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This score is based on publicly available data.

How is this calculated?
Score updated: Oct 2026

About Nelnor Construction

AI-generated summary from ProScore data sources

Nelnor Construction is a general contractor operating out of Markham, Ontario, available weekdays.

  • Nelnor Construction: one of 45 general contractors in Markham.
Rated on 1 independent platformProScore found ratings for this business on 1 independent review platform. Each one is listed in "Ratings Across Platforms" below.

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What Customers Say

AI analysis of 1 Google review

Top Strengths

Prompt and efficient service delivery
Professional technicians who explain processes clearly
Affordable pricing with strong value proposition
professional techniciansaffordable pricingcustomer serviceair duct cleaningprompt service

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

1 source · 4 reviews
GoogleListing found
Google Business Profile reviews
5.0/5
4 reviews

Not found on 3 other platforms ProScore checks (Review platform B, BBB, Review platform C).

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

How sources are weighted: ProScore methodology.

Google Review Breakdown

4 total
5
4
4
0
3
0
2
0
1
0

Featured Review

From Google

“

I recently used the Nelnor Construction for the first time and was blown away by the results. The technicians were prompt, friendly, and professional. They took the time to explain the process to me and made sure I was comfortable throughout. The air in my home feels much cleaner and fresher and I can tell that my air ducts are functioning more efficiently. I appreciated the affordable pricing and the excellent customer service provided by the company. I would highly recommend this service to an

B
BERNARD KAULA MULWA
Google Review

Frequently Asked Questions

Is Nelnor Construction licensed?
Licensing status has not been verified for Nelnor Construction. Contact them directly to confirm current credentials before hiring.
Does Nelnor Construction have insurance?
WSIB insurance status is not verified for Nelnor Construction. Request proof of workplace insurance and liability coverage before hiring.
What is Nelnor Construction’s rating?
Nelnor Construction has a ProScore Trust Score of 66/100 (Good), calculated from 1 data source including 4 Google reviews.
Where is Nelnor Construction located?
Nelnor Construction is a general contractor serving Markham, Ontario. You can reach them at +1 905-471-8542. View their full profile on ProScore for reviews and credentials.

Business Details

155 Anderson Ave, Markham, ON L6E 1A4
General Contractor

Hours

Monday8a.m.-5p.m.
Tuesday8a.m.-5p.m.
Wednesday8a.m.-5p.m.
Thursday8a.m.-5p.m.
Friday8a.m.-5p.m.
SaturdayClosed
SundayClosed

Services Offered

Home renovationsAdditionsNew constructionProject managementPermit acquisitionDesign-build

Services & Info

Accessibility

Wheelchair-accessible parking lot

Credentials

Insurance
Not Confirmed
WSIB Coverage
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

Data Transparency

Sources
Google
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 Markham

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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.