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    • Home
    • About Us
    • Residential
      • Full Home Renovations
      • Bathroom Renovations
      • Kitchen Renovations
      • Basement Renovations
      • Home Additions
      • Exterior Renovations
      • Condo Renovations
    • Decks
      • New Deck Construction
      • Deck Repair Services
    • Accessible & Senior
      • Accessible Bathrooms
      • Home Modifications
      • In-Law Suite Renovations
      • Accessible Grants
      • Community Involvement
    • Commercial
      • Commercial Construction
      • Commercial Renovations
      • Commercial Bathrooms
    • Contact Us

289-423-4990

Complete Works Construction

Signed in as:

filler@godaddy.com

  • Home
  • About Us
  • Residential
    • Full Home Renovations
    • Bathroom Renovations
    • Kitchen Renovations
    • Basement Renovations
    • Home Additions
    • Exterior Renovations
    • Condo Renovations
  • Decks
    • New Deck Construction
    • Deck Repair Services
  • Accessible & Senior
    • Accessible Bathrooms
    • Home Modifications
    • In-Law Suite Renovations
    • Accessible Grants
    • Community Involvement
  • Commercial
    • Commercial Construction
    • Commercial Renovations
    • Commercial Bathrooms
  • Contact Us

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Expert Home Addition Builders in Pickering and Durham Region, ON
Custom Home Addition Builders In Pickering

Home Addition Contractors In Pickering & Durham Region, ON

At Complete Works Construction, with over 20 years of experience, we offer high quality construction services for home additions in Pickering and Durham Region that expand our clients living space.


Expand Your Home, Increase Its Value, Or Generate Income with our Trusted Home Addition Contractors.

contact us today - free consultation & estimate

Get Started Today On Your Home Addition Project In Durham Region

Types of home additions we build:

Main Floor & Second Floor Bump Out Additions:

Adding a home addition to your property in Pickering and Durham Region is a great way to add living space to your home. Whether you need an extra bedroom, a larger kitchen, a home office, or a cozy family room, a well thought out home addition by our contractors increases both comfort and functionality. 


  • Add a Front, Side or Rear Home Extension
  • Kitchen Additions & Main Floor Expansions
  • Garage Additions
  • Second-Floor Additions & Second-Floor Construction

Rental Unit Construction & Renovations in Durham Region

Building a home addition to use as a rental unit in Durham Region can add value to your home and generate income. At Complete Works, our home addition contractors also renovate existing spaces to create rental apartments on your property.

Multigenerational Living (In-Law Suites & Additional Dwelling Units)

Our Home Addition Contractors in Pickering can help design Home Additions or Accessory Dwelling Units in Durham Region to create multigenerational living spaces for family members or aging parents. You can also renovate an existing space, such as your basement, for accommodating loved ones or for creating a rental space.

Lifestyle Upgrades: Sunroom & Accessory Rooms in Durham Region

Enhance your lifestyle with a custom home addition in Durham Region. Whether you're envisioning a sunroom, hobby room, home office, entertainment area, or personal gym, we can bring your ideas to life.

Garage Construction in Durham Region

Adding a garage onto your home will increase your homes property and resale value in Durham Region. Our home addition contractors can build attached and detached garages on your property. We help with the permit process and work with engineers to ensure a seamless experience for your clients.  

our professional Home addition services:

Building Home Additions In Oshawa, Whitby, Ajax, & Pickering

  • Full Interior and Exterior Finishing
  • Expert Demolition and Installation
  • Excellent Waterproofing and Insulation
  • Subfloors, Flooring and Tiling Options
  • Framing and Wall Construction
  • Painting and Drywall Services
  • Kitchens and Kitchenette Construction & Finishing
  • Doors and Windows
  • Full Bathroom Construction & Finishing
  • Quality Fixtures and Furnishings
  • In-Law Suite, Apartment, Garage, and Rental Unit Construction

Affordable Home Addition Builders in Whitby and Durham Region, Ontario

our home addition services in Durham Region include:

Trusted and Experienced Home Addition Contractors

  • Free Consultations, Drawings, and Estimates
  • Design Consultation & Designated Project Manager
  • Permit Application Assistance
  • Renovation Monitoring and Communication
  • Proof of Liability and Insurances
  • Trusted Home Addition Contractors and Professional Installers
  • Excellent Industry and Extended Warranties
  • Cleaning Services Upon Renovation Completion
  • Options for Financing

home extension contractors in Pickering and Durham Region, ON
Voted best general contractors in Pickering, ON, 2025
Winners of the readers choice award in Pickering Ontario for best home renovators 2025
Voted best home addition builder in Pickering, ON in 2025
  • Voted best general contractors in Pickering, ON, 2025
  • Winners of the readers choice award in Pickering Ontario for best home renovators 2025
  • Voted best home addition builder in Pickering, ON in 2025
  • Voted best general contractors in Pickering, ON, 2025
  • Winners of the readers choice award in Pickering Ontario for best home renovators 2025

Building dream homes: our home addition construction process

Consultation & Estimate, Budget & Planning

Consultation & Estimate, Budget & Planning

Consultation & Estimate, Budget & Planning

Start your project with a free, no-obligation consultation to understand your vision, goals, and receive a free estimate for your home addition project.  

