We’re Your Local, Family-Owned Furnace Repair Company in North Park
Whether you’ve lived in North Park for years or you’re new to the neighborhood, we’re here to help. As a top North Park furnace repair service, we work throughout the area, including the Dryden Historic District, Burlingame, Altadena, and around 30th Street and University Avenue.
From homes near Observatory North Park to those along Juniper Canyon, we know the area well and have local technicians right in your community.
North Park has a wide mix of older Craftsman homes, mid-century houses, ADUs, and newer remodels, and we’re experienced working on both older furnaces and modern high-efficiency systems. Whatever type of home or heating setup you have, Guthrie & Sons can help keep it running.
Fix It or Replace It? We Look at the Whole Picture
When a furnace has a problem, the big question is usually whether fixing it makes sense or if it’s time to replace it. That decision comes down to a few basics—how old the furnace is, what part failed, and how well it’s been working overall. One repair doesn’t automatically mean you need a new system.
- Furnaces under 10 years old are usually worth repairing, especially when the issue involves parts like ignitors, sensors, switches, or control boards.
- Furnaces that are 10 to 12 years old may still be good candidates for repair if the problem is limited and the system hasn’t needed frequent service.
- When a major part fails—such as the heat exchanger, blower assembly, or gas valve—replacement is often the better option.
If your furnace is 15 years or older, has trouble heating the home, or keeps needing repairs, a furnace replacement may be the smarter choice. We’ll explain your options clearly and go over financing, rebates, or special offers to help make the next step easier.
Furnace Repairs You Can Count On for These Issues and More
We work on older wall and floor furnaces in original Craftsman and bungalow homes, forced-air systems added during past updates, and newer high-efficiency furnaces from recent remodels. The most common causes of furnace repairs here come down to aging parts, airflow limits, worn controls, and systems being pushed hard during colder nights. Our technicians are highly trained and have seen just about every combination of issues you can imagine.
When you’re wondering what’s wrong with my furnace, the answer can be one thing—or several working together. That’s why we start with a full inspection, explain what we find, and walk you through your options.
Furnace Maintenance That Saves You Time, Money, and Stress
No one wants to deal with furnace problems again in a few months. While some breakdowns can’t be avoided, many start as small issues that build up over time. Regular maintenance helps stop that from happening. A yearly tune-up—best done in the fall—lets us catch wear and tear before colder nights put extra strain on your system. Everything can seem fine on the surface until one cold night shows what’s been building behind the scenes.
That’s why we offer the USA Membership Plan. Members receive annual tune-ups, service reminders, priority scheduling, discounted repairs, and more. It’s an easy way to stay ahead of problems and keep both your furnace and air conditioner running strong year after year. You can learn more online and ask your technician (or call our office!) for more info about how our memberships have paid off for countless customers.
- INSTALLATION
$625 Comfortably California Rebate
Valid on select systems. Valid on residential properties only. Can be combined with HEERHA rebates, $2,000 heat pump Federal Tax Credit and $600 electrical upgrade Federal Tax Credit. Rebate available until funds last. Restrictions apply. See dealer for details. Offer expires 3/31/26.
- INSTALLATION
0% APR for 24 Months
Get 0% APR financing for 24 months on a new heating or air conditioning installation. 0% interest with 24 equal monthly payments.
Financing subject to credit approval. Valid on select systems only. Valid on residential properties only. Cannot combine with other offers. Must mention promo at time of estimate appointment. Restrictions apply. See dealer for details. Offer valid for an estimate appointment scheduled before 3/31/26.
- REPAIR
Free Diagnostic w/ a Repair
Your diagnostic service call fee will be waived if you proceed with a repair.
Cannot combine with other offers. Restrictions apply. See dealer for details. Offer expires 3/31/26.
- WATER HEATER
Free Estimate on a New Heat Pump Water Heater Installation
Valid for an estimate for a new hybrid heat pump water heater installation or replacement.
Restrictions apply. See dealer for details. Offer expires 3/31/26.
Real Reviews From Real Customers
We do things differently, and our customers appreciate it. See what some of our thousands of satisfied customers have to say about working with us.
Please congratulate them for a job well done!
We worked with Vlad T., who had previously been out to our home and saved us tens of thousands of dollars by getting our existing AC unit up and running when other companies were pushing for a full replacement. That experience alone earned our trust.
Now that we’re finally ready to purchase new units, there was no question that Guthrie & Sons was the only company we would consider, and Vlad was the obvious choice. He was extremely professional, punctual, and exceptionally knowledgeable, taking the time to explain options clearly and thoroughly. His expertise and honesty made the entire process straightforward and stress-free.
If you’re looking for an HVAC company you can truly trust—one that values integrity, quality workmanship, and customer service—I cannot recommend Guthrie & Sons and Vlad T. highly enough. This is how service should be done.
I only wish the annual service was cheaper 🙂
Zach M. came by and installed on new one. He was extremely professional and completed the installation promptly.
This was another great experience all around and I gladly recommend Guthrie and Son's for all your HVAC needs.
From start to finish, their team was outstanding. They worked incredibly hard, treated our home with respect, and left everything spotless—truly the cleanest job site I’ve ever seen after a major project. The installation itself was seamless, and the quality of their work shows in every detail.
If you’re looking for a company that combines deep knowledge, excellent craftsmanship, and genuine care for their customers, Guthrie & Sons is it. Absolutely five stars across the board!
What really stood out was his problem-solving ability and willingness to go the extra mile to ensure everything was operating as it should. He communicated clearly throughout the process, kept us updated, and made sure we felt confident in the work being done.
It’s not often you come across someone who combines technical expertise with such a strong work ethic and positive attitude. We’re very grateful for his efforts and would highly recommend Kareen to anyone needing reliable HVAC service.
Vlad came out to provide an estimate and was able to size an HVAC system that worked well for my house.
They installed it quickly, without issue and helped me set up an app on my phone to control.
The system is working great to heat and cool my house and is whisper quiet.
Highly recommend going with Guthrie and Sons if you want a high quality experience for large and important purchases.
