The Heritage Window Company
Replacing Steel Frame Windows With Aluminium Frames
The ultimate steel window replacement:
Period aesthetic, modern efficiency.
Upgrade inefficient steel window frames today
Do you currently own traditional steel windows and need a window replacement?
The Heritage Window Company can replace and upgrade your traditional steel metal windows with slimline aluminium.
Our slimline aluminium windows make the perfect steel-framed window replacement, keeping with the original aesthetic of steel but with all the benefits of aluminium.
The Heritage Window Company’s aluminium windows and frames are British-made, designed in-house by our expert team to replicate the aesthetic of steel, and boast greater viewing angles, increased durability and better thermal efficiency.
Why replace steel window frames?
Steel window frames are beautiful, but they’re also costly, outdated, heavy and hard to repair. Aluminium windows capture the style of metal windows but with better quality-of-life improvements for the home.
Replacing traditional steel windows with new steel frames is expensive, susceptible to rust and less energy efficient than aluminium windows.
The ultimate steel metal window replacement, our aluminium range is lightweight, durable, energy-efficient and boasts superior viewing angles. Slimline aluminium frames are a thin and mighty solution for homes, available in double-glazed and secondary-glazed options.
Ideal for older properties in dire need of renovation, our windows can be fully customised and cut to fit any shape, size or aesthetic.
The benefits of aluminium metal windows
More durable than UPVC
Aluminium windows outlast UPVC by up to 25 years, making them a smarter long-term choice.
Advanced thermal performance
Maintain a comfortable indoor climate year-round – cosy in winter, cool in summer – and cut down on energy costs.
Windows as unique as you
Create windows as unique as your home, with 200+ RAL colours and plenty of ancillaries to choose from.
Rated “excellent” by our customers
With 91% of our reviews rated five stars on Trustpilot, our dedication to quality and customer care speaks for itself.
The perfect fit for listed homes
Give your traditional property a modern boost – aluminium replicates heritage and steel metal window styles, with none of the old drawbacks.
Welcome light into your home
High-performance glazing and the thinnest metal frames deliver maximum natural light with minimal glare.
Any shape, made to measure
From arches to L-shapes, we specialise in made-to-measure windows – all installed by our experienced, in-house team.
Peace of mind, guaranteed
Your deposit is protected from day one via the IWA, and once your installation is complete, you’ll receive a 10-year guarantee certificate from both IWA and FENSA.
Replacing steel metal windows on listed homes
We replace steel window frames in homes of all ages, including listed, modern, architectural, commercial and residential buildings.
Producing all our windows in-house in the UK, we oversee your windows’ design, production and installation. As older properties are often unique in size and shape, we offer a bespoke service to cut windows to fit any shape, curve or size.
Trusted to replace steel window frames
We are a client-first window manufacturer – all of our windows come with a 10-year insurance-backed guarantee. As soon as you pay your deposit, your project is registered with the IWA, granting instant protection. In order to match your windows to the rest of your home’s exterior, we also produce doors and ancillaries for a fully cohesive aesthetic.
