Windows
Window replacement and installation
New windows transform your home's warmth, security and kerb appeal. We've been fitting them across South Bucks since 2003 — from simple casement replacements to bespoke aluminium frames on the larger homes of Gerrards Cross and Beaconsfield.
The Alpha Windows Story
Started on a principle. Still here because of it.
We set up in Berkshire because this is our patch. We know South Buckinghamshire. We know the area's housing stock from the Victorian semis in Slough to the large detached homes in Gerrards Cross, the character properties in Beaconsfield, and the period homes that line the streets around Windsor. We've spent over two decades building a reputation here, one installation at a time.
Over 20 years on, nothing fundamental has changed. We still visit every home personally. We still give you an honest assessment rather than a sales pitch. We still won't leave until the job is done properly and you're happy with it. We started with the belief that local homeowners deserved someone they could actually trust. That hasn't changed.
Casement Windows
Casement Windows
The most widely fitted window in UK homes. Available in uPVC and aluminium, side or top-hung, and in any colour finish — suited to almost every property type.
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Flush Casement Windows
Flush Casement Windows
The sash sits level with the outer frame for a clean, uninterrupted profile. A popular choice for period properties and contemporary renovations where the detail matters.
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Sash Windows
Sash Windows
The defining window of Victorian and Edwardian homes. Smooth counterbalanced operation, authentic sightlines, and optional decorative horns — available in uPVC and timber alternative.
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Aluminium Windows
Aluminium Windows
Slim sightlines, large glass areas, and exceptional durability. The premium choice for extensions, larger properties, and homeowners who want a step above standard uPVC.
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Tilt & Turn Windows
Tilt & Turn Windows
Opens inward for easy cleaning and full ventilation, or tilts for secure background airflow. Well suited to upper floors, flats, and spaces where outward opening isn't practical.
See optionsThe process
Getting started is simpler than you think
Here's exactly what happens after you get in touch.
Get in touch
Tell us what you are thinking
Fill in the short form below or give us a call on 01753 663663. There is no obligation and no sales process triggered by making contact — just let us know what you are considering and we will take it from there.
We visit your home
A proper look at your property
We visit at a time that suits you — usually within a few days. We measure every opening, assess what is there, and talk through your options honestly. We bring samples so decisions can be made against your actual property in natural light.
Your written quote
Clear costs, no surprises
We follow up with a written quote that covers everything involved. No hidden charges, no items that appear later. There is no pressure to decide on the day and no uninvited follow-up calls. You take as long as you need.
Installation
Done properly, left tidy
Our fitters work through each opening one at a time so your home is never left exposed. Furniture and flooring are protected throughout. Old frames are removed and disposed of. Before we leave, everything is tested and you are walked through the result.
Why new windows matter
The difference quality windows make
Warmth
Lower heating bills, immediately noticeable
Modern A-rated double and triple glazing dramatically reduces heat loss. Homeowners replacing older single or early double glazing typically notice a meaningful drop in heating costs within the first winter.
Security
Proper security, not just a lock
Modern window locks meet current British Standards and are significantly more secure than windows manufactured before 2000. Our windows feature multi-point locking as standard.
Quiet
A noticeably quieter home
If you're near a road, railway or school, the difference that quality glazing makes to internal noise levels is substantial. Acoustic glass upgrades are available if noise is a particular concern.
Value
A better home to live in and to sell
Research shows that 47% of buyers will pay a premium for a home with quality, efficient glazing already installed. New windows are one of the few home improvements that pay for themselves at point of sale.
Common questions
What homeowners ask us about windows
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Most single-window replacements take a few hours. A full house typically takes 1-3 days depending on property size and the number and complexity of units involved. We'll give you a realistic timeline when we quote.
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In most cases, no — replacing like-for-like windows is covered by permitted development rights. If you're in a conservation area, an AONB, or a listed building, there may be additional requirements. We'll advise you fully during your site visit.
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uPVC is low-maintenance, thermally efficient, and cost-effective — the right choice for most homes. Aluminium offers slimmer sightlines, greater strength, and a more contemporary aesthetic. It's particularly well-suited to modern homes and extensions. We'll help you choose based on your property's character and your priorities.
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All our window installations come with a 10-year guarantee as standard. As FENSA registered installers, every installation is also certified to current building regulations and registered with your local authority automatically.
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In most cases, yes. We'll take precise measurements and work with our suppliers to find the closest match in profile, colour and glass specification. We'll be honest with you if an exact match isn't achievable.
Free no-obligation quote
Get your free quote
Tell us what you're thinking. We'll be in touch within one working day to arrange a visit. No pressure, no automated calls — just a real conversation.
What to expect
No pressure, no obligation
We'll never chase you or push for a decision on the day.
We visit your home personally
Every property is different — we measure properly before quoting.
Clear, itemised quote — no hidden costs
A written quote with everything included. Take as long as you need.
Your details stay private
We'll never share your details or add you to a mailing list.