We start with a free home assessment: an hour at your place, where we’ll hear what’s bothering you, look at how the sun hits your rooms and where the noise gets in, and talk you through your options.
Together we’ll make a plan: which windows and doors to do, which rooms to leave for later, what frames and glass suit each, and what it’ll cost.
START WITH WHAT IS BOTHERING YOU
The right window or door depends on the problem you’re solving. We start with what’s happening in your home and what you want to achieve. Whichever of these sounds most like your place is where we’d begin.
THE PROBLEM
Blinds shut, aircon flat out, and by mid-afternoon it’s still cooking. Come winter, the warmth vanishes the second the heater’s off. It’s uncomfortable to live in, and every month it quietly pads your power bill.
THE FIX
With double glazing, we can keep your house at a steady temperature and give the aircon a rest. We’ll use low-E glass and insulating uPVC frames to keep summer heat out and winter warmth in. This is standard on every window, with the option to add a solar-control tint for rooms that cop the afternoon sun.
THE PROBLEM
The party next door at 2:30 am when you’re up at 6 for a shift. The freeway you hear from bed. Curtains and roller shutters don’t block it, and the sleep you lose follows you into work and home the next day.
THE FIX
With double glazing, when there is noise outside, you’ll be able to sleep through it, work through it, and switch off at the end of the day. We’ll use acoustic glass to achieve this – a denser pane in the sealed unit – which stops sound before it reaches the room. Busy roads and flight paths get a heavier laminated unit to stop the noise.
THE PROBLEM
When a storm hits, old single-glazed windows feel like they’re barely there. And that flicker of doubt – would the house actually hold up to the weather or to someone at the door – sits at the back of your mind.
THE FIX
With double glazing, your home stays secure, and you can stop second-guessing whether your glass will hold up. Multi-point locks and toughened safety glass are far harder to force than single glazing and are built to take a hit – we can step up to laminated glass in storm zones, and we can install security screens to really secure your home.
IT's NOT ALL THE SAME
Two windows can both be “double glazed” and perform completely differently.
The glass, the gap between the panes, the frame, the seals, the style and the quality of the install all change the result.
Your home changes things as well – how each room faces the sun, and where the heat or noise is coming from – these all have an impact.
You don’t just need “double glazing” – you need “double glazing” with the right specification that fits your home and is designed for the result you want, so you don’t overspend or fall short.
WINDOW A
"Double glazed"
WINDOW B
"Double glazed"
Glass
4mm float, both panes
Glass
6.38mm laminated + low-E
Gap between panes
6mm air
Gap between panes
16mm argon-filled
Frame
Conductive, single-chamber
Frame
uPVC, multi-chamber
Seals
Brush seals
Seals
Double compression gaskets
The install
Siliconed into the old gap
The install
Square, sealed and insulated
Same label. Completely different result. Your home decides which one is right.
Working out what specific specification you need isn’t something you should have to do on your own, and it’s exactly what the free home assessment is for.
We come to you, find which windows and doors are actually driving the problem, explain the options that suit your home, and give you a measured, itemised quote.
Read on to learn how it works…
How it works
Here’s exactly what happens when we come out. No pitch, just a proper look at your home and clear advice you can act on.
1
Tell us what's happening
Show us the rooms, windows or doors you’re concerned about and what you’d like to improve.
2
We assess the property
We check the existing windows and doors, room layout, exposure, access and anything affecting the result.
3
We explain your options
We take you through the relevant frame, glass and configuration choices, including their pros, limits and cost differences.
4
We recommend what makes sense
We identify which areas to prioritise and recommend a solution based on the result you want, not the highest spec.
5
We measure and prepare your quote
We take the measurements on the day, then send you a clear, itemised proposal within two business days.
6
We follow up
A few days after your quote lands, we’ll give you a quick call to talk through your quote and answer any questions. No pressure, and no chasing.
What To Expect
It will take about an hour
This is how long we will be on site with you, on average, depending on the property and situation.
