Why Trust Thames Windows Ltd
With Your Windows?
With over 10 years of expertise, our Fensa-registered team at Thames Windows Ltd supplies and installs premium windows for Berkshire, Windsor, Maidenhead, Beaconsfield, Bourne End, Staines, and Marlow homes. Our competitive prices, AA+ rated systems, and quick turnaround guarantee you excellent results,backed by a full 10-year insurance warranty from Installsure and exceptional aftercare service.
Types of Windows We Install
Casement Windows
Casement windows are a timeless favourite for homeowners, offering simple operation, excellent ventilation, and a classic look that fits nearly any property style.
- Side or top-hinged for easy opening
- Delivers maximum airflow and natural light
- Excellent thermal and sound insulation
- Low maintenance, long-lasting design
- Popular throughout Berkshire and Buckinghamshire
French Windows
French windows add a sense of space and style, allowing for wider openings and a seamless transition from indoors to outdoors, making them ideal for homes aiming to capture more light and airflow.
- Twin sashes open outwards with no central mullion
- Create unobstructed access to gardens or patios
- Enhance both classic and modern property styles
- Toughened glass and secure locking available
- Sought-after for Beaconsfield and Windsor properties
Tilt & Turn Windows
Tilt & turn windows offer ultimate practicality, combining two opening options in one sleek design. Perfect for upper floors in Uxbridge and London, they make cleaning and ventilating simple.
- Tilt inwards for secure, gentle ventilation
- Swing open fully for easy cleaning access
- Superior security with multi-point locking
- Ideal for flats and townhouses
- Fitted in homes across Berkshire, Buckinghamshire and London
Aluminium Windows
Aluminium windows deliver modern aesthetics and impressive durability, with slim frames that maximise glass area and light. Highly weather-resistant, they're built for longevity across the South East.
- Contemporary slimline frames maximise glass
- Exceptional strength and security
- Powder-coated finishes resist rust and fading
- Low maintenance and long lifespan
- Choice for modern Staines and Maidenhead homes
What Other Windows Can We Install Double Glazing On?
Sash
Windows
Sash windows blend timeless character with modern energy efficiency, making them perfect for period properties or anyone looking to enhance traditional aesthetics without sacrificing comfort.
Easy to operate and now available with advanced glazing, they provide an attractive, practical solution for homes in both heritage and contemporary settings.
Bay & Bow
Windows
Bay and bow windows create a striking feature in any room by extending outward to add living space and flood interiors with natural light.
These windows are ideal if you want to make a statement, enjoy panoramic views, and benefit from increased ventilation, giving your home a spacious, elegant feel.
Flush Casement Windows
Flush casement windows sit level with the window frame for a clean, streamlined appearance, combining classic and modern design touches.
Suitable for both heritage and contemporary properties, they offer all the benefits of advanced double glazing with a sleek, understated finish.
uPVC
Windows
uPVC windows are a cost-effective, energy-efficient and low-maintenance choice for homeowners seeking a reliable upgrade. Available in a range of colours and finishes, they provide fantastic insulation and security, suited to a wide variety of property styles across the South East.
Download our Window Glazing Brochures
Benefits of Modern Double Glazing
Lowered heating costs and improved energy efficiency
Enhanced sound insulation for quieter homes
Greater home security with robust, toughened glass
Less condensation for a healthier living environment
Boosted property value and better kerbside appeal
Improved thermal comfort throughout the year
Our Window Installation Process
Free Home Survey
We visit your property at a convenient time to carry out a detailed survey, assess your needs, and offer expert advice.
Measurements & Consultation
We take accurate measurements. You select your preferred styles and finishes, with samples and recommendations to hand.
Transparent Quotation
You receive a clear, itemised quote with no hidden fees. Once agreed, we order or manufacture your windows to precision.
Installation
Your windows are expertly fitted by our qualified FENSA registered team. We use dust sheets and respect your home throughout.
Finishing Touches & Quality Check
We tidy up, dispose of old frames or debris, and thoroughly check each installation for fit, finish, and durability.
Certification & Guarantee
You get FENSA registration documents and our 10 year Installsure-backed insurance guarantee, with advice on care and aftercare.
Energy Efficiency & Ratings
Our double glazed windows are built for superior energy efficiency, making homes the South East warmer and cheaper to heat. With features designed to keep draughts out and comfort in, our installations consistently outperform building standards.
- AA+ energy rated windows supplied and installed
- Argon gas filled units improve insulation
- Warm edge spacer bars stop cold spots
- Low U-values mean reduced heat loss
- Robust weathersealing for local conditions
Window Glazing Questions You May Ask
Who installs your double glazed windows?
Our fully qualified, Fensa-registered Thames Windows Ltd team installs all double glazed windows in Berkshire, ensuring expert results every time.
Why should I replace my windows?
Replacing windows boosts energy efficiency, reduces noise, enhances security, lowers condensation, and can improve your property’s comfort and value.
How energy efficient are modern double glazed windows?
Our AA+ rated double glazed windows offer top thermal performance, lowering heat loss, cutting energy bills, and increasing comfort throughout the year.
Why choose double glazing over single glazing?
Double glazing dramatically reduces heat loss, blocks external noise, minimises condensation, and improves security compared to older single glazing options.
What is the difference between uPVC and aluminium windows?
uPVC windows are cost-effective, energy efficient and low maintenance, while aluminium windows are strong, slim framed, and favoured for a contemporary appearance.
Which areas do you cover for window installation?
We install windows in Berkshire including Windsor, Maidenhead, Beaconsfield, Bourne End, Staines, Marlow and surrounding South East locations.
Can you upgrade my existing wooden or sash windows to double glazing?
Yes, we can fit double glazing to existing timber and sash windows, including period properties, using modern techniques and slimline glazing units.
How long does window installation take?
Installation is typically quick and convenient. After the initial survey and manufacturing, most window replacements are completed within a day per property.
What security features are included with your windows?
Our windows include toughened glass, secure hinges, internal beading, and PAS 24 compliant options to maximise your home’s security and safety.
Do your windows come with a guarantee?
Yes, all our window installations include a full 10-year insurance-backed guarantee via Installsure for your peace of mind.
How can I get a free quote for replacement windows?
Contact Thames Windows Ltd on 07984 627528, email, or use our website to request your free, no-obligation window installation quote in Berkshire.
Get your free quote today
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enquiries@thameswindowsltd.co.uk
