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Find general contractors in Ottawa, Ontario

HomeStars connects you with general contractors in Ottawa, Ontario easily and stress-free. No more cold-calling or endless web searches: just post your project on HomeStars and get matched only with available pros. Read real customer reviews, discuss your specific needs, and compare multiple quotes, all in one convenient place.

Some of our top rated general contractors in Ottawa

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Top rated general contractors

Our general contractors in Ottawa, are rated 4.9 out of 5 based on 84 reviews from homeowners like you.

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What services are offered by Ottawa general contractors?

Home renovation and construction projects in Ottawa often involve coordinating multiple trades, permits, and inspections. General contractors help manage this process by organizing work schedules, sourcing materials, and ensuring projects follow the Ontario Building Code and the City of Ottawa’s building and renovating regulations across neighbourhoods ranging from The Glebe and Alta Vista to growing communities like Kanata and Barrhaven.

Here are some general contractor services that are commonly requested in Ottawa:

  • Home additions and layout reconfigurations: Expanding kitchens, adding extra storeys, or opening interior layouts is common in neighbourhoods where homeowners upgrade existing properties rather than relocate.

  • Basement finishing and secondary dwelling units: Many Ottawa homeowners convert basements into rental suites, home offices, or recreation areas, subject to local zoning and permit requirements.

  • Custom home construction and rebuilds: In areas such as Westboro or parts of Old Ottawa South, older houses are sometimes replaced with newly built homes that better suit modern layouts and energy efficiency standards.

  • Energy efficiency upgrades and exterior improvements: Window replacements, insulation upgrades, siding, roofing, and drainage improvements are frequent projects due to Ottawa’s cold winters and seasonal temperature changes.

HomeStars matches you with general contractors near you who are available to take on your project. To get started, it’s easy: just post your project on HomeStars and local Ottawa general contractors will register their interest.

If your project focuses on one room of the house, you can also find Ottawa-based kitchen renovation companies and specialists in bathroom renovations on the platform as well.

What makes hiring a general contractor in Ottawa, Ontario unique?

Hiring a general contractor in Ottawa comes with city-specific considerations that are not always relevant elsewhere. The city’s mix of historic and suburban neighbourhoods and its location at the crossing of two waterways make for unique planning and processes in construction and renovation projects.

Here are some factors that general contractors in Ottawa need to consider:

  • Historic and heritage homes: Many older neighbourhoods (e.g., Sandy Hill, the Glebe, Old Ottawa South) have century‑old homes requiring careful planning for renovations, including heritage approvals for exterior work.
  • Waterways and flood‑prone areas: Proximity to the Rideau Canal, Ottawa River, and other local waterways can affect grading, drainage, and foundation design.
  • Soil and winter conditions: Ottawa’s clay‑heavy soils and freeze‑thaw cycles impact foundations, concrete work, and exterior installations.

Find a general contractor in in Ottawa with HomeStars

With HomeStars, you can skip the cold-calling and hours of research by using our one-stop-shop platform. You’ll be able to find available, verified professionals who have reviews to back up their work. Here’s how to find and hire Ottawa general contractors on HomeStars:

  1. Start by posting your project on HomeStars. Provide a clear description of your general contractor project and, if possible, include photos to get precise quotes.
  2. Receive interest from available pros, review work history, and read customer feedback for general contractors in Ottawa.
  3. Connect with general contractor professionals in Ottawa to discuss your project, request and compare quotes, and ask any questions.
  4. Hire the right pro to get the job done and leave a review based on your experience. Our review system ensures that pros are rewarded for good work and held accountable for any problems.

All Ottawa pros, including general contractors, who register with our platform undergo verification, including checks of ID and company details, so you can hire with confidence.

Extra peace of mind with the HomeStars Confidence Program

The HomeStars Confidence Program is designed to give you added confidence when hiring through our platform. If your job qualifies under the Program and we determine that a claim meets the Program requirements, HomeStars may cover what you owe the Pro on an eligible job with a quote of up to CAD $10,000, in line with our terms and conditions.

What is the average cost of hiring a general contractor in Ottawa, Ontario?

