Guthrie and Sons | Heating & Air San Diego

Heating Maintenance & Tune-Ups

Your home’s heating system is a valuable investment. When it stops working efficiently — or fails entirely — it’s one of the first things you’ll notice affecting your home’s comfort.

Effective Heating Maintenance in San Diego County

Keep Your Heater in Tiptop Shape

Your home’s heating system is a valuable investment. When it stops working efficiently — or fails entirely — it’s one of the first things you’ll notice affecting your home’s comfort.

Annual heating tune-ups and maintenance checks help prevent unexpected breakdowns and complex repairs. With professional maintenance, you’ll guarantee the best performance from your home’s HVAC, reducing energy waste overall.

Guthrie & Sons Heating, Air & Solar offers premier heating maintenance services in San Diego County, including San Ysidro, Alpine, Fallbrook, and Oceanside. Our NATE-certified technicians work closely with homeowners to keep heating systems running at their best all year.

We’re San Diego’s HVAC experts. Schedule a heating tune-up for your San Ysidro, CA, home today.

Top-Rated Heating Tune-Ups

As a heating system ages, its effectiveness is usually impacted by regular wear and tear. Guthrie & Sons provides comprehensive heating services for split systems, heat pumps, packaged units, and ductless mini-splits. When paired with expert installation, heating maintenance prolongs the lifespan of your home’s heating.

During a heating maintenance service, you can expect us to:

  • Test the thermostat and its control settings
  • Clean outdoor equipment
  • Inspect a heat pump’s condenser, evaporator, and condensate drain
  • Check refrigerant levels
  • Remove blockages in mini-split systems
  • Clean and replace air filters for improved airflow
  • And more

Benefits of Heating Maintenance

Maintenance plays a vital role in the overall function of a home heating system. By scheduling an annual tune-up, homeowners can enjoy benefits like:

  • Lower heating costs: Regular maintenance ensures your system is at its most efficient, reducing energy consumption.
  • Improved indoor air quality: Clean air filters in heat pumps promote better ventilation and a dust-free environment.
  • Fewer repairs: Identifying potential issues early helps prevent costly breakdowns.
  • A longer-lasting unit: Thorough maintenance can add years to your ductless mini-split, heat pump, or packaged unit.
  • Greater peace of mind: No matter how cold it gets outside, you’ll know your heating system is up to the task.

Signs You Need a Heating Tune-up

Even though San Diego enjoys a mild winter, temperatures can still drop below a comfortable degree, especially at night. If you’re noticing any of these heating issues, consider scheduling a tune-up:

  • Higher-than-average bills: Unexplained spikes in utility bills often signal an inefficient or malfunctioning HVAC system.
  • Inconsistent or uneven heating: Be aware of cool drafts or concentrated areas of warmth.
  • Musty odors: Clogged drain lines in heat pumps can trap moisture, leading to mold growth or musty smells.
  • Strange noises: Rattling, grinding, or squealing sounds aren’t normal — they point to issues with a blower fan, compressor, or motor.

Choose Us for Heating Maintenance in San Diego County

If it’s been a while since your home heating system was checked, schedule an annual tune-up with us today.

As a full-service HVAC provider, we offer expert maintenance for all brands of heating and cooling units, performed by licensed and insured technicians. If your system is beyond repair, we offer free estimates for replacements.

The San Diego community appreciates our honest approach — we offer upfront pricing before any service begins.

Trust us for the highest standard of care. Schedule a heating tune-up or inspection today to keep your San Diego, CA, home comfortable year-round.

Heating Maintenance FAQs

How often should I schedule heating maintenance in San Diego?

We recommend scheduling heating maintenance at least once a year. An annual tune-up will significantly improve the efficiency of your home’s temperature control.

Scheduling a service in the fall ensures that your heating system will be working at its best right before the coldest months.

Change or clean your air filters regularly and ensure there are no blockages around vents or registers. For heat pumps, make sure the outdoor unit is free from debris like leaves or dirt.

Heat pumps typically last 10 to 15 years with proper maintenance. If you have an older unit that requires frequent repairs, it may be time to consider replacement.

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Current Offers

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Save on a maintenance, repair or new installation.

PROMOTIONS

CURRENT OFFERS

WHY CHOOSE US?

Family-Owned & Operated Since 2005

Guthrie & Sons Heating, Air & Solar was founded by the first generation, Wes Guthrie. Built on old-school morals and family values, Wes believed in treating each customer like family and always doing right by the customer.

The company has since been passed down to the second generation – Matt and Ben Guthrie. Continuing their father’s legacy, Matt and Ben continue to serve the community of San Diego County and beyond with professionalism and top-notch customer service.

WHY CHOOSE US?

Our 100% Customer Satisfaction Guarantee

Installing a new heating and air system is an important investment in your home, so you shouldn’t have to take a risk when choosing a contractor. With over 45 years of combined experience, we’re confident our team will expertly handle your comfort system. If you’re not completely satisfied with the installation of your new system within 30 days of installation, we’ll remove the equipment and refund your money.

No hassles, no questions asked, it’s just that easy.

