WE INSTALL
Every Sash Vault window is installed by our own team
The same high standards that guide our manufacturing apply to every installation. We don’t outsource. We don’t delegate to third parties. Every window we produce is installed by our own trained professionals – the same people who understand the system from the inside out.
Our installation team works with the same care, precision and discretion that defines our brand. Whether we’re working on a private townhouse, a listed estate, or a central London flat, we respect the building and the people who live in it.
We control the full process – from the first site visit to the final locking check. No guesswork, no rough fitting, and no compromises. We believe installation is not just a service – it’s a final expression of the quality we’ve built into every window.
Accurate measurements, conservation advice, and practical answers
Before we build or install anything, we carry out a full, professional site survey. This is not a sales visit. It’s a detailed assessment by trained Sash Vault specialists – focused on precision, planning, and problem-solving.
We begin by taking exact physical measurements, recording structural details, wall depths, opening configurations, and anything else that may affect the window design. We assess access, note conservation requirements, and ensure that your new windows will meet planning rules where required.
It’s also your opportunity to ask questions. We explain how the system works, which options are available, and what best suits your property. Whether your concern is heritage approval, ventilation, security, or visual accuracy – we’ll address it clearly on site.
This survey ensures your quotation is based on facts, not assumptions – and your installation is prepared properly, from day one.
We manage the entire process with care and precision
Once your windows are built, our own team carries out the installation – no third parties, no handovers. We manage the full process, ensuring every detail is handled by professionals who understand the product from the inside out.
Our installation team is discreet, tidy, and well-trained. They arrive on time, protect surrounding surfaces, and work with care – particularly in heritage buildings or occupied homes. Whether we’re replacing a single sash or fitting a full property, the work is carried out methodically and with minimal disruption.
Because everything is built in-house, there’s no margin for error. Every measurement, joint, and locking point is known in advance – allowing for a clean fit and seamless finish.
We don’t leave until every component is tested, adjusted, and checked against our installation standards. And because the same company builds and installs your window, there’s only one point of contact – and full responsibility from beginning to end.
Your building’s heritage is safe in our hands
Heritage buildings require more than technical skill – they demand understanding, patience, and care. At Sash Vault, we specialise in installing secure sash windows in listed and conservation-area properties, where every detail matters and disruption must be kept to a minimum.
Our team is trained to work within delicate interiors and protected façades. We take time to safeguard original features, protect surrounding finishes, and coordinate our work with heritage standards. Whether it’s lime plaster, original stonework, or timber surrounds – we treat it with respect.
Installation is carried out quietly and efficiently, without harsh cutting or invasive methods. We maintain original lines and profiles, ensuring that your property retains its historical integrity while gaining all the modern security hidden inside our frames.
When required, we also liaise with conservation officers and heritage consultants to ensure your installation supports the building’s long-term protection.
This is more than fitting a window. It’s preserving a structure – while making it stronger.
Glazing, locks, movement, and finishes – all thoroughly inspected
Our installation doesn’t end when the window goes in – it ends when it’s flawless. At Sash Vault, every fitted unit goes through a thorough final check before we consider the job complete.
We test lock engagement, sash movement, sealing, ventilation position, and overall function. Every frame must slide smoothly, close securely, and hold its fixed positions with precision. If anything is not perfect – it’s adjusted immediately.
We also inspect visual alignment, paintwork, joinery joints, and ensure that all visible finishes are clean, undamaged, and consistent with our standards. Minor on-site refinements are made by our team if needed – we come prepared.
No subcontractor rush. No clipboard sign-offs. Just detailed inspection by people who know what to look for – and won’t leave until it’s right.
Guidance, service, and expert advice whenever you need it
At Sash Vault, we take pride not only in how we install, but in how we support you afterwards. Once your windows are fitted and signed off, we remain available for anything you may need – from basic care advice to system adjustments or long-term servicing.
We provide full aftercare documentation, including instructions for safe cleaning, correct usage, and long-term maintenance. If you have questions, our team is easy to reach – and ready to help.
Should your windows ever require attention, we respond promptly, with the same professionalism and respect shown during installation. And because we build and install everything ourselves, there’s no confusion about responsibility – we stand behind it all.
Your home deserves lasting performance. We’re here to make sure it delivers.
Warranties that reflect the quality we build into every frame
Every Sash Vault window comes with a warranty that reflects the strength of our design and the trust we put in our materials, process and people.
Our clients receive clear, structured guarantees, covering both manufacture and installation. In many cases, we offer extended or lifetime warranties on the internal structure and fittings – because we know how our system performs over time.
There’s no vague small print. Our terms are transparent and fair, designed to reassure rather than restrict. If there’s ever a concern, you deal directly with us – no call centres, no third parties, no delay.
We guarantee more than just the window. We guarantee the experience.
Let us assess, advise, and prepare your tailored quote
If you’re ready to explore secure, handcrafted sash windows for your property, the next step is simple – book a professional site survey.
Our trained team will visit your property, take precise measurements, assess structural details, and guide you through the full process. Whether you’re replacing a single window or planning a full-house installation, we tailor every quote to your home and priorities.
There’s no pressure or obligation. Just clear answers, professional insight, and a quote you can trust.
59 Chalton St
London, NW1 1HY