We need your best ideas! NEW (Builder & Int. Designer Company)

PH Company (building & design)

We are a husband & wife team looking to start a new general contracting/Interior design company. We plan to specialize in new home construction, renovations, additions and/or general contracting. Both my wife and I are currently in the profession (builder & designer). However, we are looking to join forces, so to speak as an added sales feature for the new construction we are looking to get. Our names both begin with P.H. hint the PH Company.

We are looking to do new high-end homes, renovations & additions. We are not the contractor you call to fix your toilet or a flickering light.

We want our logo to be simple but eye catching, sophisticated and established looking. Nothing to ornate/decorative, nor do we want a tool or house represenation.
I think we are leaning towards a play on the "PH" in the PH Company that catches your eye. We are undecided if we want to us "Building & Design" anywhere in the logo. Feel free to experiment.

These are the colors we like (Neutral), earth tones greens, blues, browns. We know we don't want red and would prefer charcoal over black.

No clip art or stock images.

I do not know what files I will need. This will eventually be put on job signs, letter heads, shirts, huggers. (I think jpg and layered psd files is what I need?)