General Contractor Professional

Core Builders

London, ON

WSIBHCRA Licensed

+1 519-433-0293 Website

2 Credentials Verified

78out of 100

Trusted

ProScore

This score reflects 7 Google reviews, ratings from 2 platforms in all, WSIB coverage confirmed.

How is this calculated?

Score updated: Oct 2026

About Core Builders

AI-generated summary from ProScore data sources

Core Builders is a general contractor based in London, Ontario, offering wheelchair-accessible parking at the job site.

Core Builders: ProScore 78, tied 18th of 61 scored general contractors in London.

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What Customers Say

AI analysis of 2 Google reviews

Top Strengths

Exceptional project management with ability to handle scope changes gracefully and maintain budget estimates throughout

Outstanding cleanliness and respect for clients' homes, with clean job sites maintained daily

Excellent communication and transparency - clients never left guessing about project status and next steps

project managementbudget controlcommunicationclean job siteadditions

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

2 sources · 16 reviews

GoogleListing found

Google Business Profile reviews

5.0/5

7 reviews

Review platform CListing found

Independent review platform · name withheld by policy

5.0/5

9 reviews

Not found on 2 other platforms ProScore checks (Review platform B, BBB).

ProScore aggregates Google, the BBB and other major review platforms. Some sources are not named publicly.

How sources are weighted: ProScore methodology.

Things to Know

Trusted Level

Scores in ProScore’s Trusted tier — strong, consistent signals across the sources ProScore checks.

Rated on Multiple Platforms

Independently rated on 2 review platforms — ratings that agree across sources are harder to game.

WSIB Verified

Workplace Safety and Insurance Board coverage confirmed — you're protected.

HCRA Licensed

Licensed by the Home Construction Regulatory Authority — confirmed against the register.

Google Review Breakdown

7 total

Featured Review

From Google

“

Gulian was so great to work with that we miss having him around now that our project is complete. Core Builders respected our home and left a clean job site at the end of each day. Gulian is so even keeled. We were never made to feel that any of our new ideas, added scope or change in direction were ever a problem. Gulian offered suggestions on where to spend and where to save for best value. He was excellent at communicating where we were at and what was next. We were never left guessing. I ha

Jodi Austin

Google Review

Photos & Work

1 photo

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Frequently Asked Questions

Is Core Builders licensed?

Yes, Core Builders is registered with HCRA (Home Construction Regulatory Authority), verified by ProScore.

Does Core Builders have insurance?

Yes, Core Builders has verified WSIB (Workplace Safety and Insurance Board) coverage, which protects homeowners from liability if a worker is injured on the job.

What is Core Builders’s rating?

Core Builders has a ProScore Trust Score of 78/100 (Trusted), calculated from 2 data sources including 7 Google reviews.

Where is Core Builders located?

Core Builders is a general contractor serving London, Ontario. You can reach them at +1 519-433-0293. View their full profile on ProScore for reviews and credentials.

Business Details

10 Rosel Crescent, London, ON N6C 2L2

General Contractor

View on Google Maps

Services Offered

Home renovationsAdditionsNew constructionProject managementPermit acquisitionDesign-build

Services & Info

Accessibility

Wheelchair-accessible parking lot

Credentials

HCRA Licensed Builder

HCRA Licensed Builder (B33230)

✓ Confirmed

Insurance

Not Confirmed

Credentials are as reported by contractors and public sources — verify each with the contractor and the issuing authority before hiring.Check it yourself: WSIB clearance · HCRA Ontario Builder Directory

Homeowner Guides

How much does this service cost in Ontario?Red flags when hiring General Contractor FAQs in London View all guides →

Data Transparency

Sources: Google, major review platforms, and Ontario regulatory records
Score computed: October 13, 2026

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Checked by ProScore

What is the ProScore?

One score from 0 to 100 across every review platform and public registry ProScore checks. How the ProScore works

≥81

Elite

≥70

Trusted

≥54

Good

≥30

Basic

<30

Caution

—

Not yet rated

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Compare General Contractors in London

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A ProScore is informational only — not a guarantee, endorsement, or recommendation — and the data behind it may be incomplete or out of date. Before hiring, independently verify all credentials, including licences, insurance (including WSIB) and references, directly with the contractor and the issuing authority. Full data notice. Something wrong? Let us know.