Preserving Your Heritage: Sash Windows Hertfordshire Specialist

With years of experience and a passion for heritage architecture, PM Windows proudly brings its sash window expertise to homes and period properties across Hertfordshire. From the picturesque lanes of St Albans to the charming streets of Watford, we specialise in the meticulous repair, renovation, and replacement of traditional timber sash windows.

At PM Windows, we believe every window holds history. Our mission is to restore that legacy while upgrading the windows to meet modern standards. Whether it's enhancing insulation, replacing damaged sashes, or installing double glazing sash windows in Hertfordshire, we tailor our services to each unique property.

We are trusted by homeowners in Hemel Hempstead, Potters Bar, Stevenage, Hertford, and Welwyn Garden City, providing an exceptional level of craftsmanship and care with every window we touch.

Leading sash window specialists in Hertfordshire - dedicated to reviving your home’s character, one handcrafted window at a time.

Sash Window Replacement in Hertfordshire

Specialists in Sash Window Repair & Replacement in Hertfordshire

From the historic market town of Hertford to the garden city charm of Welwyn, Hertfordshire is home to a wealth of period properties, each with its own unique character. One of the most distinctive and defining features of these buildings is the traditional timber sash window - a hallmark of classic British architecture. At PM Windows, we specialise in maintaining, restoring, and enhancing these features to ensure they remain as beautiful and functional as the day they were first installed.

Our sash window services are carefully designed to preserve historical authenticity while upgrading performance, comfort, and security to suit modern living. Whether you’re dealing with decayed wood, poor insulation, or windows that no longer open or close properly, we provide tailored solutions that respect your home’s original character.

We offer:

Sash Window Repairs - Tackling common issues such as rattling sashes, rotting timber, broken cords, misaligned pulleys, and deteriorated putty or beading
Sash Renovation - Restoring visual appeal, improving insulation, sealing draughts, and strengthening structural integrity
Sash Replacement - Handcrafting bespoke timber sashes and frames to replicate period designs, ideal for irreparable or heavily altered windows
Double Glazing Upgrades - Integrating slimline double-glazed units into traditional frames for improved energy efficiency, without compromising the original aesthetic

Our holistic approach ensures that the charm of period windows is never lost to time, shortcuts, or generic replacements. Every component is carefully considered - from the choice of timber and glazing to the final paint finish - ensuring longevity and seamless integration with your property’s style. Whether you're situated in a conservation zone in Potters Bar, restoring a listed property in St Albans, or modernising a countryside home near Stevenage, we deliver a balance of tradition and innovation that enhances your living experience while respecting the past.

Finding the Right Balance: Sash Window Repair vs Replacement

Deciding between repairing or replacing sash windows can be challenging. That’s where our local Hertfordshire experience comes in. We assess the condition of each window carefully-often, just the sashes need replacing, leaving the original box frame intact.

If repair is viable, we restore pulleys, fix cords, seal gaps, and treat any rot, all while retaining original features. This is often the most cost-effective and conservation-friendly option.

In cases where decay is too advanced, we offer full timber sash window replacements crafted to mirror the original profiles. These modern replicas include discreet double glazing, draught-proofing, and high-security fittings-especially valuable in busier areas like Watford or Hemel Hempstead.

Whether it's repair or replacement, our goal is always the same: to respect the building's heritage while enhancing comfort and longevity.

At PM Windows, our deep understanding of sash windows and dedication to quality make us the trusted choice for Hertfordshire homeowners.

Book Your Free Sash Window Survey in Hertfordshire

Thinking about refreshing your period windows or doors?

We offer a free sash window survey to homeowners across Hertfordshire. From St Albans to Welwyn Garden City, we provide professional assessments and tailored recommendations.

Our team evaluates every detail - checking for draughts, decaying wood, stuck sashes, or inefficient glazing. Then we outline a personalised strategy for repair, restoration, or replacement.

Whether it’s rot, draughts, or just aesthetics, we’re here to help you make the right decision. Get in touch and book your free survey with PM Windows today.

Free Windows Survey in Hertfordshire

Breathe New Life into Your Windows: Sash Renovation Hertfordshire

Renovating sash windows is often the most satisfying way to enhance your property. Our renovation service revives tired windows while upgrading their performance-perfect for homeowners across Stevenage, Hemel Hempstead, and the surrounding countryside.

Our typical renovation process includes:

Weatherproofing & sealing: Protecting against draughts and leaks
Glazing upgrades: Including toughened or double-glazed options
Timber restoration: Replacing decayed sections with rot-resistant wood
Insulation improvements: Helping reduce energy bills
Paintwork renewal: A fresh look that complements your façade
Mechanical tuning: Ensuring smooth, silent operation

Each step respects your window’s heritage. We match original profiles, apply traditional joinery, and use breathable paints-all while improving thermal efficiency. Whether you own a Georgian home in Hertford or a Victorian cottage in Potters Bar, our renovations keep its character intact.

We take a thorough, detail-focused approach to sash window renovation in Hertfordshire - restoring their original beauty while enhancing performance and longevity.

Local Services Across Hertfordshire and Surrounding Areas

At PM Windows, we proudly offer our sash window services to homeowners across Hertfordshire and its surrounding areas. Whether you live in a bustling town or a peaceful village, our team delivers the same high standard of craftsmanship and personalised care.

Our sash window services cover the entire Hertfordshire region, including:

St Albans
Watford
Hemel Hempstead
Potters Bar
Stevenage
Hertford
Welwyn Garden City
And surrounding villages and rural properties

Each town has its own history and architectural nuance. At PM Windows, we understand these differences and adapt our approach accordingly, whether it's a Victorian terrace in St Albans or a Georgian townhouse in Hertford.

Why Hertfordshire Homeowners Trust PM Windows

From elegant townhouses to countryside retreats, homeowners across Hertfordshire turn to PM Windows for reliable sash window services.

We’re proud to be:

Decades of experience with period sash windows
FENSA registered
Fully insured
Highly recommended with a track record of 100% satisfaction
Free, no-obligation surveys across Hertfordshire
Handcrafted solutions tailored to your home

With us, you're choosing experience, passion, and local expertise. We understand the nuances of working in conservation areas, adapting to each property’s architectural DNA.

Your home deserves windows that are not only beautiful but also energy-efficient, secure, and durable. Whether you need sash window repairs, renovation, or double glazing in Hertfordshire, we deliver solutions that respect your home’s heritage while enhancing its future.