SASH WINDOW

 SPECIALISTS FOR OVER 40 YEARS

With over 40 years’ experience, William Richards is trusted by London homeowners for our craftsmanship, reliability, and attention to detail. Family run for over 40 years, we specialise in the restoration and replacement of traditional sash windows - combining time-honoured techniques with modern efficiency.

In today’s climate, we know value matters more than ever. That’s why we’re committed to keeping our prices competitive, while never compromising on quality, service, or finish.

Whether you’re restoring period features or upgrading for energy efficiency, our expert team is here to help you achieve the perfect result - at a fair price.

15% off Double Glazed Sash Upgrades

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William Richards Sash Windows  Factory   
Unit C3 Development 2
Stafford Park 4 TF3 3BA

William Richards Sash Windows London   60 Cannon St, London 
EC4N 6NP

                    We are open:                      Monday - Friday 9 am to 4:30pm              

committed to tailored, affordable solutions

highest quality timber, glass and materials used

extensive set of insurance backed guarantees

Cost-Effective. Subtle Installation. No Interior Damage.

Our Heritage Sash Upgrade package replaces your existing single-glazed sashes with double or vacuum glazed replicas, fitted seamlessly into your original, repaired, and draught-sealed frames.

This subtle, low-impact solution offers the best of both worlds — modern energy performance and historic authenticity.


Enhance your home’s period character


Double or vacuum glazing options available


Retain historical fabric and minimise interior damage


Preserving every Georgian or Victorian feature


Enjoy long-term comfort and lower heating costs


Enjoy a 10 year protected spray painted finish


Sash Upgrades

Traditional craftsmanship

Perfectly Recreated.

Our time-served joiners take exceptional care to replicate every original detail of your sash windows. From the moulding profiles and glazing bars to the horn shapes and section designs, each new sash is individually crafted to mirror your home’s unique design and history.

By combining traditional techniques with precision tooling and premium materials, we ensure your upgraded sashes look and feel exactly as they did when first installed - only warmer, quieter, and more efficient.

our windows are installed by our in-house specialist installers

8 - 10 week lead time on current orders

Sash window Renovation


Discreetly fitted seals eliminate cold air, rattles, and dust ingress - without altering the appearance of your windows


Our skilled specialist installers repair or replace decayed timber, cracked timber and damaged glass to restore strength, stability and security.


Every sash is re-fitted and corded to snugly fit the movement of the box over the last century resulting in effortless operation.


No planning is required to maintain and restore your original sash windows


Our most affordable package, with impactful results

Warmer, Smoother, Safer

Bring your original sash windows back to life with our comprehensive renovation and draught-proofing service. Whether your windows are cold, rattling in the wind, or painted shut, we’ll restore them to smooth, energy-efficient operation, preserving your home’s character while improving comfort, warmth and security.


Our experienced sash window specialists deliver meticulous renovations that are both cost-effective and long-lasting. Each project enhances your home’s warmth, security, and durability, while preserving the sash windows original elegance. 

Using traditional joinery and precise restoration techniques, we ensure your sash windows operate smoothly, seal effectively, and retain their character for years to come - offering superior quality and comfort without the premium price.

Affordable Renovation

results

William Richards Sash Windows was born from a passion for craftsmanship. Founded over 40 years ago by William Partridge, a skilled luthier and woodworker, our company has grown from a small Shropshire workshop into one of London’s most trusted names in sash window renovation and replacement.

Still family-owned, we uphold the same principles of precision, honesty, and exceptional workmanship that shaped our beginnings. Every project is handled by a team of specialist designers, joiners and installers who blend traditional skill with modern efficiency to deliver outstanding, lasting results.

We know times are challenging, which is why we’re committed to offering cost-effective, transparent solutions without compromising on quality. Our goal is simple - to help London homeowners preserve their property’s heritage, improve warmth and security, and achieve lasting value through expert, affordable craftsmanship.

decades of family-led joinery built on 

William Richards sponsors the "heritage" award for the architects journal awards!

Bringing Heritage to the heart of London 

If you’ve travelled on the London Underground recently, you may have spotted our new campaign! William Richards Sash Windows is proudly featured across key Tube stations across south west London, showcasing our passion for beautifully crafted, energy-efficient timber sash windows. 

We’re celebrating these timeless features of British architecture while making it easier for London homeowners to discover our expertise in restoring, preserving, and enhancing sash windows - blending heritage craftsmanship with modern performance at the heart of the capital.

Designed for conservation areas

Enhances warmth and soundproofing

Preserves your existing frames

Replicates original details

Cost-effective Solution 

Durable, Low Maintenance

Heritage

Full draught exclusion system

Timber and glazing repairs

perfect for listed buildings

Full draught exclusion system

Cost-effective Solution 

Exceptional

Integrity, precision, and genuine pride.

