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Trusted Credentials & Customer Assurance from All 1 Mechanical

All 1 Mechanical is a licensed HVAC contractor serving Roseville, California and surrounding areas, offering professional heating and air conditioning services backed by verified licensing, a BBB A+ rating, strong customer reviews, service warranties, and a documented commitment to customer satisfaction. These credentials help homeowners and businesses choose a dependable HVAC provider with confidence.

Licensed HVAC Contractor Serving Roseville, California

All 1 Mechanical operates as a licensed HVAC contractor in the state of California, with licensing status consistently presented across its official website and public business profiles. Proper licensing confirms compliance with California contractor regulations and ensures that HVAC installations, repairs, and maintenance are performed according to established safety and mechanical standards.

As a locally operated business based in Roseville, All 1 Mechanical understands regional climate demands, system efficiency requirements, and local building considerations, reinforcing trust for residential and commercial customers seeking qualified HVAC service in the area.

HVAC Emergency? We’re Here Now.

24/7 Rapid Response for Any Heating or Cooling emergencies!

Call Now for Immediate Service
916-345-3743

BBB Accredited Business with A+ Rating

All 1 Mechanical is an accredited business with the Better Business Bureau, holding an A+ rating. BBB accreditation reflects a demonstrated commitment to ethical business practices, transparent communication, and responsiveness to customer concerns.

This accreditation serves as an independent trust signal for homeowners and property managers evaluating HVAC contractors based on reputation, accountability, and long term reliability.

What Makes Us a Community Name?

Trusted for a Reason

Trained Technicians

All of our technicians complete a 5-year training and apprenticeship program.
Satisfaction Guaranteed

We’re so confident you’ll be happy with our services, we guarantee it.
Ask About Our Warranty

We back all of our services with a warranty for your peace of mind.
Affordable Financing Options

We offer a variety of options. Call us today to learn about the details.
Around-the-Clock Help

Emergencies don’t wait for office hours. You shouldn’t have to either.
Locally Owned & Operated

We are dedicated to serving our community with top-notch service.

Proudly Serving Customers in Roseville & Beyond!

Antelope
Auburn
Carmichael
Citrus Heights
El Dorado Hills
Elk Grove
Fair Oaks
Folsom
Granite Bay
Lincoln
Loomis
North Highlands
Orangevale
Penryn
Placer County
Rancho Cordova
Rio Linda
Rocklin
Roseville
Sacramento
Sacramento County

Our Customers Love Us!

Verified Customer Reviews and Online Reputation

Customer feedback further supports the company’s credibility. All 1 Mechanical maintains a 4.8 star rating on Google based on dozens of verified customer reviews. These reviews consistently highlight service quality, responsiveness, and professionalism.

In addition, the company receives positive feedback through Facebook Reviews from real local customers. Together, these platforms provide social proof that reinforces trust and supports informed decision making.

Lali S

28. May, 2024.

Highly recommend All 1 for great service. John provides exceptionally great customer service. Will certainly call him back if we need service again.

Lyndsey B

28. May, 2024.

All 1 mechanical, I highly recommend! Very professional, affordable, and informative. You can tell that they care about the work that they do. 5-star rating work!

Carl W

28. May, 2024.

We needed a new thermostat and some maintenance done - these guys are professional and courteous. Thanks and happy we went with All 1!

Mike P

28. May, 2024.

Jon was outstanding! Knowledgeable, professional, honest, and trustworthy. Was right on time, diagnosed the issue, and fixed the problem at a fair price. I highly recommend these folks!

Tim B

28. May, 2024.

Awesome company. Great service and very professional. They knew exactly what the problem was with the furnace right away. We will definitely use them again!

Sarah C

28. May, 2024.

A1 was extremely prompt and professional. My AC was not blowing cold air and they were able to fix it quickly, which is a huge comfort to my family as the days are getting warm. In addition, they took the time to properly clean my unit. I'm so grateful!!

Matthew M

28. May, 2024.

Had a great conversation with John, he was very patient and knowledgeable explaining some different options where the big chains won’t talk to you unless you pay for someone to come out. I will be using this company for future work and highly recommend these guys, thanks John!

