Avanti Windows Ltd
Credentials & registries
1 credential shown
Companies House
Active incorporated business
Trust score
51out of 100
Rating5.0★
Review volumeLow · 3
Evidence breadth1 independent public source
Credentials1 credential shown
1 credential shown
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
Trust at a glance
2 checksWhat we can verify about Avanti Windows Ltd
Each card summarises one evidence dimension from public sources — open it for the full detail and named source. This is evidence context, not a guarantee.
Credentials & registries1 credential shownSee detail →Companies HouseActive incorporated businessSee detail →
See the full verification checklist for Avanti Windows Ltd →Reviews · public evidence
What customers say
These reviews are published independently on the named public source below — not testimonials this trader chose to show. We bring them together and link each one back to where it appeared, so you can open the source and read it yourself.
5.0out of 5
Highlights
"Fantastic Job done by Avanti from start to finish. From initial sale to the finished product Avanti were fantastic. Richard who came out originally was very conscientious and covered every detail. The fitting team were fantastic and seemed to be very Knowledgeable. They are a Credit to the company. The office staff were a pleasure to deal with and whenever we had a query they answered our questions and always made us feel at ease. I am so so happy with the end result and I will be recommending Avanti to my friends and family."
"3 and a bit days and what a transformation. Avanti have taken our tired looking ex council house and made it a home to be proud of again. From the very first enquiry to completion we have been so impressed with Avanti. The quote was really competitive, and the professionalism from each and every person involved was outstanding. Would recommend in a heartbeat and will definitely use them again."
"Excellent product quality and professional fitting. Highly recommend!"
Detailed reviews
Fantastic Job done by Avanti from start to finish. From initial sale to the finished product Avanti were fantastic. Richard who came out originally was very conscientious and covered every detail. The fitting team were fantastic and seemed to be very Knowledgeable. They are a Credit to the company. The office staff were a pleasure to deal with and whenever we had a query they answered our questions and always made us feel at ease. I am so so happy with the end result and I will be recommending Avanti to my friends and family.
3 and a bit days and what a transformation. Avanti have taken our tired looking ex council house and made it a home to be proud of again. From the very first enquiry to completion we have been so impressed with Avanti. The quote was really competitive, and the professionalism from each and every person involved was outstanding. Would recommend in a heartbeat and will definitely use them again.
Excellent product quality and professional fitting. Highly recommend!
Credentials and associations
1Credentials and memberships
Official or controlled checks carry the strongest weight here. Listed, missing, and ambiguous evidence stays visibly weaker than a verified pass.
Companies House registration
ActiveActive incorporated business
Avanti Windows Ltd is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.
Legal nameAvanti Windows Ltd
Company number02214699
Incorporated
Registered activityGlazing
Official checkOn the public register
Why this helps you judge trust: this trader is linked to a registered company with named people who are legally accountable for it, on an official register anyone can check — a layer of accountability an unregistered trader doesn't offer. Around 38 years on the register also points to an established business rather than a brand-new one.
Open Companies House entry (opens in new tab)Sources
1 named public sourceEvery signal, traced to its origin
Review sources
Public evidence last checked May 2026
About
In Grantham, Lincolnshire.
What this business says about itself
From their own website
What this business says about itself
See their work: Photo gallery (opens in new tab) · Facebook (opens in new tab)
Online since 2004. Their website domain was first registered in 2004, according to the public domain registry — an independent sign of how long they’ve been operating online (we checked this ourselves, it’s not a claim from their site).
- Areas served: Grantham
- Good to know: Family-run · Fixed pricing
These are statements the business makes on its own website — worth confirming in writing (and on the official registers) before you hire, not independently verified by us.
Independent checks
About this business
How long they've really been tradingIndependent sources agree they've been operating since at least 1988 — that's 38 years, confirmed across 3 separate sources.
Company registered1988Website online since2004First public review2021
Check them yourself
What to check before you hire
Worth checking yourself
Review volume: Low · 3
Evidence breadth: 1 independent public source
Want an extra legitimacy check? Run the Cowboy Checker on Avanti Windows Ltd before you contact them.
Run Cowboy Checker →Good to know
Common questions about Avanti Windows Ltd
What do customers say about Avanti Windows Ltd?
Avanti Windows Ltd has 3 public reviews, averaging 5 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How do I know Avanti Windows Ltd's reviews are genuine?
Avanti Windows Ltd's 3 public reviews come from a named public review source, and MyTrustedTraders links every one back to where it was published — so you can open the source and read them yourself rather than trusting a single curated 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 Avanti Windows Ltd qualified and accredited?
We hold 1 independently sourced credential for Avanti Windows Ltd, including FENSA. Each is attributed to the body that issued it in the credentials section. For example, FENSA is the competent-person scheme for replacement windows and doors, self-certifying they meet building regulations.
Is Avanti Windows Ltd a registered business?
Avanti Windows Ltd is a registered business on Companies House (company number 02214699), incorporated 27 Jan 1988, listed as active. This confirms the legal registration of the business — not evidence of workmanship or service quality.
What areas does Avanti Windows Ltd cover?
They state on their own website that they cover Grantham. This is the business's own statement on their website, not something we have independently checked. Confirm they cover your postcode before booking.
How long has Avanti Windows Ltd been trading?
Avanti Windows Ltd's website has been online since 2004, according to the public domain registry — an independent marker of how long they have been established.
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