AC Installations - AC Repairs - AC Maintenance - AC Replacement

Air Conditioning Services in Novato, CA

I can help you make your home cool when you need it most. My air conditioner installation, maintenance, and replacement services are affordable and of great quality. Let me help you battle the summer heat by keeping your home comfortable and pleasant throughout every season.

Get a FREE Estimate!

Call (415) 897-4015 or fill out the form below and I will call you back.

Horizon Plumbing, Heating and Air Inc.

About Me

For years, I’ve helped residents in Novato, CA effectively cope with the summer heat. As a result, I’ve developed a reputation for being reliable and trustworthy.

When I’m doing AC maintenance, I’m able to discover any problems before they have a chance to expand and become more serious.

Your well-being and security are at the top of my priority list. Even though I’m well aware of the dangers associated with my work, I take every precaution to ensure my clients are safe. Because of this, I take extra care to guarantee that each part of my work is done correctly.

Why Is It Important For Your AC System To Be In a Great Condition

Your air conditioner performs a critical function: it keeps you and your family comfortable inside. When an air conditioner fails, the repair may be as costly as it is annoying. A new air conditioner will also increase the value of your home. Prospective homebuyers will always choose a better, more efficient, and reliable air conditioning system because that means they will not have to replace the home’s HVAC system. Below are listed some of the benefits of a new air conditioning system.

Reduced Maintenance Cost

As an air conditioning system ages, it requires more frequent repairs and maintenance, all of which add up in cost. As original parts become more difficult to find, expenses increase, as do the risks of mismatched components, which could result in extra repairs.

Improved Life Quality

New air conditioning systems remove dust, pollutants, allergens, and viruses from the air much more reliably. Increased comfort that the new AC systems provide will enable you to enjoy your house regardless of the temperature outside and will allow you to sleep better as a result.

Energy Savings

AC systems that are over 15 years old will consume more energy than modern air conditioning systems and over time, the energy savings will be sufficient to pay for the new device. Get in touch and let me help you choose the best air conditioning system for your unique needs.

Customer Reviews

Ron H.
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“Darren was a pleasure to work with. He tried several approaches to solve the problem and got everything running properly although the parts were discontinued 12 years ago.”
Jacquelynne O.
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“My clients hired Darren to fix some clogged drains and he has been nothing but professional and accommodating to them, especially since they can be difficult to work with. He charged a fair price for his time and was available to start...”
Roz G.
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“Darren did a great job on our duct work and running a gas line for us to our fireplace. He and his assistant worked really hard in the small difficult space under the house..."
Susan A.
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"Darren was fantastic! Called, set up time, called back, came by to look, went to get parts, came back on time as scheduled & fixed the leak! All this in one day! Courteous, clean, better price than another plumber..."
Ariana S.
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"Customer service was excellent. Darren answered my calls - or responded quickly if I ended up with voice mail. He communicated clearly and explained every step. I would recommend this company for both furnace and water heater replacement."
Margo L.
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"Darren was great, he called me right away and called before he came over. He analyzed the job and told us what was needed and completed the job on Monday. I would definitely use this company again."
Nan A.
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“I received excellent service for installation of a one-piece toilet . Darren was efficient and knowledgeable throughout the process. While passing through, he also noted a longstanding issue with a faucet and quickly resolved it.”
Matt G.
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“I'd give Darren more than 5 stars if I could. My wife and I purchased a true fixer upper. Darren has been outstanding in replacing plumbing, installing a new furnace, replacing vents and duct work, and a installing a new hot water heater...”

AC System Repair

The failure of an air conditioner can be caused by a variety of factors, including a broken compressor, worn-out electrical contacts, or even an issue with the thermostat. When your air conditioner refuses to turn on, it’s time to call in the pros.

