Using green building practices for over 30 years
G. Christianson Construction is an award-winning Earth Advantage Builder, recognized for our achievements in sustainable & energy efficient construction in Corvallis. We use a variety of environmentally-responsible systems and materials to create superior energy efficiency and indoor air quality in your home.
A passive house maximizes home comfort and saves up to 70% on your energy bill. G. Christianson is at the forefront of Passive Building in Oregon.
More On Passive HouseLearn More About Energy Efficiency


Use Durable Materials
Using durable materials lengthens the amount of time before there is a need to replace and discard old materials to a landfill.


Solar Panels
For this project, we helped design and install a system that install a system that includes 40 solar panels. This saves 11 tons of carbon pollution per year, and provides about $1,500 savings per year. Super insulation. Energy-efficient appliances. No drafts or thermal bridging. At G. Christianson Construction, our energy-efficient approach makes it possible to maintain a stable, comfortable temperature in your home with less energy, at less cost.


Remove Your Chimney
Chimneys are dangerous during natural disasters, and also leak a tremendous amount of heated air out of the home. We recommend removing or sealing your chimney.


Air Tight Windows & Doors
If your home is uncomfortable, drafty, or cold, you should consider upgrading your windows and doors to be air tight. It can also reduce your home’s carbon footprint. We can block drafts, help you select low-VOC materials, and incorporate systems that will lower your utility bills, improve air quality, and add to your comfort.
Find out more about keeping your home comfortable at Northwest Aerobarrier »


Add Ceiling & Underfloor Insulation
Lack of insulation in the attic is the number one cause of energy loss in a home. We can offer air sealing and insulation solutions to increase the comfort and energy efficiency of your home. Underfloors are also a major source of heat loss, and supply crawlspace air into your home.


Indoor Air Quality
In a leaky older home, unhealthy air is drawn naturally through the crawlspace into your home. We can greatly improve your indoor air quality by air sealing your floors and ceilings, and providing filtered, outside air through a Fresh Air HRV System.


Insulated Exterior Walls
During siding replacement, we always encourage your to add continuous exterior insulation. This prevents energy loss through your wood framing, increases siding durability, reduces air leaks, and decreases moisture intrusion.


Migrate Away from Natural Gas
Electricity can be powered by renewable resources thus reducing global climate change. Electricity also eliminates the risk of gas leaks or carbon monoxide poisoning. Check out Electrify Corvallis for more information!


Electric Cars
Electric Cars are easier to maintain, have lower costs, and have no fuel emissions. We can future proof your home by preparing your garage for electric cars and batteries. We can also also fast-changing electrical outlets in your garage.
Energy Upgrade Services
- Install solar electric PV panels
- Add insulation to walls, floors and attics
- Air seal to reduce heat loss
- Test & seal leaky ductwork
- Replace old windows
- Replace inefficient heating systems
- Mini-split heat pumps
- Design with solar best practices
- Build with reused, recycled, FSC or green products
- Paint and carpet with low VOC
- Formaldehyde-free paint and carpet
- Install LED lighting systems
- Build raised heel trusses
- Add heat recovery ventilators
- Tankless and heat pump water heaters
- Build with ICF
- Build with insulated concrete block walls
- and much more
What our Clients are Saying
See the Riverside Farmhouse Remodel project“Throughout the project, Sarah did an incredible job of listening to our vision and guided our decisions with her extensive design experience. G. Christianson consistently provided excellent materials, work, communication, and, moreover, they became our friends throughout the process. They used only superior quality products throughout our home, made sure all systems and structures throughout were constructed to meet or exceed code standards, and took the initiative to provide superior construction techniques even where it wouldn't show. The custom cabinetry and carpentry throughout is top quality and beautiful. The result is exactly the dream home we've always wanted! Sarah, Tanner, and the GCC team created a gorgeous, comfortable space where our family can grow for decades. It was an incredible two-year experience with the GCC family.”
See the Mary’s River Bathroom Addition project“My husband and I couldn’t be happier with the master bedroom/bath remodel undertaken recently for us by G. Christianson Construction. I had a vision and Carl helped make it a reality. Everyone on the G. Christianson team is absolutely top-notch in terms of skills, and just in general being lovely people to have around. Carl seems to have a knack for finding and securing the talents of the best subcontractors, too. We are thrilled with the results of the project. In fact, I would say it turned out even better than we imagined and hoped!”
“The designer, Elizabeth, was amazingly talented. Her knowledge of ADA construction details and resources was impressive. Not only did she succeed at designing bathrooms, toilets, and a kitchen that are fully ADA-compliant, but they are aesthetically beautiful as well as functional and practical. I had never heard of 'flying toe kicks' before, but they make it so easy for me or my husband to sit in a chair while washing dishes or preparing food in the kitchen. I had also never heard of ADA-compliant appliances, but Elizabeth had - and they make life so much easier! Cooking in my new kitchen is now a dream rather than a nightmare. ”
Barbara Shields, Corvallis, OR
See the Wheelchair-Accessible Kitchen & Bath project