We’ve been a family run business for over 35 years in the trade of windows and doors in London and the surrounding areas.

We produce all aspects of bespoke joinery for a wide range of residential and commercial properties, architects, builders and other window companies.

Our reputation has been built over many years by our ability to produce the highest quality joinery products together with a traditional approach.

We are now entering a new chapter in Landmark Windows, where our primary focus will be on manufacturing high-quality joinery for our growing number of approved installation partners, architects & builders in London and the surrounding areas

Why did we decide to restructure the business?


For the past six months, we’ve been working on a number of exciting things.

The restructure was a process in the making, due to increased demand from other window and door companies, especially our long term clients.

From continuing to grow our team with incredible talent to developing some of the most innovative offer propositions in the joinery manufacturing space.

As a result, we want to continue our high standards in quality joinery products for our approved installer partners who will be vetted for suitability in the following areas:

✔️ Quality of workmanship
✔️ Local reputation in the marketplace
✔️ Financial Position

A company is then deemed suitable if they comply with the above criteria and we then look at inviting them to our workshop based in Waltham Abbey for further talks and training requirements.

What can our Approved Installer Partners expect from us?

❇️ High-Quality Joinery
❇️ Preferential Pricing
❇️ Quicker Lead Times
❇️ Personal Account Manager
❇️ We are Fensa registered and offer CPA insurance backed guarantees.

The Bottom Line

As we move forward in our journey, we are creating a sustainable platform for the growth of our Approved Installer Partners, making it a win-win for all involved.

We’ve made the process as smooth as possible, and have been working closely with our current partners to ensure our contribution to the future of the joinery sector remains the passion we all share.
We can help deliver a bespoke solution for your business.

Enquire now about becoming an Approved Installer Partner

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Planning Your Next Joinery Project?

When planning your next joinery project, the Landmark team will ensure we request the right type of information so that you can be confident you have the right product for your project.

Our considerable experience enables us to recommend the correct fixtures to create your perfect installation.

If your project is a protected building, listed or situated in a conservation area, so cannot have double glazed sash windows we can restore their old ones to their former glory or manufacture new single glazed sash windows to meet the requirements of these homes.

We work closely with Local Planning Authorities to ensure your new windows meet these planning standards.