Surgical Precision From Day Zero
Most contractors start with a sledgehammer. We start with a strategy. Before a single tool comes in, a protocol goes in. It stays until the last day.
A Managed Build From Day One to Handover
Your build deserves certainty — not chaos. We take the rigorous systems of commercial construction and apply them to your home. Every phase is planned, every trade is managed, and every detail is documented. No surprises. No excuses.
Your Build
Deserves Certainty
Not Chaos.
Our surgical standards ensure
from the first consult
to the final walkthrough.
Discovery & Diagnostic
PHASE 01
We sit down with you before a single number is discussed. We assess your space, understand how you live, and build a complete scope of work around your budget. Then we lock the price before we start.
Site Protection & Setup
PHASE 02
Before demo starts, our full site protection protocol goes in. Guardia Pro floor protection, polyethylene dust barriers, MERV 5 HVAC filter pads, SharkBite Max plumbing caps, and LOTO electrical lockout. Your home is protected from day one.
Managed Execution
PHASE 03
Every trade is vetted, scheduled, and managed by us. Real-time updates via your JobTread client portal every evening. Single point of contact throughout. Daily HEPA reset and site cleanup before we leave every day.
Formal Closeout & Handover
PHASE 04
Full punch list walkthrough with you before we call it done. You receive your Owner's Manual with all warranties, trade contacts, and maintenance notes. Then your 5-year written warranty starts.
You Are Never in the Dark
Our signature is on every joint. You have access to everything from the first day to the last.
Real-time updates via your JobTread client portal every evening
Direct line to Mike Brock — not a call centre
Open-wall inspections before drywall goes up
Response within 24 hours. Always.
"We are not the cheapest contractor in Oshawa, Whitby, or Ajax. We are the most disciplined. Cheap contractors cannot afford the HEPA scrubbers, the LOTO safety procedures, or the daily resets we mandate. We price our jobs to be done right — because the most expensive renovation is the one you have to do twice."
THE CORNERSTONE STANDARD
YOUR HOME IS PROTECTED FROM DAY ONE
Most contractors treat your home like a job site. We treat it like someone lives there — because someone does. Before demo starts, our full site protection protocol goes in. It stays until the last day.
FLOOR ARMOUR
Before a single tool comes in, your floors are protected.
- ✓Guardia Pro on all hardwood, tile, and stone surfaces
- ✓HEPA vacuumed before protection goes down
- ✓Self-adhesive, breathable, and waterproof
- ✓Floors continue to cure underneath
SEALED DUST CONTAINMENT
Your living space stays clean while we work.
- ✓Floor-to-ceiling polyethylene barriers at all transitions
- ✓Heavy-duty zipper doors for crew access
- ✓Tuck tape sealed at every seam
- ✓Smoke detector dust covers on every sensor
HVAC PROTECTION
Your ductwork stays clean from day one.
- ✓MERV 5 filter pads on every supply and return vent
- ✓Installed before demo starts
- ✓Keeps silica, gypsum, and drywall dust out of your ductwork
UTILITY SAFING-OFF
Every line secured before demo begins.
- ✓Water lines capped with SharkBite Max brass fittings
- ✓Electrical circuits locked out using LOTO procedures
- ✓Every line tagged and labelled
- ✓Water restored to the rest of the home same day
DAILY RESET
We take the last 30 minutes of every day to do the following:
- ✓All garbage removed to the bin
- ✓Tools, cords, and materials packed up and organised
- ✓Work zone HEPA vacuumed
- ✓Floor protection and barriers inspected and re-taped
- ✓Washroom cleaned twice a week
NEGATIVE PRESSURE ZONE
On heavy demo and drywall days we run active air management.
- ✓HEPA air scrubber running continuously
- ✓Negative pressure maintained — air pulled out faster than it comes in
- ✓Dust physically cannot travel to the rest of your home
- ✓The same standard used in commercial construction and remediation
This is not an add-on. It is standard on every Cornerstone project regardless of scope or budget.
OUR PROMISES TO YOU
The Certainty Stack
Cornerstone Construction Inc. sets the standard for accountability in GTA renovations.
If we miss our completion date due to our management, we pay you $300 per day. No excuses.
Stay informed 24/7. Our client portal provides real-time updates, daily logs, and photo progress so you never have to wonder about the status of your project.
Surprises are for birthdays, not construction. Once we sign a contract, your price is locked. We absorb any material cost fluctuations so your budget stays exactly where it started.
We stand behind our workmanship for five full years. If we built it, we own it.