Quote in 2 business days
clear and itemised, measured on the day
Valid for 30 days
consider it in your own time
A Coastal adviser listens to what you want to achieve, reviews the relevant windows and doors, talks through your options, and takes the measurements needed to prepare your quote.
If anyone else is part of the decision, it’s worth having them there so everyone’s questions get answered at once, though it’s not essential.
No obligation, and no pressure to decide on the day.
What you'll understand afterwards
AFTER YOUR ASSESSMENT, YOU'LL KNOW
Plus your itemised quote in writing, within two business days.
Experienced advice based on your home, not a standard package.
We bring 35+ years of hands-on founder experience, plus a real feel for Perth homes, our climate and the products that suit them. We start with the result you want, look at your property, then recommend the windows, doors and glass we’d be happy to fit in our own home.
Built for Perth homes
Perth's heat, sun exposure and the way local homes are built are all factored into what we recommend for your place.
Installation know-how
We plan how each window and door will fit the home you already have, not just which product goes into the opening.
Recommended, not sold
Every recommendation is matched to the problem you want solved in your home, not to a sales target we need to hit.
German uPVC, made here
German-engineered uPVC systems, manufactured right here in Perth and paired with Perth-made Tough Glass.
GUARANTEE & WARRANTY
Once you know what your home needs, you want confidence that it’ll be supplied and installed properly. We make clear commitments from quote to installation. Here are some of the reasons you should choose us.
Install-Date Guarantee
INSTALLED IN 6-8 WEEKS, OR WE PAY YOU
The clock starts on the day your deposit is received and ends on the day we complete your installation at your home. If we run over, you get 1% of your invoice back for every week we’re late, capped at 10%.
Covers standard colours. The clock pauses for customer-caused delays or anything outside our control.
10-Year Written Warranty
PRODUCT, WORKMANSHIP & HARDWARE WARRANTY
Your windows & doors are covered for a full 10 years – the product, the workmanship & the hardware, all under one warranty, so there’s only ever one place to call. If anything goes wrong, we come back & put it right.
One cover to rely on, backed in writing like everything else we promise.
Fixed Price in Writing
Your quote sets out the products, specifications, scope and costs before you commit. What you sign is what you pay.
Specified for Your Home
Every quote is built around your rooms, your exposure and the result you're after. No spec or upsells you don't need.
One Job, One Manager
The same installation manager runs your project start to finish, accountable for coordination, quality and keeping you informed.
Made & Glazed in Perth
Kömmerling frames and Tough Glass, both manufactured here. Shorter lead times, local support, and a team in your city if you ever need us.
WHO YOU'LL BE DEALING WITH
Coastal Double Glazing is a new Perth name, but the team behind it isn’t new to double glazing – between us, we’ve fitted it in WA homes for more than 35 years. Every job is premium Kömmerling uPVC and Australian-made Tough Glass, matched to your home and built for Perth’s climate. We put your installation time in writing and stand behind it; our installations manager is on-site for every job, ensuring the highest quality work, built to last.
Coastal Double Glazing is a new Perth name, but the team behind it isn’t new to double glazing – between us, we’ve fitted it in WA homes for more than 35 years.
Every job is premium Kömmerling uPVC and Australian-made Tough Glass, matched to your home and built for Perth’s climate.
We put your installation time in writing and stand behind it; our installations manager is on-site for every job, ensuring the highest quality work, built to last.
Nathan
Installations Manager
Runs production and is on site every install day to check the work and confirm you’re happy.
Holly
Relationship Manager
Your first point of contact – handles your enquiry and your quote, straight answers, no back-and-forth.
OUR RANGE
Whatever the style, it’s the same German-engineered Kömmerling uPVC frame and Perth-made Tough Glass underneath – we can help with double glazing, whether it’s a retrofit or new build, from one frame to a full house.
