markham on construction office administrator Jobs – 12 Openings This Week

Office Manager – Residential Construction (5+ Years Required)
MGB BUILDING GROUP INC. —Toronto, ON
- $70,000–$80,000 a year
- Full-time
- Microsoft Excel
- Management
- Customer service
Quick apply
Office (Toronto) Health & Safety Manager
BLT Construction Services —Toronto, ON
- $65,000–$95,000 a year
- Full-time
- CPR Certification
- First Aid Certification
- Construction
- Wellness program
- Mileage reimbursement
Quick apply
Construction Office Administrator
Osmi Homes Inc. —Scarborough, ON
- $65,520 a year
- Full-time
- ERP systems
- English
- Microsoft Office
Quick apply
1d
Administrative Assistant
K-Line Group of Companies —Stouffville, ON
- $50,000–$60,000 a year
- Full-time
- Hybrid work
- Customer service
- Administrative experience
- High school diploma or GED
- Dental care
- Paid time off
Quick apply
Field Office Administrator
GHD —Markham, ON
- $80,990–$120,708 a year
- Overtime
- Microsoft Word
- Microsoft Excel
- Administrative experience
administrative assistant
R&B Vass Construction —North York, ON
- $26.50 an hour
- Part-time
- Customer service
- English
- High school diploma or GED
office manager
K. Reis Construction Inc. —York, ON
- $36 an hour
- Full-time
- Microsoft Powerpoint
- Microsoft Word
- Microsoft Excel
Office Administrator
Surrey Construction —Concord, ON
- Part-time
- Customer service
- English
- Microsoft Office
Part-time Office Administrator
Curbside Construction Ltd. —Maple, ON
- $20–$23 an hour
- Temporary
- No experience needed
- Microsoft Office
- Administrative experience
Quick apply
Office Manager for Construction Company
Home Painters Toronto —Toronto, ON
- $45,000–$60,000 a year
- Weekends as needed
- Computer skills
- Construction
- Leadership
Quick apply

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Office (Toronto) Health & Safety Manager
BLT Construction Services —Toronto, ON
Diploma, certificate or coursework in Occupational Health & Safety is an asset but not required with equivalent field experience. First Aid & CPR – Level C.
$65,000–$95,000 a year
Quick apply
Operations Manager - administrative services (Health & Safety Manager)
STRABAG Inc. —York, ON
Having a valid Driver's license with a driver's abstract check. Post-secondary school diploma or degree in Occupational Health and Safety or related field of…
$55.64 an hour
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Office Manager – Residential Construction (5+ Years Required)
MGB BUILDING GROUP INC. —Toronto, ON
Digital and physical filing systems — organized, consistent, and always current. Communication bridge between office staff, project teams, trades, and company…
$70,000–$80,000 a year
Quick apply
Office (Toronto) Health & Safety Manager
BLT Construction Services —Toronto, ON
Diploma, certificate or coursework in Occupational Health & Safety is an asset but not required with equivalent field experience. First Aid & CPR – Level C.
$65,000–$95,000 a year
Quick apply

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Office Manager – Residential Construction (5+ Years Required)

MGB BUILDING GROUP INC.
Toronto, ON

Quick apply

Job details

Full-time
$70,000–$80,000 a year

Qualifications

Microsoft Excel
Management
Customer service
Residential construction
Filing
English
Administrative experience
Construction administrative experience
Computer skills
Construction
Office management
Communication skills

Full job description

About this role

MGB Building Group builds and renovates high-end custom homes across Toronto and the GTA. We're looking for an Office Manager who has already run the office of a construction company — someone who understands how a busy residential construction operation works from the inside, knows how to keep multiple workflows moving at once, and can hold a team accountable to systems and deadlines without needing to be told twice.

This is a senior operational role that reports directly to leadership. You'll own the day-to-day functioning of our office: people, processes, tools, documentation, and cross-team communication. If you've managed a general office but never worked in construction, or if systems and process aren't your strong suit, this role is likely not the right fit.

Who this is for: An experienced office manager who has worked inside a residential or general construction company, built or maintained office systems and SOPs, managed team members, and can navigate the pace of a construction environment — where priorities shift and nothing waits.

What you'll own

Day-to-day office operations for a busy residential construction company — you are the person who keeps things running
Team oversight: delegate tasks, monitor progress, and ensure deadlines are met across departments
Workflow and process management: build, maintain, and improve SOPs, reporting structures, and administrative systems
Scheduling and calendar coordination across projects, teams, and leadership
Communication bridge between office staff, project teams, trades, and company leadership
Digital and physical filing systems — organized, consistent, and always current
Internal meeting facilitation and preparation of operational reports for senior management
Oversight of tools and platforms: ensure the team is using systems correctly and consistently
Resource allocation support across multiple active construction projects simultaneously

What we're looking for

5+ years of office management or construction administration experience — with at least a meaningful portion inside a residential construction company
Demonstrated people management experience: you've supervised team members, delegated effectively, and held others accountable
A genuinely process-driven mindset
Proven ability to manage multiple workflows and competing priorities simultaneously without losing organization
Strong proficiency with ClickUp, Dropbox, Excel, and GoHighLevel — these are used daily; experience with BuilderTrend is a plus
Excellent written and verbal communication in English — polished, clear, and professional at every level
Comfortable operating with autonomy in a fast-paced environment where you are expected to solve problems, not just flag them
Reliable transportation to commute to the Toronto office every day — required

Role details
Schedule: Mon–Fri, full-time
Location: In-office, Toronto ON
Type: Full-time, permanent
Compensation: Competitive, by experience

Why MGB

A senior role with real scope — you'll shape how the office operates, not just maintain it
Work alongside a focused, professional team on high-end residential projects
Stable company with a growing project pipeline and long-term growth potential

Apply now!

Job Type: Full-time

Pay: $70,000.00-$80,000.00 per year

Application question(s):

Have you ever worked for a Residential Construction company before?

Experience:

Construction administrative: 3 years (required)

Language:

English (required)

Work Location: In person

Quick apply

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construction office administrator jobs in markham on

Office Manager – Residential Construction (5+ Years Required)

Office (Toronto) Health & Safety Manager

Construction Office Administrator

Administrative Assistant

Field Office Administrator

administrative assistant

office manager

Office Administrator

Part-time Office Administrator

Office Manager for Construction Company

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