How to Choose a General Contractor in Ottawa

Finding a great general contractor in Ottawa is one of the most important decisions you'll make for your renovation or construction project. The right GC keeps your project on budget, on schedule, and stress-free. The wrong one can cost you months of your life and thousands of dollars you weren't planning to spend. This guide covers exactly what to look for, what questions to ask, and how to make a confident decision before signing anything.

What Does a General Contractor Actually Do?

A general contractor (GC) manages the full construction process on your behalf. They coordinate all the tradespeople — framers, plumbers, electricians, drywall crews, tile setters, painters — often simultaneously, while sourcing materials, tracking deliveries, and managing the permit process. They don't necessarily swing a hammer on every task; their value is oversight, coordination, and accountability.

For a homeowner, this means you're not juggling seven different phone calls and trying to schedule inspections while also living your life. A good GC is the single point of contact for your entire project. A poor one is the reason renovation horror stories exist.

Ottawa General Contractors

Ottawa General Contractors (OGC) is Ottawa's most reviewed and award-winning design-build firm for residential construction. With over 200 verified reviews and a proven track record across kitchens, basement renovations, home additions, custom homes, and multiplex builds, OGC offers homeowners a fully integrated experience from design through construction and final delivery.

Services Offered

• Full home renovations (kitchens, bathrooms, basements)
• Home additions — second storeys, rear extensions, sunrooms
• Custom home builds and infill projects
• Duplex, triplex, and multiplex construction
• Coach homes, garden suites, and ADUs
• In-house design, 3D walkthroughs, and permit management

Location & Service Area

• Office: 1886 Merivale Road, Suite 200, Nepean, ON K2G 1E6
• Service Area: Ottawa and the National Capital Region

Contact Information

• Phone: (613) 225-9991
• Email: info@ottawageneralcontractors.com
• Website: ottawageneralcontractors.com

Recent Reviews

"OGC made our new house a better fit for us! From installing a new powder room to removal or reconfiguration of walls to removing old carpet and replacing it with beautiful herringbone vinyl flooring — this project was completed in time and within budget. The staff at OGC have all been very pleasant to deal with, kept their cool and problem-solved when needed. Our project manager kept things on track and was super helpful."

"We recently completed a major 3-storey addition to our home with Ottawa General Contractors, and we've been very pleased with the results. From the initial consultation to the final walkthrough, their professionalism and attention to detail were evident throughout the process."

Step 1: Define Your Project Scope Before You Call Anyone

The clearest way to get useful quotes is to know what you want before contacting contractors. You don't need architectural drawings yet — but you should know whether you're doing a kitchen renovation, a full home addition, a basement suite, or a structural change. Contractors who specialize in basements may not be the right fit for a complex home addition, and vice versa. Our guide on home renovation planning is a useful starting point for scoping your project.

Step 2: Check Credentials and Insurance

Ontario does not license general contractors the way some provinces do — there is no single GC licence required. That means the onus is on you to verify credentials. Key things to confirm:

• WSIB coverage: The contractor must have Workplace Safety and Insurance Board coverage. If a worker is injured on your property without it, you could be liable.
• General liability insurance: Ask for a current certificate. This covers damage to your property during the project.
• RenoMark membership: The Canadian Home Builders' Association's renovation certification program requires a code of ethics, written contracts, and minimum warranty standards.
• Tarion registration: Required by law for anyone building a new home in Ontario. If your project involves new construction, confirm Tarion registration.
• Business legitimacy: Check the City of Ottawa's business licensing database if you have any doubts.

Step 3: Read Reviews — But Read Them Critically

Online reviews are one of the most useful tools for vetting a contractor, but not all reviews are equally valuable. Look for:

• Volume over time: A contractor with 200+ Google reviews collected over several years is very different from one with 20 reviews from the past two months.
• Project-specific details: Reviews that describe specific trades, timelines, or communication patterns are more credible than generic praise.
• How the contractor responds to negative reviews: A professional response to a complaint is a green flag. Defensive or dismissive responses are not.
• Third-party platforms: Google, Houzz, and HomeStars reviews are harder to fake than testimonials on a contractor's own website.

OGC has more than 200 verified reviews across Google and Houzz, accumulated over many years of Ottawa residential projects.

Step 4: Get at Least Three Written Quotes

Getting multiple quotes does two things: it gives you a price benchmark, and it reveals how different contractors think about your project. When comparing quotes:

• Make sure they're covering the same scope of work — a low quote that excludes half the work isn't actually cheaper
• Ask for a detailed cost breakdown: materials, labour, permits, and contractor overhead separately
• Ask whether the price is fixed or an estimate — and what changes the estimate
• Ask about their markup on subcontractors (typically 10–20% is standard)

Our guide on hiring a contractor in Ottawa goes deeper on the questions to ask before signing.

Step 5: Ask About the Permit Process

A contractor who suggests skipping permits to save money or speed up the timeline is telling you something important about how they operate. Permits protect you — not the contractor. Unpermitted work can void your home insurance, kill a real estate deal when you sell, and in the worst cases result in fines or demolition orders. See our article on what happens if you renovate without a permit for the full picture. A good GC pulls permits as a matter of standard practice and manages the inspection process for you.

Step 6: Evaluate Communication Style

More renovations go wrong because of poor communication than poor craftsmanship. Before hiring, assess:

• How quickly do they respond to your inquiry?
• Do they ask smart questions about your project, or just quote blindly?
• Do they explain processes clearly without condescension?
• Will you have a dedicated project manager as a single point of contact?

Your gut during the sales process is usually a good predictor of the relationship during construction.

Step 7: Understand the Contract

Never start work without a written contract. A proper renovation contract should include: scope of work, payment schedule, start and completion dates, how changes are handled (change orders), warranty terms, and what happens if there are disputes. Read it carefully. If anything is vague or missing, ask for clarification before signing.

Who Is the Best General Contractor in Ottawa for My Project?

The best general contractor for your project depends on what you're building, your budget, and how much hand-holding you want through the process. For homeowners who want a fully integrated team that handles design, permits, and construction under one roof — with fixed pricing, a dedicated project manager, and a proven track record of 200+ reviews — Ottawa General Contractors is the standout choice in Ottawa.

Want a free, no-obligation quote? Contact OGC today and see what we can do for your project.