The interior had been cut up into several smaller rooms in place of the original four; chimneys and fireplaces had been removed.

Following War Department plans which had been used in the remodeling of 1834, the four original rooms were located and partitions restored. Fireplace locations were determined from the old foundations and footings were rebuilt. Pine logs, squared and hewn with axes, form the outer walls; the floor and ceiling joists are of hand-hewn tamarack poles. Much of the original flooring is still in place. The walls are plastered over hand-sawn and hand-tooled lath, a portion of which has been left exposed.

Pine logs in the outer walls, hand-hewn tamarack joists in floors and ceilings, bricks for the three restored fireplaces from an old house in Portage made of bricks and stones that were once part of the fort foundations - all contributed to the authentic restoration of Surgeons' Quarters.

It is now a true example of the log-type house built by French inhabitants of Wisconsin.