Portland, OR
- Roofing contractor
- Address
- 1410 Northwest Johnson Street, Suite 31, 97209
- Phone
- +1-321-360-4494
- Website
- roofcontractorportland.com
Alliant Systems
Alliant Systems is an hvac contractor in Portland, Oregon.
- HVAC contractor
Who is Alliant Systems?
You can find Alliant Systems at 351 Northwest 12th Avenue, Portland, OR 97209. Call Alliant Systems at +1-503-619-4000. Its website is alliant-systems.com. Its website lists info@alliant-systems.com for general inquiries. Opening hours on record: Mo-Fr 07:30-16:30.
Alliant Systems is one of 44 construction companies we list in Portland. Before you hire any contractor in Oregon, check the license with the Oregon Construction Contractors Board.
What does Alliant Systems say about its work?
Alliant Systems is the leading design-build mechanical contractor in Oregon and Southwest Washington. What sets us apart is our all-in-one approach and our wide spectrum of HVAC & Plumbing services – new construction, renovation, engineering, maintenance, controls, energy services and commissioning.
In the company's own words, from alliant-systems.com, read November 2026.
Where is Alliant Systems located?
Alliant Systems is at 351 Northwest 12th Avenue, Portland, OR 97209.
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How do I check Alliant Systems's contractor license?
Search the Oregon Construction Contractors Board for Alliant Systems before you hire. We do not hold license records for individual companies. Oregon licenses contractors statewide through the Construction Contractors Board.
Check a license in OregonLicensing rules checked October 2026. Requirements change, so confirm on the state site.
Run a business like Alliant Systems? See our hvac website design and construction website design services.
Which construction companies are near Alliant Systems?
The nearest listed company is Britling Roof Repair Portland, about 0.2 miles away in Portland, OR.
About 0.2 miles away
Portland, OR
- Flooring and tile contractor
- Address
- 1320 Northwest 17th Avenue, 97209
- Website
- floorfactors.com
About 0.5 miles away
Portland, OR
- Builder
- Address
- 342 Southwest 2nd Avenue, 97204
- Phone
- +1-503-224-6888
- Website
- swinerton.com
About 0.6 miles away
Portland, OR
- Flooring and tile contractor
- Address
- 623 Southeast Martin Luther King Junior Boulevard, 97214
- Website
- linoleumcitypdx.com
About 1.2 miles away
Portland, OR
- Flooring and tile contractor
- Address
- 2727 Northwest Front Avenue, 97210
- Phone
- +1 503 2276414
- Website
- emersonhardwood.com
About 1.3 miles away
Portland, OR
- Electrical contractor
- Address
- 657 Southeast Yamhill Street, Suite 1, 97214
- Website
- squireselectric.com
About 1.4 miles away
What other construction companies are in Portland?
We list 44 construction companies in Portland. Here are 8 more.
- ENR #46
- Website
- fortisconstruction.com
- ENR #238
- Website
- walshconstruction.com
- Electrical contractor
- Address
- 4702 North Lombard Street, 97203
- Phone
- +1-503-621-7122
- Website
- bridgetownelectric.com
- Roofing contractor
- Address
- 1410 Northwest Johnson Street, Suite 31, 97209
- Phone
- +1-321-360-4494
- Website
- roofcontractorportland.com
- HVAC contractor
- Address
- 4409 Southeast 24th Avenue
- Phone
- +1 503 698 5588
- Website
- eheatcool.com
- Flooring and tile contractor
- Address
- 2727 Northwest Front Avenue, 97210
- Phone
- +1 503 2276414
- Website
- emersonhardwood.com
- Roofing contractor
- Address
- 6952 Southeast Nehalem Street, 97206
- Phone
- +1-971-777-9899
- Website
- gutterempirellc.com
- Glass and window contractor
- Address
- 16107 Southeast McLoughlin Boulevard, 97267
- Phone
- +1 503 659 7587
- Website
- kempswindows.com
FAQ
Alliant Systems: FAQs
Where is Alliant Systems located?
Alliant Systems is at 351 Northwest 12th Avenue, Portland, OR 97209.
What kind of company is Alliant Systems?
Alliant Systems is listed as an hvac contractor in Portland, Oregon.
What does Alliant Systems say about its work?
On alliant-systems.com, Alliant Systems describes itself like this: "Alliant Systems is the leading design-build mechanical contractor in Oregon and Southwest Washington. What sets us apart is our all-in-one approach and our wide spectrum of HVAC & Plumbing services – new construction, renovation, engineering, maintenance, controls, energy services and commissioning."
How do I contact Alliant Systems?
Call +1-503-619-4000. Email info@alliant-systems.com. Visit alliant-systems.com. The office is at 351 Northwest 12th Avenue, Portland, OR 97209.
What are Alliant Systems's opening hours?
The opening hours on record are Mo-Fr 07:30-16:30.
Is Alliant Systems licensed?
We do not hold license records for individual companies. Oregon licenses contractors statewide through the Construction Contractors Board. Search the Oregon Construction Contractors Board to check a contractor before you hire.
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