FENSA Registered
Established Since 1988
GGFI Insurance Back Guarantee
About Us
Avanti Windows has been established in Grantham since 1988. We are a small family-run company with a fantastic team with a plethora of knowledge within our field. We take on domestic work as well as large commercial installations. Dedicated to ensuring that you stay within your budget and requirements, we offer cost-effective solutions when you need them. Call us for a quotation today.
Buyers Guide
Our Grantham team have the best window installation tips, including:
Security Avanti Windows offers robust multi-point locking mechanisms with exceptional security. All our installations fall under the ‘Secured by Design’ police initiative.
Energy Efficiency Our high-grade low-emissivity windows keep your home cool in summer and warm in winter. All our installations have ‘A’ rated argon-filled glass. The UPVC profile we install is a market leader across the board and Energy efficiency is one of our priorities.
Ventilation Current building regulations require that new windows must have trickle vents. These help with ventilation and reduce dampness. We can help guide you through these regulations and help you keep up with current standards.
Our Services
We understand that maintaining the look of your property while adding security is important. Keep your loved ones safe and cut down on your energy bills by letting our professionals transform your home with energy-efficient high security windows and doors.
At Avanti Windows, we pride ourselves on being ‘Conservatory Experts’. We can guide you through with a full service from start to finish so you won’t have to worry about dealing with different trades. We can organise our own bricklayers, electricians and plasterers to ensure the project goes smoothly from start to finish.
That’s why we’re Grantham’s top choice for professional window and door installation!
