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Green Hammer

Founded 2002 • With Angi since May 2006


(31) Verified Reviews

Business Details

Phone Number


1323 SE 6th Ave

Portland, OR 97214


We are a design-build firm that specializes in building energy use. We aim to massively reduce carbon emissions and energy use in the built environment while using local, responsible, non-toxic materials. In our building and remodeling work, we integrate beauty and building science to build homes with superior health, comfort, performance and durability. We are the only FSC certified builder in the US. And, we have a team of energy experts and moisture analysts that carry certification through the Building Performance Institute (BPI) and Passive House....

Verified Reviews

A few reviews for this pro...


Andrew B.

I sent an e-mail and they quickly got in touch with me to schedule a phone call with a rep. A few days later we talked for an hour and he gave me a rough estimate and said he'd like to come for a site visit. And he did. He spent an hour talking about two different options with us and continually attempted to guide us toward what he would do with our situation to fit his tastes rather than what we wanted. Fine. We would be willing to keep the work going in the right direction but it got tiresome. He made a bunch of pictures and said he'd follow up in a few weeks with an estimate. We haven't heard from him since (and gave the project to someone else).

Description of Work
We asked Green Hammer for an estimate for adding a second bath to our home .

Category insulation



Larry B.

I'd worked with these people on a project at a previous house, and had really enjoyed working with them. I'd readily work with them again, but on a large project like this one, I would play a very prominent role as "manager" of my own project interfacing with them. Put everything you want into clearly composed emails, so there is a written track record. But I think that is just a common-sense good approach with any project such as mine. On both projects, the work was done with high quality. And all Green Hammer personnel were pleasant, well-informed, willing to readily share information about their work and helpful. GH made this big complex project relatively easy. There were just a couple things that went awry in the project... Wiring for a 2d floor smoke alarm was NOT connected to an available nearby circuit dedicated solely for all house smoke alarms, but was instead wired into another circuit in the house. I had mentioned that "smoke alarm" circuit in conversation with the GH project lead, but I should have been a bit more formal by putting that in writing in an email etc. Or I should have been present to go over this detail with the electrician myself. On both this and the earlier project, the intent was for re-roofing to also include fixing drooping roof ends which over the years had pulled corbels out of their positioning on the house exterior. And in both projects, this fix was not implemented as desired. In the earlier project GH roofing sub-contractors did make an IMPROVEMENT. In the 2d project that is the specific focus of this review, it's more complicated. Historic district restrictions prevented the most obvious approaches that might have been applied. After the roof was done and I mentioned that the roof end drooping hadn't been fixed, GH said that the mechanism they'd planned to apply didn't seem workable after they had the roof off. So apparently there was simply a decision to make no improvement at all. If I were to engage GH for similar work again fixing drooping roof ends, I would be VERY tenacious and visible with them about this roofing "fix". I'll repeat however that my review is very positive and I'd work with GH again. But it makes sense to play a strong "project manager" role yourself while interfacing with them. Maintain knowledge and clear written communications about your details, and follow up to make sure those are understood and implemented. But I think this would be true in EVERY big project.

Description of Work
reroof house; remove 2d floor ceiling, apply spray foam insulation below roof, re-install new wallboard on 2d floor ceiling; install improved kitchen exhaust hood and venting; install exhaust system in 2d floor bathroom; install new high efficiency water heater; install new high efficiency gas furnace and remove chimney stack for old furnace from basement through 2d floor roof; install 5 new energy conserving windows; assist with fulfilling requirements of historic district review process (my house is in a designated historic district)

Category heating & air conditioning/hvac,insulation,replacement windows,home remodeling



Rhia W.

I was very happy with them, they were proffesional, and very clean. I would recommend.

Description of Work
They insulasted my attic and basement.

Category insulation



Christian M.

This was our first big home renovation on a newly purchased 1926 Irvington house. Greenhammer was very professional and responsive from start to finish. They provided excellent design-to-completion guidance and overall the complex project with many moving parts was finished without any major setbacks or headaches. And honestly, this was more than I expected. The project schedule and pricing was very transparent and changes we asked for half way through (for example, we decided to remove the chimney), were quickly accommodated. Overall I thought we thought the subcontractors did strong quality work and Greenhammer project lead stepped in immediately whenever there was a quality issue. I felt they had our backs the whole time.

