Builder
Mills Building Co
Trust score
66out of 100
Rating4.9★
Review volume28
Source diversity1 source
VerificationListed
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
About
Verified builder in Royston, Hertfordshire.
Reviews · public evidence
What customers say
4.9out of 5
Highlights
"We are very happy with the work that Alex and his team carried out yesterday. They arrived on time, got on with the job and were professional, efficient and friendly. We would highly recommend them!"
"Alex and his colleague were here nice and early having brought the job forward - quoted and completed in one week! The options (different lintel types) were explained to me, so I knew exactly what the options were and what work they would do. They took care over protecting the patio / plants, and generally todos up after themselves (I just had to sweep and mop the brick dust that got into the kitchen). I’d recommend Alex - pragmatic, no-nonsense, good value, polite and friendly. What more could you want?"
"We hired Alex for a full garage conversion and was impressed throughout. The team delivered high‑quality work across every stage, including structural changes and insulation. Communication was clear, issues were handled proactively, and the site was kept tidy. The final result exceeded expectations and has added real value to the property. I would confidently recommend them."
Detailed reviews
We hired Alex for a full garage conversion and was impressed throughout. The team delivered high‑quality work across every stage, including structural changes and insulation. Communication was clear, issues were handled proactively, and the site was kept tidy. The final result exceeded expectations and has added real value to the property. I would confidently recommend them.
We are very happy with the work that Alex and his team carried out yesterday. They arrived on time, got on with the job and were professional, efficient and friendly. We would highly recommend them!
Alex and his colleague were here nice and early having brought the job forward - quoted and completed in one week! The options (different lintel types) were explained to me, so I knew exactly what the options were and what work they would do. They took care over protecting the patio / plants, and generally todos up after themselves (I just had to sweep and mop the brick dust that got into the kitchen). I’d recommend Alex - pragmatic, no-nonsense, good value, polite and friendly. What more could you want?
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Public evidence checks
Public evidence shownTrust checks and red flags
Public review evidence4.9★ from 28 public reviewsCheckatrade
Sources
1 named sourcesEvery signal, traced to its origin
Review sources
Checkatrade
Public evidence checks
What's strong, and what to check yourself
✓Strong signals
✓Rating: 4.9★
✓Review volume: 28
!Worth checking yourself
!Source diversity: 1 source
!Verification: Listed
Verify at the sourceCheck them yourself
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Be wary of a cash-only price or pressure to start tomorrow — both are red flags for an unaccountable job.
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Public evidence last checked April 2026
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