Transform your Home with Stunning Sash Windows from North London's Trusted and Reliable Experts!

Our passionate team delivers exceptional quality and service, with 5.0 Google review scores.
Are your old, inefficient windows affecting your home's aesthetics and energy efficiency?

Deteriorating windows can cause drafts and high energy bills and compromise your home's security.

DIY solutions or low-quality window replacements will only provide temporary relief and may cost you more in the long run.

Our wooden frame sash windows are designed with both beauty and durability in mind. Crafted from the highest quality materials, our windows are built to last, providing you with years of enjoyment and comfort. Plus, our windows are customisable, allowing you to choose the perfect style and finish to match your home's unique look.

One of the most frequently asked questions we receive from our customers is whether we can replicate their existing windows.

The simple answer is yes. We can provide an array of sash window styles, all custom-made and tailored to your specifications. We can replicate any existing window design and glazing patterns, ensuring our customers' home appearance remains intact. We specialise in replacing and restoring wooden box sash windows in Victorian, Georgian and Edwardian properties in and around North London.

Don't hesitate to call us on 0790 3255625 and book a free home survey to chat more about your windows project. We also provide free no-obligation quotations.

We always encourage new customers to check out our reviews on Google, Houzz and Homify to see what previous customers say about our products, services, and work ethics.
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The work done by Marek and Natalia is outstanding.

We had all the sash windows replaced with double glazing, the window casements restored and two sets of french doors with windows replaced. The original style and features have been kept and the finish is immaculate. Marek understood the style of the Victorian terraced house and our want to keep the feel of the house as it is, showing us work he had done to similar properties in the area.

Marek is reliable, quick to respond to any questions we emailed in the lead up and incredibly hard working. There were no problems, no delays, and the quality of the materials is evident. The entire house has been brought back to life, suddenly so fresh and bright, and we can't wait to feel the effects of this new insulation in the winter (...).” review by Francesca
We're not just another window company. We are keepers of history, artisanal craftsmen, and passionate conservators, dedicated to renovating wooden sash window frames.
We deeply respect the lineage of the buildings we work on, acknowledging the stories and histories embedded within their architectural bones. Our mission isn't just to repair windows but to breathe life back into these period properties and preserve the heritage of English homes.
Over the years, we've learned that it's not about swiftly changing window frames; it's about the painstaking process of rehabilitating the existing timber frames, returning them to their former glory. Yes, it takes more time and a little more sweat, but the result is worth every minute spent. A Victorian, Georgian, or Edwardian window restored by our deft hands maintains its original charm, still humming with the echoes of its past. In our work, we see the essence of the building. The frames we work with are not just mere parts of the structure but intricate pieces of history that deserve our utmost care and respect.

We don't believe in taking shortcuts. For us, removing old frames and replacing them with new ones is indeed the fastest and easiest part of the job, but it's not what we stand for. We look beyond the superficiality of swift fixes, instead focusing on rehabilitating what's already there. This requires an in-depth understanding of architectural nuances, a level of knowledge and experience that we've gathered from years of working on period properties throughout North London's boroughs.

Occasionally, we encounter window frames that have endured the harshest of times and are, sadly, beyond repair. Yet, even in these instances, our commitment remains. Instead, we roll up our sleeves and meticulously replicate the style in every detail. The authenticity of our products is non-negotiable. This approach is what sets us apart. We are not driven by the clock or the monetary aspect. Our guiding light is the principle of preserving the past while breathing new life into it.

Quality is our topmost priority. We do not compromise, and our clients can vouch for this. Each window we restore is 100% true to its original style, a testament to the skill, patience, and passion we pour into every task. Our work resonates with our clients, leading to a trail of 100% satisfied customers. Most of our business stems from their recommendations, a fact that we take immense pride in.

Please feel free to get in touch with us to discuss your specific sash window needs.
Why Choose PM Sash Windows?

To Replace or to Repair? Our Ultimate Guide to Sash Window Replacement and Repair

With over 4 million period properties in the UK originated from the Georgian, Victorian and the Edwardian era, many British households are eager to preserve the original architectural heritage of their homes.

If you live in a period or listed property in Barnet, Haringey, Enfield, Hackney, Highgate, Muswell Hill or any other borough in North London, chances are you have box sash windows, also known as traditional sash windows.

These windows are a beautiful feature of period architecture, featuring two vertically sliding sashes within a timber frame, and are renowned for their elegant design, excellent ventilation, and energy efficiency when well-maintained. However, over time and without proper maintenance, they can become draughty, difficult to open and close, and prone to rot and decay. Therefore, inspecting your wooden frames regularly and undertaking required maintenance work to keep them in top-notch condition is crucial.

If you're considering replacing or repairing your box sash windows, you've come to the right place. At PM Sash Windows, we pride ourselves on offering first class sash window installation services throughout the picturesque boroughs of North London. Our experienced and attentive team is dedicated to providing the highest level of craftsmanship and customer satisfaction.

For detailed information about our specialised repair services, restoration methods, and preventive steps that can extend the durability, improve the functionality of your sash windows, and maintain the originality of your property, check out Sash Windows Repair.

For further information on how our top-notch, energy-saving, and elegantly crafted sash windows can enhance your home, please visit Sash Windows Replacement.
It was an absolute pleasure to work with Marek and Natalia.

Prompt, trustworthy and excellent attention to detail - we could not recommend them enough. They did an amazing job with our windows.

