“In the elder days of Art,
Builders wrought with greatest care
Each minute and unseen part;
For the Gods see everywhere.Let us do our work as well,
Both the unseen and the seen;
Make the house, where Gods may dwell,
Beautiful, entire, and clean.”— Henry Wadsworth Longfellow, The Builders (1846)
I’ve carried these lines with me for a long time. As a contractor, they mean something specific and practical. The unseen part of a home — the insulation packed into every wall cavity without voids, the air sealing at every penetration, the duct system designed and tested for zero leakage, the structural decision that makes sense rather than the one that simply covers liability — is where the real work happens. Anyone can make something look beautiful. The question is what’s behind the walls.
That question is what changed everything for me.
How I Got Here
For the first part of my career I thought we built really good projects. And in many ways we did. We were known for foundations and framing — other contractors hired us to do their structural work on custom and spec homes. We were good at the finish. We gave very little thought to insulation and mechanical systems. I thought I did a decent job selecting sustainable materials. But I didn’t think about how a house actually worked as a system — how air moved through it, where energy was escaping, what was living in the interstitial cavities between the framing and the finishes.
In 2008, during the recession, my brother Keith came across a series of courses offered through PG&E on Home Performance. The classes were taught by Rick Chitwood — a mechanical and insulation contractor turned building scientist who devoted his career to understanding how houses actually behave, how to test them, and how to fix them. Those classes were among the most eye-opening experiences of my professional life.
What we learned — and what we then saw confirmed in dozens of homes we tested with diagnostic equipment — was that most homes, including beautiful, expensive, relatively new homes, performed terribly. Leaky envelopes. Oversized, poorly designed mechanical systems. Ducts leaking conditioned air into crawlspaces and interstitial wall cavities. Thermal bridging at every framing member. Homes that looked luxurious and felt mediocre to live in.
Once you see it, you can’t unsee it. I just couldn’t go back.
Keith and I started Eco Performance Builders shortly after those classes. I worked alongside the business for several years — doing energy audits and retrofits, testing homes, seeing firsthand what poor construction looked like from the inside. It was important and necessary work. But it wasn’t my style. I thrive on larger, more complex projects — the kind where you’re rebuilding something from the ground up and have the opportunity to get everything right from the beginning.
So I stepped back and let Keith grow Eco Performance Builders into what it is today — one of the most respected HVAC and building performance companies in the East Bay. I went back to what I love: building and renovating significant homes. But I took everything I’d learned with me. And I decided I was never going to build another home without applying it.
What Testing Taught Me
The most important thing the diagnostic work taught me wasn’t a specific technique. It was a standard.
When you put a blower door on a house and watch the numbers, when you use thermal imaging to see exactly where heat is escaping through interstitial cavities and framing members, when you test duct leakage and see conditioned air disappearing into unconditioned spaces — you develop an internal benchmark for what good actually looks like. Not what passes inspection. Not what meets code. What actually performs.
That standard never left me. Every project I take on, I’m thinking about how this house will test. How it will perform in ten years. How it will feel to live in on the hottest day in August and the coldest night in January. Whether the person sleeping in the back bedroom will be as comfortable as the person in the primary suite. Whether the air in the home will be genuinely clean or just acceptable.
Most contractors never develop this standard because they never see inside the homes they build. They build to plans, pass inspections, and move on. I’ve been inside those homes with a blower door and a thermal camera. I know what’s in there.
What I Actually Do Differently
I’ve met and worked alongside dozens of contractors over 29 years. There are good ones. There are honest ones. But very few who do all of the things I consider non-negotiable.
I push back when something isn’t right. Most contractors build what’s in front of them without question. I don’t operate that way. If I see over-engineering, I say so. If I see a structural solution that costs the owner several thousand dollars and isn’t necessary, I raise it. If I see a performance gap in the mechanical design, I flag it. My obligation is to the owner. The owners I work with — the ones who are the right fit — appreciate that.
On a recent project, the structural engineer had specified a girder running the length of a 20-foot span supported by multiple drilled piers. With TJI joists, that span is well within standard practice without the girder. I recommended revisiting it with the engineer. He agreed — reluctantly — and the owners saved several thousand dollars. The floor performed perfectly. I’d make the same call again.
I don’t over-engineer and I fight it when I see it. There’s a tendency in construction — especially when liability is a concern — to specify more than necessary. More steel, more concrete, more redundancy. Sometimes this is appropriate. Often it isn’t. It adds cost and complexity without making the home better. Building science and high-performance construction are not over-engineering. They are practical, precise, and exactly what is required to build a home that truly performs. There’s a meaningful difference between engineering something correctly and engineering something excessively. I know the difference and I apply it.
I do the same quality of work whether anyone is watching or not. This is where Longfellow’s poem comes back. The insulation in a wall that will be closed tomorrow — no one will ever see it again. The air sealing at a penetration behind the drywall. The duct connection in the crawlspace. These things are invisible once the project is complete. They determine how the home performs for decades. I do them the same way whether the owner is standing next to me or not.
