Investing in high-performance windows is one of the best ways to improve a home’s comfort, curb appeal and resale value. Whether you’re building a new house or replacing old windows, it’s important to find a window company that offers a wide selection of options, expert installation and extended warranty coverage. Use Houzz’s free service to get matched with top-rated local pros and compare quotes for your project.

Top window companies in Hamilton offer a wide range of styles and materials, with options that suit every budget and aesthetic preference. Some of the best Hamilton window companies also provide a variety of energy-efficient features that help reduce energy costs and extend the life of your new windows.

When choosing a window company, you’ll want to verify that the windows and doors they install are backed by the manufacturer and accredited by leading industry associations like the Fenestration and Glazing Industry Alliance (formerly AAMA). You can also check reviews, ask for customer references and look for local references on Houzz. Buying all-new windows at once can save you money as well — window sellers often raise prices on individual orders, so bundling your order may unlock discounts.

For homeowners in search of both style and functionality, double-hung windows are a great choice. These versatile windows open both the upper and lower sashes for full ventilation and unobstructed views. Many models meet ENERGY STAR requirements, which can help save you money on energy bills in Hamilton’s varying climates.

Sliding windows are a popular option for Hamilton homes because they’re space-saving and require little exterior space to operate. The sleek designs can also help maximize light and view in a room. Sliding windows are available in vinyl or wood, and are offered at a number of budget-friendly price points.

Bay and bow windows add architectural interest to a home and can increase living space or seating areas within the home. Many also feature low-emissivity coatings to help reduce UV rays that can cause fabrics, carpet and furniture to fade. These windows are available in vinyl or wood and start at around $700 installed for a basic model.

QSI Windows & Doors specializes in energy-efficient vinyl windows and has served Hamilton homeowners since 1979. They offer casement, awning, slider and specialty windows in a wide array of styles and sizes, with customizable features. They also offer steel and fiberglass entry doors and vinyl or wood french swing and sliding patio doors starting at around $1,800 installed.

Panorama Windows & Doors is a premier fiberglass window replacement company serving residential and commercial clients. Their innovative glass options, including triple pane and inert gas fills, help make them an excellent choice for the varying temperatures of Hamilton. Their products also have an environmentally friendly fiberglass exterior, which makes them more durable than traditional aluminum frames.

When planning a window installation, it’s important to choose the right timing. It’s ideal to schedule a window replacement in the late fall, when outdoor temperatures are milder. This allows the new windows to seal properly and settle in the frame. However, some window types, such as picture and bay windows, are best installed in the spring or summer to avoid damage from harsh weather conditions.