Take Advantage of Our Free Online Quoting Tool
Trying to figure out what a new HVAC system might cost—but don’t have time to meet just yet? We understand how busy you are. That’s why we created a free online quoting tool you can use anytime. Just answer a few quick questions about your home, and we’ll give you a good HVAC installation estimate to help you start planning.
When you’re ready later, we’ll follow up with an in-person visit to confirm everything. As always, we offer free estimates for all heating and cooling installation projects. No pressured decisions. No big sales pitches. Just clear information to help you make the right call for your home.
Interested in HVAC Financing? Help Is Here
A new HVAC system is a big investment in your home’s comfort, and it’s a necessary one. But not everyone is ready to pay for it all at once. That’s why we offer special financing options to help you move forward with the system you need now.
Have questions? You can learn more on our website, and you can always call us and speak with one of our friendly team members. A more comfortable home is within reach—and we’re here to help you get there with financing and other offers on our products and services.
Our HVAC Installation for Heating and Air Conditioning Systems
San Diego has great weather most of the year, but when it's hot, it's hot—and those cooler mornings and winter evenings remind you how nice dependable heat can be, too.
Not every home has central air, and not every property needs the same setup. That's why we install a full range of heating and cooling systems, helping you find the HVAC installation San Diego residents need for complete home comfort. You can read more about our heating and AC services on our website and explore our HVAC system installation options below.
A central air conditioning installation is the best choice if you want one air conditioner to cool your entire home through ductwork. New systems cool more evenly, run quieter, and use less electricity than older models. When properly sized, they also help improve energy efficiency for monthly energy bills that feel more manageable.
A heat pump installation gives you both heating and cooling from one system by moving heat instead of creating it. In summer, it removes heat from your home, and in cooler weather it brings heat back inside. Many homeowners choose heat pumps because their energy efficiency can help with energy costs and they eliminate the need for separate heating and air conditioning systems.
Whether you're building or upgrading, a ductless mini split installation is a great way to add heating and cooling without ductwork. Indoor units mount on a wall or ceiling to provide targeted heating and cooling. They're perfect for garages, ADUs, home offices, additions, sunrooms, upstairs bedrooms, and homes without central air.
Your heating installation needs to be sized right because an oversized or undersized system creates unnecessary problems that you shouldn’t have to pay for. We'll make sure your heat pump or furnace installation matches your home's needs, then provide the heating service that helps it stay reliable for years to come.
Dust, pollen, pet dander, and even wildfire smoke can find their way indoors. An air purifier installation adds advanced filtration to your HVAC system, helping capture those tiny particles before they continue circulating through your home and affecting your indoor air quality.
If your home has a gas furnace, water heater, or fireplace, carbon monoxide detection is an important safety feature. A carbon monoxide detector installation provides an early warning if this dangerous odorless gas is present, helping protect your family day and night.
Homes near the coast, in canyons, or with poor ventilation often hold onto excess moisture that can affect how you feel and even damage your furnishings. A dehumidifier installation helps remove that moisture, reducing musty odors and making your home feel more comfortable without overworking your air conditioner.
Standard filters only catch so much. A media air cleaner installation upgrades your HVAC system with a deeper, high-capacity filter that captures more dust, pollen, and other airborne particles before they spread throughout your home. It's one of the easiest ways to improve your indoor air quality.
Your thermostat controls when and how your HVAC system runs, so it plays a big role in your home comfort and the equipment’s efficiency. A new thermostat installation gives you access to smart thermostats that let you adjust temperatures from your phone, create schedules, and more.
Moisture can collect inside your HVAC system as it cools your home, creating an environment where mold and mildew growth may develop. A UV air cleaner installation places ultraviolet light inside the equipment to help keep key components cleaner and support healthier indoor air.
Your indoor coil naturally gets damp whenever your air conditioner runs. A UV light installation helps keep that area cleaner, reducing odors, supporting better airflow, and helping your heating and cooling system continue performing the way it should between maintenance visits.
- INSTALLATION
Up to $1,500 Off a New System
Receive up to $750 in manufacturer rebates and up to $750 discount from Guthrie. Valid on select systems. Must mention promotion at time of estimate appointment. Not valid on prior sales. Cannot be combined with any other offers. Restrictions apply. See dealer for details. Offer expires 7/31/2026.
- 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 7/31/2026.
- 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 7/31/2026.
- 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 7/31/2026.
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.
As far as price goes, I paid a higher flat fee 12 years ago from one of the larger local companies. I'm very impressed with pricing and quality of work.
I highly recommend Guthrie & Sons and Rob.
Christian and his crew did a great job on the install everything was smooth from start to finish.
I would definitely recommend this company here in Murrieta.
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 🙂
