Family-run in Ottawa since 1989

Renovations built to last — and to be lived in.

A full-service general contractor known for heritage craftsmanship, honest communication, and work that speaks for itself — referral after referral.

35+Years in business
1989Family established
Referral-driven, by design
Bright white custom kitchen renovation by Sirois & Sons
25 yrsTrades who stay
Heritage red-brick Ottawa home restored by Sirois & Sons
Welcome to Sirois & Sons

We guide you through the whole journey — start to finish.

Founded in 1989 by Pierre Sirois, we began with exterior landscaping and basement and bathroom renovations, and grew into one of Ottawa's most trusted general contractors. Honesty, clarity and communication keep every project running smoothly.

We deliberately limit how many projects we take on, so every client gets senior attention — and most of our work comes from word-of-mouth referrals.

What we do

Full-service contracting, one accountable team.

01

Home Renovations

Kitchens, bathrooms and basements reimagined with craftsmanship and a finish that lasts.

02

Home Additions

Additions that respect the home you have and unlock the space you need.

03

Barrier-Free Renovations

Thoughtful, accessible design that lets you stay in the home you love.

04

Heritage Restoration

From the Brule House to Centre Block, we restore Ottawa's landmarks with care.

05

Commercial Fit-Ups

Functional, on-budget commercial spaces delivered on schedule.

06

Special Projects

Structural work, water features, skylights — the one-of-a-kind builds others won't take.

Why Sirois & Sons

Four things every client can count on.

01

Heritage Craftsmanship

Three decades of work entrusted with Ottawa's most significant homes and landmarks.

02

One Point of Contact

Pierre is your liaison — meetings, trades, drawings and decisions, handled.

03

Trades Who Stay

Many of our tradespeople have been with us 20 to 25 years. That shows in the finish.

04

Honest Communication

Weekly updates and straight answers, so nothing about your project is a surprise.

In their words

Trusted by Ottawa families for 15+ years.

"Their project management is exceptional and trusted by consistently creating the highest quality homes."

Jacques HamelHamel Design & Planning · GOBA 2016, Old Ottawa South

"The several projects were delivered on time, with weekly updates and problem solving."

Raoul DelcordeAmbassador, Kingdom of Belgium · Rockcliffe Park

"Pierre and his team are professional, knowledgeable, accountable, trustworthy and attentive to small detail."

Liz SawerMultiple kitchen & bathroom renovations

"Pierre and his team are the ones we immediately contact to fix the problem."

Grete Hale & Gay CookThe oldest house in Ottawa (built 1828)
Let's build something lasting

Tell us about your project.

We take on a limited number of projects each year. Reach out and Pierre's team will be in touch to start the conversation.

Request your consultation