Builder

JNA Developments (London) Limited

Tadworth4.8· 87 reviews · 1 source
Trust score
77out of 100
Rating4.8★
Review volume87
Source diversity1 source
VerificationListed

Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.

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About

Verified builder in Tadworth, Surrey.

Reviews · public evidence

What customers say

4.8out of 5
87 reviews in public evidenceCross-checked across 1 source
CheckatradeSource profile linked

Highlights

"We had a few quotes from different companies before we chose JNA Developments to carry out our loft conversion. From our initial meeting with Justin we instantly felt at ease. Justin is very knowledgable & came up with some great ideas for the best way to use the space. Justin’s team were very polite & conscious that we were still living in the house while the work was being done. All the work was completed to a very high standard & we would highly recommend them. We’re doing an extension next, which JNA will be carrying out."

AnonymousCheckatrade5.0 rating

"Quick and coutreous. Will use again for more work."

AnonymousCheckatrade5.0 rating

Detailed reviews

Anonymous5.0 / 5 ·

We had a few quotes from different companies before we chose JNA Developments to carry out our loft conversion. From our initial meeting with Justin we instantly felt at ease. Justin is very knowledgable & came up with some great ideas for the best way to use the space. Justin’s team were very polite & conscious that we were still living in the house while the work was being done. All the work was completed to a very high standard & we would highly recommend them. We’re doing an extension next, which JNA will be carrying out.

Checkatrade
Anonymous4.7 / 5 ·

Checkatrade
Anonymous5.0 / 5 ·

Quick and coutreous. Will use again for more work.

Checkatrade
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Public evidence checks

Trust checks and red flags

Public evidence shown
Public review evidence4.8★ from 87 public reviewsCheckatrade
Sources

Every signal, traced to its origin

1 named sources

Review sources

Checkatrade
Public evidence checks

What's strong, and what to check yourself

Strong signals
Rating: 4.8★
Review volume: 87
!Worth checking yourself
!Source diversity: 1 source
!Verification: Listed
Verify at the sourceCheck them yourself

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Smart 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.
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