# Sigma Building

Sigma Building is a builder in Ampthill. Rated 5.0/5 from 3 public reviews across 1 review source. This is the MyTrustedTraders public-evidence profile — independent reviews, credentials and registry data from named public sources, with no ads and no paid placement.

Trust score: 58/100

## About
Builder in Ampthill, Bedfordshire.

## Public review evidence (by source)
| Source | Average rating | Reviews |
| --- | --- | --- |
| Checkatrade | 5.0/5 | 3 |
| Companies House | — | 0 |

_Per-source review counts may overlap — they need not sum to the 3 cross-checked total above._

Most recent review: 1 year ago.

## In customers' own words
_Verbatim quotes from this trader's public reviews, each attributed to its source:_
> "Excellent Work by Sigma Builder Company! I recently hired Sigma Builder Company to convert my garage into a living room, and I couldn't be happier with the results! They did an outstanding job with great skill and efficiency. The project was completed quickly without compromising on quality. One of the standout aspects of their work was the high-quality materials they used, which not only enhanced the final look but also impressed the inspector. Their attention to detail and professionalism made the entire process smooth and stress-free. I highly recommend Sigma Builder Company to anyone loo"
> — Anonymous (5.0, via Checkatrade)

> "Ionut did an amazing job! He is skilled at many trades and was equally confident building, plastering, plumbing or doing electrical. Everything was finished to a high standard and left tidy. He is thoughtful and had many helpful suggestions. He is customer-focused and tried to accommodate all of my requests. Value for money and would definitely recommend him 10/10"
> — Anonymous (5.0, via Checkatrade)

> "Inout was great! He was really helpful and a great communicator prior to the job. He worked really heard. Very efficient. The paint work looks great very happy I would use again"
> — Anonymous (4.8, via Checkatrade)

## Trades
Builder, Concrete contractor, Extension / renovation contractor

## Independent verification
_What MyTrustedTraders independently checked for this business (verified items only):_
- Review volume: MTT is showing 3 public reviews on this profile. (via MyTrustedTraders public listing)
- Public listing spread: MTT is showing 2 public listings for this trader. (via MyTrustedTraders public listing)
- Business identity: MTT is showing public business identity data with operating status unknown. (via MyTrustedTraders public listing)

Full verification checklist: https://mytrustedtraders.com/traders/sigma-building/checks

## Credentials & sources
- Credentials shown: 0
- Companies House status: unknown
- Evidence from: Checkatrade, Companies House
- Public evidence last checked May 2026

## 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.

---
Source: MyTrustedTraders — https://mytrustedtraders.com/traders/sigma-building
Real public evidence only: every figure traces to a named source and is cross-checked. If a source does not carry a field, it is not shown.