Your Dream Spaces Crafted with Precision
From Vision to Reality: Designed and Built Around You
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Cornerstone Decks and Additions is your trusted design-build contractor in Raleigh and the Triangle. We specialize in custom roofs, decks, additions, and screen rooms—designed around your goals and built to last. From the first sketch to the final screw, we deliver craftsmanship and clarity every step of the way.
Built Right. Priced Right.
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At Cornerstone Decks and Additions, we believe you don’t have to overspend to get high-quality craftsmanship. Whether your ideas are just taking shape or fully formed, we’ll work with you to create a custom space that fits your lifestyle and your budget. From first conversation to final build, we focus on what matters most to you—and deliver results you’ll love for years to come.
Custom Features. Unmatched Craftsmanship.
Custom Features. Unmatched Craftsmanship.
Picture bold stone columns, rich cedar ceilings, ambient lighting, or intricate deck patterns. Whether simple or fully custom, we build with detail, function, and style in mind. Our flexible pricing lets you choose the features that matter most—without compromise.
Cornerstone Decks and Additions -Roofing Specialists
Cornerstone Decks and Additions specializes in residential roofing, including shingle and metal roof installations, roof repairs, and gutter work. Whether you're dealing with wear and tear or planning a full upgrade, we're here to help with reliable solutions and honest guidance.
It starts with a quick phone call, followed by a free estimate. On-site consultations are the best way to answer all your questions—because we’ll have seen the roof or project area firsthand. And remember, all estimates are completely free.
Roofing and Exterior Services
- Shingle
- Metal
- Skylights
- Siding
- Gutters
- Repairs
- FREE ROOF INSPECTIONS
About Us
Design. Detail. Done Right—Since 1993.
Design. Detail. Done Right—Since 1993.
Design. Detail. Done Right—Since 1993.
For over 35 years, John Pilkington has brought thoughtful design and master craftsmanship to homes across Raleigh and the Triangle.
"To me, It’s never just a deck or an addition—it’s where life happens. That's why we build with care, listen closely, and aim to get it right the first time."
— John Pilkington, Founder
As the founder of Corne
For over 35 years, John Pilkington has brought thoughtful design and master craftsmanship to homes across Raleigh and the Triangle.
"To me, It’s never just a deck or an addition—it’s where life happens. That's why we build with care, listen closely, and aim to get it right the first time."
— John Pilkington, Founder
As the founder of Cornerstone Decks and Additions, his hands-on approach, eye for detail, and commitment are behind every project we take on.
From roofs and decks to additions and screen rooms, we manage each phase in-house—from first sketch to final finish. No shortcuts. No surprises. Just beautiful, enduring spaces built with care, character, and purpose.
Spaces That Feel Like Home—Outdoors
Design. Detail. Done Right—Since 1993.
Design. Detail. Done Right—Since 1993.
A well-designed outdoor space isn’t just an upgrade—it’s where memories are made. At Cornerstone Decks and Additions, we design and build custom decks, screen rooms, porches and pergolas that become part of your everyday life. Whether it's quiet mornings on the porch or summer evenings with friends, we create outdoor spaces that feel like home—crafted for comfort, connection, and lasting value.
One Team. Every Step. No Guesswork.
Design. Detail. Done Right—Since 1993.
One Team. Every Step. No Guesswork.
When you’re ready to create something lasting, you need more than a builder—you need a partner. At Cornerstone Decks and Additions, we take care of everything: design, permits, construction, and the finishing touches. Whether it’s a new deck, screen room, roof upgrade, or full addition, we bring your ideas to life with care, clarity, and
When you’re ready to create something lasting, you need more than a builder—you need a partner. At Cornerstone Decks and Additions, we take care of everything: design, permits, construction, and the finishing touches. Whether it’s a new deck, screen room, roof upgrade, or full addition, we bring your ideas to life with care, clarity, and craftsmanship. From the first conversation to the final walkthrough, we’re with you—every step of the way.
AWARD-WINNING EXCELLENCE
The Southern Ideal Home Show
In Recognition of Excellence
3rd Place
200 Square Foot Exhibit - 2000
2nd Place
200 Square Foot Exhibit - 2001
2nd Place
200 Square Foot Exhibit - 2002
ROOFING SPECIAL!
FREE INSPECTIONS
For a limited time, get 50% off skylight replacement when you upgrade your roof or book a repair.
Let in more light. Save big. (To exit offer, click "X" top right.)