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.

Wooden deck with black and white fence surrounding a pool.
Wooden deck with a hot tub, surrounded by trees and a built-in bench.

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.

Hot Tub Enclosures
Wooden gazebo with screened walls and a shingled roof, surrounded by flowers and greenery.

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.

Gazebos
Two-story deck with stairs, latticework, and satellite dish attached to the side of a beige house.

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.

Privacy Screens
Back of a two-story white house with a raised wooden deck. The deck has black railings and stairs.
Lit deck with railing and post lights at dusk. Trees and a house are in the background.
A wooden deck with stairs attached to a two-story home, hot tub on the patio.

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.

Green and white

 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.

Green and white

Free Estimates, Zero Pressure

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

Badge with green and white text:

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


Green Trex logo with the registered trademark symbol.
Logo for "Upside Under Deck Ceiling" by Color Guard. Blue and gray text with a blue upward arrow and water drops.
Fiberon logo: Black text with a red dot above the "i", red "on" with the tagline "The Decking Solutions Company".
TimberTech Composite logo by Azek.
Decorators logo with red "K" and slogan "Go Beyond Ordinary".
Newly built wooden deck with stairs in backyard, near a house on a sunny day.

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.

Contact Us