
About Us
We produce, supply, and install high-performance uPVC and aluminium windows and doors

About Us
We are a family-owned Irish business with over 30 years of experience in manufacturing high-quality PVC windows and doors. From the heart of our local community in Monaghan and Cavan, we’ve been proud to extend our expertise beyond the region, helping homeowners throughout Ireland with their window and door needs.
Our commitment to quality is at the core of everything we do. We provide top-tier frames and expert installation services, all while maintaining competitive pricing and fast lead times. We work exclusively with the best products available on the market, partnering with leading security and hardware brands to ensure your home is safe, stylish, and energy-efficient.
Our strong relationships with trusted suppliers mean we’re always ahead of industry trends, ensuring that you benefit from the latest innovations in window and door technology. At Mallon Windows and Doors, we’re dedicated to delivering top-quality installations on time, every time, leaving you with a home that’s secure, beautiful, and built to last.

What Our Customers Say
Best in the market. Professional, fast, and high-quality products at a great price. Highly recommend using Mallons Windows & Doors!
Sarah K.
Homeowner, Monaghan
Quick turnaround and a very tidy installation. Ryan and the team really go the extra mile for their customers. An absolute pleasure to deal with.
Francis McQ.
Homeowner, Cavan
Fast, high-quality, and professional. Patio doors were fitted in under 2 weeks.
Highly recommend
Kitija G.
Homeowner , Louth
1.
Initial Consultation
Contact us via phone, email, or our website to discuss your project. We review your architectural drawings or identify your specific replacement needs. Our team focuses on your style, performance, and security goals from the start.
2.
Site Visit & Survey
We conduct a precise technical survey of your property. For new builds, we coordinate directly with your builder or architect. For replacements, we measure every opening to ensure a perfect custom fit.
3.
Product Selection & Design
Select your preferred frame profiles, colors, and finishes. We help you choose the best glazing and locking systems for your home. Every design is tailored to meet building regulations and architectural style.
4.
Quotation & Specifications
You receive a detailed, itemized written quotation. This document covers all supply, installation, and disposal costs. We clearly outline lead times and warranty information with no hidden fees.
5.
Order Confirmation
We verify all final measurements and technical specifications. Manufacturing begins once your deposit is received. Every window and door is custom-made specifically for your project.
Our Window & Door Ordering Process
Transparency Builds Trust
Whether you’re building a new home or upgrading existing windows and doors, we follow a clear, structured process to ensure the best results from start to finish.
We are committed to sharing our entire process with you, ensuring you have a clear understanding of exactly what is involved. Our goal is to make you fully aware of the value and scope of the services we provide, so you can move forward with confidence.
6.
Manufacturing
Your units are crafted using high-quality uPVC and energy-efficient glass. We monitor the production quality at every stage. Our team provides regular updates on your installation timeline.
7.
Installation
Our experienced team manages the full installation process. We coordinate with your construction schedule or carefully replace old units with minimal disruption. Every unit is professionally sealed, insulated, and finished.
8.
Final Inspection & Aftercare
We perform a rigorous final check of all installed products. Our team demonstrates the locking systems and provides care instructions. You receive full warranty documentation and ongoing aftercare support.
Frequently asked questions