Windows
Every opening style in uPVC, sized to your existing frames – retrofit or new build
Doors
Entry doors, patio doors and big glazed openings, all multi-point locked as standard.
Optional Extras
Finishing touches and add-ons we can build into your quote.
Don’t see what you’re looking for?
If it’s a window or door, we can almost certainly build it on this system – ask at your free home assessment.
A smooth installation
STEP ONE
You’ve had time with the quote, you’re happy with the scope and the price, and you let us know you’d like to proceed.
STEP TWO
Before anything is made, we come back out and confirm every measurement, specification and access detail. Getting this right is why your windows fit properly.
STEP THREE
Manufactured here in Perth to your exact measurements. This is the part that takes the time, and it’s why we can put a 6 to 8 week guarantee behind it.
STEP FOUR
We’ll agree a date that suits you and tell you exactly how to prepare. Usually that just means clearing the areas around the windows.
STEP FIVE
We take the old ones out, fit the new ones, and check every window and door opens, closes and seals the way it should before we call it done.
STEP SIX
The old windows and doors go with us at no extra charge. We’ll show you how everything works, run through the maintenance, and hand you your warranty.
FAQS
Everything you might be wondering before you enquire.
Yes. We visit, discuss what you want to improve, assess the relevant windows and doors and measure for your quote. No obligation.
Perth and regional WA, the full metro area north and south, including down to Mandurah. We regularly take on regional WA projects too, so if you’re further out, just ask.
No. We explain the relevant frame, glass and window or door options based on your home, priorities and budget.
Not necessarily. It depends on what you’re trying to achieve and which areas are causing the problem. We’ll discuss priorities and whether staging makes sense.
Yes. Where it suits, we help you prioritise which windows or rooms to do first and stage the rest across later visits.
Payment is staged across four points: 30% deposit when you place your order, 30% at check measure, 30% two business days before installation, and the final 10% on completion. Your windows and doors are manufactured to your exact measurements and can’t be used on another job, which is why payment is staged this way. It’s the standard schedule for supply and install work, and the full breakdown is set out in your quote before you commit. No hidden costs.
Yes. Removing your existing windows and doors is part of the installation. We take them away and dispose of them at no extra charge, and leave the areas tidy.
We work room by room, protect your floors and furnishings, and clean up before we leave. How long we’re on site depends on the size of your project, and you don’t need to be home while we work as long as we can get access to the property.
No system guarantees silence. The result depends on the type and source of the noise, the glass and frame, the seals, the install and other paths the sound takes. We’ll tell you what’s realistic for your home.
It reduces heat transfer through the windows, but the overall result also depends on glass choice, sun exposure, shading and insulation. We assess all of it before recommending.
Yes. We supply and install both, in any style, including hinged, French, sliding, stacker and tilt-and-turn doors, and awning, casement, sliding, tilt-and-turn and fixed windows.
Yes. We fit Kömmerling uPVC systems, designed by the German company behind the modern uPVC window and manufactured here in Perth, glazed with Perth-made Tough Glass. European engineering, local manufacturing and local support.
Simply replacing your old or existing windows and doors with new double-glazed uPVC ones, no rebuild needed. We do retrofits and new builds, from a single frame to a whole house.
About an hour, depending on the property and how many windows or doors are involved. We send your itemised quote within two business days.
None.
Get started
You don’t need to choose the glass, frames or specs before you contact us. Tell us what you want to improve, and we’ll assess your home, explain the options, give you a clear recommendation and quote.
No obligation. No pressure. We’ll call within 1 business day. Prefer to talk now? Call 1300 079 012
To contact us, simply fill out the form. If you need a faster response, call us at 1300 079 012 to speak with our team. We look forward to assisting you.
Name
Coastal Double Glazing
Address
55 Salvado Rd, Subiaco WA 6008
Opening Hours
Mon - Fri: 9:00 AM - 5:00 PM
Fill in the form to get in touch. If you need a faster response, call us at 1300 079 012 to speak with our team.
