Double glazing,
A-rated as standard.
Replacement double glazing in uPVC or aluminium, A-rated as standard, with low-emissivity glass and warm-edge spacers. Measured by our own surveyors and fitted across Suffolk and Essex by Admiral’s long-serving teams.
- Triple and acoustic glass too
- A written quote, no pressure
- Showroom in Ipswich
“We highly recommend this company if you want a 1st Class service at a very competitive price! Absolutely brilliant!”
“With so many window companies in the local area sometimes it can be hard to choose, but so glad we went with Admiral.”
The frames and glass we fit
- Halo
- REHAU
- Kömmerling
- Residence
- Smart
- Origin
- Cortizo
- Ecoglass
Warmer rooms, without changing the look.
Photos from Smart, one of the window makers we fit. A-rated double glazing comes as standard, whatever the style.
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Bright and warm
- Shown
- A wide white window over a kitchen sink
- Photo
- Smart Systems
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A stone cottage
- Shown
- Slim white casements in a stone wall
- Photo
- Smart Systems
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Leaded lights
- Shown
- White casements with leaded lights under a brick arch
- Photo
- Smart Systems
Product photos from the makers’ own brochures: Smart Systems. Our own recent jobs are under Recently fitted.
What makes it A-rated.
Two panes of glass sealed as one unit, a coating that turns warmth back into the room, and spacers that keep the edges warm.
- A low-emissivity coating reflects heat back into the room, while daylight still warms it
- Warm-edge spacers cut condensation and heat loss around the edges
- Strong, thermally efficient uPVC or aluminium frames around it
- Glass in partnership with Ecoglass, a family-owned glass specialist
U-values, in plain English.
The U-value says how much heat escapes through a window. The lower the number, the warmer the room and the lower the bills. Frames count as well as glass: it’s the whole window that’s rated.
- 1.4 W/m²K or better: what replacement windows in England must reach (or energy rating Band B). Everything we offer meets or beats it.
- 1.4 for extensions too: the same as a replacement. New homes may need better, depending on the design. Tell us early and we’ll quote to it.
- Below 1.0: possible with triple glazing and advanced systems.
Glass for every room, and every reason.
We recommend glass for each room by the way it faces, the noise outside and how you use it. Tick what matters in the quote and we’ll bring the options to your survey.
- Double glazing
- A-rated, energy-saving units as standard.
- Triple glazing
- Even less heat loss, for energy-conscious homes and exposed spots.
- Acoustic laminated glass
- Cuts traffic rumble and sharper noise like aircraft.
- Comfort Plus glass
- Extra security and less noise. One customer says it’s worth paying the extra for.
- Toughened safety glass
- Added strength and security where the glass is low or in a door.
- Solar control
- Less heat build-up in south-facing rooms.
- Obscure and decorative
- Textured, obscured or decorative glass for privacy and character.
- Secondary glazing
- Fitted inside your existing windows: warmth and quiet for listed buildings and conservation areas.
- Signs it’s time
- Draughts, condensation between the panes, stiff opening, worn seals or visible damage.
Choosing a double glazing company? Ask these six questions.
Ask them of everyone who quotes. Here are our answers.
Who measures, and who fits?
Our own surveyors measure every opening. Admiral’s long-serving fitting teams do the work, and customers name them in their reviews.
Will I get the price in writing?
Yes: a written quote to take away, with no pressure to sign on the day.
Can I see the windows first?
Yes. Full-size, working displays in our Ipswich showroom, with parking at the door.
What do other customers say?
4.9 from 224 Trustpilot reviews, none below four stars, and 4.9 on Google.
Can I spread the cost?
Yes: finance through Novuna at 12.9% APR representative, over 1 to 10 years.
What if something goes wrong later?
Call us. One customer’s lock was fixed under warranty within a couple of days of the call.
Recently fitted by our own crews.
Two recent double glazing jobs by our own fitters, from our Facebook page, and what went in.
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Flush casements and vertical sliders
- Fitted
- Halo System 10 mitre-jointed flush casements and Ecoslide vertical sliders
- Finish
- Smooth white, with 18 mm internal Georgian bars
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Bay and casement windows
- Fitted
- White uPVC windows, in bay and casement styles
- Glass
- Energy-efficient double glazing
Photos and product lists from Admiral’s Facebook posts, 2025 and 2026.
224 reviews. Not one below four stars.
Six about double glazing, as they were written. Admiral invites every customer to review on Trustpilot, good or bad.
4.9/5
Also rated 4.9 from 30 reviews on Google. Figures checked 19 October 2026.
- Double glazed windows
“Both Shaun and Carl were friendly and professional while fitting our new double glazed windows. They were thoughtful and tidy and cleared up behind themselves.”
