Renovation Contractor in Oshawa & Durham Region
Realtor Partner Program
A contractor partner who gets your listings sell-ready fast, protects your seller's price, and protects your name on every job you send our way.
Free · 30 minutes · before you list, or before your buyer offers
Every client you refer gets $500 off their project — a welcome gift from Cornerstone that makes you the agent who delivered real value.
The more clients you refer, the higher your position on our schedule. Your clients always move to the front of the line.
We assess any property within 48 hours so your clients can make firm offers and waive conditions with confidence.
After every renovation we hand you a digital pack with specs, warranties, and paint codes — ready to upload directly to MLS.
Why a Contractor Partner Matters Now
When buyers have their pick, they don't overlook a tired kitchen, a dated bathroom, or a basement full of question marks. The home that shows move-in ready holds its price. The one that doesn't gets talked down — or falls apart at inspection. A contractor partner is how you get a listing sell-ready before it goes live, and how you answer "what could this become" before a buyer walks away. In a slow market, that's the difference between a price cut and a clean close.
Why It's Safe to Refer Us
Every time you hand a client your contractor's name, your reputation rides on his work. Show up to a late, sloppy, or unlicensed job and it isn't his name that takes the hit at your next listing appointment. It's yours.
Cornerstone is built so that doesn't happen to you. Licensed and insured, with every job backed in writing — locked price, on-time accountability, a 5-year workmanship warranty. And the $500 goes straight to your client, never to you. No referral fee changes hands, so there's nothing to disclose and no conflict to manage — the clean kind of referral RECO and TRESA are built around. You refer us because we make you look good, not because you're paid to.
Free · 30 minutes · before you list, or before your buyer offers
Exclusive flat-rate services for Realtor Partners
A professional painter for a flat daily rate. High-impact touch-ups, trim, and feature walls done in one day to get your listing camera-ready.
A dedicated crew for punch-list items — hanging fixtures, minor repairs, hardware updates, and last-minute fixes before photos or open house.
We run our commercial HEPA air scrubbers through the home before your first open house. Fresh, dust-free, and move-in ready.
Floors are in every listing photo and every showing. We pull worn or stained carpet and dated flooring and lay fresh — so the floor reads new instead of dating the whole room.
The Flat-Market Income Play
In a flat market, the home that hands a buyer a way to offset the mortgage is the home that sells. A legal basement suite — finished, or ready to be — turns a hesitant buyer into a confident one. But only the legal version does that. An illegal suite does the opposite: it voids insurance, kills financing, and surfaces at the worst possible moment — the inspection you're trying to get through.
A legal second suite built to 2024 Ontario Building Code — permitted, inspected, and registered before anyone moves in. We hand you and your buyer the full documentation: building permit, ESA Certificate of Acceptance, and municipal registration. An insurable, rentable suite that adds documented value on title.
Your mortgage partner takes that documentation and shows your buyer how the suite's rental income factors into qualifying. The financing math stays with the licensed specialist who does it for a living. You bring both to the table — the buyer gets the full picture, and you get the close.
We build and prove the suite; your mortgage partner runs the numbers. Two specialists, one closed deal, your name on a home that actually delivered. See exactly how we build to code — town-by-town rules, OBC minimums, and the full permit process — on our legal second suites page.
Free · 30 minutes · before your buyer writes the offer — ceiling height, separate entrance, Durham zoning
Partner Tiers
Our Realtor Partner Program rewards loyalty with faster turnaround times and exclusive benefits for your Durham Region and GTA clients.
You are an active referral partner. Your clients receive priority scheduling ahead of non-partner referrals.
You refer consistently. Your clients move higher in our schedule and get faster site assessments and project starts.
You are one of our top referring realtors. Your clients go to the front of the line — every time, no exceptions.
Why Realtors Choose Cornerstone
We partner with Durham Region's top realtors to provide seamless renovation solutions that close deals and delight homeowners.
Your client's budget is locked from day one. No surprise invoices. No mid-project changes without written approval.
If we miss the agreed completion date, we pay your client $300 for every day we are late. Contractual accountability no other contractor offers.
You and your client log into one portal for live schedules, daily photos, and progress — the same commercial project systems we run on every job. You always know exactly where things stand.
Every job carries a 5-year workmanship warranty in writing. When you refer Cornerstone, you refer a contractor who is still accountable long after the final walkthrough.
Verified Google Reviews
"I had a great experience meeting Mike. He did an amazing job on my kitchen renovation from start to finish. I couldn't be more pleased with the workmanship from his company."
"Working with Mike and his team was great! Very professional and they know what they are doing. I would recommend them and I will for sure work with them again!"
"Cornerstone Construction is the very best — professional and experienced. I wanted someone I could trust, and they definitely delivered. I am very happy with the beautiful results."
Partner Program FAQ
Common questions from our Durham Region and GTA realtor partners about our renovation and referral process.
Ready to Partner
Start with a free 30-minute walkthrough — before you list, or before your buyer offers. No cost, no obligation, just a straight read on what's possible. Pick a time that works for you.
"When you refer a client to me, you're putting your name on the line — so I treat it like it's my own. On time, on budget, and you're kept in the loop the whole way, so you look good for making the intro."
— Mike Brock, Founder, Cornerstone Construction
Durham Region's trusted renovation contractor. Led by Mike Brock since 2017. We Listen, We Build, We Deliver.