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McComsey Builders

Custom Energy-Efficient Home in West Chester, PA

A custom-built family home so efficient that it sells electricity back to the grid.

Licensed in Pennsylvania (PA015145)

Andersen Certified Contractor

Family-owned since 1986

The Story

From an Attic to an Off-Grid Family Home

Ian and his family had been living in the attic of his parents’ house when they decided to build their own home on a lot his parents owned. They came to McComsey wanting an energy-efficient home for their growing family with the lowest utility bills possible, and the result is a near-passive house that produces more power than the family uses.

Project at a glance

Location

Timeline

14 Months

Investment

$1,500,000

Before

An Attic, a Family, & an Empty Lot

Ian was starting with raw land and a desire for an efficient, sustainable family home. Here’s what he was leaving behind and what he wanted to build instead:

Design

Designed as a Positive-Energy Home

Archer Buchanan Architects designed the home around Ian’s vision of a near-passive house. From the architect’s plans, McComsey built every detail to spec, including ICF construction running from foundation to eaves, GAF solar shingles, geothermal systems, and triple-paned Schuco windows imported from Germany.

The Details

The Engineering That Makes This Home Pay You Back

Two-story house with a large sloped roof and solar panels, set in green fields with trees behind it.

A Solar Roof That Sells Power Back to the Grid

GAF solar shingles, Tesla batteries, and an app-controlled breaker panel turn the home into its own small power plant, generating more electricity than it uses and selling the surplus back to PECO.

Modern light-gray house with large white-framed windows and a covered wooden deck overlooking green hills.

Triple-Paned Windows From Germany

Imported Schuco windows are triple-paned and rated for passive home performance, sealing in heating and cooling so the home’s systems barely have to work.

Top-down view of a wooden staircase with white balusters and an oak handrail winding between floors.

A Custom Oak Staircase

A custom oak staircase runs through every floor of the home, its warm treads and white spindles turning the family’s daily climb into a small moment of craftsmanship.

Kitchen with sage-green cabinets, black countertop, and a stainless range hood over a stove; windows let in natural light; cutting board with lemons nearby.

Soapstone Counters and Custom Cabinetry in the Kitchen

Soapstone countertops and custom cabinetry give the kitchen a finished, intentional feel that matches the engineering quality of the rest of the home.

More Project Features

A Wood Stove at the Center of the Home

A wood stove anchors the main living space with a real fire to gather around, providing warmth in winter without drawing much from the home's primary heating systems.

ICF Construction From Foundation to Eaves

Two layers of insulation with concrete in the middle, creating an airtight, fully insulated structure that holds heat and cooling far better than standard construction.

Geothermal Heating and Cooling

The home runs on geothermal for the main HVAC system, drawing on the constant temperature underground to heat and cool with minimal electricity.

A Separate Geo Loop for A/V Equipment Cooling

A dedicated geothermal loop cools the home's audio and video equipment, keeping electronics running longer without straining the main HVAC.

Heat Pump Water Heater and Dryer

Both appliances use heat pump technology, reducing electric draw and eliminating the need for outside venting on the dryer.

Hardwood Floors Throughout

Solid hardwood across every floor of the home, with no carpet or tile transitions between rooms.

The result

The Net-Zero Home Ian Set Out to Build

Ian and his family now have their own home, with room for the kids and a power bill that often arrives as a credit. The sustainable house does the work of saving money while the family focuses on raising their kids.

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Your journey starts here

Build Your Sustainable Custom Home

Imagine the peace of mind that comes with a custom home designed for sustainability and built to near-passive house standards.