Elevate Your Home with Bespoke Fixed Sash Windows
Your windows do more than frame a view—they define your home’s character, efficiency, and security. Our custom fixed sash windows blend timeless elegance with cutting-edge craftsmanship, offering superior insulation, durability, and aesthetic refinement.
📊 Did you know? 58% of UK homeowners prioritise energy efficiency when upgrading windows (Energy Saving Trust, 2023). Our fixed sash designs help reduce heat loss while enhancing kerb appeal.
Why Choose Fixed Sash Windows?
Fixed sash windows are a low-maintenance, high-performance solution for modern and period homes alike. Unlike traditional sash windows, they do not slide open, ensuring a sleek, airtight fit that maximises insulation and security.
Key Benefits:
- Enhanced Thermal Efficiency – Minimises draughts and reduces energy bills.
- Superior Security – A fixed frame means no weak points for intruders.
- Uninterrupted Sightlines – Large glass panes let in maximum natural light.
- Tailored to Your Home – Bespoke sizing, glazing, and frame styles available.
Why Homeowners Trust Us
🔹 Heritage Expertise – Over a decade of experience in sash window restoration and customisation.
🔹 FENSA-Certified Installers – Industry-recognised for compliance and quality.
🔹 Energy Efficiency Leadership – Premium glazing solutions to improve insulation.
Join over 1,000 UK homeowners who have upgraded with our custom solutions. Ready to transform your space?
Get Started Today
Understanding Fixed Sash Windows: A Modern Take on a Classic Design
Fixed sash windows offer a sleek, energy-efficient alternative to traditional sliding sash windows. Unlike their operable counterparts, these windows remain fixed in place, providing unparalleled airtightness, enhanced security, and superior insulation—ideal for modern and period homes alike.
📊 Market Insight: The UK window and door market is valued at £4.4 billion, with demand for timber sash windows growing (Statista, 2023).
How Do Fixed Sash Windows Differ from Traditional Sliding Sash Windows?
While both window types share the classic aesthetic of traditional sash designs, their functionality sets them apart:
| Feature | Fixed Sash Windows | Sliding Sash Windows |
| Operation | Fixed, does not open | Vertically sliding mechanism |
| Energy Efficiency | 30% better airtightness (GGF, 2023) | Prone to minor draughts |
| Security | No moving parts, highly secure | Locking mechanisms required |
| Ventilation | Paired with ventilation systems | Natural airflow when open |
| Aesthetic Appeal | Sleek, minimal frames | Classic period detailing |
Are Fixed Sash Windows Less Functional Because They Don’t Open?
Not at all. Fixed sash windows are designed to enhance insulation and security while maintaining aesthetic integrity. They are often installed alongside operable sash windows or integrated with ventilation systems to ensure optimal airflow.
How Do Fixed Sash Windows Improve Thermal Insulation?
- Sealed Design: Prevents heat loss, reducing energy bills.
- High-Performance Glazing: Options like low-E glass and argon-filled double glazing enhance thermal efficiency.
- Material Selection: Timber, uPVC, and aluminium offer varying levels of insulation and durability.
📊 Fact: Fixed sash windows provide 30% better airtightness compared to sliding sash styles (Glass & Glazing Federation, 2023).
Can Fixed Sash Windows Be Integrated with Operable Windows?
Yes. Many homeowners combine fixed sash panels with operable sash sections for the perfect balance of airflow, energy efficiency, and design cohesion.
Fixed sash windows offer a refined, low-maintenance solution that complements both heritage and contemporary architecture—all while maximising insulation, security, and light.
Why Fixed Sash Windows Are the Perfect Choice for Contemporary Living
Fixed sash windows combine modern aesthetics, energy efficiency, and low maintenance, making them a preferred choice for homeowners seeking both style and practicality. Unlike operable sash windows, their sealed design eliminates air leaks, improves security, and reduces upkeep—all while maintaining the classic charm of traditional sash designs.
📊 Fact: Upgrading to energy-efficient windows can reduce heating costs by up to £235 per year (Energy Saving Trust, 2023).
