Ottawa General Contractors
“My husband and I were very pleased with the work done by OGC on our home earlier this year, a project which involved taking down a structural wall to build an open-concept kitchen.”
Best Architects near Nepean, ON
3 of these firms are based in Nepean; the others serve Nepean from towns including Ottawa, Gatineau, QC and Kanata.
2 open 24/7 · 3 open weekends · 19 rated 4.5+
Data verified October 18, 2026
Masterplan Design
“I can tell you that John is very attentive to requirements and visions.”
Canterra Design + Build
“Enter Joe and Cosimo of Canterra, two family-oriented principals whose unwavering integrity and commitment to 'do the right thing' stood out from the very beginning.”
Ha2 Architecture & Design Inc.
“Her commitment to creating distinctive, award-worthy architectural marvels in the Ottawa region is unmatched, making her the perfect partner for those aspiring to push the boundaries of design and innovation.”
Beaulieu Construction Technologue en Architecture
“From the first telephone contact, to reception, his technical knowledge, his varied experiences in both construction and renovations and management with municipal authorities.”
Amsted Design-Build
“When things went wrong (and something always goes wrong) he not only kept his cool but he kept us informed and in the know so that we weren't upset or concerned about anything.”
The 24 firms listed for Nepean, ON provide architectural services. The building types they take, the services they include and the registrations they claim are taken from their own websites, and the ratings and quotes come from public reviews.
Area overview: Nepean, ON
The 24 firms on this page are rated from 4.1 to 5.0 across 571 reviews; 3 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these firms on specific qualities, they most often praise professionalism (90%), quality (80%) and responsiveness (72%). The topics that come up most in reviews of the firms on this page are "communication" and "knowledge". 2 are open around the clock and 3 are open on weekends. 13 have ten or more years of experience, the longest 32 years. 2 offer emergency call-outs; 1 offers financing or payment plans; 1 gives free estimates and 1 is family- or locally-owned. We have a website on file for all 24 of the firms on this page; 22 publish a contact page; 19 list a public email and 2 take bookings online. We count these figures across the firms on this page; hours and prices change, so confirm the details with the firm before you book.
What can an architect's website tell me?
All 24 firms here give a web address. Look for photographs of finished buildings rather than renderings, and for work of your type and scale. A firm that designs schools and a firm that designs laneway houses are answering different questions, and the portfolio usually says which one you are looking at.
Evolution Design & Drafting
“Consulted with Mike, the designs were fantastic and he was great to work with, very personable!”
Moneca Kaiser Design Build
“) We love the full service, client-centred approach: we give them a detailed sense of what we want and they do the rest - from creative design to excellent project management.”
Dustin Design and Drafting
“I've been using Dustin's design services for residential deck permits for over a year now and I've had nothing but professional and reliable service.”
Kariouk Architects
“I have worked with Kariouk Architects for ten years on many different large scale projects, and I know them to be absolutely devoted to their craft and to our shared clients.”
Design Hvac Experts Inc
“It's been great working with Matt and his team!”
Matt Dorsey Design
“Matt's hard work and dedication to each and every project is outstanding.”
La Filature Inc
J.L. Richards & Associates Limited
“Fantastic work and dedication, highly recommended!”
Hierarchy Development & Design Inc
“Absolutely no project goes without some sort of challenges, and it is definitely a benefit to have a company like HDD in your corner along the way.”
Bell+associates Architecture
“His knowledge and expertise resulted in a smooth transition from design to build and I'm well on my way to owning my custom dream home!”
Cubiq Architecture + Design
“We have repeatedly recommended Cubiq to our clients for the design of their development plan and have only good comments about them.”
25:8 Architecture + Urban Design Limited
“They worked on a tight budget and made something amazing out of an old garage!”
Linebox Studio
“These guys truly think outside of the box, we really enjoy working with them”
Merrick Canada
“They were very helpful from the moment I got there and the whole time I was there is was the same with everyone working there.”
Architects DCA
Ardington + Associates Design
“From the first meeting to move in Steve and the team were excellent.”
Renovation Gatineau CP
“They did a great job with my basement renovation!”
Vandenberg & Wildeboer Architects Inc.
“I'm inspired by their creativity, thoughtful consideration, and the authenticity of their character and values which allows those around them to feel respected and heard.”
Why these companies made our list
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