Mr Patterson - Comfort Plus glass
“The windows and doors are great looking product fitted with comfort plus glass which I recommend you pay the extra for. The installers were very friendly and professional, everywhere was left clean and tidy.”
Julian Pyke - Warm and draught free
“We are very pleased with our new windows and doors which are smart, warm and draught free.”
Anne - In a day
“The team were quick and efficient, they spent a day doing the back of a 4 bedroom house. They were clean and tidy I have no complaints.”
Steven Bumstead - On time
“From the time that I placed the order they turned up on time to take the measurements. Until they fitted the windows.”
Jennifer Westley-Richards - Start to finish
“From query, to quote, to survey, to installation – the service received was beyond expectation.”
Marian
From first call to final clean-up.
Clear advice, a price in writing and our own team for the fitting. Four steps, at your pace.
Tell us what you need
Send the quote form, call us, or come and see every window style on display in our Ipswich showroom.
Free survey
One of our own surveyors measures every opening and talks you through frames, glass and styles. It costs nothing.
Your written quote
Take it away and decide in your own time. No pressure, and finance if you’d like to spread the cost.
Fitted by our crew
Made to measure and fitted by Admiral’s long-serving fitters, who clear up and take the old windows away.
Spread the cost. Over 1 to 10 years.
Finance through Novuna at 12.9% APR representative, on amounts from £500 to £25,000, with a 10% to 50% deposit.
There’s also a buy now, pay later plan at 14.9% APR, with your first payment put back 6 or 12 months. Finance is subject to status.
Your figure, not our price.
£100.54a month for 5 years
After a £500 deposit. Total payable £6,532.40, including £1,532.40 interest. An illustration only, not an offer of credit.
Representative example: cash price £8,000, deposit £3,000, amount of credit £5,000, 12 monthly payments of £444.70, total charge for credit £336.40, total amount payable £8,336.40. 12.9% APR representative.
Finance is subject to status. Admiral Home Improvements Ltd (FRN 1053043) is an Appointed Representative of Ipswich Trade Frames Ltd (FRN 794166), a credit broker, not a lender, which is authorised and regulated by the Financial Conduct Authority. Finance is provided by Novuna.
See every style before you choose.
Full-size, working displays of windows and doors in uPVC, aluminium and composite, with parking at the door. Book ahead and we’ll make sure an adviser is free.
Visit our Ipswich showroom
Monday to Friday, 7.30am to 4.30pm
- Monday to Friday
- 7.30am to 4.30pm
- Saturday and Sunday
- Closed
Hampstead House, Felixstowe Road, Nacton, Ipswich IP10 0DE. Parking right outside the door.
Questions people ask before they call.
Anything else? Request a quick callback or call 01473 659062 and ask us straight.
How much does double glazing cost?
Every window is made to measure, so the price depends on the number of windows, their size and style, the frames and the glass. One of our own surveyors measures every opening for free, and you get a written quote to take away. Finance is available at 12.9% APR representative.
Double or triple glazing?
Double glazing gives excellent warmth, quiet and value, which is why most homes choose it. Triple glazing cuts heat loss further, for energy-conscious homes or exposed spots. We’ll compare both for your house at your survey.
What is a U-value?
A number for how much heat escapes through the whole window, frame and glass together. Lower is better: 1.4 or below is what replacement windows in England must reach, and triple glazing can get below 1.0.
Will new double glazing cut the noise?
It helps, and acoustic laminated glass helps most, with traffic rumble and sharper noise like aircraft. Where the original windows must stay, secondary glazing on the inside adds a lot of quiet.
Why is there condensation between my panes?
It usually means the seal of the unit has failed, so it no longer insulates properly. It’s one of the common signs that it’s time for new glazing; draughts, stiff opening and worn seals are the others.
We live in a listed building or a conservation area.
Secondary glazing fits inside your existing windows, so the original structure stays as it is: it’s the usual choice for listed homes. Flush casements and sliding sashes look like traditional timber, and your council decides what’s allowed in a conservation area. We’ll tell you what’s likely to suit at your survey.
Who will fit my windows?
One of our own surveyors measures every opening first, then Admiral’s long-serving fitting teams do the installation. Customers often name them in their reviews.
Can I spread the cost?
Yes. Finance through Novuna at 12.9% APR representative, from £500 to £25,000 over 1 to 10 years, or buy now, pay later at 14.9% APR. Finance is subject to status. Try the calculator.
Which areas do you cover?
We fit double glazing across Suffolk and Essex, from our showroom in Ipswich. Put your postcode in the quote form and we’ll confirm.