Double Glazing Harpenden

High Quality

Transform Your Harpenden Home with Crown

Our team works with the knowledge that 100% customer service always comes first.

• Upgrade your living space with Crown’ high-standard installation services and double-glazing services.
• High-quality windows including uPVC windows, lead windows, tilt & turn windows, casement windows, sliding sash windows, flush sash, and Georgian styles, all designed for superior energy efficiency
• Wide range of door styles including internal doors, bifold doors, patio doors, French doors, uPVC doors and composite doors
• Premium quality conservatory styles and roofing options
• FENSA Certified
• 100% Customer Service Guarantee
• Free No Obligation Quotation

We have delivered outstanding results over many years, and always treat every customer as if they are our first.

Rely On Us

What Makes Crown Stand Out in Harpenden?

Crown’s reputation for top-tier windows, doors, and conservatories in Harpenden is well-earned, as confirmed by our extensive 5-star ratings. Harpenden’s unique blend of Victorian, Edwardian, and modern homes presents both design and regulatory challenges, all of which we navigate with ease.

Our FENSA certification ensures that all installations meet the stringent energy efficiency and safety standards laid out in Parts L and Q of the UK Building Regulations. These local building codes are essential to ensure your windows and doors not only look great but also function efficiently in Harpenden’s climate, where insulation is key to managing both winter cold and summer heat.

Our experienced and qualified team is known for reliability, customer satisfaction, and product excellence. We work closely with Harpenden homeowners to provide solutions that blend seamlessly with the area’s architectural heritage, making us the number-one choice for quality and service​

No1 Conservatory Company In Harpenden

Choose Crown for high-quality conservatories in Harpenden, where our understanding of local architectural styles—ranging from Victorian to modern designs—ensures that every addition complements your home’s character. Our FENSA-certified fitters guarantee compliance with UK building regulations, including Part L for energy efficiency and Part K for glazing safety. This ensures not only a flawless installation but also that your conservatory meets Harpenden’s unique climate demands, where well-insulated spaces are essential to handle both mild winters and warmer summers.

Each luxury conservatory we install comes with a 10-year warranty, providing peace of mind. Our proven quality is backed by 5-star ratings from satisfied customers, with recommendations from 5/5 clients and an impressive 4.9/5 online rating. In the unlikely event of an issue, our team will address it promptly to ensure your complete satisfaction.

We also offer a free, no-obligation consultation, where you can sit down with our experts to discuss your dream conservatory. Using 3D technology, we provide a detailed preview, so you can visualise exactly how the finished product will complement your home​