Superior Energy Efficiency and Insulation
Fixed sash windows are engineered for exceptional thermal performance, preventing heat loss in winter and reducing overheating in summer.
- Airtight Construction: Eliminates draughts, ensuring optimal indoor temperatures year-round.
- High-Performance Glazing: Options like double or triple glazing and low-E coatings enhance insulation.
- Frame Materials: Timber, uPVC, and aluminium offer varying degrees of insulation, durability, and design flexibility.
Enhanced Security Benefits
Fixed sash windows have no moving parts, meaning there are no weak points for forced entry. Their reinforced frames and toughened glazing further enhance security, making them ideal for ground-floor installations and urban properties.
Noise Reduction for a Quieter Home
📊 Fact: Double-glazed fixed sash windows block up to 70% of outside noise compared to single-pane alternatives (Which? Consumer Reports, 2022).
Their airtight seals and soundproof glazing create a calmer, quieter living environment, making them an excellent choice for homes in busy urban areas or near roads.
Low Maintenance and Long-Lasting Durability
Fixed sash windows require minimal upkeep since they lack moving components prone to wear and tear. Without hinges, pulleys, or counterweights, they:
- Last longer than traditional sash designs.
- Resist warping and mechanical failure.
- Require only occasional cleaning and resealing.
Modern Aesthetic Appeal and Increased Property Value
Their sleek, frameless appearance complements contemporary architecture, maximising natural light while maintaining a refined, minimalist look.
Can they improve resale value? Absolutely—high-performance, energy-efficient windows are a key selling point, attracting eco-conscious buyers and increasing overall property desirability.
Fixed sash windows offer a smarter, more efficient way to enhance your home’s comfort, security, and aesthetic appeal, all while reducing energy costs and long-term maintenance.
Fixed vs. Operable Sash Windows: Which One is Right for You?
Choosing between fixed and operable sash windows depends on your priorities—energy efficiency, ventilation, aesthetics, or maintenance. While both styles maintain the classic elegance of sash windows, their functionality and performance differ significantly.
📊 Fact: Operable sash windows have an air leakage rate of 10-15%, while fixed sash designs offer near-zero leakage (Building Research Establishment, 2023).
Key Design and Functional Differences
- Fixed Sash Windows: These do not open, providing a clean, modern aesthetic, enhanced thermal insulation, and better security.
- Operable Sash Windows: These slide open vertically, offering natural ventilation but requiring more maintenance due to moving components.
| Feature | Fixed Sash Windows | Operable Sash Windows |
| Ventilation | ❌ No airflow | ✅ Allows fresh air |
| Energy Efficiency | ✅ Superior insulation (zero air leaks) | ❌ Higher heat loss (10-15% air leakage) |
| Maintenance | ✅ Minimal upkeep | ❌ Requires regular maintenance |
| Security | ✅ Extremely secure (no access points) | ❌ Potential security risks if left unlocked |
| Aesthetic Appeal | ✅ Sleek, modern look | ✅ Classic heritage appearance |
📊 Fact: Fixed sash windows require 40% less maintenance over a 20-year period compared to operable sash styles (Glass & Glazing Federation, 2023).
Energy Efficiency and Performance
Fixed sash windows outperform operable designs in airtightness and insulation, preventing heat loss and draughts. They are particularly beneficial for passive house designs and modern energy-efficient homes.
But what about ventilation? If airflow is a concern, fixed sash designs can be paired with trickle vents or strategically placed operable windows to balance insulation and air circulation.
Should You Choose Fixed or Operable Sash Windows?
- Fixed Sash Windows Are Ideal If:
- You want maximum insulation and energy savings.
- Security and low maintenance are top priorities.
- You prefer a sleek, modern aesthetic.
- Operable Sash Windows Are Ideal If:
- You require ventilation in certain rooms (e.g., kitchens or bathrooms).
- You want a traditional sash experience with operability.
Ultimately, the right choice depends on your home’s layout, climate, and personal preferences—with fixed sash windows excelling in insulation and durability, and operable designs offering airflow and flexibility.
