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Additions & Extensions

More house, without moving.

The best addition is the one nobody can point to. We tie new foundations into old, match rooflines and siding profiles, and blend the interior so the seam between decades disappears. Structural work is engineered, not guessed.

Second stories, primary suites, in-law wings, and garage conversions that match the original structure — inside and out.
Scope of work

What's included

Second-story additions

Full and partial second floors, including structural reinforcement of the existing frame and temporary weather protection while the roof is open.

Primary suites & in-law wings

Ground-level extensions with their own mechanicals — designed for aging in place, guests, or multigenerational living.

Garage & basement conversions

Converting unconditioned space into living space: insulation, egress, moisture control, and permits handled properly.

Structural matching

Rooflines, eaves, siding reveals, window proportions, and trim profiles matched to the original build — so the addition looks like it was always there.

The process

From first walk to final walkthrough

  1. 01

    Site visit & structural review

    We assess the existing structure, foundation, and utilities to determine what your house can carry.

  2. 02

    Design & permitting

    Drawings that match the existing architecture, engineered plans, and township approvals — we handle the paperwork.

  3. 03

    Build with you in the house

    Dust barriers, sequenced work, and a site kept broom-clean. Most families never move out during an addition.

  4. 04

    Seamless finish

    Flooring runs through, paint matches, and the HVAC balances. The last step is making the new part invisible.

Also from Ridgeline

Custom Homes

Ground-up builds, engineered for generations.

Renovations

Down to the studs, back to better.

Ready to talk about your additions?

Free on-site consultation, straight answers, and a real number before anything gets signed.