Residential
Whether your system needs a repair or a replacement, we'll tell you the truth about which. As a Mitsubishi Diamond dealer and American Standard installer, we back our installs with industry-leading warranties.
Free, no-pressure quote
A few quick questions and we'll get back to you with an honest answer.
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Need help sooner? Call (253) 453-0478.
Before & after
A representative example of the kind of heating & cooling work we do. Illustrative only, not a photo of a specific customer's job.
Get a free quoteJoshua replaced my AC mini-split and did an excellent job. He was professional, knowledgeable, and took the time to explain everything clearly. The installation was done quickly and with great attention to detail, and the system has been running perfectly ever since. I really appreciate the honest service and would highly recommend Joshua and his team to anyone needing HVAC work.
What's included
Whether your system needs a repair or a replacement, we'll tell you the truth about which. As a Mitsubishi Diamond dealer and American Standard installer, we back our installs with industry-leading warranties.
The process
We inspect the actual system and tell you what's really going on, not what's easiest to sell.
A clear, fair quote with your options laid out. Repair vs. replace, honestly.
Precise, code-compliant work, done right the first time and inspected.
Backed by our 1-year workmanship guarantee and manufacturer warranties.
In depth
When your furnace, heat pump, or AC quits, we diagnose the actual fault before we quote a dime. Plenty of the systems we have fixed were ones other companies wanted to replace. If a repair is the right call, that is what you will hear.
A heat pump moves heat instead of burning fuel to make it, pulling warmth indoors in winter and pushing it back out in summer. Right-sized and properly installed, it is the most efficient way to stay comfortable through a full Washington year.
As a Mitsubishi Diamond dealer and American Standard installer, we back our installs with industry-leading coverage: up to 12 years on equipment and a 1-year guarantee on our own workmanship.
Most no-heat calls come down to one part, not a whole system. We test the actual furnace, igniter, board, and gas valve before we quote, then tell you what failed and what it costs to fix.
An oversized outdoor unit short-cycles and an undersized one never catches up. We run the load math, set the refrigerant charge by the numbers, and leave you a system that runs quiet and lasts.
Westside Comfort Solutions is your home base for residential heating and cooling in Renton and across Western Washington. Furnaces, heat pumps, central AC, and ductless mini-splits: whatever keeps your home comfortable, we repair it, install it, and maintain it, and we’ll always tell you the truth about whether you need a repair or a replacement.
As a Mitsubishi Electric Diamond Contractor and American Standard dealer, we install systems we believe in and back them with industry-leading warranties: up to 12 years on Mitsubishi, 10 on American Standard, and our own 1-year workmanship guarantee on everything. This page is the overview. Use the links below to jump straight to the exact service you need.
Most Washington homes are kept comfortable by one of three setups, and knowing which one you have makes every repair-or-replace conversation clearer.
A system rarely fails all at once. It usually warns you first with weak airflow, short cycling, a spike in your energy bill, or strange noises and smells. Most no-heat and no-cool calls then come down to a single part, not a whole system, so we test the actual unit before we quote, and we’ve repaired plenty that other companies called impossible.
Jump to the repair you need: furnace repair, AC repair, or heat pump repair.
When replacement really is the smarter move, a new system is only as good as its installation. A unit that’s too large short-cycles and wears out early; one that’s too small never keeps up. We size every system to your actual home, not a rule of thumb, and commission it by the numbers so you get the efficiency, comfort, and equipment life you paid for.
Explore the install that fits: furnace installation, AC installation, heat pump installation, or ductless mini-split installation.
A yearly tune-up is the cheapest insurance you can buy for your system: it catches the small stuff before it becomes a no-heat night and keeps most manufacturer warranties valid. See what a visit covers on our heating and cooling maintenance page.
Want to see everything in one place? Browse all heating services or all cooling services, or tell us what’s going on and we’ll point you to the right fix.
Fair, upfront pricing
Every job is different, so we give you a clear quote before any work starts. No surprises. We charge fair rates because we think everyone deserves to be comfortable in their space. Financing is available, so the right fix doesn't have to wait.
We accept: Cash · Credit / Debit Card · Check · Venmo / Zelle · Financing available
Explore specific services
We treat every heating & cooling job like it's in our own home: diagnose it right, quote it fair, and stand behind the work. If a repair is the honest answer, that's what you'll hear.
Related services
Questions
We repair first whenever a repair is the honest answer. We've fixed many systems other companies said couldn't be saved. We only recommend a new unit when it's truly needed.
We're a Mitsubishi Electric Diamond Contractor and an American Standard dealer, so we install systems we trust and can warranty for the long term.
Up to 12 years on Mitsubishi systems we install and 10 years on American Standard, plus our 1-year workmanship guarantee. Extended labor warranties are available through JB Warranties.
Yes. Mini-splits are one of our specialties, and as a Diamond Contractor we can back Mitsubishi installs with their best warranty.
Once a year is the general rule: heating before winter, cooling before summer. A yearly tune-up catches small problems early and keeps most manufacturer warranties valid.
Usually, yes. Our mild, wet winters are well suited to heat pumps, which both heat and cool from one system. We size each one to your home so you get the efficiency you're paying for.
Yes. Financing is available so the right system doesn't have to wait, alongside cash, card, check, and Venmo/Zelle.
Local experts, reliable service
Based in Renton, we serve homes and businesses across Washington with honest diagnostics and quality work that lasts.
Service areas
Need heating & cooling? Let's talk.
Tell us what's going on. We'll diagnose it right and only recommend what you actually need.
