Builder
Cosybuild Ltd
Trust score
62out of 100
Rating5.0★
Review volumeLow · 18
Source diversity1 source
VerificationListed
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
About
Verified builder in St Albans.
Reviews · public evidence
What customers say
5.0out of 5
Highlights
"Cosy Build did a complete renovation of a 2 bedroom 2 bathroom flat for me. The work was done to a very high standard. They communicated very well. Went out of their way to do other bits and pieces which was really appreciated. They explained everything they were doing. Will be using Cosy Build for future projects!!"
"Our flat had an infestation of mice which needed urgent attention. Luan came to our rescue. He was very quick to get back to me with an evaluation of the job and an accurate quote. He was able to start the work immediately: removing the old kitchen, rebuilding the walls, sealing all gaps and finally fitting the new kitchen. His work is excellent and very thorough. He kept in contact with me about the progress and communication was great. I’m so grateful for such swift and efficient work which rectified the rodent problem completely and delivered a beautifully fitted new kitchen. Thank you Luan"
"Luan did a great job for me - removed fitted wardrobes, made good the walls and ceilings afterwards, repaired floorboards, painted three rooms to a high standard, and fitted risers to some stairs so that they could be carpeted. Work completed on time, to a good standard, and everything left clean and tidy at the end. Would recommend - thanks Luan!"
Detailed reviews
Showing the 3 reviews we hold full text for. The 18 headline total is the review volume reported across Cosybuild Ltd’s public review sources.
Cosy Build did a complete renovation of a 2 bedroom 2 bathroom flat for me. The work was done to a very high standard. They communicated very well. Went out of their way to do other bits and pieces which was really appreciated. They explained everything they were doing. Will be using Cosy Build for future projects!!
Luan did a great job for me - removed fitted wardrobes, made good the walls and ceilings afterwards, repaired floorboards, painted three rooms to a high standard, and fitted risers to some stairs so that they could be carpeted. Work completed on time, to a good standard, and everything left clean and tidy at the end. Would recommend - thanks Luan!
Our flat had an infestation of mice which needed urgent attention. Luan came to our rescue. He was very quick to get back to me with an evaluation of the job and an accurate quote. He was able to start the work immediately: removing the old kitchen, rebuilding the walls, sealing all gaps and finally fitting the new kitchen. His work is excellent and very thorough. He kept in contact with me about the progress and communication was great. I’m so grateful for such swift and efficient work which rectified the rodent problem completely and delivered a beautifully fitted new kitchen. Thank you Luan
Local context
Rated 5.0★ — above the local average for builders in St Albans
Across 35 rated builders in St Albans, the typical rating is 4.8★. 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 18 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★
!Worth checking yourself
!Review volume: Low · 18
!Source diversity: 1 source
!Verification: Listed
Verify at the sourceCheck them yourself
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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.
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