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 · Checked July 2026
Kantec
Planning history
26 public planning applications
Awards & recognition
1 independent award
Trust Score
45out of 100
- Rated 4.9 from 58 reviews
How this score is worked out
Rating4.9 / 5
Review volume58
Independent sources1 independent public source
CredentialsNo credentials shown yet
How this score is made up
What customers say35.5 of 60
Independent checks8.6 of 30
Track record1.3 of 10
See the independent checks
- Licences and credentials0 of 10.3
- Ways to reach them3.4 of 3.4
- Reviewed on more than one site0 of 5.1
- Registered company details0 of 5.1
- Photos of their work4.3 of 4.3
- Industry recognition0.9 of 1.7
Verified planning history
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.
Trust at a glance
2 checksWhat we can verify about Kantec
Each card sums up one thing we can check from public sources. Open it for the full detail and the named source. This is evidence context, not a guarantee.
Planning history26 public planning applicationsSee detail →Awards & recognition1 independent awardSee detail →
See the full verification checklist for Kantec →Planning history
Kantec’s real planning history from public planning applications, showing where they’ve worked and how often schemes were approved. · Active 2018–2026
approval rate77%
planning applications26
approved schemes10
councils worked in3
What they work on
The kinds of project Kantec has filed planning applications for.
- Loft conversion3
- Rear extension9
- Side extension3
- Two-storey extension1
- Extension23
- Balcony / roof terrace2
- Demolition7
- Roof / fenestration8
Where they’ve worked
Each pin is a planning application, coloured by the council decision we found.
Council experience
- Ealing · 20 applications since 2019See planning experience in Ealing
- Brent · 4 applications since 2018See planning experience in Brent
- Newham · 2 applications since 2020See planning experience in Newham
Recent planning applications
- No decision82 Cuckoo Dene Hanwell W7 3DRPart single, part two storey rear extension; alteration to side fenestration (Following demolition of existing rear extension)
- No decision23 Regina Terrace West Ealing W13 9HYSingle storey rear extension
- Approved73 Queen Annes Grove Ealing W5 3XPAlteration of roof from hip to gable end; rear roof extension, and installation of three rooflights to front roofslope (Lawful Development Certificate for a Proposed Development)
- No decision26B Castlebar Park Ealing W5 1BXConversion of a garage into a habitable room including associated external alteration involving the insertion of a window in lieu of the garage door opening; single storey side extension.
- Approved26B Castlebar Park Ealing W5 1BXAlteration of roof from hip to gable end; rear roof extension and installation of three roof lights to front roofslope (Lawful Development Certificate for a Proposed Development)
- Refused15 Curzon Road Ealing W5 1NESingle storey rear extension, following demolition of existing rear addition (Lawful Development Certificate for Proposed Development)
- Withdrawn15 Curzon Road Ealing W5 1NESingle storey rear extension (following demolition of existing rear addition)(Lawful Development Certificate for Proposed Development)
- Withdrawn48 Northcroft Road West Ealing Ealing W13 9SXAlteration of roof from hip to gable end; rear roof extension
Show all 26 planning applicationsShow fewer planning applications
- No decision47 Greenford Gardens Greenford Middlesex UB6 9LZSingle-storey rear extension.
- Approved4 Willis Road Stratford London E15 3HHApplication for a lawful development certificate for the proposed construction of a rear dormer extension including roof lights to the front elevation.
- Refused46 Fernbank Avenue, Wembley, HA0 2TRConversion of the dwellinghouse into 2 self-contained flats to also include cycle parking, bin stores and amenity space.
- Refused4 Willis Road Stratford London E15 3HHApplication for a lawful development certificate for the proposed construction of a rear dormer extension including skylights to the front elevation.
- Approved22 St Dunstans Road Hanwell London W7 2HBRoof extension to rear (main) roof slope; roof extension over rear outrigger roof slope and installation of three roof lights to front roof slope.
- Approved46 Fernbank Avenue, Wembley, HA0 2TRCertificate of lawfulness for proposed loft conversion with rear dormer window and juliet balcony, removal of chimney stack, and insertion of three rooflights to the front elevation of dwellinghouse.
- Approved46 Fernbank Avenue, Wembley, HA0 2TRCertificate of lawfulness for proposed single storey rear extension to dwellinghouse.
