The Cost of Crittall Doors: What You Need to Know
- June 29, 2026
- General
The industrial, slim profile aesthetic of genuine steel doors continues to be one of the most sought-after features in premium British architecture. Whether you are aiming to flood a dark hallway with natural light or separate a kitchen and dining space without losing a sense of openness, these frames offer unmatched timeless elegance.
When planning a home renovation, one of the first questions homeowners ask involves the financial commitment. At Lightfoot Windows, we take pride in our long-running partnership with Crittall Windows, making us the largest and most experienced Crittall specialist within the Crittall network. Because every single project we undertake is completely bespoke, the cost of Crittall doors varies based on a variety of structural and design factors. Understanding these elements can help you budget effectively for your home improvement project.
The factors shaping your Crittall investment
You cannot apply a standard, off-the-shelf price tag to authentic steel doors. Every frame is fabricated to order, meaning your project’s final quote is directly influenced by your choices regarding size, placement, and architectural detail.
The initial investment covers precision engineering, high-grade steel windows or door profiles, specialised coatings, and factory-controlled glazing. To assist your understanding of where your budget goes, it helps to break down the specific components that installers evaluate during a consultation.
Choosing your configuration: single, double or sliding
The structural layout of your door system dictates the amount of steel and complex hardware required for manufacturing.
- Internal Doors versus External Doors: Internal screens and partition dividers typically require less complex weather-stripping and thinner glass panes, making them a different structural proposition compared to heavy-duty external doors.
- French Doors: A classic choice for garden access, a pair of steel French doors requires precise alignment and central locking mechanisms.
- Bespoke Sliding Systems: If your project calls for expansive glass walls that slide away, the specialised tracking hardware and structural reinforcements will increase production costs.
Scale, proportions, and custom architectural features
The physical dimensions of your structural opening play a major role in pricing. Larger openings naturally demand more raw materials, heavier glass panes, and more complex transport logistics.
Beyond standard height and width, custom designs often incorporate additional structural elements to maximise natural light. Adding top lights (the glass panels situated above the door frame) or side screens requires extra steel profiles and interlocking joints. While these additions increase the overall cost, they drastically maximise the architectural impact of the installation.
Thermal technology and glazing specifications
The type of glass chosen affects both the price and the everyday comfort of your home. Modern external installations must comply with strict thermal efficiency guidelines, including Part L building regulations.
To prevent unnecessary heat transfer and reduce heating costs, external doors employ advanced double glazing filled with insulating gas, working alongside thermally broken steel frames. For internal style doors where heat retention is not a factor, single acoustic or decorative toughened glass is often preferred. Upgrading to specialised performance glass, such as solar control coatings or enhanced acoustic lamination, will alter the baseline product cost.
On-site complexity and structural preparation
The physical installation process requires specialist craftsmanship. Steel is an incredibly heavy material, and the slim margins of Crittall profiles leave no room for error.
If your home improvement project requires structural alterations, such as inserting a new steel lintel to knock through a wall, the preparatory build costs will increase. Furthermore, handling large, heavy expanses of glass requires appropriate lifting equipment and experienced installation teams to ensure the frames sit perfectly plumb. Working with an accredited specialist ensures that your structural site conditions are surveyed with absolute precision before production begins.
What to expect when requesting a quote
When you receive a professional quote from an authorised specialist, it should be fully transparent and broken down into distinct stages. Installers provide comprehensive pricing that covers the final site survey, structural engineering checks, complete product manufacturing, delivery, and professional installation.
Realising the value of genuine steel craftsmanship
While uPVC or aluminium alternatives carry a lower initial price tag, authentic steel systems provide long-term value that alternative materials simply cannot replicate.
Crittall products are renowned for their exceptional durability and inherently low maintenance requirements. They are unlikely to warp, twist, or degrade over time. Investing in the genuine market leader protects your property’s architectural integrity and provides absolute peace of mind, frequently adding measurable market value to premium UK homes.
Start planning your project with Lightfoot Windows
Our commitment to quality shines through in our stunning range of authentic Crittall products, including traditional steel windows and modern double glazing options, providing homeowners across the UK and the Channel Islands with ideal solutions for their window and door needs.
To discuss your design ideas, understand pricing for your specific dimensions, or receive a tailored quotation, get in touch with our expert team today.
- Online Contact Form
- London Office: 0208 662 9090
- Milton Keynes Office: 01908 110 118