How Custom Fixed Sash Windows Improve Energy Efficiency
Windows are one of the biggest culprits of heat loss in a home, responsible for up to 30% of total energy loss (Energy Saving Trust). Fixed sash windows offer a superior insulation solution by eliminating air leaks, enhancing thermal performance, and reducing energy bills.
The Airtight Advantage: Why Fixed Sash Windows Retain More Heat
Unlike operable sash windows, which can have air leakage rates of 10-15%, fixed sash designs offer near-zero leakage, significantly improving insulation. This is particularly important in colder months, where airtight windows help maintain stable indoor temperatures without overworking your heating system.
📊 Fact: Fixed sash windows reduce heat loss by up to 30% compared to operable sash windows.
The Role of Double and Triple Glazing in Energy Efficiency
Glazing is a key factor in window insulation performance.
- Single glazing allows significant heat loss, making it less efficient.
- Double glazing cuts heat loss by 50% while reducing cold spots.
- Triple glazing provides even better insulation, but the added cost may not always be necessary unless in extreme climates.
Timber sash frames further enhance insulation, achieving U-values as low as 1.2 W/m²K, outperforming standard uPVC and aluminium alternatives.
How Much Can You Save on Energy Bills?
Switching to energy-efficient fixed sash windows can result in substantial cost savings:
- Annual heating savings: Up to £235 per year (Energy Saving Trust).
- Long-term sustainability: Less reliance on heating and cooling, reducing carbon footprint.
Government incentives and grants may also apply for energy-efficient window upgrades, making fixed sash windows a smart financial and environmental choice.
Tailor-Made Fixed Sash Windows to Match Your Home’s Style
Your windows are more than just functional elements—they define the character and personality of your home. With custom fixed sash windows, you can achieve the perfect balance of heritage charm, modern elegance, and energy efficiency.
Bespoke Customisation: Materials, Colours, and Finishes
Whether you live in a period property or a contemporary new build, fixed sash windows offer endless customisation possibilities:
- Materials: Choose from timber for a classic, insulating touch, aluminium for a sleek, minimalist look, or uPVC for a cost-effective, low-maintenance solution.
- Colours & Finishes: Over 200 RAL colours ensure a seamless match with your home’s aesthetic, from heritage-inspired muted tones to bold modern shades.
- Glazing Options: Custom Georgian bars, astragal bars, and frosted glazing can enhance period authenticity or add a contemporary edge.
📊 Fact: 65% of homeowners prioritise design and aesthetics when selecting new windows.
Classic Meets Contemporary: Matching Architectural Styles
For period homes: Fixed sash windows can replicate traditional styles while improving insulation. Features like slim sightlines, deep timber frames, and authentic glazing patterns maintain the original charm.
For modern homes: Minimalist designs with slim aluminium frames offer unobstructed views and a clean, contemporary appearance.
📊 Fact: In heritage areas, timber sash windows can increase property value by up to 10%.
Enhanced Home Security with Fixed Sash Windows
Windows are a common entry point for break-ins, but fixed sash windows offer a superior level of security compared to traditional operable styles. With no moving parts or accessible locks, they significantly reduce forced entry risks while maintaining aesthetic appeal.
Why Fixed Sash Windows Are More Secure
- No Opening Mechanism – Unlike sliding or casement windows, fixed sash designs cannot be pried open, making them inherently more secure.
- Toughened & Laminated Glass – Security glass options like laminated glass (which is 5x stronger than regular glass) provide enhanced protection against impact and forced entry.
- Reinforced Frames & Multi-Point Locks – Timber, uPVC, and aluminium frames can be reinforced for added security, with multi-point locking systems ensuring a robust barrier.
- Smart Security Integration – Fixed sash windows can be fitted with sensors to work with smart home security systems, alerting homeowners to any tampering attempts.
📊 Fact: 23% of UK burglaries occur through windows, making security-enhanced designs essential.
Material Comparison: Security Ratings
| Window Material | Security Strength | Best Features |
| Timber | 🔒🔒🔒🔒 | Naturally strong, can be reinforced |
| uPVC | 🔒🔒🔒 | Cost-effective, but less impact-resistant |
| Aluminium | 🔒🔒🔒🔒 | High durability, slim but strong frames |
For homeowners prioritising security without compromising style, fixed sash windows provide unmatched protection while seamlessly integrating into any architectural design.
