Commercial HVAC contractor in Bellevue & the Eastside

Service, maintenance, replacements, refrigeration and controls for Bellevue & the Eastside buildings and homes. Call or send a request and a real person gets back to you.

Call 425-906-7700 Request Service

50+ yearscombined HVAC-R experience

Marysville to Roycrews live where they work

Service + installone company, both teams

Commercial & residentialabout 80/20

Mechanical work in Bellevue & the Eastside

The Eastside is offices, tech space, retail centers and a lot of homes, and every one of them has equipment that needs to run. Our mailing address is in Redmond, and the Eastside is one of our core areas.

We service and replace rooftop units, splits and VRF in Eastside commercial buildings, and install heat pumps and mini-splits for Eastside homeowners.

Our crews live and work from Marysville to Roy. Tap a dot to see another area.

Local field notes

What to know about mechanical work in Bellevue & the Eastside

Who supplies your power and gas, who issues permits and does inspections, and which rules and rebates apply. We deal with this on every job here, so you don’t have to.

Power: Puget Sound Energy (PSE)
Natural gas: Puget Sound Energy (PSE)
Mechanical permits: Bellevue, Kirkland, Issaquah, Sammamish and Bothell file through MyBuildingPermit.com. Redmond runs its own permit center.
Electrical permits: Bellevue, Kirkland, Redmond and Sammamish run their own electrical inspections. Issaquah, Bothell and Woodinville go through L&I.
Energy rules: Washington Clean Buildings applies to commercial buildings over 20,000 sq ft (Tier 1 over 50,000, Tier 2 from 20,000 to 50,000). How Clean Buildings works
Rebates: PSE instant discounts on qualifying heat pumps and commercial heat pump water heaters. See current rebates and incentives

Neighborhoods and towns we cover

Bellevue
Redmond
Kirkland
Issaquah
Bothell
Woodinville
Sammamish

Sources (as of October 2026): L&I city electrical inspections · MyBuildingPermit jurisdictions · PSE service area

Recent work around Bellevue & the Eastside

Heat pump condenser with line-set cover running up the siding in Bellevue

Newly installed ductless wall unit in a community gym

Daikin heat pump condenser installed on a pad beside a clubhouse in Redmond

Commercial mechanical room with large ductwork and piping

New rooftop exhaust fan among rooftop units on a commercial roof in Woodinville

Our people do the work

No call centers and no subs you’ve never met. Our techs and installers live all over the region, from Marysville to Roy, and they stand behind every job they put their hands on.

Omni Mechanical technician next to his service van

Omni Mechanical team member in an Omni hoodie

How it works

Call or send a request

Tell us the equipment, what it’s doing, and how urgent it is.

We come look

A field-experienced tech or estimator sees it in person. Most diagnostics take 30 minutes or less.

Straight price first

You get what’s wrong, what it takes, and what it costs before we start.

Done right, written up

We finish clean, test it, and leave a written record of what we did.

What we do in Bellevue & the Eastside

What our clients say

    
 
 
       Posted on Google  
   
   Norman Domingo 
 
 
 
 Trustindex verifies that the original source of the review is Google. I’m very satisfied with Omni Mechanical and happy to support their company. Tom is great to work with—professional, knowledgeable, and excellent with customer service. As a fellow business owner in the HVAC industry, I really appreciate how well he communicates and works with other contractors and colleagues.

Tom and the Omni team do a great job, and I highly recommend them to anyone looking for reliable and professional HVAC services. Keep up the great work!
  
 
      Posted on Google  
   
   Noel Dubuque 
 
 
 
 Trustindex verifies that the original source of the review is Google. Finding a company that genuinely stands behind its work is rare. Omni exceeds every expectation.

They are been honest, professional, and committed to doing the job the right way. They communicate clearly, follow through on every promise, and never cut corners. It's obvious they take immense pride in their craftsmanship, and that level of dedication shows in everything they do.

What is most impressive goes beyond the quality of their work, it is their integrity. They are the kind of people who treat your project as if it were their own, offering honest recommendations and making sure every detail is right before they consider the job complete.

If you're looking for a mechanical company you can trust completely, this is it. They are truly the best in the business. This is exactly who you want taking care of your home or business.

Thank you Chris Beggs and the team for all you do for us!

We! We!
  
 
      Posted on Google  
   
   Chris Hull 
 
 
 
 Trustindex verifies that the original source of the review is Google. As an electrical company, we've worked alongside a lot of mechanical contractors, Omni Mechanical truly stands out. They show up on time, take pride in their work, and make every shared job feel like a true team effort. We're proud to call them a trusted partner and wouldn't hesitate to recommend them to anyone looking for top-quality HVAC work.
  
 
      Posted on Google  
   
   Cheri Paul 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have known the owners of Omni Mechanical for 10 years. Their integrity, professionalism, and honesty are top notch. You will look far and wide, and quite possibly never find another company that compares with their credibility, and striving to please their customers. Honesty and integrity are not common this day and age! This company has it all! I would highly recommend them for ANY Commercial work that you need to have done! A+
  
 
      Posted on Google  
   
   IAN ANDERSON 
 
 
 
 Trustindex verifies that the original source of the review is Google. It's truly a relief to have such a dependable mechanical contractor right here in the Seattle area, especially one that prioritizes exceptional customer service. Omni Mechanical not only handles mechanical installations but also offers top-notch engineering services. Their full design-build team ensures a seamless process from start to finish.
I'm pleased to say that I will definitely be partnering with Omni for all future commercial projects. Their professionalism and commitment to quality make them an invaluable asset to any project team.

Common questions

Do you service commercial HVAC in Bellevue & the Eastside?

Yes. We service, maintain and replace commercial HVAC, refrigeration and controls in Bellevue & the Eastside and nearby. Call 425-906-7700.

Do you have an office here?

No. We don’t have a storefront. Our techs live and work across the region from Marysville to Roy, so someone is usually nearby. Mail goes to our PO Box in Redmond.

Do you do residential work on the Eastside?

Yes. Heat pumps, furnaces, mini-splits and water heaters for homes in Bellevue, Redmond, Kirkland and nearby. See residential HVAC.

Do Eastside cities handle permits differently?

Yes. Most Eastside cities file through MyBuildingPermit.com, but Redmond runs its own. Electrical is split too: Bellevue, Kirkland, Redmond and Sammamish inspect their own, while Issaquah, Bothell and Woodinville use L&I. We sort that out for you.

Other areas we serve

Ready when you are

Tell us what’s going on. We get back to you as fast as we can.

Call 425-906-7700

Request Service

Licensed, bonded & insured · WA Contractor License OMNIMMI779PR · WA Electrical Contractor (HVAC/Refrigeration) EC OMNIMMI740OS · Commercial financing available