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Custom HVAC System Design

Are you searching for a professional & competent HVAC company in Orange County to design and install an HVAC system tailored to your home and comfort needs? Look no further than Haven Air Conditioning! We have the background & expertise to handle most custom HVAC designs in Orange County. From design to commissioning and ongoing service & maintenance, our Haven team ensure you enjoy complete comfort at all times.

Summer, fall, winter or spring – just look for the friendly penguin, and you’ve got the right team on the job!

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483+ Reviews

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25+

Years In Business

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Projects Completed

5K+

Satisfied Clients

HVAC Residential

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Top-Notch Custom HVAC System Design Services in Your Neighborhood

Haven Air Conditioning provides customized HVAC system design services of the highest standards throughout Orange County and most surrounding areas.

What we can do for you:

Explore system & design options
Take your HVAC project from blueprints to commissioning
No blueprints – No problem! We can custom design your comfort system without existing blueprints.
Custom duct design & installation
Specialty diffusers & grills (linear, etc.)
Integrations (humidification, dehumidification, ERV/HRV integration, etc.)
Advanced IAQ HVAC integrations
Design & installation of advanced comfort zoning systems
High-efficiency systems (energy management)
Permitting & title 24 services
Post-construction maintenance service is available

Since 1998, we have designed thousands of unique HVAC systems to cover our clients’ cooling and heating needs at competitive rates. There are no shortcuts when you choose Haven Air Conditioning!

Our installation teams & service technicians are factory and in-house trained on an ongoing basis to keep up to date with the latest HVAC design and installation techniques and skills. You can rest assured that your home’s comfort system is in the best hands possible.

Become a HAVEN CARE or CORE member to get extensive service discounts, exempt yourself from warranty processing fees and enjoy many more benefits.

Get A Quote

Customize Your HVAC System in Orange County With Haven’s Expertise

When you see the friendly penguin, you know that your indoor comfort is in expert hands.

Our full range of HVAC system services include:

Complete Range of Comfort System Installations
Replacements and original installations. We also offer great green Heat-Pump alternative, perfect for solar installations.
Heat Pump/Furnace Service & Repairs
The most reliable, efficient and cost-effective heat pump and furnace services and repairs in Southern California.
Exceptional Warranty packages
Excellent extended labor warranties in addition to the manufacturer parts warranty will give you peace of mind. Your investment is protected - No matter what.
Ductless Heating Systems
Great for additions, converted garages, home offices and many more indoor applications.
Zoning Systems
Precise temperature control in your entire home.

Integrated Central IAQ Products
Most our standard installations include hospital-grade MERV16 air filtration.
Custom Registers & Grills
We offer a complete line of architectural grills and diffusers, such as linear open, linear bar, linear slot, and more.
Duct Assessment
With our advanced diagnostic tools we can determine how much energy is wasted, which components of your duct system are compromised and how we can improve upon it.
Seal Leaky Air Ducts
Sealing leaky air ducts improves system performance and can save you loads of money.
Additional Ducts
Sometimes, the existing duct to a room is just not enough to make the room comfortable. We can add additional ducts to improve your comfort and system’s performance.
Air Flow Balance Dampers
By adding air flow volume dampers we can greatly reduce hot/cold spots in your home. It will feel like a new comfort system.
Custom HVAC Design & Installation Services
We have the background and expertise to think outside the box.

Integrated Central IAQ Products
Most our standard installations include hospital-grade MERV16 air filtration.
Custom Registers & Grills
We offer a complete line of architectural grills and diffusers, such as linear open, linear bar, linear slot, and more.
Duct Assessment
With our advanced diagnostic tools we can determine how much energy is wasted, which components of your duct system are compromised and how we can improve upon it.
Seal Leaky Air Ducts
Sealing leaky air ducts improves system performance and can save you loads of money.
Additional Ducts
Sometimes, the existing duct to a room is just not enough to make the room comfortable. We can add additional ducts to improve your comfort and system’s performance.
Air Flow Balance Dampers
By adding air flow volume dampers we can greatly reduce hot/cold spots in your home. It will feel like a new comfort system.
Custom HVAC Design & Installation
We have the background and expertise to think outside the box.

