“Gregg was a pleasure to deal with, kept me fully informed throughout the process of ordering and replacing a blown double glazed unit. Left no mess, was polite and competent. The price quoted was the price invoiced. Would highly recommend.”
Public evidence profile · Checked March 2026
Window Wizard Double Glazing Repairs Ltd
Credentials & registries
2 credentials shown
No Trust Score yet
- Rated 4.9 from 1,093 reviews
- 11 reviews in the last 12 months
Based on rating, review volume, independent sources and credential evidence. Evidence context, not a guarantee of workmanship.
Reviews · public evidence
What customers say
These reviews are published independently on the named public source below, not testimonials this business 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.
4.9out of 5
Customers often mention
Where these reviews are published
- TrustATrader1,093 reviews · 4.9 avg
Highlights
“Gregg was very responsive to my initial approach and after my providing him with some photos and additional information he was able to cost the work, subject to a site visit. He turned up exactly as he said and completed the work swiftly and to a good standard. I found him very helpful and if the need arises would certainly use his services again.”
“Greg was very helpful when I called to enquire if he could help me with a broken double glazed window lock. I explained I was unable to secure the window and Greg arranged to come out late today (his last working day before Xmas) to ensure we were safe. He was friendly and changed the lock in a very efficient and timely manner and also checked another lock for me. I would have no hesitation in recommending him to friends and family.”
Detailed reviews
on 5th May 2026
on 14th April 2026
Good honest friendly and prompt service
Gregg was super helpful in organising a prompt appointment, was able to fix the problems quickly and was very friendly and helpful. Highly recommended 😊
Very professional at their work and friendly.
Read the other 10 detailed reviews on this pageShow fewer reviews
Fast response from quote to installation. Professional job, very happy
Lovely guys, very reliable and professional and good value, would always recommend them.
Absolutely excellent all round, supply service and fit. Good proper tradesman. Would thoroughly recommend this company.
Gregg did some excellent work to replace some damaged double glazing and handles. Prices quoted were very reasonable and the work was carried out on the agreed day and time to a very high standard. Gregg also provided excellent advice about replacement glazing and even advised against doing something which would have cost me more but wasn't worth it in his opinion. Very honest and extremely professional. I would have absolutely no hesitation in recommending this company. Top marks from me!
Gregg and Bryn formulate an excellent team, replaced 6 blown units which were fitted back in 2000, highly recommended.
Gregg and Bryn arrived on time, both offered to remove their footwear. I needed two handles to be replaced on separate windows. They ensured they matched. They also replaced the seal on our composite front door which had split. Gregg and Bryn did an excellent job. They were both really polite and friendly and would definetly use Window Wizard again. We would highly recommend this company.
Great service with value for money. Great guys, have used their service twice and recommended them to many friends.
Very professional, gave a quote very quickly with great customer service. Arrived for installation at the agreed time and did a fantastic job. Nothing negative to review.
A great job sorted the front door.
Greg was very helpful in replacing 3 windows that had blown, replacing a hinge on one and realigning my front door. Great job, would definitely recommend.
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Local context
Rated 4.9, in line with the local average for window / door fitters in Luton
Across 22 window / door fitters in Luton, the typical rating is 4.8 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.
From customer reviews
What customers consistently say
Recurring themes from 150 customer reviews on TrustATrader.
Customers who keep coming back: “have used their service twice and recommended them to many friends.” · TrustATrader, 10 Jun 2025
Respectful and tidy in your home: “left everything tidy.” · TrustATrader, 18 Nov 2025
“kept me fully informed throughout the process of ordering and replacing a blown double glazed unit.” · TrustATrader, 5 Mar 2026
“Absolutely fantastic service, communication and workmanship!” · TrustATrader, 23 Oct 2025
“Quick response, good communication, super friendly and trustworthy.” · TrustATrader, 21 Oct 2024
“He turned up exactly as he said” · TrustATrader, 10 Feb 2026
“within a few days they arrived on time and completed the repairs” · TrustATrader, 18 Nov 2025
“Gregg and Bryn arrived on time” · TrustATrader, 17 Jun 2025
“completed the work swiftly and to a good standard.” · TrustATrader, 10 Feb 2026
“work was carried out on the agreed day and time to a very high standard.” · TrustATrader, 2 Sept 2025
“Gregg and Bryn did an excellent job.” · TrustATrader, 17 Jun 2025
Credentials and checks
Credentials, licences and vetting
Credentials and associations
2Credentials and memberships
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
- Source checked
- 26 Jun 2026
- Source checked
- 26 Jun 2026
From TrustATrader
TrustATrader profile facts
Insurance listed on TrustATrader:
- Source-listed cover: Double Glazing, Direct Line; verified 3 Nov 2025
This information comes from their TrustATrader profile. Confirm current cover, membership, and job terms directly before hiring.
