About This Project:
Replacement Windows and Siding Installation
Dorchester, MA
Drafty windows were putting a damper on this Dorchester home’s comfort levels. This homeowner faced the challenge of outdated and drafty windows that were likely losing up to 30% of the home’s energy. Realizing the need for new replacement windows in Dorchester, MA, this homeowner reached out to us for energy efficient window installation. Coastal to the rescue!
Replacement Windows in Dorchester, MA: The Process
Initially, the homeowner had attempted to mitigate the problem by covering the windows with plastic—a common but temporary solution that often falls short. While plastic can help reduce some drafts, it is not airtight and does not address the thermal transfer through the glass and frames, making it an ineffective solution for substantial energy savings.
Window Installation Details
New energy-efficient windows were installed throughout the master bedroom and kitchen, significantly enhancing both comfort and performance. These replacement windows were specifically chosen for their superior insulation properties and the lowest draft ratings in the industry. Our windows come with an outstanding 0.1 CFM rating—far below Energy Star 7.0’s stringent standards. Moreover, they are excellent at sealing tightly against the frame, effectively eliminating drafts and reducing heat loss.
In the master bedroom, the new windows feature a clean, gridless design, which enhances the room’s modern aesthetic while maximizing natural light. Additionally, the sleek appearance contributes to a more open, airy feel. For the kitchen, double-hung windows were selected to maintain visual consistency throughout the home. These windows also offer easy operation and improved ventilation—ideal for a high-traffic space like the kitchen.
All new window installations included durable sills designed for long-term performance and low maintenance. Therefore, the combination of airtight seals, stylish design, and high-quality construction ensures lasting energy savings and elevated curb appeal.

Energy Efficient Windows
Frequently Asked Questions About Replacement Windows in Dorchester, MA
What are the benefits of replacing old windows?
Replacing old windows with new, energy-efficient models can significantly reduce your energy bills by improving your home’s insulation. Moreover, better-insulated windows help keep indoor temperatures more consistent throughout every season. Additionally, new windows enhance curb appeal by giving your home a cleaner, more modern look. They also increase property value, making your investment more rewarding if you decide to sell. Furthermore, energy-efficient windows reduce outside noise, creating a quieter and more peaceful indoor environment. Therefore, upgrading your windows delivers lasting benefits in comfort, efficiency, and overall home value.
How do I know if my windows need replacing?
Signs that your windows need replacing include noticeable drafts, which can make rooms uncomfortable and increase heating or cooling costs. Difficulty opening or closing your windows may also indicate frame warping or mechanical failure. Additionally, condensation between panes suggests seal failure and poor insulation. Rotting window frames are another clear sign of moisture damage that can affect structural integrity. Moreover, rising energy bills may point to heat loss through outdated or inefficient windows. If your windows are over 20 years old, it’s a smart idea to consider an upgrade for better energy efficiency, comfort, and long-term savings.
What types of replacement windows are available?
There are several styles of replacement windows to choose from, including double-hung, casement, sliding, awning, and picture windows. Each type offers unique benefits depending on your needs and preferences. For example, double-hung windows are easy to clean and provide excellent ventilation. Casement windows open outward for full airflow and a clear view. Sliding windows are great for wide openings and offer smooth operation. Awning windows are ideal for ventilation even during rain. Picture windows, on the other hand, offer expansive views and maximize natural light. Therefore, selecting the right style enhances functionality, comfort, and your home’s visual appeal.
What makes a window energy efficient?
Energy-efficient windows typically feature double or triple-pane glass filled with inert gas like argon, low-E coatings to reflect infrared light, quality frame materials that provide good insulation, and proper installation to eliminate leaks. Look for windows that meet or exceed the new Energy Star 7.0 ratings!
How long does it take to install replacement windows?
The installation time for replacement windows can vary depending on the number of windows and the type of installation. However, most professional installers can replace 10–15 windows in a single day under typical conditions. Moreover, the process is streamlined when windows are custom-fit and prepared in advance. Factors such as window size, accessibility, and weather may slightly affect the timeline. Additionally, professional crews work efficiently to ensure a clean, proper fit with airtight seals. Therefore, homeowners can expect quick, minimally disruptive service with lasting results.