Your Trusted HVAC Design Experts in Orange County, CA

If you’re not just looking for HVAC design services but also an outstanding 5-Star client experience, then look no further than Haven Air Conditioning!

We have been designing, installing, servicing, repairing & maintaining HVAC systems for homeowners in Orange Country for over 20 years. It is hard to beat our HVAC expertise and our customer communication skills truly set us apart from the competition.

With Haven Air Conditioning, you know that you will always get:

Unwavering attention to detail and a customer-first approach.
Superior HVAC services and outstanding results every time.
A trustful relationship that does not end after the initial transaction but continues for many years.
HVAC specialists that are always here to answer your questions and concerns.
Decades of experience that allow us to know the “little things” that can go wrong and how to avoid them.

Join our thousands of satisfied clients and become part of the Haven Comfort Family today!

We are just a call away! Get a quote today…

… and let us do all the heavy lifting for you so you can feel comfortable and take on your day! Our seasoned, highly trained & certified service technicians are committed to handling all your heating, A/C and indoor air quality projects in Orange County, California, fast & efficiently.

OUR CLIENTS HAVE SPOKEN

And they are very happy!

Why? Because we are super responsive, show up on time, treat your property like it is ours, and go the extra mile to achieve the outcome you are looking for. Are you ready to become part of our Haven Family? Give us a call today and see why so many of your neighbors rave about the 5-Star service Haven Air conditioning delivers!

Edgar and Sean came to check on the system we put in about 7 months ago. They always go out of their way to make sure we’re happy and that everything is still working and up to speed. Very professional and helpful. My new unit came with a service that has Haven come out every 6 months or so to check the unit. Great company

ProSpector79 Ramos
07/11/2022
Very professional and responsive. My heater was not working properly and Haven was able to send out Cody the same day within 2 hours. Cody is very professional, polite and very knowledgable. Fixed the issue very quickly and the charge was minimal. Would highly recommend Haven.

Niner Nation
07/11/2022
Haven installed our HVAC system a few years ago and has done regular maintenance visits since then. Their team is friendly, professional, and very reasonably priced. Best of all, they do all of their scheduling via text. Five stars alone for no unnecessary phone calls. ?

Amy McCown
27/09/2022
Complete two system install. On time, clean, professional. Great communication from the whole team, start to finish. Finished on time. Financing options

Jeff Baptie
27/09/2022
Very good would recommend

Bud Schultz
26/09/2022
Excellent technician. Explained everything so that I could understand. Personable! I would hire Cody anytime. It was a pleasure!

R. L. Hodges
19/09/2022
Cody was on time, very professional, and friendly. I will definitely use Haven for my future maintenance

lisa breit
19/09/2022
Our furnace was down, so no A/C and no heat. Even before our furnace was down, our A/C stopped working. We called Mighty Ducts/Haven and they were able to send Cody to our home. Cody was very professional and friendly. He explained to us what happened and provided us with a repair estimate. He was able to repair our furnace, including getting our A/C up and running the same day. He also resolved other issues we’ve had with the vents. He is efficient and is a very hard worker. We would recommend this company to our friends and family. We really appreciate your professionalism and hard work, thank you Cody!

Your Grace
19/09/2022
100% Grade A service and reliability from the the customer service, repair consult, sales and installation crew. Our old unit was 23 years old and costing a fortune to run (even with solar energy). I did my due diligence and searched for a solid company with great reviews and reputation and Haven Air is the best. We live in Ontario and they are based in Anaheim. It was a big job for our 3200 sf home, taking 2 full days. They were never late, cleaned up thoroughly every time, very courteous employees, knowledgeable and professional every step. Andreas Laux was my lead sales guy and man on the job. No pressure to purchase anything and was thorough in his explanation of the different units available for our size home. He followed up with me every day and kept me informed. I was very comfortable with him and highly recommend this company for either repair or a new A/C or furnace. I dont do social media but i wanted anyone looking for help with their system to know you can trust these guys to do good honest work for you and for the years to follow maintaining the unit for you. So glad I found them ☺️ Lisa D

lisa dunham
19/09/2022
Responsive, clean and thorough.