Costs for general contractors in Ottawa can include a variety of factors, including labour, materials, permits, and equipment. Hourly rates generally fall between 60 and $145 and depend on the contractor’s experience, service type, and the complexity of the project.

Below are some typical costs for common Ottawa general contractor projects:

  • Home additions and layout reconfigurations: $210 to $320 per sq. ft., influenced by structural changes, foundation adjustments, and finish selections.
  • Basement renovations and secondary dwelling units: $50,000 to $100,000+, based on layout, plumbing, electrical work, and whether a kitchen or bathroom is included.
  • Custom home construction and rebuilds: *$275 to $425 per sq. ft., shaped by design details, lot conditions, and materials.
  • Energy efficiency upgrades and exterior improvements: $15,000 to $65,000+, depending on scope, materials, and structural requirements for windows, siding, roofing, or drainage improvements. This can include home energy audit costs to guide choices.

HomeStars Tip: We always recommend having an open discussion with your Ottawa general contractor about specific services included and pricing and that everything be detailed in a written quote. This supports clear communication and helps avoid misunderstandings.

What to ask an Ottawa, Ontario general contractor before hiring?

When deciding whether to hire a general contractor in Ottawa, asking a few questions can help you decide whether they’re the right fit for your project.

What types of projects do you usually handle?

A general contractor in Ottawa should be able to outline the types of projects they specialize in, such as home renovations, new builds, or commercial construction.

Have you completed projects in my neighbourhood or with similar home types?

Knowledge of Ottawa’s neighbourhoods and property types can help contractors plan for local challenges, such as century‑old homes in Westboro or Sandy Hill, compact lots in urban infill areas, or multi-unit townhomes and condos. Many contractors share their past projects on their HomeStars profiles.

Are you insured in Ontario and covered by WSIB?

Contractors working in Ottawa should carry liability insurance and maintain Workplace Safety and Insurance Board coverage to protect homeowners and workers.

Will you handle City of Ottawa permits and inspections?

Many renovations and additions require permits. Confirm who is responsible for applications and booking inspections.

Who will manage the project on-site, and how will communication work?

A building contractor generally assigns a dedicated foreperson or project manager to coordinate all aspects of the work, including supervising subcontractors and scheduling inspections. Clarify who will coordinate trades, schedule inspections, and provide updates so you know how information will be shared.

What warranties apply to workmanship and materials?

Understanding warranty terms and the process for resolving deficiencies protects your investment after completion.

FAQ: Common questions about general contractor services in Ottawa, Ontario

When should I hire a general contractor?

Hiring an Ottawa general contractor early in the planning phase is ideal, especially for large renovations or construction projects. They can help with budgeting, timelines, permits, and coordination from the start. HomeStars helps speed up the process of finding a general contractor, helping you get a head start on your project.

Do general contractors offer design advice or planning support?

Many Ottawa general contractors provide guidance on layouts, space planning, and material choices. They can help translate your ideas into workable plans, coordinate with trades, and suggest solutions that meet municipal code requirements.

How might living near Ottawa’s waterways affect my general contracting needs?

Homes near the Ottawa River or Rideau Canal may require extra attention to drainage, flood prevention, and soil stability. Contractors can plan foundation work, grading, and landscaping to minimize water-related issues and ensure long-term performance.

How can I find help in selecting energy-efficient materials that are suitable for my Ottawa home?

Ottawa contractors can recommend insulation, windows, HVAC systems, and other energy-saving upgrades suited to local climate conditions. A pre-renovation home inspection can identify areas that would benefit most from improvements, and you can easily find home inspectors on HomeStars to guide these recommendations.

Do general contractors in Ottawa handle cleanup after the project?

Most residential general contractors in Ottawa include site cleanup as part of their service, removing debris and ensuring work areas are safe once the project is complete. Always confirm with your contractor what level of cleanup is included.

When is the busiest construction season in Ottawa?

Construction in Ottawa is busiest from late spring to early fall, when weather conditions are most favourable for exterior work. Scheduling trades and municipal inspections can take longer during these months, so using HomeStars to connect with local contractors helps secure availability and plan your project ahead of peak season.

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