with finger-pointing.

Love Your Deck or We Haven't Finished
100% satisfaction isn't just a promise—it's how we've stayed in business for nearly 30 years.

Free Estimates, Zero Pressure
We'll show you what's possible, what it costs, and give you space to decide. No pushy sales tactics.

Built on 28 Years of Getting It Right
When you've built thousands of decks across three states, you learn what works—and what doesn't.
Built by Craftsmen. Not Contractors.
Premium Materials That Perform
We exclusively work with industry-leading brands because your deck should look stunning on day one and year twenty.
- Trex, TimberTech & Fiberon Composite Decking - The beauty of wood without the maintenance headaches
- Endurance & Deckorators Railing Systems - Safety and style that complements your design
- Custom Low-Voltage Lighting - Extend your outdoor living into the evening






Four Simple Steps to Your Dream Deck
Step 1: The Free Consultation
We visit your home, explore your backyard, and listen to what you're dreaming up. Bring the Pinterest board, the napkin sketches, or just tell us "I want a place to actually use."
Step 2: The Custom Design
We send over a detailed plan and transparent pricing. No hidden fees, no "oops we forgot that" moments later. Just honest numbers for honest work.
Step 3: The Build
Our in-house team transforms your yard while you go about your life. We clean up daily, communicate constantly, and treat your property like it's our mom's house.
Step 4: The Reveal
Final walkthrough, your approval, and then it's all yours. Plus our number for life, because we stand behind what we build.
Let's Start Building Your Dream Deck
You've spent enough weekends scrolling through deck photos and enough summers wishing your backyard was more than just... there. It's time to make it happen.
For nearly 30 years, Sun-In Builders has been transforming ordinary backyards into extraordinary outdoor living spaces across Southeastern Pennsylvania. We've built thousands of decks, worked through every imaginable challenge, and perfected a process that makes the whole experience surprisingly enjoyable.
Our Core Service Areas Include:
- Pottstown
- Coopersburg
- Quakertown
- Pennsburg
- Lansdale
- Harleysville
- Montgomeryville
- Doylestown
- Collegeville
- Phoenixville
- Chester Springs
- West Chester
- Morgantown
- Gilbertsville
- Perkiomenville
- Downingtown
- Exton
- King of Prussia
- North Wales
- Warrington
- Souderton
- Pottsgrove
Ready to Transform Your Backyard?
Three decades of experience, thousands of satisfied homeowners, and a commitment to quality you can see in every detail. Let's talk about your vision.
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