Best of Houzz is an annual award from the home-renovation platform Houzz, given to the professionals its community rates most highly for design or customer service.
View award source (opens in new tab)Public evidence profile
Callender Howorth Interior & Architectural Design
Awards & recognition
1 independent award
Trust Score
43out of 100
- Rated 4.9 from 48 reviews
How this score is worked out
Rating4.9 / 5
Review volume48
Independent sources1 independent public source
CredentialsNo credentials shown yet
How this score is made up
What customers say34.6 of 60.7
Independent checks7.1 of 28.6
Track record1.3 of 10.7
See the independent checks
- Licences and credentials0 of 7.1
- Ways to reach them4.8 of 4.8
- Photos of their work0 of 11.9
- Industry recognition2.4 of 4.8
Missing evidence lowers the score because we can't check it. It doesn't mean it doesn't exist. Claiming a profile never changes the score. Evidence context, not a guarantee of workmanship.
Independent recognition
Awards & recognition
These are independent third-party awards: recognition earned from review communities and trade bodies, never paid placement.
Source-listed gallery
5 photosPhotos listed on Houzz
These sources do not label every image as completed work. The gallery may include projects, people, logos or certificates, so it does not count as completed-work evidence.
Reviews · public evidence
What customers say
These review totals are published independently on the named public source below, not testimonials this business chose to show. We show the aggregate rating, review volume, and source attribution we hold so you can weigh the evidence yourself.
4.9out of 5
Where these reviews are published
- Houzz48 reviews · 4.9 avg
Local context
Rated 4.9, in line with the local average for interior designers in Saint-Jerome, QC
Across 5 interior designers in Saint-Jerome, QC, the typical rating is 4.9 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.
Sources
1 named public sourceWhere this information comes from
Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.
Review sources
Check dates vary by source. Where we hold a date, the check shows it.
About
Callender Howorth is one of the UK’s leading international luxury interior design practices renowned for their stunning portfolio and memorable residential interiors. With offices in the French Riviera, Central London and New York - their multi-disciplinary team of award-winning architects and designers specialise in interior architecture, interior design and build with complete project management. A passion for design, an unparalleled commitment to excellence, and 25 years of experience have led Callender Howorth to deliver exceptional design and renovation of exclusive villas on the Cote d’Azur, restoration of listed London townhomes to “state of the art” penthouses in Manhattan, prestigious properties in Paris, panoramic beach homes in Laguna Beach, and wine country estates in Ojai, California. Our clients are at the heart of every project and benefit from a complete project management team. Contact us about your next project. London office: +44 207 3368 560 New York office: +1 470 798 4146 French Riviera office: +33 483 5805 27
Services they list
Architectural DesignArchitectural DrawingsBasement ConversionBasement DesignBuilding DesignConservatory Design & InstallationHome Cinema DesignHome RenovationHouse ExtensionsHouse RestorationInterior DesignKitchen Design
Listed on public sources or the business's own website; check directly that they cover your job before you book.
What this business says about itself
From their own website
What this business says about itself
See their work: Houzz (opens in new tab) · Instagram (opens in new tab) · Facebook (opens in new tab)
- Established: 1997 (29 years in business)
- Experience they state: 25 years
- Areas served: London, Paris, French Riviera, New York, Los Angeles
- Good to know: Design service
- Languages spoken: English, French
These are statements the business makes on its own website, worth confirming in writing (and on the official registers) before you hire, not independently verified by us.
Independent checks
About this business
How long they've really been tradingThey state they've been established since 1997, but the earliest independent source we can find is 2017. Worth asking them about the gap.
They say, established1997Award-winning since2017
Your own checks
What to check before you hire
Worth checking yourself
Their public evidence comes from a single source. Look them up on another site before deciding.
No credentials are shown here and the business has not claimed this profile. Ask to see certificates and insurance directly.
Trade licensing in Canada is set by each province or territory. Electrical, gas and plumbing are licensed trades almost everywhere (for example ESA for electrical and TSSA for gas in Ontario), so check your provincial regulator that the contractor is certified for the work before you hire.
A construction lien is a real risk: in every province an unpaid subcontractor or supplier can register a lien against your home even if you already paid the main contractor. Hold back the statutory amount (commonly around 10%) and get signed lien waivers as you pay.
Ask to see a portfolio of completed work like yours, plus recent references you can contact.
Want an extra legitimacy check? Run the Rogue Contractor Check on Callender Howorth Interior & Architectural Design before you contact them.
Run Rogue Contractor Check →Good to know
Common questions about Callender Howorth Interior & Architectural Design
Is Callender Howorth Interior & Architectural Design a legitimate business?
Callender Howorth Interior & Architectural Design has 48 independent public reviews, rated 4.9 out of 5. This is independent public evidence gathered from named public sources (no ads, no paid placement), not a guarantee of workmanship. If anything here is out of date, the business can request a correction.
What do customers say about Callender Howorth Interior & Architectural Design?
Callender Howorth Interior & Architectural Design has 48 public reviews, averaging 4.9 out of 5. The reviews section shows the aggregate rating, review volume, and review source information we hold.
How do I know Callender Howorth Interior & Architectural Design's reviews are genuine?
Callender Howorth Interior & Architectural Design's 48 public reviews come from a named public review source. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show the review source information and aggregate rating we hold rather than selling rankings, so you can weigh the evidence for yourself.
Has Callender Howorth Interior & Architectural Design won any awards?
Callender Howorth Interior & Architectural Design holds 1 independent award, including 8× Best of Houzz winner (2026, 2025, 2024, 2022, 2021, 2020, 2018, 2017). These are third-party awards: recognition that has to be won, not self-issued.
What does Callender Howorth Interior & Architectural Design specialise in?
Callender Howorth Interior & Architectural Design lists specialist services including Architectural Design, Architectural Drawings, Basement Conversion, Basement Design, Building Design, Conservatory Design & Installation. If your job is one of these, look for it in their listed services or ask them to confirm for your project.
What areas does Callender Howorth Interior & Architectural Design cover?
They state on their own website that they cover London, Paris, French Riviera, New York, Los Angeles. This is the business's own statement on their website, not something we have independently checked. Confirm they cover your postcode before booking.
How long has Callender Howorth Interior & Architectural Design been trading?
They state on their own website that the business was established in 1997 (29 years in business). This is the business's own statement on their website, not something we have independently checked.
