Renovation Contractor in Oshawa & Durham Region
Insurance Restoration
Insurance adjusters often miss the hidden costs of restoration. We specialise in identifying those gaps, negotiating your claim, and rebuilding your property to its true pre-loss condition.
Why insurance company calculations often fall short of the real cost for quality home restoration.
Your Right to Full Restoration
You are not obligated to accept the first offer. As a homeowner, you have the right to repairs that restore your home to its pre-loss condition while meeting all current building codes.
Insurance adjusters often use standard pricing lists that don't account for real material and labor costs in your region.
Initial inspections rarely uncover structural damage beneath finishes, mold, or electrical issues that develop after the incident.
Estimates often overlook modern building codes that are mandatory for restoration work and protect your property's integrity.
Cornerstone Construction stands on your side, ensuring accuracy in every line item of your estimate:
Need a professional damage assessment? Contact us for a consultation.
The Cornerstone Method
A clear four-step process designed to restore your property and peace of mind with zero friction.
We start with a comprehensive review of your existing insurance claim to identify missed opportunities and ensure your policy is working for you.
Our team performs a thorough physical inspection, documenting every detail of the damage with precision to provide clear evidence for your carrier.
We handle the technical work, submitting detailed supplements to your insurance company to cover the true cost of professional restoration.
Once the claim is funded, our team executes the rebuild using premium materials, returning your property to pre-loss condition — or better.
Common Questions
You have rights under your policy. Here are the answers most homeowners need before they call us.
The claim review is free. We discuss our consulting fee structure during the initial review so there are no surprises.
No. A properly documented supplement actually speeds up resolution by giving the insurer everything they need to approve the full scope upfront.
Yes. It is never too late to request a supplement. Insurance claims can be reopened when new information or missed items are identified.
Yes. We communicate professionally with your adjuster, provide full documentation, and cite applicable codes and policy language throughout the process.
Water damage, pipe bursts, flood restoration, fire and smoke damage, and any residential or commercial property insurance claim in Ontario.
It depends on your loss, but the gaps can be significant. On a recent Durham Region water loss, our independent scope review documented roughly $60,000 in legitimate, code-required items the original estimate missed — moving the all-in recovery from about $73,000 to $133,000. Every dollar was tied to a code section, an IICRC standard, or the policy's own settlement language. A free review tells you exactly what's been missed on yours.
Your Claim Review is always free. If you'd like formal documentation to back up your claim, these are the optional services we can prepare for you — credited back if you hire us for the restoration.
Independent claim-support services, so you know your scope is complete before you sign off on your insurer's offer.
Starting at $750
A quick written review of your loss, usually one to two pages. We check the scope and flag anything that looks missed. A fast, low-cost first step for smaller claims.
Starting at $1,500 — refundable
A complete, detailed written report on your loss — the same careful review we build for major claims. If you hire Cornerstone for the restoration, the fee is credited back.
Starting at $2,500 — refundable
Our most complete package: the full report plus a priced estimate, matched line by line to your insurer's scope. Built for a formal claim review (Statutory Condition 11). Credited back if you hire us for the rebuild.
Free
A no-cost call where we walk through your loss together before anything else begins. The simplest way to start.
Our Approach
We do not just rebuild your property. We make sure your insurance company pays what your policy actually covers.
We conduct a detailed audit of your property and your insurance estimate to identify every item the adjuster missed or undervalued.
We cite the 2024 Ontario Building Code and ESA Rule 2-022 to force the insurer to pay for mandatory electrical and structural upgrades they excluded.
We refuse to close in walls until we have written clearance for moisture and mould. Your family's health comes before the timeline.
We fight for matching flooring, trim, and finishes throughout your home so your property value is fully restored — not patched together.
Real Results
Our independent scope review increased the all-in recovery from an initial $73,000 insurer estimate to $133,000 — that's roughly $60,000 in legitimate, code-required scope the original estimate missed. Every dollar itemized and tied to a code section, IICRC standard, or the policy's own settlement language. Nothing padded.
Who This Is For
Whether you are a homeowner, property manager, or landlord — we advocate for the full restoration your policy covers.
Your home was damaged and you feel like the insurance company is not paying enough. We audit your claim and fight for the full restoration you deserve under your policy.
Managing a property with an active insurance claim? We ensure the restoration meets code, matches existing finishes, and protects your asset value.
A damaged rental property needs to be fully and properly restored. We make sure the insurance company pays for a complete job — not a shortcut.
Currently am undergoing an insurance claim to get home restoration completed and reached out to Mike at Cornerstone Construction to assess and provide a complete proposal for the scope of work. Mike has been fantastic to work and communicate with. He is extremely detailed and meticulous. Proposal provided in-depth itemized line items for every restoration task. Everything was black and white with no room for confusion. Mike also has been instrumental in helping negotiate with the insurance company. He knows all the construction codes and laws in detail and was able to assess my insurance policy too and suggest justifiable factual counter arguments for the insurance company negotiation. Highly recommend to consult Mike at Cornerstone Construction before taking a final decision on a home restoration/renovation project.
Your Rights Under Your Policy
Your policy covers a full and fair restoration. Get a free claim review from Cornerstone and find out exactly what your insurance company missed.
Durham Region's trusted renovation contractor. Led by Mike Brock since 2017. We Listen, We Build, We Deliver.