We started off with our two bay windows (refurb and replacement) but after seeing the quality of their work, they have since refurbed a few more throughout the house.

Thank you both - the windows have made such a difference.” review by Shab & Oualid

Timber Frames: The Premier Choice for Sash and other types of Windows in North London

While it may be subjective to label timber as superior to any other material used in window frames, it does offer several advantages that make it a popular choice for many homeowners in London.

Although today’s technology makes it easy to substitute wood with uPVC frames, traditionalists will agree that plastic cannot achieve the same effect. Wooden sash windows are a classic feature of English architecture, particularly in Georgian, Victorian, and Edwardian homes. These windows have several distinguishing characteristics, which have contributed to their enduring popularity.

Here are some reasons why timber is often considered a superior option for window frames: 

Aesthetic Appeal: Wooden window frames have a natural, warm, and timeless appearance that is difficult to replicate with other materials. This classic look can enhance the overall aesthetic of a property, adding charm and character to both traditional and contemporary designs.

Insulation Properties: Wood is a natural insulator, providing better thermal performance than most other materials, such as aluminium or uPVC. This helps to maintain a comfortable indoor temperature, reduce energy consumption, and lower heating and cooling costs.

Customisation: Timber window frames offer various customisation options, including various wood species, stains, and finishes. This allows homeowners to create windows that perfectly match their taste and the architectural style of their property.

Environmentally Friendly: Wood is a renewable resource. When sourced from sustainably managed forests, it is an environmentally responsible choice for window frames. Additionally, timber has a lower carbon footprint than many other materials, as it requires less energy to produce and can be easily recycled or biodegraded at the end of its lifespan.

Longevity: High-quality wooden sash window frames can last for decades with proper care and maintenance. Regular painting, sealing, and inspection can prevent common issues such as rot and warping, ensuring that the windows remain functional and attractive for many years.

Sound Insulation: Timber window frames offer better sound insulation than many other materials, helping to create a quieter and more peaceful living environment. This can be particularly beneficial for properties in busy urban areas or near noisy roads.
PM windows have done an absolutely amazing job of bringing the windows of our tired Edwardian house back to their former glory.

I chose Marek and his team based on their passion and I’m so happy with the result. Where they existed the original sash windows were revamped and double glazed and where they’d been replaced by 1980s plastic windows, they installed beautiful casements including some detailed woodwork to mirror the originals.

It was a pleasure to work with Marek and his team and all the neighbours have been remarking on how much better the house looks. I’d have no hesitation recommending Marek and his team to others. The work was completed in December and the team was tidy and conscientious.” review by Bec
Ready when you are
Please feel free to contact us for a complimentary Windows survey.
Use our online form to request this service.

You can also reach out to us on 0790 3255625. We are here to ensure your experience with us is smooth, satisfactory, and tailored to your needs.

Though we primarily serve North London, we're also enthusiastic about assisting customers from surrounding areas.

Once your request is received, we will respond within two business days to arrange a visit to your home. Our expert team is always eager to address any queries or concerns you might have about the services and products we provide.

We look forward to working with you and enhancing your living space.
Free Windows Survey Request form

Frequently Asked Questions

Timber sash windows are a beautiful and durable addition to any home or building in North London. However, like any other feature, they require occasional maintenance and repairs. In this section, we aim to answer your key queries about our services. We understand the unique charm and appeal of wooden sash windows and are here to help preserve their beauty and functionality.

Whether you're considering restoring your existing windows or installing new ones, these FAQs will provide information about our process, the benefits you can expect, and our commitment to quality. We are also available to answer any questions about any type of windows you're after. Don't hesitate to contact us with any queries you may have.
Q: What does the process of wooden windows installation and restoration usually involve?
A: The process typically begins with a thorough assessment of the current state of your wooden windows to determine the extent of the necessary work. Depending on the condition, this could range from minor repairs to a complete replacement. Once the survey is done, we proceed with either the repair, restoration or installation of the new wooden sash windows, making sure to preserve your property's original aesthetic and style.
Q: How long does it usually take to replace sash windows?
A: The timeframe for sash windows replacement depends on several factors, such as the size and quantity of the windows, the complexity of the design, and whether it's a straight replacement or requires structural changes. Replacing a single sash window can take half to a full day.
Q: What are the typical signs that my sash windows need repair or replacement?
A: Common signs that your sash windows may need repair or replacement include difficulty opening and closing the windows, draughts coming through the windows, decayed or rotten timber, cracked or loose glazing, and noticeable noise intrusion. If you notice any of these signs, we recommend getting a professional to assess the condition of your windows.
For more information visit Sash Windows Replacement and Sash Windows Repair.
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When it comes to spending money on windows rather than a lovely holiday - people might save on the windows for a holiday upgrade - all I can say is - Don't do it - Remember the Winter! Spend the money on quality that is going to last for years - PM Sash Windows is OUTSTANDING quality.

Marek is a great guy who is passionate about his windows - and this shows - if anyone will help you decide that quality matters he is the man - and now I'm warm in my house - with beautiful windows - that are double - glazed to the INSURERS and Council specification - guaranteed for a minimum of five years.

Sadly it's a rare an experience to encounter a true professional that makes it a pleasure from start to finish - their fit out was fast, efficient, and above all TIDY - they left the place cleaner than when they started.

They are A great team and I RECOMMEND THEM 100%.” review by Stewart