Guthrie and Sons | Heating & Air San Diego

Heating System Tune Ups & Maintenance

When it comes to your heating system, if it’s working and pumping hot air you might not think to get it serviced. Think again! Maintaining your heating system with a tune up is crucial to keep your system working safely and efficiently. Turn to the certified experts at Guthrie & Sons Heating, Cooling & Solar to keep your heater in tip-top shape.

Furnace and Heater Maintenance & Tune Up Services

Keep your heater in tip-top shape

If your heating system turns on, you might think it doesn’t need to be serviced. Maintaining your system with annual maintenance (also known as tune ups) protects your system and ensures it runs safely and efficiently. At Guthrie & Sons Heating, Cooling & Solar, we provide thorough heating maintenance that’s designed to keep your unit running in peak performance for continued delivery of dependable, affordable warmth in your home.

Residential Furnace & Heating System Maintenance

Scheduling regular heating maintenance is the best way to ensure long-term performance of your HVAC system and to certify that it continues operating safely and efficiently. Our certified technicians are trained to deliver the manufacturer-approved maintenance service that your heating system needs in order to:

  • Ensure your system is working safely
  • Keep your energy bills low
  • Avoid costly repairs
  • Deliver year-round comfort
  • Extend its lifespan
  • Maintain warranties in place
  • … And more!

Commercial Heating System Maintenance

When it comes to your business, the comfort of your customers is crucial. You don’t want your heating system to fail during business hours. Maintenance on commercial heating systems are typically more complex. Turn to the experts at Guthrie & Sons Heating, Cooling & Solar to maintain your business’ heating system and keep your customers comfortable year-round. Our certified technicians are trained to maintain heating systems to manufacturer standards. 

Our Furnace and Heater 26 Point Tune Up Checklist

We will clean the debris, dirt and dust particles on and around the furnace

We will clean your air cleaner to ensure it continues to provide optimal air quality.

If you have a washable air filter, we will clean it for you. If you have a dispoable air filter, we will replace it for you. Customer must supply filter or we can provide one at an additional cost.

If your system has a U.V. light bulb, we will replace it for you. Customer must supply U.V. light bulb or we can provide one for an additional cost.

If you have a humidifier pad, we will replace it for you. Customer must supply humidifier pad or we can provide one at an additional cost.

We will clean the blower motor, wheel and housing to ensure optimal performance.

We will clean and adjust burners to ensure safe operation.

To ensure safe operation.

To ensure safe operation.

Ensure there are no leaks for safe operation.

For the safety of your family.

To ensure safe operation.

To ensure safe operation.

Safety function to ensure the system does not turn on when the door is off. 

To ensure system runs optimally.

Check for signs of damage to ensure safe operation.

To ensure safe operation.

To ensure system runs optimally.

Check for rips, tears, cracks or any other impairment to your ductwork which can restrict airflow.

To ensure your system runs optimally.

To ensure safe operation.

To ensure safe operation.

To ensure safe operation.

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Current Offers

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Save on a maintenance, repair or new installation.

Contact the Experts at Guthrie & Sons

Ready to take the next step? Give our office a call at (619) 269-3013 to schedule an appointment with one of our experts technicians. Our NATE-certified technicians can repair any make or model and get your heater up and running today.



The Guthrie Way

Why Choose Us

As a family-owned company with our name on the line, we take pride in our work.


Guthrie & Sons is family-owned and operated for two generations. We take pride in treating each customer with the dedication, quality, and care you deserve.

5-Star Service

We take pride in setting the gold standard for HVAC service. Our dedicated team of experts is committed to delivering nothing less than 5-star quality service in every aspect of our work.


With decades of experience in the HVAC industry, our team of seasoned professionals know heating and cooling inside and out. Our expertise shines through in every installation, repair, and maintenance service we provide, ensuring your home stays comfortably climate-controlled.

Honest Pricing

As a family-owned company, we aim to keep costs as low as possible for our customers. When you partner with us, rest assured you will receive expert service at an affordable, competitive price.

No Upsells

We believe in straightforward, no-nonsense HVAC service. When you choose us, you won't encounter any upsells or hidden fees. We're committed to providing you with the services you need, without any unnecessary extras. Trust us for HVAC solutions that prioritize your comfort and your budget.



Don’t just take our word for it. See what over 850+ customers have to say about working with us!

Joshua JoshuaJoshua Joshua
22:01 15 Jul 24
Every experience I have had with Guthrie and sons has been awesome. I really appreciated their help.They installed a new HVAC system for me and have come out to make sure it was dialed in for everything I was looking for.
Kasey MurphyKasey Murphy
21:22 15 Jul 24
Love this company. Juan was our technician and diagnosed the problem with our AC unit right away! He was fast, efficient, honest, and communicative. Ten out of ten!
Nina TomkiewiczNina Tomkiewicz
23:42 14 Jul 24
I used Guthrie and Sons for getting my a/c fixed. The company communicated well and was accurate with their estimated time frame and arrival. Jonathan did a great job in finding the problem, giving me options for how to resolve it, and then fixing it. I also appreciated the detailed invoice and explanation of work done. Overall it was a great experience and I’d recommend them!
Liza KopchinskyLiza Kopchinsky
00:05 12 Jul 24
J Leslie CrawfordJ Leslie Crawford
20:48 10 Jul 24
Knowledgeable and helpful. Wanted a mini-split air conditioning system for our home and Anthony understood why and had good suggestions for the correct size of the units required. A plus was they offered 12 months at 0% financing upon approval.
19:30 10 Jul 24
Jonathan, the tech, was punctual and professional. Very pleasant to do business with.
Richard KeelyRichard Keely
22:41 09 Jul 24
Zachary was great, patiently took apart the unit, discovered the issue and put everything back together. He was also friendly and endured my lame questions with a smile!
21:04 09 Jul 24
Same day appointment even during the summer. Found the issue, and fixed it. I will call again if any future issues happen. I highly recommend! Thank you
Dale RayDale Ray
22:51 08 Jul 24
Lindsay McQuienLindsay McQuien
21:07 05 Jul 24
Marcie MilnerMarcie Milner
22:44 04 Jul 24
Jonathan was extremely knowledgeable, on time, and thorough. He was able to identify the problem with our A/C and fix it on site. I’d definitely recommend Guthrie & Sons!
Karen BarrettKaren Barrett
20:42 03 Jul 24
By highly recommended these people.
Gerry PopeGerry Pope
03:22 03 Jul 24
Jonathan was courteous and efficient.Got the job done quickly..
Anita PittmanAnita Pittman
02:50 02 Jul 24
Bill ThompsonBill Thompson
00:37 01 Jul 24
moloud Azadmoloud Azad
17:22 28 Jun 24
Excellent expression working with this company! Vlad came and resolved our issue immediately!! I highly recommend working with this, and you won’t regret it.
Jeff YoungrenJeff Youngren
16:50 28 Jun 24
Been recommending these folks to everyone I know! FINALLY a prompt, honest, and FRIENDLY company to work with. Even in the midst of a heat wave they were able to squeeze us in and they showed up and resolved some issues immediately and ordered parts for the other issues. We had Rob out and he was fantastic!
Mike WrightMike Wright
13:41 28 Jun 24
Excellent service by a technician who clearly explained everything.
James TaylorJames Taylor
19:43 27 Jun 24
they came out to fix our units and found that new pumps need to be ordered and replace the ones we have.
Lorraine RiehmanLorraine Riehman
20:22 26 Jun 24
With Amy's help, Vlad was able to come to our home promptly, access the water damage issue and make the needed repairs.

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