Best Interior Designers and Decorators near Perth, ON
3 of these firms are based in Perth; the others serve Perth from towns including Ottawa, Stittsville and Almonte.
1 open 24/7 · 10 open weekends · 20 rated 4.5+ · 2 show a licence
Data verified October 18, 2026
Studio Nineteen Co.
Decor a la Mode
Rideau Kitchen Centre Ltd
BergstrÖm Design CO.
Jessica Lena Interior Design
The 24 firms listed for Perth, ON take on interior projects. The rooms they specialize in, the credentials they claim and the stages their service covers are all drawn from their own websites, alongside ratings and quotes from public reviews.

Area overview: Perth, ON
22 of the 24 firms on this page have a rating, from 4.0 to 5.0 across 438 reviews; 3 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these firms on specific qualities, they most often praise professionalism (90%), quality (90%) and responsiveness (75%). 1 is open around the clock; 10 are open on Saturdays and 4 on Sundays. 2 show a licence on their websites. 5 have ten or more years of experience, the longest 18 years. 1 offers emergency call-outs; 1 gives free estimates and 3 are family- or locally-owned. We have a website on file for 22 of the firms on this page; 21 publish a contact page; 17 list a public email and 1 takes 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.
Where can I see a firm's finished projects?
Websites appear on 22 of the 24 listings here. Look past the styling for evidence of layouts changed and problems solved, and for homes of your vintage. Ask which projects the firm ran from start to finish and which it only furnished, since the photographs rarely say.