“Great communication. Fast response. Great advice and quality of work.”
Public evidence profile
WindowTec
No Trust Score yet
- Rated 4.8 from 43 reviews
- 6 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.
4.8out of 5
Often reviewed for
Customers often mention
Where these reviews are published
- Checkatrade43 reviews · 4.8 avg
Highlights
“Good job by David and his mate. Carried out job efficiently and at a fair price. Would recommend this company.”
“I had Windowtec service & repair the windows in my flat 2 years ago & they did a great job for a fair price. When we bought a new house with some blown glass and unsafe windows I contacted them immediately. They quickly arranged to come and look at the job and provided me with a great quote. Only a week after accepting the quote, the guys showed up and quickly got to work. In just an hour they’d replaced the glass on the conservatory doors and added safety latches to all of the upstairs windows. The conservatory doors were tough to open but as part of their service they fixed that too!”
Detailed reviews
These are the individual reviews we hold for WindowTec, including the highlights above. The 43 headline total is the review volume reported across public review sources.
Verified by CheckatradeUPVC Repair - Bearsden
Did what they said they would do when they said they would do it - to a high quality. You can't really ask for more. No problems in recommending WindowTec or using again in the future.
double glazing window adjustment
I noticed my kitchen window was sealed correctly and was at a slant. I contacted windowtec and they were able to come out within a week. They saw the window, gave me a quote and fixed the window within 30 minutes. I would definitely use them again for any double glazing repairs.
Verified by CheckatradeLocks on patio doors can be repaired.
Excellent service from David Muldoon WindowTec. He and Lewis arrived when they said they would and quickly and efficiently repaired the lock on my patio door. I would recommend this company for a good knowledge of their trade.
Verified by Checkatradewindow repair
David & Lewis from WindowTec replaced the hinge in aluminium window. The work seems excellent and price was very reasonable. Communication and reliability were great. They were a pleasure to work with and would highly recommend
Verified by CheckatradeWindow hinge replacement
Very easy to communicate with via the app. Visited my property promptly to visit and view the job and provide quotation and then very flexible to fit in the repair of my window.
Read the other 10 detailed reviews on this pageShow fewer reviews
Verified by Checkatrade
Following an attempted break-in, they responded promptly to our request for help. They arrived when they said they would and made temporary repairs. They gave advice on how we could achieve the best security on our door locks without spending more money than was necessary. They provided prompt quotes for this upgrade and, using a clever on-line system, we were able to accept the quote quickly and allow the parts to be ordered. Once the new locks were available they fitted them within 24hrs. They were friendly and super helpful and are a local company based in Kirkintilloch.
Verified by Checkatrade
The work was carried out efficiently and promptly. We are very pleased with the result and would use the company again
Can't praise this company enough from start to finish it was seamless..reasonable pricing for good quality stuff ...communication from leigh in the off and from davie and Lewis on the job was second to none ...guys were pleasant and professional always tidying up after themselves .left a first class job for us ... thanks window tec team ....ps the guys like a pie or sausage roll lol 😆...
Verified by CheckatradeWindow repair - hinges broken
I would avoid at all costs. Phoned on Friday to ask for someone to come out, agreed the Wednesday but when I called around 4pm they said they had the wrong number for me. Agreed Friday morning 9am for a rescheduled visit and nothing, no call or visit. AVOID.
Verified by Checkatrade
Job was carried out very well. We had a few teething problems and when called back always turned up and rectified all issues. Everything has been carried out to a good standard. I would recommend this company.
Verified by Checkatrade2 double glazed windows supplied and fitted.
Window tech-Recently supplied and installed 2 double glazed windows. The service I received was punctual, friendly and the job was first class. The cost was reasonable as well. I would use their services again and would recommend them to anyone looking for a professional glazier.
Verified by CheckatradeConservatory repair
The team at WindowTec were great with us. They phoned to discuss the job within a day of the job being posted and came out the next day to view the job. We received an acceptable quote the same day and we agreed to the job soon after. The guys arrived and fixed our problem and were great in explaining the issue and solutions throughout. Really happy with the work and price of the fix and would happily recommend WindowTec.
Verified by CheckatradeRepair of double glazed windows
Communication was good, workmanship was good as problem was resolved.
Verified by CheckatradeReplaced blown window panels in double glazing
Always on time. Helpful and polite. Would thoroughly recommend"
Verified by CheckatradeFront Door Repair
Davie arrived at our agreed time and manage to repair the locking mechanism which was fantastic as this saved us replacing the full door and made our 83 year old mum happy that her door was secure. Great job and at a very reasonable price.
Local context
Rated 4.8, in line with 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 43 customer reviews on Checkatrade.
“they came out the next day on time as agreed.” · Checkatrade, 18 Aug 2025
“arrived when they said they would” · Checkatrade, 12 May 2025
“They arrived when they said they would” · Checkatrade, 21 Feb 2025
Sources
1 named public sourceWhere 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
Check dates vary by source. Where we hold a date, the check shows it.
About
Windows / doors / conservatories in Glasgow.
Services they list
Aluminium Doors RepairAluminium Windows RepairBay Windows InstallationBay Windows RepairBifold Doors RepairCat FlapsComposite Front Doors InstallationComposite Front Doors RepairConservatory Glass Heat Reduction FilmConservatory InstallationConservatory RepairsDog Flaps
Listed on public sources or the business's own website; check directly that they cover your job before you book.
Areas served
Glasgow
The areas they list covering on a public directory; confirm they cover your address before you book.
Independent checks
About this business
Steadily reviewed6 reviews in the last 12 months, in line with their long-term review pace of about 9 a year.
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 WindowTec before you contact them.
Run Cowboy Checker →Good to know
Common questions about WindowTec
Is WindowTec a legitimate business?
WindowTec has 43 independent public reviews, rated 4.8 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 WindowTec?
WindowTec has 43 public reviews, averaging 4.8 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How do I know WindowTec's reviews are genuine?
WindowTec's 43 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 WindowTec had recent public reviews?
WindowTec has 6 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.
What does WindowTec specialise in?
WindowTec lists specialist services including Aluminium Doors Repair, Aluminium Windows Repair, Bay Windows Installation, Bay Windows Repair, Bifold Doors Repair, Cat Flaps. If your job is one of these, look for it in their listed services or ask them to confirm for your project.
How long has WindowTec been trading?
WindowTec has been reviewed on public sources since 2021.
Braveheart Windows And Doors Ltd
36Trust ScoreBuilding a public recordout of 100
12 reviews
Carrick developments
30Trust ScoreBuilding a public recordout of 100
4 reviews (3 in the last 12 months)
Drovandi Doors
26Trust ScoreBuilding a public recordout of 100
1 review
Centiam Home Improvements
- Customers mention: came the same day (checkatrade)
Often reviewed for: Roofing
Known for: Tidy & clean · Friendly & polite · Professional
Wilz Windows
Free quotes · Family-run