Builder
Onabox Ltd
Companies House
Active incorporated business
Trust score
73out of 100
Rating5.0★
Review volume38
Source diversity1 source
VerificationListed
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
Trust at a glance
1 checkWhat we can verify about Onabox Ltd
Each card summarises one evidence dimension from public sources — open it for the full detail and named source. This is evidence context, not a guarantee.
See the full verification checklist for Onabox Ltd →Companies House registration
ActiveActive incorporated business
Onabox Ltd is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.
Legal nameOnabox Ltd
Company number12135271
Incorporated
Registered activityJoinery installation
Official checkListed
Planning evidence
Nearby projects
Checking nearby planning applications.
About
Verified bedrooms in HORSHAM, West Sussex.
Reviews · public evidence
What customers say
5.0out of 5
Highlights
"⭐️⭐️⭐️⭐️⭐️We couldn’t be happier with the carpentry work completed in our entire hme. Outstanding craftsmanship across our living room cabinets, bedroom furniture x5, office furniture, wall panelling, kitchen cabinets, and integrated lighting strips incl in bathrooms. What stood out was the stength of the design work, craftsmanship with highly functional, and beautiful finishes. The colour matching was spot on incl walnut, creating a cohesive and premium look. I would not go anywhere else - competitive cost with zero compromise on quality, offering inspiration & reliability."
"Antonio was quick to reply to my job request to fit an induction hob and I sent some pictures & received a quote and job start time. He and the team arrived on time and did a good job efficiently, cleaning thoroughly after they had finished. We would use Onabox again."
"Onabox Ltd was a fantastic company to deal with. Onabox stripped out my kitchen and bathroom and then fitted with new units including put up new ceilings with spot lights in three weeks! Antonio was great to deal with and took on my ideas with easy and gave suggestions on how to save money. Absolutely brilliant company to sort out your building projects !!!! I would definitely recommend to use them."
Detailed reviews
⭐️⭐️⭐️⭐️⭐️We couldn’t be happier with the carpentry work completed in our entire hme. Outstanding craftsmanship across our living room cabinets, bedroom furniture x5, office furniture, wall panelling, kitchen cabinets, and integrated lighting strips incl in bathrooms. What stood out was the stength of the design work, craftsmanship with highly functional, and beautiful finishes. The colour matching was spot on incl walnut, creating a cohesive and premium look. I would not go anywhere else - competitive cost with zero compromise on quality, offering inspiration & reliability.
Antonio was quick to reply to my job request to fit an induction hob and I sent some pictures & received a quote and job start time. He and the team arrived on time and did a good job efficiently, cleaning thoroughly after they had finished. We would use Onabox again.
Onabox Ltd was a fantastic company to deal with. Onabox stripped out my kitchen and bathroom and then fitted with new units including put up new ceilings with spot lights in three weeks! Antonio was great to deal with and took on my ideas with easy and gave suggestions on how to save money. Absolutely brilliant company to sort out your building projects !!!! I would definitely recommend to use them.
Page 1 of 2
Local context
Rated 5.0★ — in line with the local average for builders in HORSHAM
Across 35 rated builders in HORSHAM, the typical rating is 5.0★. We compare against the same businesses a homeowner would find searching for this trade locally.
Public evidence checks
Public evidence shownTrust checks and red flags
Public review evidence5.0★ from 38 public reviewsAcross CheckatradeCheckatrade
Sources
1 named sourcesEvery signal, traced to its origin
Review sources
Public evidence checks
What's strong, and what to check yourself
✓Strong signals
✓Rating: 5.0★
✓Review volume: 38
!Worth checking yourself
!Source diversity: 1 source
!Verification: Listed
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 registerSmart checks
Before you hire a builder
Never 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.
Ask to see a portfolio of completed work like yours, plus recent references you can contact.
Check the credentials and registrations that matter for this work — and that they are current.
Good to know
Common questions about Onabox Ltd
What do customers say about Onabox Ltd?
Onabox Ltd has 38 public reviews, averaging 5 out of 5. You can read the individual reviews and where each came from in the reviews section above.
Is Onabox Ltd a registered business?
Onabox Ltd is a registered business on Companies House (company number 12135271), incorporated 2 Aug 2019, listed as active. This confirms the legal registration of the business — not evidence of workmanship or service quality.
Want an extra legitimacy check?
Run the Cowboy Checker on Onabox Ltd before you contact them.
