Twenty-two years
of craft. Two divisions.
One trusted team.
From kitchen-to-basement renovations to decks, fencing and landscaping — Jesse Mackowycz and the JMack crew deliver clear quotes, clean jobsites, and work you can feel proud of.
One general contractor for the whole home — inside and out.
JMack Builds Inc. is a general contractor serving Toronto, Mississauga, Etobicoke, Oakville and the wider GTA since 2003. For more than two decades, homeowners have trusted Jesse Mackowycz and his crew with the rooms they live in most — kitchens, bathrooms, basements and full-home remodels.
In 2026 we opened JMack Exteriors, our outdoor division, so the same team can now build your deck, fence, interlock and landscaping to the same standard. One company, one point of contact, one crew that stands behind its work — whether the project is a gut renovation or a brand-new backyard.
Every job runs through Jesse personally and comes with a fixed written quote and a two-year workmanship warranty. No vague estimates, no disappearing acts, no surprises on the final bill.
Which side of the home are we building?
Division 01 — Renovations
JMack Builds
Kitchens, bathrooms, basements, and full interior remodels — the work Jesse's been trusted with in GTA homes for two decades.
Explore Renovations
Division 02 · New for 2026
JMack Exteriors
Decks, fencing, interlock, retaining walls, and landscape design — the same standard, now in your backyard.
Explore ExteriorsEverything your home needs, from one crew
Two divisions under one roof means you don't have to juggle separate contractors for the inside and outside of your home. Here's the full range.
Interior renovations
Design coordination, permits, demo, framing, plumbing, electrical and finishes — managed end to end.
- Kitchen renovations
- Bathroom renovations
- Basement finishing
- Powder rooms
- Full-home remodels & additions
Outdoor construction
The same project management and the same crew, now building the outside of your home.
See exterior servicesThe reasons the referrals keep coming
A simple path from idea to finished space
In-home consultation
We visit your home, listen to what you're after, and talk through what's realistic for your space, budget and timing.
Written quote
You get a clear, fixed quote with the scope spelled out — so you know exactly what's included before anything begins.
We build
Our crew handles permits, trades and scheduling, keeps the site clean, and keeps you updated as the work moves along.
Walk-through
We finish, walk the space with you, sort any final details, and back it with a two-year workmanship warranty.
Jesse is extremely knowledgeable, reliable, professional and delivers top quality work. He's honest and works with us to custom a plan that meets our timing, budget and project needs.
The crew showed up when they said they would, kept everything clean, and the final result was exactly what we were quoted. We've already booked them for the backyard.
Proudly serving Toronto & the Greater Toronto Area
Based in the GTA and building across the region since 2003. If you don't see your neighbourhood, ask — we likely cover it.
The GTA Home Project Planning Guide
Before you spend a dollar, know what you're getting into. Our free guide walks you through planning a renovation or outdoor project in the GTA — the questions to ask, the budget ranges to expect, and the mistakes that quietly blow up timelines and costs.
- ✓ Realistic budget ranges for kitchens, baths, basements, decks & fences
- ✓ The 8 questions to ask any contractor before you sign
- ✓ A room-by-room planning checklist you can print
- ✓ The 5 most expensive mistakes — and how to avoid them
🔒 One email, then the guide lands in your inbox. No spam, unsubscribe anytime.
Frequently asked questions
Straight answers to what homeowners ask us most. Still wondering something? Just ask.
Ready to start your project?
Tell us what you're planning — inside or out — and we'll set up an in-home consultation and a clear written quote.