Experience Peace & Quiet with Fixed Sash Windows
Unparalleled Noise Insulation
Fixed sash windows are engineered for superior acoustic insulation, eliminating gaps where external noise seeps in. Their airtight construction ensures better soundproofing compared to operable windows, making them an ideal choice for homes in busy urban areas, near motorways, or under flight paths.
How Glazing Affects Noise Reduction
The type of glazing plays a crucial role in reducing sound transmission:
- Single glazing – Basic insulation but limited noise reduction.
- Double glazing – Can reduce external noise by up to 35 decibels (dB).
- Triple glazing – Offers up to 50 dB noise reduction, ideal for high-noise environments.
📊 Fact: Traffic noise disturbs sleep for 40% of urban residents, affecting overall well-being. (World Health Organization)
Best Frame Materials for Soundproofing
| Frame Material | Acoustic Insulation | Best Features |
| Timber | 🔇🔇🔇🔇🔇 | Natural density absorbs vibrations effectively |
| uPVC | 🔇🔇🔇🔇 | Budget-friendly, moderate noise reduction |
| Aluminium | 🔇🔇🔇 | Sleek design but requires acoustic reinforcements |
For optimal soundproofing, acoustic laminated glass and foam-filled frames can further enhance noise reduction, ensuring a quieter and more peaceful living space.
How Fixed Sash Windows Contribute to a Greener Home
Sustainable Materials for Eco-Friendly Windows
Choosing the right window material significantly impacts environmental sustainability. Fixed sash windows are available in timber, aluminium, and uPVC, each with unique eco-benefits:
- Timber – The most sustainable choice, timber is 100% renewable, biodegradable, and carbon-negative when sourced from FSC-certified forests. With proper maintenance, timber sash windows can last over 100 years, reducing landfill waste.
- Aluminium – 95% recyclable and highly durable, making it a strong eco-conscious option. Modern aluminium windows also feature thermal breaks to improve insulation.
- uPVC – While not as biodegradable, high-quality uPVC can be recycled multiple times, extending its lifespan and reducing plastic waste.
📊 Fact: Windows account for 10–25% of a home’s total energy loss. (US Department of Energy)
Lowering Carbon Footprints with Energy Efficiency
Fixed sash windows enhance passive heating and cooling, reducing reliance on artificial temperature control. Their airtight design prevents heat loss, while double or triple glazing significantly lowers carbon emissions by keeping homes naturally insulated.
Recycling & Repurposing Old Windows
Concerned about waste? Old timber sash windows can be refurbished, repurposed, or recycled, preventing unnecessary landfill disposal. Many manufacturers offer take-back programmes for uPVC and aluminium, ensuring eco-friendly disposal.
What to Expect When Installing Fixed Sash Windows
Step-by-Step Installation Process
- Survey & Measurement – A professional surveyor assesses your home’s window openings to ensure a precise fit. This step is crucial for airtight insulation and seamless aesthetics.
- Manufacturing – Custom sash windows are crafted based on your specifications. This process typically takes 4–8 weeks, depending on materials and glazing choices.
- Site Preparation – Clear the area around windows, remove delicate objects, and ensure access for installers. No need to vacate your home—installations are non-intrusive.
- Removal of Old Windows – The existing windows are carefully detached to prevent damage to surrounding frames and structures.
- Installation & Sealing – The new fixed sash windows are fitted, secured, and sealed to eliminate draughts and maximise energy efficiency.
- Final Inspection & Cleanup – A post-installation check ensures perfect alignment, and the workspace is left spotless.
📊 Fact: Properly installed sash windows can last 60+ years with routine maintenance.
Installation Timeline & Minimising Disruption
- Custom-built windows: 4–8 weeks from order to delivery.
- On-site fitting: 1–2 days per window, with minimal mess and disruption.
- Energy savings: Double-glazed sash installations can cut energy costs by up to 20%.
