Christmas Opening Hours
Mon 22nd December: 9 – 5 usual hours
Tue 23rd December: 9- 5 usual hours
Wed 24th December – closed
Thurs 25th December – closed
Friday 26th December – closed
Saturday 27th December – closed
Sunday 28th December – closed
Mon 29th December – closed
Tue 30th December – closed
Wed 31st December – closed
Thursday 1st January – closed
Friday 2nd January: 9 – 5 usual hours
How Casement Windows Improve Energy Efficiency
At Energy Efficient Homes, we install premium casement windows for homeowners across Colchester, Essex, and Suffolk. With over 100 years of combined industry experience, our team provides exceptional installations throughout Chelmsford, Ipswich, Braintree, Sudbury, Clacton-on-Sea and surrounding areas.
Contact us today for your free, no-obligation quote!
Casement Windows - Price Estimate
About Casement Windows
Learn more about the features and benefits of our high-performance casement windows.
Double or Triple Glazing
Choose from double or triple glazing to your home warm and energy costs low.
Peace of Mind
Our casement windows feature Yale blade ultra high security locking systems and are PAS24 accredited.
Weatherproof & Durable
Both our uPVC and aluminium windows are built to last through even the worst weather.
Customisable Style
Browse our range of colours, woodgrain finishes and hardware options.
Versatile Configurations
Choose from fixed frames, side-hung or top-hung designs in a wide range of sizes.
Testimonials
Absolutely exceptional customer service, installation service and extremely prompt at answering any questions I had! Anyone in the south east or east of England looking...
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Josh
Via Trusted Trader
Really pleased with our new door, great value and great service throughout. Thank you Sean and team?
Becky
Via Trusted Trader
A great service from start to finish. Friendly knowledgeable colleagues and very helpful. They did a great job and cleared up after themselves. Very happy...
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Michelle
Via Trusted Trader
Absolutely delighted with the whole process from initial enquiry to the installation 10 out of 10, amazing company and very quick turnaround. Thank you so...
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Sarah O'Donnell
Via Trusted Trader
This is the second time we have used 1st Homes. This time we had a new composite front door and Bi-fold doors. Excellent company, value...
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Denis
Via Trusted Trader
Outstanding. A 1st class customer journey from start to finish. I would highly recommend this company for your project.
Mr Oza
Via Trusted Trader
- Colours
- Glass Options
- Energy Efficiency
- Security
- Downloads
Colours
Beautiful Colours & Finishes
Customise your casement windows with our wide selection of colours and finishes. Choose from classic crisp whites, contemporary neutrals or striking standout colours. We even offer authentic woodgrain finishes that perfectly replicate traditional timber.
Looking for something specific? Our RAL colour options allow you to achieve exactly the look you want for your home.
Cream
White
Rosewood
Irish Oak
Golden Oak
Chartwell Green
Black
Grey
Glass Options
High-Performance Glazing Options
Customise your casement windows with our range of premium glazing options. Choose from double or triple glazing, and ensure privacy with our range of obscured glass options.
Warwick
Tribal
Taffeta
Reeded
Pelerine
Minster
Oak
Florielle
Mayflower
Everglade
Digital
Contora
Charcoal Sticks
Cassini
Chantilly
Energy Efficiency
Industry-Leading Thermal Efficiency
Energy efficiency sits at the heart of our window design, helping you create a more comfortable and sustainable home. Our casement windows feature the latest thermal technology, including multi-chambered profiles, argon gas-filled glazing units, and warm edge spacers.
Both our double and triple glazing options achieve impressive U-values, helping you save on energy bills while keeping your home comfortable all year round.
Security
Secure & Weatherproof Casement Windows
Your home's security is our priority. Both our uPVC and aluminium casement windows are PAS 24 accredited and feature high-security Yale locks as standard, giving you complete peace of mind. Multi-point locking mechanisms, internal beading, and robust frames work together to create a secure barrier against intruders, while advanced weatherseals ensure excellent protection against the elements.
Despite this superior performance, our windows remain remarkably low maintenance, requiring just occasional cleaning to maintain their pristine appearance.