Heritage sash upgrades

Enjoy a 10 year protected spray painted finish

Our Heritage Sash Upgrade package replaces your existing single-glazed sashes with double or vacuum glazed replicas, fitted seamlessly into your original, repaired, and draught-sealed frames.

This subtle, low-impact solution offers the best of both worlds — modern energy performance and historic authenticity.

Cost-Effective. Subtle Installation. No Interior Damage.

Designed for conservation areas

Enhance your home’s period character

Enhances warm & soundproofing

Retain historical fabric, minimise interior damage

preserves your existing frames

Preserving every Georgian or Victorian feature

Heritage sash upgrades

Double or vacuum glazing options available

Retain historical fabric and minimise interior damage

Enjoy long-term comfort and lower heating costs

Enjoy a 10 year protected spray painted finish

Our Heritage Sash Upgrade package replaces your existing single-glazed sashes with double or vacuum glazed replicas, fitted seamlessly into your original, repaired, and draught-sealed frames.

This subtle, low-impact solution offers the best of both worlds — modern energy performance and historic authenticity.

Cost-Effective. Subtle Installation. No Interior Damage.

Designed for conservation areas

Enhance your home’s period character

Designed for conservation areas

Retain historical fabric and minimise interior damage

Designed for conservation areas

Preserving every Georgian or Victorian feature

replicates orginal details

Double or Vacuum glazed options available

cost-effective  high quality solution

Traditional Craftsmanship

Perfectly Recreated.

Our time-served joiners take exceptional care to replicate every original detail of your sash windows. From the moulding profiles and glazing bars to the horn shapes and section designs, each new sash is individually crafted to mirror your home’s unique design and history.

By combining traditional techniques with precision tooling and premium materials, we ensure your upgraded sashes look and feel exactly as they did when first installed - only warmer, quieter, and more efficient.

Perfectly Recreated.

Our time-served joiners take exceptional care to replicate every original detail of your sash windows. From the moulding profiles and glazing bars to the horn shapes and section designs, each new sash is individually crafted to mirror your home’s unique design and history.

By combining traditional techniques with precision tooling and premium materials, we ensure your upgraded sashes look and feel exactly as they did when first installed - only warmer, quieter, and more efficient.

Traditional Craftsmanship

highest quality timber, glass and materials used

extensive set of insurance backed guarantees

8 - 10 week lead time on current orders

committed to tailored, affordable solutions

installed by our in-house specialist installers

Sash window Renovation

Warmer, Smoother, Safer

Bring your original sash windows back to life with our comprehensive renovation and draught-proofing service. 

Whether your windows are cold, rattling in the wind, or painted shut, we’ll restore them to smooth, energy-efficient operation, preserving your home’s character while improving comfort, warmth and security.

Full draught exclusion system

Timber and glazing repairs

perfect for listed buildings

Full draught exclusion system

Cost-effective Solution 

Discreetly fitted seals eliminate cold air, rattles, and dust ingress - without altering the appearance of your windows

Our skilled specialist installers repair or replace decayed timber, cracked timber and damaged glass to restore strength, stability and security.

Every sash is re-fitted and corded to snugly fit the movement of the box over the last century resulting in effortless operation.

No planning is required to maintain and restore your original sash windows

Our most affordable package, with impactful results


Our experienced sash window specialists deliver meticulous renovations that are both cost-effective and long-lasting. Each project enhances your home’s warmth, security, and durability, while preserving the sash windows original elegance. 

Using traditional joinery and precise restoration techniques, we ensure your sash windows operate smoothly, seal effectively, and retain their character for years to come - offering superior quality and comfort without the premium price.

Affordable Renovation

results

Exceptional

William Richards Sash Windows was born from a passion for craftsmanship. Founded over 40 years ago by William Partridge, a skilled luthier and woodworker, our company has grown from a small Shropshire workshop into one of London’s most trusted names in sash window renovation and replacement.

Still family-owned, we uphold the same principles of precision, honesty, and exceptional workmanship that shaped our beginnings. Every project is handled by a team of specialist designers, joiners and installers who blend traditional skill with modern efficiency to deliver outstanding, lasting results.

We know times are challenging, which is why we’re committed to offering cost-effective, transparent solutions without compromising on quality. Our goal is simple - to help London homeowners preserve their property’s heritage, improve warmth and security, and achieve lasting value through expert, affordable craftsmanship.

decades of family-led joinery built on 

Integrity, precision, and genuine pride.

Contact UsContact UsContact UsContact UsContact Usreplace my Sash WindowsKeep my sash windowsreplace my Sash WindowsKeep my sash windows