Home Additions in St. Catharines & Niagara
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Top Quality Home Additions in St. Catharines and Niagara Installed by Professionals
Room Additions and Second-Storey Additions
Need more space without moving? From single-room additions to full second-storey builds, we create space that looks and feels like it’s always been part of your home.
Primary Suite and Ensuite Expansions
Upgrade comfort and convenience with expanded bedrooms and ensuite bathrooms designed to match your lifestyle.
Kitchen and Dining Extensions
Open up the heart of your home with more room for family meals, entertaining, and day-to-day living
Sunrooms and Four-Season Rooms
Bring the outdoors in with bright sunrooms or insulated four-season rooms you can enjoy year-round.
Garage Conversions and Mudrooms
Transform underused garage space or add a practical mudroom to keep the rest of your home organized and clean.
Home Additions That Look Like They’ve Always Belonged
At RGS Carpentry, we design and build additions with clean lines, solid structure, and finishes that blend seamlessly with your existing home. From siding and trim to roofing and windows, every detail ties in smoothly.
Ready to get more space in your home?
Give Rene a call today for a free quote!
We Specialize In Doing Home Additions Right!
With over 30 years in Niagara, steady referrals, and a proven process, we handle drawings, permits, structure, framing, and finishes with care. Our coordinated trades and reliable timelines keep your project on track, while our respectful crew keeps the site tidy from start to finish.
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Frequently Asked Questions
Smaller additions typically run 6–10 weeks once permits are approved. Larger or second-storey projects take longer. We provide phased pricing up front so you know exactly what to expect, with clear budgets and change-order control.
Usually not for main-floor additions. We plan the work zone to keep daily life running smoothly.
We source siding, brick, trim, and roofing to blend new construction with the existing home.