Builder

Defined Builds Limited

Potters Bar5.0· 6 reviews · 3 sources
Companies House
Active incorporated business
Trust score
64out of 100
Rating5.0★
Review volumeLow · 6
Source diversity3 sources
VerificationListed

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

Trust at a glance

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Companies House registration

Active incorporated business

Active

DEFINED BUILDS LIMITED is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.

Legal nameDEFINED BUILDS LIMITED
Company number10703977
Incorporated
Registered activityBuilding completion & finishing
Official checkListed
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Planning evidence

Nearby projects

Checking nearby planning applications.

About

Here at Defined Builds Limited we are specialists in house renovations, loft conversions and extensions. We can offer our clients a complete package tailored to their needs. We will take you from your first initial ideas and guide you through the process to the final stage, where we will provide you with a spectacular finish. We pride ourselves on high end attention to detail and take on each project as if it were our own home; not resting until we have got the finish and end result that we know is possible to achieve. We can project manage the whole process for you which will take out any stress or unforeseen problems. Defined Builds. In Pursuit of Perfection.

Reviews · public evidence

What customers say

5.0out of 5
6 reviews in public evidenceCross-checked across 1 source
5 stars6
4 stars0
3 stars0
2 stars0
1 star0
Which? Trusted Traders6 reviews · 5.0 avg

Highlights

"Building work to create a new kitchen diner from two separate rooms plus utility area and downstairs toilet. New bathroom fitted upstairs. Internal decorations, new doors and stair banister fitted. External ground works to create new patio, retaining walls and hard landscaping. The Defined Build team worked to a high standard and we are delighted with the work. The site was kept tidy and well organised. We were kept informed of progress at all times and different options were discussed where necessary. The team was respectful to our neighbours and polite and friendly at all times."

Which? Trusted Traders ConsumerWhich? Trusted Traders5.0 rating

"We had a new kitchen installed which included units, worktops, appliances and flooring. Defined Builds Limited were professional, reliable, tidy, provided a high standard of workmanship and finished the work on time by an experienced team."

Which? Trusted Traders ConsumerWhich? Trusted Traders5.0 rating

"Our works involved a rear and side extension, re-work of the entire ground floor, along with a re-do of our first floor bathroom and decorating some bedrooms. From the initial chats we had with James from Defined Builds, we knew he was our preferred choice. He is upfront and honest from the get go which was a big selling point for us. This honesty was clear throughout the house works - James was always able to give an honest opinion and advise us on inevitable obstacles we came across throughout the process, and always gave us the best advice financially without compromising on quality. One thing you can be certain with Defined Builds is the high quality of their work - the entire team are absolute perfectionists and have an eye for detail which means you never have to point an issue out to them. We have never had to fault their work which is a testament to the quality of their work (especially as my dad always looked into the detail on every aspect at every stage). James also spent a significant amount of time discussing the works with us to keep us in the loop and address any worries we had, even on aspects that were out of his scope of work (e.g. we had the kitchen fitted by another supplier, but he spent time discussing the logistics and process of this with us). The team are a friendly bunch who make the effort to be friendly with our neighbours which meant we had no issues or complaints. They also tidied up after themselves at the end of each day so the house was always tidy. James is also very reasonable and fair, as well as honest with the time the team have spent on certain additional work we had them do. The more we saw the high quality of their work, the more we ended up asking them to do. Once the works were completed, we have been extremely happy with our decision to go with Defined Builds as everything has been done to a high quality and we know it is rare to not have a single complaint on the final outcome. If quality and personable touch is what you"

Which? Trusted Traders ConsumerWhich? Trusted Traders5.0 rating

Detailed reviews

Which? Trusted Traders Consumer5.0 / 5

Building work to create a new kitchen diner from two separate rooms plus utility area and downstairs toilet. New bathroom fitted upstairs. Internal decorations, new doors and stair banister fitted. External ground works to create new patio, retaining walls and hard landscaping. The Defined Build team worked to a high standard and we are delighted with the work. The site was kept tidy and well organised. We were kept informed of progress at all times and different options were discussed where necessary. The team was respectful to our neighbours and polite and friendly at all times.

Which? Trusted Traders
Which? Trusted Traders Consumer5.0 / 5

We had a new kitchen installed which included units, worktops, appliances and flooring. Defined Builds Limited were professional, reliable, tidy, provided a high standard of workmanship and finished the work on time by an experienced team.