If your air conditioner is not functioning properly, give me a call and I will visit your home and diagnose the problem. If a repair is the best course of action for you, I will ensure that it is completed promptly and correctly. You can rely on me to get your air conditioner back up and running as soon as possible if it breaks down. Below are listed a couple of signs that you need ac repair.
A hand with tool used to repair the air conditioning unit on the wall of a house

AC is making an odd noise

Repair is necessary if your air conditioner makes squealing or squealing noises, especially when it first starts up. If your AC is making an odd noise then it’s time to give me a call at (415) 897-4015

AC turning on and off

Short cycling occurs when your AC repeatedly turns on and off for a few seconds or minutes at a time. An AC that alternates between on and off states is not just inconvenient; it is also a warning indication that something is wrong.

AC blows warm air

When your AC is turned on, does it blow warm air? It does not take an HVAC specialist to recognize that is incorrect. Your air conditioner is blowing warm air because the fan is operating but the cooling mechanism is malfunctioning.
An expert installing an air conditioning unit in a house

AC System Installation

It is not a good idea to wait for your air conditioner to break before replacing it. A failed system will have a detrimental effect on comfort and indoor air quality. Correct installation of an air conditioner is critical. If it is not properly connected, your air conditioner will not provide adequate cooling and will not perform efficiently and it may also endanger your safety and health.

I will come to your home to determine which air conditioner will work best for you. My main goal is to make sure that your job is properly completed and you get what you need. We will work together to consider your budget, preferences, and other important factors affecting your comfort and the comfort of your home.

AC System Replacement

Purchasing a new air conditioner can be stressful. Your air conditioner should last at least ten years. Making the right choice on such a major purchase can give anyone goosebumps. My mission is to educate my customers. I want to ensure that you have complete confidence that you picked the ideal air conditioner for your home. That is why, in my opinion, each and every air conditioner installation should begin with you, the homeowner.

Each AC replacement consultation begins with a straightforward discussion of your requirements. If your current air conditioner is not functioning properly, then you need an economical replacement as soon as possible. Get in touch and I will give you a quote for the replacement of your old air conditioning system.
A hand holding an air conditioning remote control to regulate the temperature
A hand wearing latex gloves holding an air conditioning filter during the process of maintenance

AC System Maintenance

AC maintenance will assist you in lowering your summer cooling costs. Everything must be thoroughly checked during the maintenance visit, including the air conditioner’s vital components. That way you will be aware if there are any problems with your AC system. When your system is working properly, you will be able to enjoy uninterrupted quiet time in your own residence.

Replacing unclean air filters and ensuring that all safety systems are functioning properly is also critical. My goal is for my customers to have complete trust in their air conditioning systems.

Get a FREE Estimate

Call (415) 897-4015 or fill out the form below and I will provide you with a FREE estimate so that you are aware of your costs in advance regardless of the type of work required.

Plumbing Services

A neglected plumbing system can result in a slew of complications for homeowners. Corroded pipes, broken sinks, pipe leaks, and uncontrolled root development can all have unpleasant effects in the future. When plumbing maintenance and repairs are prioritized, water damage, electrical risks, poisonous mold development, and other frequent problems can be avoided.

Give me a call at (415) 897-4015 and I will arrive at your house equipped with all of the specialist tools and equipment necessary to check, diagnose, and fix your plumbing problems.
A professional plumber working on the under sink pipes with his handy tools

What Sets Me Apart

Since the beginning, I had a clear vision of what I wanted this company to be. I was unhappy with the way other companies treated their customers, and I wanted to see that change. Providing the greatest service possible while highlighting the importance of being honest and concise with consumers was my primary goal.


As a business owner, I make it a priority for myself to meet and exceed the expectations of each and every client regardless of what their needs are.


I never take your trust or satisfaction for granted, and I will do everything in my power to keep it by treating you with respect and dignity at all times.


I make an effort to listen carefully to what each customer has to say and handle their problems in an open and respectful manner.

Upfront Pricing

As a result of my upfront pricing, you’ll always know what you’re paying. I do not use high-pressure sales tactics or price gimmicks to get your money.

Reach Out To Me

Reach out to me by calling or filling out the form below and I will be calling you to talk about your project as soon as I can.

Contact Information

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Get in Touch

Give me a call or fill out the form below and I will call you back as soon as possible.