Home Renovation Contractors in Ottawa

This guide compares 10 general contractors serving Ottawa. The featured shortlist includes Select Urban General Contractors, Lagois Design Build Renovate, and RenosGroup, each a real, currently-operating Ottawa business selected for its local track record and public reviews.

The best home renovation contractors in Ottawa are the difference between a project that finishes on time and one that stalls for months. They manage the permits, coordinate every trade, and keep you informed through renovations, additions, and basement finishing. The companies below handle home renovations, additions, basement finishing, and whole-home projects, dealing with the City's permit process and inspections along the way. Each is a real, currently-operating Ottawa business with public reviews you can check, so you can weigh past work, communication, and how they structure payments before you hand over a large project.

Typical Ottawa cost: $35,000 to $70,000 for a basement finish; additions higher10 companies compared10 rated on Google

Also covers: Home renovation · Home additions · Basement finishing · Whole-home remodels · General contractors

Featured professionals

General Contractors worth considering

A focused Ottawa shortlist. Partners are labeled and shown first; all other placement follows real ratings.

Partners are always labeled. Sorting changes the order you see; placement cannot be bought.

Featured

RenosGroup

Kanata4.9(29)

General ContractorsView details
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Also serving Ottawa

Buyer guide

Hiring a general contractor in Ottawa

What separates a great general contractor from a cheap quote, and the questions worth asking before you sign.

  • Look at how they communicate, not just their portfolio

    On a months-long project, weekly updates and a clear point of contact matter as much as pretty photos. Ask how they keep clients informed and who you call with questions.

  • Understand the payment schedule

    Reputable Ottawa contractors tie payments to milestones, never a large sum up front. Be cautious of anyone asking for most of the money before work begins.

  • Confirm permits and who pulls them

    Additions, structural changes, and many basement finishes need City of Ottawa permits and inspections. A good contractor handles this; get it in the contract.

  • Get everything in a written contract

    Scope, materials, allowances, timeline, and change-order process should all be in writing. A detailed contract protects both sides when something inevitably shifts.

Common questions

General Contractors in Ottawa, answered

How much does a home renovation cost in Ottawa?
It varies widely by scope, but a full basement finish often runs 35,000 to 70,000 dollars and a major addition far more. Ask for a detailed, itemized estimate rather than a per-square-foot guess.
Do I need a permit for my renovation in Ottawa?
Structural work, additions, new plumbing or wiring, and most basement finishes need City of Ottawa permits. Cosmetic work usually does not. A good contractor tells you clearly which applies.
How long does a renovation take?
A basement finish might take 6 to 10 weeks, a kitchen 6 to 10 weeks, and an addition several months. Material lead times and permits are the usual causes of delay; ask about both up front.
How do I avoid hiring a bad contractor?
Get multiple written quotes, check recent references and reviews, confirm insurance and WSIB, and never pay a large deposit up front. A quote far below the others is a warning, not a bargain.
What is a change order?
A change order is a written record of a change to the agreed scope and its cost. Insist that changes are documented this way so the final bill holds no surprises.

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