Which? Trusted Traders
Which? Trusted Traders Consumer5.0 / 5

Our works involved a rear and side extension, re-work of the entire ground floor, along with a re-do of our first floor bathroom and decorating some bedrooms. From the initial chats we had with James from Defined Builds, we knew he was our preferred choice. He is upfront and honest from the get go which was a big selling point for us. This honesty was clear throughout the house works - James was always able to give an honest opinion and advise us on inevitable obstacles we came across throughout the process, and always gave us the best advice financially without compromising on quality. One thing you can be certain with Defined Builds is the high quality of their work - the entire team are absolute perfectionists and have an eye for detail which means you never have to point an issue out to them. We have never had to fault their work which is a testament to the quality of their work (especially as my dad always looked into the detail on every aspect at every stage). James also spent a significant amount of time discussing the works with us to keep us in the loop and address any worries we had, even on aspects that were out of his scope of work (e.g. we had the kitchen fitted by another supplier, but he spent time discussing the logistics and process of this with us). The team are a friendly bunch who make the effort to be friendly with our neighbours which meant we had no issues or complaints. They also tidied up after themselves at the end of each day so the house was always tidy. James is also very reasonable and fair, as well as honest with the time the team have spent on certain additional work we had them do. The more we saw the high quality of their work, the more we ended up asking them to do. Once the works were completed, we have been extremely happy with our decision to go with Defined Builds as everything has been done to a high quality and we know it is rare to not have a single complaint on the final outcome. If quality and personable touch is what you

Which? Trusted Traders
Customer in Greater London5.0 / 5

We had a really great experience working with James to refit our kitchen. James is generous with his time and during the consultation phase gave us lots of considered suggestions on how to maximise and improve our working space. James has great attention to detail and when anything wasn't quite right was quick to respond and rectify it. He kept us up to date with how the work was progressing, and I also felt that James priced the project fairly. I would definitely recommend James to anyone considering a home-renovation project.

Which? Trusted Traders
Customer in Greater London5.0 / 5

I highly recommend James and the Defined Builds team. They completed extensive outdoor work for us, including garden landscaping and patio creation at the back and elegant brick paving at the front. James and his team have excellent knowledge and experience and the quality of their work has been consistently high. James was great at listening to our ideas and finding ways to make them work. His advice was always invaluable and took into account both practicality and aesthetics. James always kept us up to date on progress and next steps. We are extremely happy with the end result.

Which? Trusted Traders
Customer in Greater London5.0 / 5

Thank you James and team- Really happy with are kitchen. Was a really difficult install however made to look easy by a great team.

Which? Trusted Traders
Local context

Rated 5.0★ — in line with the local average for builders in Potters Bar

Across 9 rated builders in Potters Bar, the typical rating is 5.0★. We compare against the same businesses a homeowner would find searching for this trade locally.

Public evidence checks

Trust checks and red flags

Public evidence shown
Public review evidence5.0★ from 6 public reviewsAcross Which? Trusted TradersCompanies HouseCompanies House OfficersWhich? Trusted Traders
Sources

Every signal, traced to its origin

3 named sources
Independent checks

About this business

A real, registered businessWe cross-checked Companies House: this business is officially registered for work that matches the builder services it advertises - independent confirmation it's a genuine business set up to do this kind of work, not just a directory entry.
Public evidence checks

What's strong, and what to check yourself

Strong signals
Rating: 5.0★
Source diversity: 3 sources
!Worth checking yourself
!Review volume: Low · 6
!Verification: Listed
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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.
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Check the credentials and registrations that matter for this work — and that they are current.
Good to know

Common questions about Defined Builds Limited

What do customers say about Defined Builds Limited?

Defined Builds Limited has 6 public reviews, averaging 5 out of 5, gathered across 3 independent sources. You can read the individual reviews and where each came from in the reviews section above.

How do I know Defined Builds Limited's reviews are genuine?

Defined Builds Limited's 6 public reviews are gathered and cross-checked across 3 independent public sources. Reviews spread across several named sources are harder to fake than a single polished page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.

Is Defined Builds Limited a registered business?

DEFINED BUILDS LIMITED is a registered business on Companies House (company number 10703977), incorporated 3 Apr 2017, listed as active. This confirms the legal registration of the business — not evidence of workmanship or service quality.

Public evidence last checked May 2026

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