Sources
2 named public sourcesWhere this information comes from
Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.
Review sources
Registers and membership directories
Public evidence last checked March 2026
About
Window Wizard Double Glazing Repairs Ltd has been vetted and approved by TrustATrader. Covering Bedfordshire . Hertfordshire . Buckinghamshire . All surrounding areas .
What this business says about itself
From their own website
What this business says about itself
- Areas served: Luton, Dunstable, Harpenden, St Albans, Hemel Hempstead, Leighton Buzzard, Milton Keynes, Bedford
- Good to know: Free quotes
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 tradingOperating since at least 2007 (19 years), according to an independent source, not just their own word.
First public review2007Website online since2023
Your own checks
What to check before you hire
Worth checking yourself
Always confirm credentials and quotes with the business directly before hiring.
Be wary of high-pressure 'today-only' discounts and a salesperson who won't leave. A reputable window or door firm gives you a written, itemised quote you can take away and compare against others.
Never pay the full price up front; a modest deposit with the balance on completion is normal. Ask what deposit protection or insurance-backed guarantee you get if the firm stops trading before fitting.
Get the specification in writing (frame material, the glazing units and their energy rating, and any trickle vents) so you can check you got what you paid for.
Want an extra legitimacy check? Run the Cowboy Checker on Window Wizard Double Glazing Repairs Ltd before you contact them.
Run Cowboy Checker →Good to know
Common questions about Window Wizard Double Glazing Repairs Ltd
Is Window Wizard Double Glazing Repairs Ltd a legitimate business?
Window Wizard Double Glazing Repairs Ltd has 1,093 independent public reviews, rated 4.9 out of 5. This is independent public evidence gathered from named public sources (no ads, no paid placement), not a guarantee of workmanship. If anything here is out of date, the business can request a correction.
What do customers say about Window Wizard Double Glazing Repairs Ltd?
Window Wizard Double Glazing Repairs Ltd has 1,093 public reviews, averaging 4.9 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How do I know Window Wizard Double Glazing Repairs Ltd's reviews are genuine?
Window Wizard Double Glazing Repairs Ltd's 1,093 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.
Has Window Wizard Double Glazing Repairs Ltd had recent public reviews?
Window Wizard Double Glazing Repairs Ltd has 11 public reviews dated within the last 12 months. That shows their review history includes recent feedback; it does not prove current availability, so confirm capacity before hiring.
Is Window Wizard Double Glazing Repairs Ltd qualified and accredited?
We hold 2 independently sourced credentials for Window Wizard Double Glazing Repairs Ltd, including TrustATrader Approved, Public liability insurance (verified by TrustATrader). Each is attributed to the body that issued it in the credentials section. For example, TrustATrader Approved is TrustATrader's approved badge: awarded after it vets the trader's identity and background.
What areas does Window Wizard Double Glazing Repairs Ltd cover?
They state on their own website that they cover Luton, Dunstable, Harpenden, St Albans, Hemel Hempstead, Leighton Buzzard, Milton Keynes, Bedford. This is the business's own statement on their website, not something we have independently checked. Confirm they cover your postcode before booking.
When was Window Wizard Double Glazing Repairs Ltd's website registered?
Window Wizard Double Glazing Repairs Ltd's website has been online since 2023, according to the public domain registry. This dates the website, not necessarily when the business began trading.
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