# Extensa Design and Build Ltd

Extensa Design and Build Ltd is a builder in London. Rated 4.8/5 from 37 public reviews across 1 review source. This is the MyTrustedTraders public-evidence profile for this trader, with independent reviews, credentials and registry data from named public sources, no ads, and no paid placement.

No Trust Score yet: not enough public evidence held to score this business.

## Public review evidence (by source)
| Source | Average rating | Reviews |
| --- | --- | --- |
| Checkatrade | 4.8/5 | 37 |

Most recent review: 7 months ago.

## What customers consistently say
_Recurring strength themes from this trader's own reviews, each with a verbatim quote:_
- **Clear communication** (Quoted from 2 reviews): "communication was excellent" · Checkatrade, 28 Dec 2025

## In customers' own words
_Verbatim quotes from this trader's public reviews, each attributed to its source:_
> "We had our garage done by Joe and the team with insulation and under roof storage. We were very happy with the results. Their communication was excellent in terms of responsiveness and clarity, they were very flexible and adapted to our requirements really well but also made great suggestions to address our needs which improved the final result. I would strongly recommend and will definitely work with them again for future projects."
> Source: Anonymous (5.0, via Checkatrade)

> "We found Extensa through Checkatrade. We had 6 quotes, but chose them based on an expert's review of their quote. Friends said double the timeframe/budget/stress. We didn’t need to. This team have been AMAZING. Not only did they deliver on time and on budget – they have created a home that we love so much that I literally get up in the middle of the night to have a look in disbelief. They fulfilled the impossible task of getting us in for Christmas, to the highest of standards. We love every person on the team. Even my son asked Santa for a toolbox as inspo from Extensa. Thank you so much."
> Source: Anonymous (5.0, via Checkatrade)

> "Extensa undertook a single storey house extension for us. The communication was excellent and the work generally smooth. When issues arose such as surprises in the ground, they were clear, transparent and available which really helped put us at ease. I have no complaints about Extensa and would happily recommend them. The lessons learned which are largely unrelated to Extensa would be to properly understand the planning system and order sliding doors early in construction to avoid delays"
> Source: Anonymous (4.5, via Checkatrade)

## Trades
Builder, Landscaper

## Services they list
_Listed on public sources or the business's own website; check directly that they cover your job before you book:_
- Extensions / Conversions
- Foundations
- Garage Conversions
- Garden Studios
- Loft Conversions
- New Builds
- Refurbishments
- Structural Steels
- Sustainable Construction

## Areas covered
_Towns and areas this trader lists serving. This is their own stated coverage, so confirm they cover your exact address before you book:_
- London

## What we checked, and when
_What MyTrustedTraders independently checked for this business (verified items only):_
- Review volume: MyTrustedTraders shows 37 public reviews on this profile. (via MyTrustedTraders public listing)
- Public listing spread: MyTrustedTraders shows 1 public listing for this trader. (via MyTrustedTraders public listing)
- Business identity: MyTrustedTraders shows public business identity data with operating status unknown. (via MyTrustedTraders public listing)
- Contact phone: MyTrustedTraders shows a public phone contact on this profile. (via MyTrustedTraders public listing)
- Current credentials shown: MyTrustedTraders shows 1 current credential on this profile. (via Public credential evidence)

Full verification checklist: https://mytrustedtraders.com/traders/extensa-design-and-build-ltd/checks

## Credentials & sources
- Credentials shown: 1
  - Federation of Master Builders: the Federation of Master Builders: members are independently inspected and can offer an insurance-backed warranty As a member of the Federation of Master Builders, you get independent vetting of the builder, the option of an insurance-backed warranty on the work and access to a dispute resolution service.
- Companies House status: Unknown
- Evidence held from: Checkatrade, Federation of Master Builders
- Check dates vary by source. Where we hold a date, the check shows it.

## Before you hire a builder
_What to check when choosing this kind of trade (general guidance, not a claim about this business):_
- 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.

## Contact
- Phone: 07401 287195

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Source: MyTrustedTraders, https://mytrustedtraders.com/traders/extensa-design-and-build-ltd
Real public evidence only: every figure traces to a named source, with evidence held from 2 named public sources. If a source does not carry a field, it is not shown.