“Used this company a couple of times now and would definitely recommend to others. Very friendly, punctual and professional. I am really happy with the work completed and the cost was far cheaper than all the other quotes I got. 👍👍👍”
Public evidence profile
Thermashield Windows & Maintenance Limited
Credentials & registries
TrustATrader Approved
No Trust Score yet
- Rated 5.0 from 26 reviews
- Reviewed 6 months ago
Based on rating, review volume, independent sources and credential evidence. Evidence context, not a guarantee of workmanship.
Trust at a glance
1 thing checkedWhat we can verify about Thermashield Windows & Maintenance Limited
Each card sums up one thing we can check from public sources. Open it for the full detail and the named source. This is evidence context, not a guarantee.
See the full verification checklist for Thermashield Windows & Maintenance Limited →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.
5.0out of 5
Where these reviews are published
- TrustATrader26 reviews · 5.0 avg
Highlights
“Ronnie and his team were very professional from the quote to the work completion .I would recommend this company to my friends and family and if need any other work done this company will be the first I call .”
“As a retired architect they are one of the best contractors I have worked with.”
Detailed reviews
These are the individual reviews we hold for Thermashield Windows & Maintenance Limited, including the highlights above. The 26 headline total is the review volume reported across public review sources.
New double glazed windows and doors. No hard sell, fair and honest price. Work carried out to planned timescale. Workers arrived on time, left no mess, were helpful and cheery. Very satisfied.
Highly recommended, no hard sell, good price, delighted with my new door.
Read the other 10 detailed reviews on this pageShow fewer reviews
Work carried out promptly and efficiently. Wouldn't hesitate to recommend this company.
I had windows replaced recently by Ronnie and his team, so had no hesitation in contacting him again for a replacement front door. As was the case with our windows, great selection, fantastic price and superb installation. Would absolutely recommend Thermashield for windows and doors.
Would highly recommend Thermashield. Excellent staff.
New PVC windows and doors fitted. First class quality product and installation work.
Workman was very efficient, tidied up after him leaving no mess.
I have used Thermashield many times over the past few years for jobs including double glazing, bi-fold doors, composite doors and various remedial works. Such an easy company to deal with, starting with the no pressure and honest initial discussions. Every time they have done a professional job of the highest quality. The fitters (who are actually time-served joiners) arrive on time, get the job done and leave with zero mess. Would 100% recommend this small business, it's beyond me why people would even think about using the big glazing companies.
We are very pleased with our new windows and doors which Thermashield installed recently. The work was carried out efficiently within four weeks of the initial visit and at a competitive price.
On this occassion I needed a kitchen window as part of a project. I went straight to Thermashied because they have done work for me before. As previously all aspects of the job were excellant. A particular mention to the installers who showed total respect to my property. The reason there is no picture is because my project has work going on around it and it would offer an injustice. This is the third time I have used this company each time while adapting my home design.
My windows were fitted quickly and professionally. Very pleased.
Fantastic company. Very happy with work installing new doors and windows.
Local context
Rated 5.0, above the local average for window / door fitters in Glasgow
Across 40 window / door fitters in Glasgow, 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 69 customer reviews on TrustATrader.
Respectful and tidy in your home: “tidied up after him leaving no mess.” · TrustATrader, 7 Jun 2023
“can't fault the quality and workmanship.” · TrustATrader, 18 Jan 2024
“First class quality product and installation work.” · TrustATrader, 13 Jun 2023
“found their work to be consistently of the highest quality.” · TrustATrader, 20 May 2022
Credentials and associations
1Credentials and memberships
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
- Source checked
- 26 Jun 2026
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
Business and public registers
Check dates vary by source. Where we hold a date, the check shows it.
About
Thermashield Windows & Maintenance Limited has been vetted and approved by TrustATrader. Covering Central Scotland
What this business says about itself
From their own website
What this business says about itself
- 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.
Completed work
3 photosPhotos listed as completed work
These photos were listed as completed work by the business or a public source. They do not verify workmanship.
Independent checks
About this business
How long they've really been tradingOperating since at least 2022 (4 years), according to an independent source, not just their own word.
Website online since2011First public review2022
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 Thermashield Windows & Maintenance Limited before you contact them.
Run Cowboy Checker →Good to know
Common questions about Thermashield Windows & Maintenance Limited
Is Thermashield Windows & Maintenance Limited a legitimate business?
Thermashield Windows & Maintenance Limited has 26 independent public reviews, rated 5 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 Thermashield Windows & Maintenance Limited?
Thermashield Windows & Maintenance Limited has 26 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 Thermashield Windows & Maintenance Limited's reviews are genuine?
Thermashield Windows & Maintenance Limited's 26 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 Thermashield Windows & Maintenance Limited qualified and accredited?
We hold 1 independently sourced credential for Thermashield Windows & Maintenance Limited, including TrustATrader Approved. 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.
When was Thermashield Windows & Maintenance Limited's website registered?
Thermashield Windows & Maintenance Limited's website has been online since 2011, according to the public domain registry. This dates the website, not necessarily when the business began trading.
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