Nationwide
Lead Times
Installation
Finance
Stormproof Windows
Built to withstand all weather conditions
Stormproof windows are designed to offer exceptional protection against the harshest British weather while preserving, and often enhancing the character of your home. At Spittlywood, we combine traditional joinery techniques with cutting‑edge engineering to create stormproof windows that balance strength, elegance and efficiency. Whether your property faces driving coastal winds, heavy rainfall or freezing winters, our stormproof range provides robust, long‑lasting peace of mind without compromising on style.
Crafted using modern materials and time‑honoured craftsmanship, these windows achieve outstanding performance in both contemporary and period properties. Their refined profiles and clean sightlines allow you to maintain a timeless aesthetic while adding essential weather resistance and security.
Start The Process
To get a fill in as many details as possible.
Fill in as many details as possible. We’ll use this to prepare an estimate and reach out soon to discuss your needs.
If you’d rather discuss your project now, call 01233 730816
Stormproof Windows
Our stormproof windows come in a wide range of designs from authentic period styling to sleek contemporary lines allowing you to choose a look that complements your home perfectly. This versatility makes them ideal for everything from traditional cottages to modern new‑builds.
Each window is made to order in our Kent workshop using:
- State‑of‑the‑art manufacturing technology
- Skilled hand‑finishing
- Precision‑engineered components
This ensures every product meets the highest standards for durability, insulation and long‑term stability.
Bespoke Joinery Design
Expert Craftsmanship & Installation
Sustainable Timber & Finishes
Reliable Protection
Without Compromise
If your home needs protection from the elements but you don’t want to sacrifice its character, stormproof joinery is an ideal solution. These windows offer:
- Superior weather resistance
- High levels of insulation
- Elegant, refined aesthetics
- Customisable features
Our craftsmen take time to understand your environment including exposure levels, coastal conditions or prevailing winds to ensure your windows are tailored for optimal performance.
Frame Options:
- 78mm x 57mm Head & Jambs
- 78mm x 68mm Cill
- 78mm x 68mm & 78mm x 90mm
- 78mm x 68mm Transom & Mullion
Sash Options:
- 64mm x 57mm Top Rails & Stiles
- 67mm x 57mm Bottom Rail
- 57mm x 57mm Rail Option (Non PAS24)
Sash Profile:
- Ovolo
- Lambs Tongue
Cill Projection:
- Flush
- 35mm
- 60mm
- 85mm
- 100mm
Double Glazing U-Values
1.2 W/m²K*
*U-Values from, various factors influence U-values,
such as window size.
Triple Glazing U-Values
0.9 W/m²K*
*U-Values from, various factors influence U-values,
such as window size.
Vacuum Glazing U-Values
0.7 W/m²K*
*U-Values from, various factors influence U-values,
such as window size.
Recommended Timber
For long‑term stability and weather resistance especially in exposed locations we strongly recommend:
- Accoya
- Red Grandis
These timbers provide consistent, long‑lasting performance.
Stormproof FAQ'S
Do you have experience working with listed buildings?
Yes, we have extensive experience producing stormproof joinery for listed and heritage homes, designed to perform in harsh weather while retaining traditional style.
Do you supply and fit stormproof products?
Yes. We provide both supply-only and installation services, and we often collaborate with contractors on exposed or coastal projects.
Can you provide section drawings for planning permissions?
Yes, we can prepare section and elevation drawings as part of your planning or conservation approval process.
What timber do you recommend for stormproof joinery?
We recommend Accoya and Red Grandis for their superior strength, weather resistance, and long-term dimensional stability.
Are stormproof windows and doors secure and insulated?
Yes all designs can be manufactured to PAS 24 standards and include high-performance glazing and seals for excellent energy efficiency.
What is PAS 24 and how does it benefit stormproof products?
PAS 24 is a British certification that guarantees your joinery has been tested for both durability and resistance to forced entry.
Still Have Questions?
If you have any additional questions get in touch via phone or email:
Trusted & Accredited

Fensa Approved
Our installations meet all current building regulations and are fully certified, giving you confidence that everything is done properly and compliantly.

Trading Standards Checked
Independently approved for fair trading and professional standards, so you can trust who you’re dealing with from start to finish.

PAS 24 Security
Our products are tested to meet strict security standards, helping to keep your home protected from forced entry.

Secured By Design
A police‑backed scheme that confirms our products are designed to deter crime and improve home security.
Form and Function
Stormproof Windows boast superior protection from the elements and considerable aesthetic appeal.
Weather Resistance
Stormproof doors and windows are engineered to withstand the harshest weather conditions to keep your home safe and comfortable.
Increase Property Value
Investing in high-quality stormproof doors adds value to your property and can help to persuade buyers.
All-Year-Round Protection
Advanced sealing systems and durable materials ensure that water, wind, and air infiltration are minimised, providing reliable protection year-round.
Energy Efficiency
U-values from 1.2 W/m²K (U-values stated are for double glazed. Can be improved with triple glazing). Lower ratings possible with vacuum glass.
Improved Security
Our Stormproof doors and windows offer peace of mind with their robust construction and advanced locking mechanisms.
Alu Clad Windows
Casement Windows
Sash Windows
French Doors
Terms
Lift & Slide Doors
Heritage & Listed Properties
We have extensive experience producing stormproof joinery for listed buildings and heritage homes, ensuring modern performance while respecting traditional style.
- Section drawings
- Elevation drawings
- Technical documents
These support planning submissions or heritage approval requirements.
Team up with Spittlywood
Become a Trade Partner
When you become a trade partner with Spittlywood, you get access to a whole host of benefits such as trade discounts, regular news articles relating to both Spittlywood’s latest events/product launches and industry news, making sure you keep up to date with the latest materials and methods in the window industry. There is also access to a large bank of downloads and CAD drawings to assist with designing and specifying the right windows.
We intend to build trade partnerships with trusted professionals to deliver the best quality products and services.
UK‑Wide Delivery &
Installation Across the South East
We offer stormproof windows on a supply‑only basis across the UK or can provide full installation throughout Kent, London and the South East. We also work closely with builders and contractors, especially on projects in exposed or coastal environments.