Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from GUARANTEED ALUMINUM & VINYL. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$4,000 – $11,000
Typical exterior project around $7,500
Guaranteed Aluminum & Vinyl is a Lowell shop that fabricates and installs aluminum and vinyl windows, doors, and screens — the call people make for a single cracked pane as often as a full house of replacements. The company describes itself, in its Better Business Bureau profile, as founded in 1960 and run by owner Richard R. Morin with a staff of four; its website separately says it has 60 years in business. Turnaround speed comes up again and again. In 2022, one reviewer dropped off a broken window pane at 8:15am on a Saturday and had it repaired and cleaned by 10:30am, for the price quoted over the phone. Quick glass and screen turnarounds show up in reviews from 2022 through 2024, and in 2023 one reviewer had 11 windows and a slider replaced — permits handled — in about four hours. On pricing, several reviewers call it fair or better than competitors; a 2023 review put a four-screen and sliding-door-screen job at about half the price of other companies. The owner and staff are described as friendly and knowledgeable across several years of reviews, and a 2023 reviewer said they'd been a customer since 1991. The same speed has come with some rough edges. A 2025 reviewer said staff wrote down the wrong window measurement and then blamed the customer rather than owning the mistake. The most recent review, from August 2026, said a repaired window panel came back dirty with rust still on the bottom of the frame, with no warning about it. A 2022 reviewer said the company turned down an 8-window job by email — citing that it wasn't going to drive out for what it called "2 windows" — despite the customer living 15 miles away. And a 2021 reviewer who'd had 30 windows installed said cracks appeared in the frames of 10 of them about six months later, and that the owner told them they were on their own. Guaranteed Aluminum & Vinyl looks like a strong call for glass, screen, and window-replacement jobs where speed matters — but get measurements confirmed in writing, and ask upfront what happens if something needs a callback after the job is done.
We never had a glass replaced on our window panel before.. but for this business to give us our window panel back dirty and still rust on the bottom of the frame, Atleast warn us. We would of cleaned it before handing it to a" professional"! .
Very friendly and customer oriented.
Good service and knowledgeable!!!
The quality of the windows are perfect but when I gave a measurement they didn't listen they wrote the wrong size down but they're quick to blame the customer but not for their mistakes and not taking credit for their screw up. I should have known that it was a bad business when they give me a price of $1,000 for each window I ordered two of them and it ended up costing me $1,300 a piece when the price was guaranteed and I spoke with the owner and then all he says is I don't remember talking to you so I think he he might have beginning stage of Alzheimer's because he can't remember too well. And the only reason why I'm giving two stars is for the window the remaining that they would have received would have been for their business but poorly ran I don't care if he's been in business for 30 years he just doesn't care about the customers and that's bad business
Fantastic service and a quick turnaround, I am very happy. With my new screens!
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2 changes recorded — last scanned Sep 22, 2026.
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43 years in businessNot yet rated