Jon R

28. May, 2024.

We have a 23-year-old home with 2 AC units. We have been nursing one of the two for 5 or 6 years. We KNEW we needed to take action but at the same time, we were not trying to break the bank. We got three separate bids — each of which contained several options. All bids were from highly-rated, reputable, long-term, local businesses. In the end, All 1 Mechanical was very competitively priced and gave us several ideas and options that would work for us. When it came time to do the work they showed up on time (just a few days after the agreement) and did what they agreed to with dispatch. There were zero mid-stream upcharges or hiccups. All 1 Mechanical uses top-quality equipment (Trane/American Standard) and they cleaned up their work flawlessly. We are VERY satisfied!

Marie C

28. May, 2024.

Jon is knowledgeable, professional, and well-prepared. He was upfront about pricing and work. Furthermore, he was knowledgeable about safety information and provided me with comprehensive information about my heating and cooling system. He was also able to adjust to last-minute scheduling changes on my end. Genuinely wonderful customer service.

Thomas R

28. May, 2024.

We arrived home from vacation on a Saturday night to a partially frozen AC system and 78 degrees in our house. Jon from All 1 Mechanical came to our home the next morning (Sunday), diagnosed the issue, and repaired it. He was efficient, knowledgeable, professional and honest. He refilled the AC refrigerant that other companies in the past had incorrectly or dishonestly said could no longer be done due to environmental laws and/or trying to sell us a complete, new HVAC system for thousands of dollars! Thank you Jon and All 1 Mechanical

Daisy M

28. May, 2024.

I can't say enough good things about Jon. He was recommended to us by my nephew who used to work with Jon. He was upfront about what we needed, listened to what I could afford, and went from there. He was on-site and on time during the whole installation. He even came back with a stand for the HVAC system that he replaced on the roof. He was so professional and respectful. Unlike the other company that we called, Jon stayed on top of his promises. I would recommend him anytime!

Cherry H

28. May, 2024.

This is the 2nd time I used this company for HVAC repair. I have been very satisfied with the service and the professionalism of the techs. Robert, my Tech, was polite and made me feel comfortable inviting him into my home. He explained the repair and showed me the part that was burnt out. He ordered the part over the phone when he was at my house. He called me back and made another appointment to come out and finish the job. He called me and made sure that it was at my convenience that he installed the part and the system is working great now. I would highly recommend this company for all my HVAC needs and to my friends too.

Linda R

28. May, 2024.

I did not have heating in my newly renovated mobile home. I found out the contractor had demolished a lot of the existing duct system. Robert from All 1 came out and was very thorough in his explanations and the questions we asked about the duct system. After another estimate (they were pushing for the replacement of the heater and air conditioner) I decided to use All 1 Mechanichal. It was a very good decision. Adam and Josh were the installers and they were extremely nice and professional. Adam taught me a lot about my heating system and my home is warm.

Mike R

28. May, 2024.

I was very satisfied with the service that I received from this company. Robert, the tech was very professional, was on time and called ahead to confirm. He was very thorough and explained everything to me in a language in which I could understand what the problem was and what he is going to do to fix it. Happily, he went and got the part the same day and fixed it as the temperatures were over 100. I would definitely recommend this company for all my HVAC needs.

Chris S

28. May, 2024.

We were in a very bad spot with the freezing cold weather and our children in the home reminding me how cold our home was due to our system ceasing to work on Christmas Eve. I have a York system which is only 4 years old. I have a home warranty company that was not really providing any immediate assistance or interested in rushing my furnace issue. I decided to contact All 1 Mechanical. Robert showed up promptly and was courteous and knowledgeable. Robert got straight to work, identified the problem with my system’s control board, and ordered the part ASAP. Part arrived the following day and my system is up and running smoothly. Robert also followed up with me the next day to ensure everything is running smoothly. I recommend and will definitely use this company again in the future as needed. Thank you very much!!!

Mallory W

28. May, 2024.

The All 1 Mechanical team was super helpful in fixing our AC unit and complicated system flush. We were without heat for weeks dealing with a slow and unresponsive competitive company when we finally had enough we reached out to Jon and the team and they quickly jumped to help us get our system fixed. It was a complicated project and the team put in many hours of diligent work to properly fix the system and all of the underlying issues that were happening. I would highly recommend using their team for any of your needs.