- Approved45 Warwick Road Ealing London W5 5PZRoof extension to rear (main) roof slope; part rear mansard roof extension to rear outrigger roof slope; and removal of chimney breast from outrigger building (Lawful Development Certificate for a Proposed Development)
- No decision45 Warwick Road Ealing London W5 5PZSingle storey side/rear extension (following demolition of existing side/rear extension) and alteration to existing ground floor, rear window to bi-folding doors
- No decision65 Osterley Park View Road Hanwell London W7 2HGSingle storey rear/side extension (following demolition of garage)
- Approved36 Wyndham Road West Ealing London W13 9TERoof extension to the main rear roof slope incorporating a Juliet balcony; installation of three roof lights to front roof slope; extension to existing flue to rear elevation; and demolition of chimney stacks (Lawful Development Certificate for a Proposed Development)
- Withdrawn65 Osterley Park View Road Hanwell W7 2HGApplication for a Non-Material Amendment (S96a) to planning permission ref: 194165HH dated 20/11/2019 for: Single storey rear and side extension (following demolition of garage). Amendment proposes alterations from pitch roof to flat roof for the approved extension
- No decision13 Marlborough Road Ealing W5 5NYSingle-storey rear infill extension; and associated internal and external alterations
- No decision62 Rosebank Road Hanwell London W7 2ENSingle storey side/rear wrap around extension
- Approved62 Rosebank Road Hanwell London W7 2ENRoof extension to rear (main) roof slope; part rear roof extension to rear outrigger roof slope and installation of two roof lights to front roof slope (Lawful Development Certificate for a Proposed Development)
- No decision65 Osterley Park View Road Hanwell London W7 2HGSingle storey rear and side extension (following demolition of garage)
- No decisionGround Floor Flat 99 Milton Road Hanwell London W7 1LGSingle-storey rear infill extension to ground floor flat
- Approved19 Priory Gardens, Wembley, HA0 2QGProposed single storey wrap around extension (side and rear), with part conversion of garage to habitable room to dwellinghouse
Independent recognition
Awards & recognition
These are independent third-party awards: recognition earned from review communities and trade bodies, never paid placement.
Source-listed gallery
1 photoPhotos 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
- Houzz58 reviews · 4.9 avg
Local context
Rated 4.9, in line with the local average for builders in London
Across 2630 builders in London, 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
2 named public sourcesWhere 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
Business and public registers
Public evidence last checked July 2026
About
Kantec is a West London based residential construction company specialising in home refurbishments, extensions and conversions. We are well known for our quality designs, workmanship, as well as our excellent customer service. While some of our clients come to us ready to build, with architectural drawings in place and planning permission granted, many are right at the beginning of their renovation journey with nothing more than an idea - which is why we also offer an in-house design service. Kantec’s in-house design service means that we are able to manage your entire renovation – from producing the architectural drawings and gaining your planning permission, right through to building and finishing the project. Our straightforward, transparent process applies as much to our design stage as it does to quoting, planning and building. You can find out more about how we turn your dreams into designs below. Get in touch today!
Services they list
Basement ConversionBuilding ConservationCustom HomeHome RenovationHouse ExtensionsHouse PlansHouse RestorationLoft ConversionNew Home ConstructionProject ManagementSustainable DesignUnderfloor Heating
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
- Good to know: Design service
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 tradingIndependent sources agree they've been operating since at least 2018. That's 8 years, confirmed across 2 separate sources.
Website online since2012Planning approvals since2018Award-winning since2019
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.
Verify at the sourceCheck them yourself
This trade isn't licensed in the UK, so anyone can set up. TrustMark is the only Government-endorsed quality scheme for work in and around the home - check whether they're registered, or find a TrustMark-registered business.
Check the TrustMark registerNever pay a large deposit up front. Agree a staged payment schedule tied to completed milestones, and hold a small retention until snagging is done.
Get it in writing: an itemised quote with scope, materials, start and finish dates, and how any changes (variations) will be priced.
Be wary of a cash-only price or pressure to start tomorrow. Both are red flags for an unaccountable job.
Want an extra legitimacy check? Run the Cowboy Checker on Kantec before you contact them.
Run Cowboy Checker →Good to know
Common questions about Kantec
Is Kantec a legitimate business?
Kantec has 58 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 Kantec?
Kantec has 58 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 Kantec's reviews are genuine?
Kantec's 58 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 Kantec won any awards?
Kantec holds 1 independent award, including 2× Best of Houzz winner: 2019–2023 (Service). These are third-party awards: recognition that has to be won, not self-issued.
Has Kantec had planning applications approved?
Public council decisions show 10 approved applications for Kantec across 3 councils, the most recent in 2024. That's a 77% approval rate across 13 decided applications, not a self-declared claim.
What does Kantec specialise in?
Kantec lists specialist services including Basement Conversion, Building Conservation, Custom Home, Home Renovation, House Extensions, House Plans. If your job is one of these, look for it in their listed services or ask them to confirm for your project.
When was Kantec's website registered?
Kantec's website has been online since 2012, according to the public domain registry. This dates the website, not necessarily when the business began trading.
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