Premium Double Glazing near you
Stop Losing Heat — Save Up to £465/Year on Energy Bills
Millions of UK homes have ageing double glazing that leaks heat and inflates bills. We replace it with premium A-rated windows — installed by local experts, no sales pressure, no fake discounts.
Takes 60 seconds · No obligation · 100% free
What local Homeowners Say
Real feedback from customers who chose Aldermist Windows.
“Our heating bills dropped noticeably within the first month. The fitters were punctual, tidy, and genuinely skilled. No hard sell at any stage — refreshing after our experience with a national chain.”
Sarah T., your area
uPVC double glazing, 6 windows
“From survey to installation in under three weeks. The price we were quoted was the price we paid — no last-minute extras. The house is noticeably warmer and quieter now.”
James & Claire M., your area
Full house double glazing, 12 windows
“As a landlord I needed to improve my EPC rating before the 2030 deadline. Aldermist handled everything professionally and the property went from E to C. Tenants are much happier too.”
David R., your area
Buy-to-let, 8 windows + composite door
Documentary
A your area home, before replacement
Your Old Windows Are Costing You More Than You Think
For homeowners near you, those rattling frames and misted panes are more than a cosmetic annoyance. Every single day, poorly insulated windows let heat escape from your home, forcing your boiler to work harder and pushing your energy bills higher. What might feel like a minor draught by the living room window is, over the course of a year, a significant and entirely avoidable expense.
The problem is compounding. According to the first UK Home Improvement Index published in January 2025, average building costs rose 19% in Q3 2024 alone. That means the cost of replacing your windows next year will almost certainly be higher than replacing them today. The economics of waiting are working against you.
And then there is the sales experience. National chains have built a business model around sending commissioned salespeople to your home, quoting an inflated price, and then offering a dramatic "one-night-only" discount to pressure you into signing before they leave. Homeowners near you deserve better than that.
in Q3 2024
Almost 7 million UK homeowners plan to renovate their properties by 2027, with an average budget of over £14,000 per project. The demand for quality tradespeople has never been higher.
Hillarys UK Home Renovation Trends & Statistics 2025
A Different Kind of Window Company
Aldermist Windows was built around a simple idea: that homeowners near you should be able to get premium double glazing from people they can trust, at a price that is honest from the start, installed by a local team who stake their reputation on every single job.
Every installation uses A-rated double glazing as standard, delivering the highest level of thermal performance available. Better insulation means less heat escapes in winter and less heat enters in summer, reducing the strain on your heating system and lowering your energy bills from the day your new windows go in.
There are no commissioned salespeople. No inflated starting price. No dramatic discount designed to make you feel like you are getting a deal when, in reality, you are paying what they planned to charge all along. The price we quote is the price you pay, confirmed in writing before any work begins.
And because every installation is carried out by our own employed fitters rather than subcontractors, there is genuine accountability. Our team works near you every week. Our reputation here depends on every single job we complete.
A-rated double glazing can reduce heat loss through windows by up to 50%, saving the average your area household £195–£465 per year on energy bills, according to the Energy Saving Trust. That saving starts from the day your new windows are installed.
After
New A-rated glazing installed
Getting Started Is Simple
We have designed our process to be as straightforward as possible. There are no lengthy forms, no pressure sales calls, and no obligation at any stage.
01 — Free Home Survey & Quote. We visit your property near you, assess your existing windows, listen to your requirements, and provide a fixed written quote with no hidden costs. No inflated starting price, no dramatic discount, no pressure to sign on the day.
02 — Design & Planning. Our team helps you choose the right styles, colours, and configurations for your home. We handle any building regulations requirements on your behalf.
03 — Expert Installation. Our own employed local fitters carry out all work to a high standard, keeping your home clean, safe, and disruption to a minimum throughout. Most installations are completed within one to two days.
04 — Handover & Aftercare. We complete a thorough walkthrough before handover and remain on hand for any questions. Every installation is backed by our 10-year guarantee.
Takes 60 seconds · No obligation · 100% free
What We Install
From double glazing and composite doors to bifold doors and conservatories, we handle the full scope of your glazing project.
Double Glazing Windows
A-rated energy-efficient glass as standard. uPVC, aluminium, and timber frames in a wide range of styles and colours to suit any property.
Composite Front Doors
Secure, thermally efficient composite doors that improve your home's kerb appeal and security. Available in dozens of designs and colours.
Bifold Doors
Open up your living space with precision-engineered bifold doors that bring the outside in. Slim aluminium profiles for maximum glass area.
Conservatories
Add valuable living space and natural light to your home. We design, supply, and install conservatories that you can enjoy all year round.
Why Now Is the Right Time to Upgrade Your Windows
The UK home improvement market was valued at £11.2 billion in 2024 and is projected to reach £16.67 billion by 2033, reflecting a sustained appetite among homeowners to invest in their properties. The median renovation spend reached £21,440 in 2024, a 26% year-on-year increase from £17,000 in 2023.
For landlords, there is an additional regulatory driver. Minimum Energy Efficiency Standards for privately rented homes will rise to EPC C by 2030, with all expenditure from 1 October 2025 counting towards the compliance cost cap. Upgrading to A-rated glazing is one of the most effective ways to improve your EPC rating.
With building costs rising and 22% of UK homeowners planning to increase their home improvement budget in 2025, securing your installation at today's prices makes both practical and financial sense.
Takes 60 seconds · No obligation · 100% free
Frequently Asked Questions
Honest answers to the questions we hear most often.
How long does a window replacement take?
Most standard window replacements are completed within one to two days. For larger projects involving multiple windows, bifold doors, or conservatories, we provide a clear project timeline at the quoting stage. You will know exactly what to expect before any work begins.
Do I need planning permission?
In the vast majority of cases, replacing windows on a like-for-like basis does not require planning permission. If your property is listed or in a conservation area, there may be additional restrictions. Our surveyor will advise you on any specific requirements for your home during your free survey.
How do I fund my window replacement?
Research shows that 86% of UK homeowners fund renovations through cash or savings. We offer a phased payment structure tied to project milestones, so you pay for completed, inspected work rather than large sums in advance. This means you only pay for what has actually been delivered.
Will new windows add value to my home?
Well-planned renovations can meaningfully increase your property's value. On average, a UK renovation adds approximately 9% to home value[10], equivalent to around £24,000 on a typical UK property. New A-rated double glazing improves your EPC rating, which is increasingly important to both buyers and the rental market.
What is the EPC C requirement and does it affect me?
The UK government has confirmed that Minimum Energy Efficiency Standards for privately rented homes will rise to EPC C by 2030, with expenditure on qualifying improvements from 1 October 2025 counting toward the compliance cost cap. If you are a landlord, upgrading to modern A-rated glazing now can help you meet this standard cost-effectively.
How do I know the quote won't change once work starts?
Every quote from Aldermist Windows is fixed in writing before any work begins. We visit your home, assess the job properly, and give you a price that does not change. Unlike some companies that start with an inflated figure and offer theatrical discounts, our pricing is transparent from the outset. What you see is what you pay.
What if something goes wrong after installation?
Every installation we carry out is backed by a 10-year guarantee on workmanship. If there is any issue with how your windows have been fitted, we come back and put it right at no cost to you. Because we use our own employed local fitters rather than subcontractors, you deal with the same accountable team throughout.
How do I get started?
Simply use the button below to request a free, no-obligation home survey. We will arrange a convenient time to visit your property near you, assess your existing windows, discuss your options, and provide a fully itemised fixed quote. There is no pressure to proceed.
Book My Free Home Survey
Answer a few quick questions and we’ll arrange your free, no-obligation survey.
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