How to Choose a Double Glazing Installer in Adelaide
To choose a double glazing installer in Adelaide, check that they are properly licensed and insured, that they inspect and measure your home before quoting rather than pricing over the phone, that the quote itemises glass spec, frame material and making-good, and that they offer a written product and workmanship warranty. The sales tactics to watch on the quote are today-only discounts, a single bundled price with no itemisation, an inflated energy-saving payback claim, and a large deposit demanded up front. Get at least 3 itemised quotes for the same scope so you can compare like with like and spot the outlier.
Key takeaways
- Confirm the installer is licensed, insured, and inspects your home before quoting.
- Insist on an itemised quote: glass spec, frame material, gas fill, and plaster and paint making-good.
- Get a written product and workmanship warranty, not a verbal promise.
- Watch for pressure tactics: today-only pricing, inflated payback claims, and big up-front deposits.
- Compare at least 3 quotes for the same scope so the cheapest corner-cutter stands out.
What to check before you hire
Start with the basics: is the installer licensed and carrying current public liability insurance, and will they show you both. Ask for recent local references and, ideally, addresses of Adelaide homes they have done so you can see the finish. A genuine operator with a track record answers these easily; hesitation is a signal.
Insist on a site inspection. Double glazing decisions depend on your frame depth, condition and window sizes, none of which can be judged over the phone. An installer who measures and inspects before quoting is the one whose price will hold, because they have seen what the job actually involves. A quote given without a visit is a guess, and guesses become variations later.
Then read the quote for detail. It should list the glass type (standard, Low-E, acoustic laminate), the frame material, whether argon fill is included, the number and size of windows, and critically the making-good of plaster and paint after the work. A quote missing those lines is hiding either scope or cost, and both come back to bite.
Sales tactics to watch on the quote
The today-only discount is the oldest trick in window sales. A price that is only valid if you sign on the spot is designed to stop you comparing quotes, which is exactly what you should do. A fair price is a fair price next week too. Any installer pressuring you to sign before you have shopped around is prioritising their close over your decision.
Watch the payback claim. If the pitch leans on double glazing paying for itself in energy savings in 5 or 6 years, be sceptical, because on Adelaide power prices honest energy-only payback usually runs 15 years or more. Ask what annual saving and power usage that claim assumes and check it against your own bills. An inflated saving is a sign the whole pitch is stretched.
Watch the deposit and the bundling. A large up-front deposit (more than a modest, reasonable percentage) puts your money at risk before work starts. And a single lump-sum price with no breakdown makes it impossible to see whether they have quietly used standard glass instead of Low-E or dropped the making-good. Insist on itemisation and a sensible payment schedule tied to progress.
Comparing quotes the right way
Get at least 3 quotes, and make sure each prices the same scope: same windows, same glass spec, same frame material, same making-good. If you let each installer quote a different spec, the numbers are not comparable and the cheapest may simply be the one who assumed the least. Give each a consistent brief so the comparison is fair.
When a quote comes in dramatically lower, find out why before you celebrate. Common reasons are standard glass instead of Low-E, a thinner or lower-grade unit, no argon fill, or making-good excluded so the plaster and paint repair lands as a surprise cost afterward. The lowest headline number is often the most expensive job once those gaps surface.
The right installer is licensed, inspects before quoting, itemises the spec, warrants the work in writing, and does not pressure you to sign. We connect you with vetted local specialists who meet those standards, so you can compare quotes on equal terms and choose on genuine value rather than a discount clock.
Ready to get real numbers? Compare 3 free quotes from vetted Adelaide specialists for double glazing.
Frequently asked questions
They are licensed and insured, they inspect and measure your home before quoting, they give an itemised written quote and warranty, and they do not pressure you to sign on the spot. Recent local references and the ability to show finished Adelaide jobs are strong signs.
Today-only discounts, a single bundled price with no itemisation, inflated energy-saving payback claims, and large up-front deposits. Each is designed to stop you comparing quotes or to hide a cut corner, so treat them as warnings.
At least 3, each priced for the same scope, glass spec and making-good. Comparing like with like is the only way to tell whether a low quote is genuine value or is quietly leaving out Low-E glass, argon fill or the plaster repair.