Understanding the Investment: Fixed Sash Window Costs
What Affects the Cost of Fixed Sash Windows?
The price of fixed sash windows depends on several key factors:
- Material:
- Timber (£1,200–£3,500 per window): A premium option offering longevity and authentic aesthetics.
- uPVC (£800–£1,500 per window): Budget-friendly but lacks the heritage appeal of timber.
- Aluminium (£1,000–£2,500 per window): Modern, sleek, and highly durable.
- Glazing Options:
- Double glazing is standard for insulation and energy efficiency.
- Triple glazing adds superior noise reduction and thermal retention but costs more.
- Customisation & Design:
- Bespoke Georgian bars, colour-matching, and period-style detailing increase costs.
📊 Fact: Energy-efficient windows can save up to £235 per year on heating bills.
Is Timber Worth the Extra Cost?
Yes—while timber frames cost more upfront, they last twice as long as uPVC (over 60 years) and offer superior insulation. They also add up to 10% to property value in heritage areas.
Financing & Incentives
- Government Grants: Some councils offer grants for period-home restorations.
- Financing Options: Many providers offer payment plans for larger projects.
Transform Your Home with Custom Fixed Sash Windows
Why Choose Fixed Sash Windows?
Fixed sash windows offer timeless aesthetics, exceptional energy efficiency, and enhanced security, making them an ideal investment for both modern and period homes.
- 100% Satisfaction Guarantee – Every installation is backed by our industry-leading warranty.
- Energy Savings – Reduce heating costs by up to £235 per year with high-performance glazing.
- Premium Craftsmanship – Over 1,500+ successful installations, certified by FENSA & BFRC.
- Tailored Design – Choose from 200+ RAL colours, heritage detailing, and premium materials.
📊 82% of homeowners rely on online reviews before making a home improvement purchase.
Get Started Today
📞 Book a Free Consultation – Our experts will guide you through design options and pricing.
📩 Get a Free Quote – Click below to receive a tailored estimate for your project.
FAQ: Custom Fixed Sash Windows
1. Are Fixed Sash Windows Energy-Efficient?
Yes! Fixed sash windows offer superior insulation compared to operable sash windows due to their airtight design.
- 30% better airtightness than sliding sash windows, reducing heat loss.
- Double & triple glazing enhances thermal efficiency by retaining up to 60% more heat than single glazing.
- Timber frames naturally insulate better than uPVC or aluminium.
- Low-E coatings and argon gas-filled panes further reduce energy loss.
📊 Energy-efficient windows can save up to £235 per year on heating bills.
2. Can Fixed Sash Windows Be Customised?
Absolutely! We offer tailor-made designs to match any architectural style, from heritage homes to contemporary properties.
- 200+ RAL colour options to complement your home’s aesthetic.
- Traditional & modern glazing bars for authenticity.
- Custom hardware in brass, chrome, and antique finishes.
📊 1 in 5 UK homeowners prefers traditional sash windows in modern homes.
3. Do Fixed Sash Windows Require Maintenance?
Minimal maintenance is needed:
- uPVC: Low maintenance, only requires occasional cleaning.
- Timber: Needs repainting or sealing every 5–7 years.
- Aluminium: Weather-resistant and corrosion-proof.
- Seal checks help prevent air leaks and condensation.
📊 Properly maintained timber sash windows can last over 100 years.
4. Are Fixed Sash Windows Secure?
Yes! Fixed sash windows eliminate weak points since they don’t open.
- Laminated glass is 10x stronger than standard glass, resisting forced entry.
- Multi-point locking systems add extra security.
- PAS 24 certification ensures maximum protection.
📊 Homes with secure windows are 70% less likely to be burgled.
5. Do Fixed Sash Windows Increase Home Value?
Definitely! High-quality sash windows boost curb appeal and resale value.
- Energy-efficient upgrades increase home value by 5–10%.
- Timber sash windows are particularly desirable in period homes.
- Buyers prioritise energy efficiency, making upgraded windows a smart investment.
📊 Installing new windows can increase a home’s value by up to 10%.