WHY CHOOSE US?

Honest Pricing With No Upsells

When you need assistance with your heating or air system, our certified technicians will come to your home and evaluate your system. If it could use a repair that will enhance its safety and/or performance, we’ll provide a recommendation. Otherwise, if it’s performing optimally, we’ll let you know. We won’t try to sell you anything you don’t need. That’s the Guthrie promise.

WHY CHOOSE US?

Join Our USA Membership To Protect Your HVAC System

A “set it, and forget it” approach when it comes to maintaining your heating and air system. Join our maintenance plan and become a USA member. We’ll contact you once a year (if you’re on a furnace/heater-only plan) or twice a year (if you’re on a furnace/heater and AC plan). USA members also receive exclusive benefits, such as a 15% discount on repairs, priority service, and more.

OUR REVIEWS

FROM OUR CUSTOMERS

Don’t just take our word for it. See what over 1,200+ customers have to say about working with us!

Scott Sypkens
23:32 11 Mar 25
We first hired Guthrie and Sons to replace a furnace after comparing proposals from several heating and air companies. They’ve since been back for annual check ups, and today Kareen came to diagnose and resolve an issue with our mini-splits. My experience each time, including today, is that they hire friendly, knowledgeable people who do good work. They’ve never tried to upsell or do anything unnecessary, which is the way it should be. I’d recommend them to anyone who asks.
Marilyn Rivas
20:07 09 Mar 25
They always come out quickly. They are so polite and careful.
Steven Wheeler
19:28 07 Mar 25
Good technician did everything right yet our heater still not workingJonathan gave us the likeliest problems so we’ll have to get it fixed
Dmitriy
04:01 07 Mar 25
My AC was not working for seven months. Three other companies tried to fix it with no success. Don’t make the same mistake I did—go straight to Guthrie & Sons! They are absolutely worth every penny.
Cecilia Benevich
22:17 05 Mar 25
Rick
21:38 05 Mar 25
Experienced technician gave me the particulars of a replacement HVAC system
Daylan Dauchot
21:28 05 Mar 25
Courteous, in-time, helpful, honest. Would recommend.
Xinxin Wang
22:05 04 Mar 25
Tom Barden
18:26 04 Mar 25
Adair Cooke
19:02 03 Mar 25
Jonathon is a great technician. He is very willing to answer any questions and explains things very well. He is very transparent with letting us know cost, finance options, different furnace models and anything else we want to know. I would highly recommend him to anyone looking for furnace repair or replacement.
Bratso Krsic
00:29 28 Feb 25
Guthrie and Sons took on the challenging project of installing an HVAC system at St. George's Serbian Orthodox Church of San Diego, CA. They were the only company among the six we consulted that saw the project through to the end. The members of our congregation are not just happy, but thoroughly satisfied with the heating and air conditioning. The system, split units/floor units with condensers outside, was installed with minimal intrusion onto the church's artwork. Despite the project taking longer than expected due to permit delays, the results were well worth the wait. We highly recommend Guthrie and Sons Heating and Air.
Jennie Cornsweet
00:10 28 Feb 25
Have been using Guthrie & Sons for several years now and purchase my new HVAC system with them. They do our yearly maintenance and have always been professional, efficient and reliable. Jonathan was the tech that came today and I want to thank him for his great work and great attitude.
Cory Mapston
23:13 27 Feb 25
Always excellent service- customer service oriented - solved our problems promptly
Boris Fratkin
20:56 27 Feb 25
Got recommended this company by my boss who had a whole mini split system installed in his house. Was able to schedule a service appt same week. On morning of service Daniel W. shows up, listens to all of my concerns, and gets right to work. Daniel was able to investigate the problem, took his time making sure he's eliminated all other possible issues before coming up with a recommendation to my original proposal. Fixes up the issue then checks to see if it is working properly. Not only that, he stays with me few more minutes and addresses all the questions I had for him regarding the system, as a whole. Absolutely amazing.I'll be calling back to schedule maintenance services with them going forward. They won me as a customer.
Ehud Kedar
23:05 26 Feb 25
Zach was very knowledgeable and flexible. He did not push us to purchase a new furnace and instead came up with a plant to continue monitor the furnace and air condition. The inspection was good and he replaced a battery. Looking forward to work with him in the future
Diane Brotherton
17:41 26 Feb 25
Vlad was very friendly, answered all my questions and gave me information I didn’t know. Would call again for any thing I need.
Dave Valia
23:44 25 Feb 25
Jonathan was great. Showed up on time, polite and thorough. Found the problem and did a full check of my wall furnace. Was in a d out in under an hour.
Helen McGrath
23:07 25 Feb 25
Great service very nice guy thanks very much
Ayyappan R
18:03 22 Feb 25
Jim Hall
21:25 21 Feb 25
Very helpful. We are Raving Fans of this team!
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CONTACT US

Book an Appointment Today

If you have questions or if you’re ready to schedule an appointment with our team of certified technicians, give our office a call. We offer 24/7 live answering. For your convenience, you can also schedule your appointment instantly online.