Downloads
Downloads & Technical Information
Want to discover more? Browse our product downloads section for detailed information about our casement windows.
Why Choose Casement Windows?
Casement windows remain one of the most popular choices for UK homeowners – and for good reason. These versatile windows offer a perfect blend of style and practicality. Here’s why casement windows could be the ideal option for your home:
- This style suits any type of property from traditional to contemporary
- Casement windows can come in a range of different opening configurations, including side-hung and top-hung
- Casements open outwards like a door, allowing plenty of fresh air and ventilation
- Casements can be made with different materials to suit your needs – we offer a range of industry-leading uPVC and aluminium casement styles!
Local Benefits in Essex, Suffolk & Colchester
Each casement window installation is tailored to your home’s requirements. Our uPVC and aluminium systems combine long-lasting durability with contemporary aesthetics, all while improving your home’s efficiency and value.
Residents in Suffolk benefit from casement windows in Suffolk that reduce draughts, condensation, and heat loss, while homeowners across Essex enjoy improved security and low maintenance.
In Colchester, our casement windows are ideal for period terraces and Victorian homes, offering slim sightlines that respect heritage features while delivering A-rated performance. Coastal properties in Suffolk also gain extra protection from moisture, making our systems a strong long-term investment for your home.
Professional Installation You Can Trust
At Energy Efficient Homes, we combine beautiful casement windows you’ll love with installation service you can trust.
Our skilled team will support you throughout your journey, from helping you choose the perfect windows to ensuring a flawless installation. With our comprehensive 10-year insurance-backed guarantee and dedicated aftercare service, you can feel confident in your investment for years to come.
Our service goes beyond supply and installation. We advise on planning requirements in conservation areas, recommend glazing types to suit Suffolk’s coastal conditions, and offer flexible finance options for homeowners across Essex. Every project is handled by qualified installers backed by our 10-year insurance guarantee — giving you confidence that your new casement windows are built to last.
Get in touch today for a free quote or to discuss your options.
How Can Casement Windows Improve Your Essex Home's Efficiency and Style?
Modern casement windows offer homeowners the perfect blend of traditional design and contemporary performance. Understanding the versatility and benefits of casement windows helps property owners make informed decisions about window replacements that can enhance their home's appearance while improving energy efficiency.
Get Your Free Casement Windows QuoteWhat materials are available for casement windows?
We offer both uPVC and aluminium casement windows. Our uPVC windows feature premium Liniar profiles, while our aluminium options are thermally broken for excellent energy efficiency. Both materials offer outstanding performance and durability, providing beauty that stands the test of time.
What is a casement window & how is it different to other styles?
Casement windows are one of the most traditional and versatile window styles available. These windows are attached to their frame by one or more hinges at the side (or top) allowing them to open outward like a door. They can be installed individually, in pairs, or with a fixed picture window, making them suitable for any room in your home.
What glazing options do you offer?
Choose from either double or triple glazing, both featuring Low-E glass and argon gas filling. Our double glazing offers excellent energy efficiency, while our triple glazing provides ultimate thermal performance.
How long will my new windows last?
Our casement windows are built to last and come with a comprehensive 10-year insurance-backed guarantee for complete peace of mind.
Do you offer different opening configurations?
Yes, our casement windows are available in side-hung, top-hung, or fixed configurations. They can also be installed in bay or bow arrangements to suit your preferences. You can also choose from chamfered and sculptured options.
Accreditations
Browse our styles
Visit Our Showroom
Start your home improvement journey at our Marks Tey showroom, where you can explore our full range of products in person.
Conveniently located at Unit 3, Flyover Nurseries, Coggeshall Road (CO6 1LJ), our showroom features working displays and our experienced team is always ready to help.
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Areas We Serve
We’re proud to serve homeowners throughout Essex and Suffolk with a comprehensive range of windows, doors and home extensions.
Our expert team brings quality installations to homes across the region, including Colchester, Chelmsford, Clacton-On-Sea, Sudbury, and Ipswich.
