Exterior shot of a two-story custom home with porch built by Gilmore Building Co

High-Performing Energy-Efficient Home Remodeling in Boston MetroWest & Central MA

Are you living with problems you’ve simply learned to tolerate, like drafty rooms, uneven temperatures, rising energy costs, or spaces that never seem comfortable in any season?

In older New England homes, these issues are often symptoms of deeper performance challenges that can’t be solved by replacing a furnace or adding more insulation alone.

Gilmore Building Co. helps homeowners integrate high-performing energy-efficient systems into their remodeling projects from the very beginning, allowing us to maximize comfort while still achieving their design goals.

Through thoughtful planning and a design-build process, we find opportunities to improve performance while preserving the character and functionality of your home.

If you’re thinking about a remodel and want to incorporate a high-performing, energy-efficient system into a design that performs as well as it looks, we’re here to discuss your goals.

 

What Goes Into a High-Performance Home Retrofit?

The most effective energy upgrades happen when building systems are designed to work together, not as isolated improvements.

It’s easy to assume that energy efficiency comes down to one upgrade, like new windows or a more efficient heating system. The reality is that home performance results from multiple systems working together.

A high-performance building retrofit can include:

  • Strategic insulation upgrades

  • Comprehensive air sealing

  • High-performance windows and doors

  • Advanced heating and cooling systems

  • Balanced ventilation and indoor air quality improvements

  • Moisture management and durability planning

  • Energy modeling and performance analysis

One of the most common mistakes homeowners make is upgrading one system without addressing the others. By evaluating your home as a complete system and working with an energy-efficient home builder, you can make more informed decisions that lead to better long-term results.

Image of a geothermal energy system installed in a custom home by Gilemore Building Co in Central MA
Image of an interior of a newly constructed home addition by Gilmore Building Co in Central MA

How Does Gilmore Integrate Building Science Into Remodeling Projects?

Innovative building methods and proven building science help create homes and commercial buildings that are more comfortable, durable, and energy efficient.

At Gilmore Building Co., we strongly believe that traditional New England homes can benefit from modern building technology without sacrificing their architectural character. From historic renovations to major additions and whole-home remodels, we look for opportunities to improve home performance over time.

Our key building technologies and building science principles include:

  • High-performance insulation and energy-efficient windows

  • Advanced systems such as geothermal heat pumps, solar energy, and smart thermostats

  • Incorporating Structural Insulated Panels (SIPs), pre-cast foundation panels, and custom modular components for precision and faster construction

  • Smart details like breathable walls and sealed crawl spaces to improve air quality and reduce moisture for a healthier, more comfortable home

  • Sustainable building materials that support environmental responsibility while delivering durable, beautiful results

Not every home requires the same solution. The best energy-efficient home design strategy depends on the existing structure, your goals, and how you plan to use your home in the future. 

 

Frequently Asked Questions

About Energy-Efficient Remodeling

A high-performance retrofit is a remodeling approach that improves how a building functions as a complete system. Rather than focusing on a single upgrade, it combines improvements to insulation, air sealing, ventilation, and mechanical systems to enhance comfort, energy efficiency, indoor air quality, and long-term durability.

In most cases, comfort is the biggest benefit. Homeowners often notice fewer drafts, more consistent temperatures between rooms, better humidity control, and improved indoor air quality. While lower energy costs are important, most people enjoy the comfort improvements every day.

Not necessarily. Some people pursue energy-efficiency upgrades as part of a whole-home remodel or addition, while others focus on specific performance improvements. The best approach depends on the existing conditions of your home, your long-term goals, and which upgrades will deliver the biggest impact.

The answer varies from home to home, but improvements to the building envelope, such as air sealing, insulation, windows, and moisture management, often provide the strongest foundation for long-term performance.

Once those elements are addressed, heating, cooling, and ventilation systems can operate more efficiently and effectively. The key is to evaluate the building as a system rather than focusing on any single isolated upgrade.

A FEW REVIEWS BY OUR CLIENTS

Photo of new-old-home

"While relocating to New England, we researched 100's of homes on-line and through site visits until our real estate agent showed us a new old home designed and built by Gilmore. Upon arrival at this home, we were immediately impressed by the unique yet classic look of the exterior. The interior layout and detailing showed there are still builders who are proud of what they do. When you see quality, you know it ...."

Photo of School House Styling Home

"The level of professionalism Gilmore brings to a project is excellent.  The design and build process really allowed us to explore and then narrow the project's scope of work with ease.  No other company could have applied the knowledge and architectural expertise needed to help us achieve the historic appearance goals we had.  The completed project exceeded our goals."

Photo of addition

"We can't say enough wonderful things about the work completed and the satisfying experience we had teaming with Gilmore Building Co.  Our project came in ahead of schedule and right on budget.  We love our new addition and our new kitchen and bath.  We would recommend Gilmore Building Co. for any project."

Photo of shingle style home window

"After a long search, my wife and I found in the Gilmore Building Co. homes everything we believed to be important in a new home. From the classic New England styling, abundant trim work, top of the line mechanicals and hardware, exceptional layout of the kitchen, custom cabinets and high quality appliances. The quality and craftsmanship built into our home was obvious from the street but even more so when you step through the front door."

Photo of beach front shingle style home

"My husband and I spent over a year working with an architect to design our summer home for our family. The execution, workmanship and temperament of the builder were critical to us. Gilmore Building Co. surpassed our expectations throughout the very satisfying process."

Photo of saltbox style home

"We chose to work with Gilmore Building Co. because they presented themselves as offering a detailed project scope and budget, high-quality work and overall excellent communication. And indeed that is what we received - an overall seamless and successful project with a level of customer service and detail not normally seen in this industry. We would highly recommend Gilmore Building Company and look forward to working with them again on future projects."

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