Joan R

28. May, 2024.

My AC was not blowing cold air. I called a well-established company first to come see what the problem was. That technician said our compressor was shot (which was true). He said it would cost $6,573 to replace and it would take 10 days to get the part. Then he proceeded to try to talk us into a whole new system for $15,000 which he could have installed in just two days! I said No Thank You. I called All 1 Mechanical and Jon, the owner, answered the phone. He asked questions, was patient, and was very professional. He quoted me a price which was $3,000 less than the other company. I accepted and had two technicians out The Next Day. They installed a new compressor and fixed some other minor problems. The technicians, Robert and Jay, were friendly, professional and took the time to explain everything they did. They told me my HVAC system is fine. The temperature today is going to be 107. I'm so thankful to Jon and his team. Don't waste time figuring out who to call: Call ALL 1 MECHANICAL. You will be glad you did.

Rich H

28. May, 2024.

My AC unit broke down early in the evening on the hottest day of 2022. I called All 1 Mechanical based on a Facebook recommendation. Given the heat wave, my expectations for a rapid response were low but I was told they would figure out a way to fit me in the very next day. The technician arrived on time and very quickly diagnosed the issue and promptly repaired my unit. The technician was very detailed in explaining the issue and very transparent about the cost and options for the repair. My prior experience with HVAC contractors has left me skeptical about up-selling, especially when I am faced with a broken unit with temperatures above 110 degrees. None of these concerns were present in my experience with All 1 Mechanical. Thank you for such a great experience!

Terri M

28. May, 2024.

John was quick and flexible with my schedule. He is honest and reliable. Andrew did a great job cleaning and replacing the thermostat. He took the time to help me install the WiFi app on my phone. I would recommend these guys to anyone.

Sara T

28. May, 2024.

I am incredibly grateful for All 1 Mechanical! They were responsive, professional, and honest! I felt very confident in their recommendations and my system is running great! Highly recommend!

Kelly C

28. May, 2024.

Over 100-degree weather and my a/c unit not working, I was miserable. All 1 Mechanical was referred to me. They were able to send a technician, Robert and Jay came out the next day. Both were professional and knowledgeable. I'm extremely happy with the service. And their prices are lower than any company in the area. I highly recommend All 1 Mechanical.

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Company Credentials & Trust

Quick Links

10% OFF

Military, First Responders, & Senior Citizens

Trusted Credentials & Customer Assurance from All 1 Mechanical

Licensed HVAC Contractor Serving Roseville, California

HVAC Emergency? We’re Here Now.

BBB Accredited Business with A+ Rating

What Makes Us a Community Name?

Trusted for a Reason

Trained Technicians

Satisfaction Guaranteed

Ask About Our Warranty

Affordable Financing Options

Around-the-Clock Help

Locally Owned & Operated

Proudly Serving Customers in Roseville & Beyond!

Our Customers Love Us!

Verified Customer Reviews and Online Reputation

Request an Appointment

Our Expert Advice

Automated Energy Management Systems: What Roseville Businesses Should Know

Is Your Heater Ready for Fall? A Pre-Season Heating Maintenance Guide for Roseville Homeowners

Wildfire Smoke and Your Home: Indoor Air Quality Solutions for Placer and Sacramento Counties

Quality heating & air conditioning solutions

Company Credentials & Trust

Quick Links

10% OFF

Military, First Responders, & Senior Citizens

Trusted Credentials & Customer Assurance from All 1 Mechanical

Licensed HVAC Contractor Serving Roseville, California

HVAC Emergency? We’re Here Now.

BBB Accredited Business with A+ Rating

What Makes Us a Community Name?

Trusted for a Reason

Trained Technicians

Satisfaction Guaranteed

Ask About Our Warranty

Affordable Financing Options

Around-the-Clock Help

Locally Owned & Operated

Proudly Serving Customers in Roseville & Beyond!

<img decoding="async" class="title_img" src="https://www.all1mechanical.com/wp-content/themes/all1mechanical/assets/img/fav_icon.png" />Our Customers Love Us!

Verified Customer Reviews and Online Reputation

Request an Appointment

Our Expert Advice

Automated Energy Management Systems: What Roseville Businesses Should Know

Is Your Heater Ready for Fall? A Pre-Season Heating Maintenance Guide for Roseville Homeowners

Wildfire Smoke and Your Home: Indoor Air Quality Solutions for Placer and Sacramento Counties

Our Customers Love Us!