Custom Drawings and Floor Plans

Consultation & Estimate, Budget & Planning

Consultation & Estimate, Budget & Planning

 Once we understand your goals and budget, our design and engineering team helps bring your vision to life. Work without designers to develop your floor plan and layout before permit submission.

Permit Applications & Drawings

Consultation & Estimate, Budget & Planning

Permit Applications & Drawings

 Our team has 20 years of permit application experience. We handle and facilitate all necessary drawings and permits so that you don't have to.

Material Selection & Ordering

Material Selection & Ordering

Permit Applications & Drawings

 With your layout finalized, once your selections are confirmed, our office team handles all ordering and scheduling to keep your project on track, with trusted suppliers serving Pickering, Whitby, Oshawa, and the greater Durham Region. 

Construction & Framing

Material Selection & Ordering

Interior & Exterior Finishing

 From foundation work to walls and roof framing, every step is completed with quality and precision to ensure a seamless connection with your existing home. We ensure everything is built to meet Building Code standards. 

Interior & Exterior Finishing

Material Selection & Ordering

Interior & Exterior Finishing

 On the exterior, we match your home’s existing style. Inside, we complete everything; flooring, trim, paint, fixtures and any cabinetry are installed with precision and care. The end result is a seamless extension of your home that looks and feels like it was always meant to be there. 

home addition pricing in durham region:

Fair, Transparent And Trusted Pricing

At our core, we believe in fairness and transparency. 


As a trusted Home Addition Company in Durham Region we offer fair and affordable prices because we understand the importance of providing value without compromising quality. 


By keeping home addition construction costs low, you can free up financial resources to invest in other areas of your life. Lower home addition and home extension remodeling expenses allow you to enhance your home's aesthetics without breaking the bank.

Expert home addition contractors in Oshawa and Durham Region, ON

We hope that you will consider Complete Works Construction for your Home Addition project.

Ask Us About Permit Application Assistance.

contact us TodaySchedule an appointment

service areas

We build Home Additions in the Durham Region and the surrounding area, including:

  • Pickering
  • Ajax
  • Whitby
  • Oshawa
  • Courtice
  • Bowmanville
  • Uxbridge
  • Stouffville
  • Port Perry


If you don't see your area listed, feel free to contact us. We may offer Home Addition Construction in your area too!

Pickering, ON, Canada

289-423-4990

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Home Addition Contractors in Durham Region Blog

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Complete Works Construction

Pickering, Ontario L1V 1K4, Canada

289-423-4990

frequently asked home addition construction Questions

Please reach us at info@completeworksconstruction.com if you cannot find an answer to your question.

The most affordable ways to add an additon to your home include coverting or renovating an existing basement or garage or coverting an existing room into two. These options allow you to use space that you already have more efficiently.


To add an addition onto your home or onto your property in Ontario you will need a permit and drawings. We assist in this process and work with engineers and architects. We usually meet with you first to discuss a layout and create a budget for your project. This involves creating a scope of work, an estimate, and a design consultation.


Adding an addition onto your home can cost between $200 to $600 a square foot depending on size, location, how many bathrooms, and rooms you are looking to have. We sit down with clients to determine their need for space and create a plan within their budget.  


In Ontario, you need permission and need to apply for a building permit to add on to your home. This usually involves an application to the city that you live in and must include drawings that have been signed by an engineer or architect. We work with these local professionals and help our clients through the permit proccess.


A secondary dwelling is another name for a rental unit. There are currently funding programs and initiatives offered by the government for these types of renovations. Feel free to ask us for more information.


There are currently government programs available for low interest loans and some grants to build what the govenment refers to as secondary suites and accessory dwellings. Eligible constructions can borrow up to $80,000 at very low interest. Please contact our office for more information!


It all depends on your local zoning rules, how much space you have, and what type of dwelling you are trying to construct. You will need engineered drawings, an approved permit, and a scope of work and estimate from a contractor.


A sunroom when enclosed is often considered a home addition in Durham Region. It can be an open addition onto your home without doors or it can be a private enclosure with doors and act as a separate space in your home yet be accessible from the inside. 


Yes, you can add an addition onto your home to use as a rental unit. Your Home Addition can include a separate entrance for this purpose. Ask our Home Addition contractors about the new funding initiative offered by the government for building ADU's, which includes home additions.


Our Aging in Place contractors specialize in renovating and constructing aging in place, accessible and multigenerational living spaces for family. These spaces provide family with the benefits of living at home at a young age or aging in place at home during retirement.


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Complete Works Construction

Pickering, Ontario L1V 1K4, Canada

289-423-4990


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