I am willing to stop a subcontractor who isn’t performing. Some contractors keep their subs regardless of quality because it’s easier. I switch subs when the work isn’t right. I stop work when something needs to be corrected. This creates friction in the short term. It produces a better result in the long term. My subcontractors know this about me, and the good ones — the ones I keep — respect it.
I prepare obsessively. Speed, performance, and craftsmanship together require preparation. You can’t improvise your way to all three simultaneously. The Gantt chart in Buildertrend before the project starts, the decision points communicated to owners weeks in advance, the material selections locked in before the trades need them — this is how a complex project moves quickly without sacrificing quality.
I invest in continuous education — not just credentials. Most contractors stop learning once they’re licensed. I’ve spent years attending presentations and building science forums alongside researchers from Lawrence Berkeley National Laboratory and Building Science Corporation — the people who are actively studying how buildings fail and how to make them better. I read Green Building Advisor and Fine Homebuilding regularly, work through methodology questions with Keith at Eco Performance Builders, and refine my business processes through the Association of Professional Builders. The building science field moves. What was best practice ten years ago isn’t necessarily best practice today. Staying current isn’t optional — it’s the only way to deliver what I promise.
How I Work With Clients
A renovation or custom home project at this level is a significant relationship. It lasts months, sometimes over a year. It involves a homeowner’s most valuable asset, their daily life, and decisions that will affect how they live for decades. I take that seriously in a way that shapes everything about how I engage.
I communicate directly and completely — the good news and the difficult news, early and without softening. A client who doesn’t know there’s a problem until it’s already a crisis has been failed by their contractor. I’d rather have an uncomfortable conversation in week three than an expensive one in week ten.
I expect a lot from my clients as well. The owners who get the best results are the ones who engage with the process — who make decisions on schedule, who trust the people they’ve hired while staying genuinely involved, and who understand that a complex project requires their participation, not just their investment. I communicate decision timelines well in advance and I hold to them, because last-minute rushed decisions are where projects get into trouble and where owners end up with results they didn’t really want.
I treat every stakeholder — architects, engineers, subcontractors, inspectors, neighbors — with the same directness and respect. My subcontractors know I won’t waste their time and I won’t cry wolf. When I say something needs to be done, it needs to be done. They also know I hold them to the same standard I hold myself — high quality work, delivered when they said it would be delivered, or a conversation before that deadline, not after. That reliability is what produces the kind of coordinated, fast-moving job site that delivers a complex project on schedule without sacrificing quality.
And I bring the same standard to every project regardless of who’s watching. The homeowner who stops by the site every day gets the same work as the one who’s traveling and following along through daily logs in Buildertrend. The small air sealing or framing detail that no one will ever see again gets the same dedication to quality as the kitchen backsplash that will be in the forefront for years.
The clients who are the right fit are ones who appreciate where quality craftsmanship actually comes from and who extend genuine trust to the people who earn it. That combination — high standards and real trust — is where the best work happens.
What Living in a High-Performance Home Taught Me
I built my first home in 2005 — before Rick Chitwood’s classes, before Eco Performance Builders, before I understood what I didn’t know. It was a good home. Well-built by conventional standards. And it was never quite comfortable. Rooms that were too hot or too cold. An HVAC system that worked harder than it should have. Air that was fine but never quite felt clean.
In 2018 I moved into a home I built to the standards I hold every project to today. Tight envelope, right-sized mechanical systems, engineered ventilation, careful attention to what goes into the walls and the air during construction.
The difference was not subtle.
Less dust. Consistent temperature in every room at every hour. And the air — genuinely fresh, continuously exchanged by the ERV, free of the accumulated CO2 and particulates that build up in a conventional home over the course of a day.
My wife’s flowers last longer. That sounds like a small thing. It isn’t. Cut flowers off-gas ethylene as they age — a gas that accelerates deterioration. In a home with continuous fresh air exchange, that ethylene doesn’t accumulate. Flowers that used to last four or five days now last eight to ten. It’s a small proof that the system is working exactly the way it should — quietly, invisibly, every day.
That’s the home I want every client to live in. Not just beautiful. Beautiful, entire, and clean.
Why This Matters for Your Project
If you’re planning a significant renovation or custom build in the East Bay, the contractor you choose will make more difference than any other single decision. More than the architect. More than the finishes. More than the mechanical systems. Because the contractor is the person responsible for translating everything else into reality — on time, on budget, and to a standard that holds up for decades.
The difference between a contractor who builds what’s in front of them and one who thinks about how your home will perform, feel, and last — that difference is invisible at the estimate stage. It becomes very visible over the life of the home.
I’ve been inside enough homes — both with a blower door and as a homeowner — to know exactly what that difference feels like. I build the homes I would want to live in. And I build them the same way whether anyone is watching or not.
“Think not, because no man sees,
Such things will remain unseen.”
Scott O’Hara Construction specializes in large luxury home renovations, custom homes, and high-performance construction in the East Bay — serving Lafayette, Orinda, Moraga, Danville, Alamo, Walnut Creek, Pleasant Hill, and the surrounding hills.
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