Description of Work
Complete kitchen renovation down to the studs with custom cabinetry from Urban Timberworks (partner company) Insulation and energy efficiency improvement in coordination with Clean Energy Works skim coating and refinishing several lathe-plaster walls New water line, extensive plumbing and electrical work

Category insulation



William S.

Very well. Very complete and timely. Although we did not use them in this project I wouldn't hesitate to hire Green Hammer in the future.

Description of Work
Gave an estimate for insulation.

Category insulation



Jan N.

It went great. They did everything I needed done. I would recommend them to others.

Description of Work
I used Green Hammer to insulate my house, replace windows, and put a new furnace in.

Category heating & air conditioning/hvac,insulation,replacement windows



Leah K.

They were excellent! They pay attention to detail. We hired them because of their focus on energy conservation and green products.

Description of Work
They did almost a whole home remodel. They have done everything from kitchen, bathrooms, flooring and much more.

Category flooring contractor,remodeling,home builders,home remodeling



Marina S.

I liked that they were local and that they were green. There was kind of a mix up because the guy who was in charge of our account quit in the middle of it, so there was this kind of overlap where there wasn't any work done for three days and no one knew what was going on. They made up for it and gave us a discount. They were pretty professional and did a very good job. They had some very good artisans and people that knew what they were doing. They were also here on time.

Description of Work
Green Hammer insulated our house including the attic. We took off the asbestos siding ourselves and they cleaned things up, so it looked like the original house. They also installed a heat pump and a backup gas furnace.

Category heating & air conditioning/hvac,insulation,siding

Service Provider Response

Thanks for your understanding regarding the project manager transition that happened during the installation of your project. That was a challenging transition for us to navigate, and working together with a considerate client like yourself made it possible to arrive at a successful project with a minimal amount of disruption. It was a pleasure working with you! Best, Devan


Joanna M.

Not too well. They were nice enough when we discussed the problems, but they did not deliver. I think their reputation is overinflated.

Description of Work
Green Hammer did our energy audit and agreed to weatherproof our house and blow in insulation into our attic. They had to be micromanaged to finish the job and still missed key places they promised to do (which appeared on our bill as completed). We also looked into them having manage our window insulation but found them to be unresponsive and expensive.

Category insulation,energy audit

Service Provider Response

Hello Member, Thanks for reporting your concerns about your experience with Green Hammer. Unfortunately your project happened during a transition time for one of our employees, and he is no longer employed at Green Hammer. I realize in this instance that our work was not up to our usual standards. If I recall correctly, I listened to your concerns, asked what I could do to make it right, and was agreeable to the financial adjustments you proposed. I'm sorry you had this kind of experience with Green Hammer, and we are all grateful for this opportunity to improve. Best, Devan


Tim G.

Overall they did an excellent job. I will definitely use them again.

Description of Work
They installed new sidings, built a new deck and did some repairs.

Category decks,handyman service,remodeling,siding,garage builders

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    General Information
    Free Estimates
    Eco-Friendly Accreditations
    Payment Options
    Senior Discount

    Services Offered

    Major and minor remodels, new construction, accessory dwelling unit (ADU) additions

    Services Not Offered

    handyman services

    Frequently Asked Questions & Answers about Green Hammer

    How is Green Hammer overall rated?

    Green Hammer is currently rated 4.6 overall out of 5.

    What days are Green Hammer open?

    Green Hammer is open:

    Sunday: Closed

    Monday: 8:00 AM - 5:00 PM

    Tuesday: 8:00 AM - 5:00 PM

    Wednesday: 8:00 AM - 5:00 PM

    Thursday: 8:00 AM - 5:00 PM

    Friday: 8:00 AM - 5:00 PM

    Saturday: Closed

    What payment options does Green Hammer provide

    Green Hammer accepts the following forms of payment: Check

    Does Green Hammer offer free estimates?

    Yes, Green Hammer offers free project estimates.

    Does Green Hammer offer eco-friendly accreditations?

    Yes, Green Hammer offers eco-friendly accreditations.

    Does Green Hammer offer a senior discount?

    No, Green Hammer does not offer a senior discount.

    Are warranties offered by Green Hammer?

    Yes, Green Hammer offers warranties.

    What services does Green Hammer offer?

    Green Hammer offers the following services: Major and minor remodels, new construction, accessory dwelling unit (ADU) additions

    Are there any services Green Hammer does not offer?

    handyman services