John Jones
12/09/2022

Edgar and Sean came to check on the system we put in about 7 months ago. They always go out of their way to make sure we’re happy and that everything is still working and up to speed. Very professional and helpful. My new unit came with a service that has Haven come out every 6 months or so to check the unit. Great company

ProSpector79 Ramos
07/11/2022
Very professional and responsive. My heater was not working properly and Haven was able to send out Cody the same day within 2 hours. Cody is very professional, polite and very knowledgable. Fixed the issue very quickly and the charge was minimal. Would highly recommend Haven.

Niner Nation
07/11/2022
Haven installed our HVAC system a few years ago and has done regular maintenance visits since then. Their team is friendly, professional, and very reasonably priced. Best of all, they do all of their scheduling via text. Five stars alone for no unnecessary phone calls. ?

Amy McCown
27/09/2022
Complete two system install. On time, clean, professional. Great communication from the whole team, start to finish. Finished on time. Financing options

Jeff Baptie
27/09/2022
Very good would recommend

Bud Schultz
26/09/2022
Excellent technician. Explained everything so that I could understand. Personable! I would hire Cody anytime. It was a pleasure!

R. L. Hodges
19/09/2022
Cody was on time, very professional, and friendly. I will definitely use Haven for my future maintenance

lisa breit
19/09/2022
Our furnace was down, so no A/C and no heat. Even before our furnace was down, our A/C stopped working. We called Mighty Ducts/Haven and they were able to send Cody to our home. Cody was very professional and friendly. He explained to us what happened and provided us with a repair estimate. He was able to repair our furnace, including getting our A/C up and running the same day. He also resolved other issues we’ve had with the vents. He is efficient and is a very hard worker. We would recommend this company to our friends and family. We really appreciate your professionalism and hard work, thank you Cody!

Your Grace
19/09/2022
100% Grade A service and reliability from the the customer service, repair consult, sales and installation crew. Our old unit was 23 years old and costing a fortune to run (even with solar energy). I did my due diligence and searched for a solid company with great reviews and reputation and Haven Air is the best. We live in Ontario and they are based in Anaheim. It was a big job for our 3200 sf home, taking 2 full days. They were never late, cleaned up thoroughly every time, very courteous employees, knowledgeable and professional every step. Andreas Laux was my lead sales guy and man on the job. No pressure to purchase anything and was thorough in his explanation of the different units available for our size home. He followed up with me every day and kept me informed. I was very comfortable with him and highly recommend this company for either repair or a new A/C or furnace. I dont do social media but i wanted anyone looking for help with their system to know you can trust these guys to do good honest work for you and for the years to follow maintaining the unit for you. So glad I found them ☺️ Lisa D

lisa dunham
19/09/2022
Responsive, clean and thorough.

John Jones
12/09/2022

GET 10% OFF ANY REPAIR

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We service & repair all major HVAC brands!

FREQUENTLY ASKED QUESTIONS

What we can do for you!

Why Haven Air Conditioning?

Haven Air Conditioning has a proven track record with thousands of successfully completed projects. Haven Air Conditioning has maintained a 5-Star reputation for over 20 years.

Call us at (714) 332 – 6302 for more information or to schedule an appointment to discuss your HVAC design project.

Why do custom HVAC projects cost more?

Custom HVAC projects require a larger investment for the following reasons:

Custom HVAC projects usually have more equipment integrations like zoning systems, humidifiers, advanced IAQ products, linear diffusers, etc.
Crew labor days – Custom HVAC installations require a dedicated project manager and have significantly more ‘crew labor days’ allocated to them in order to complete the projects.

Call us at (714) 332 – 6302 for more information.

How important is the brand of my HVAC equipment?

Clearly, quality equipment is an important factor, and that’s why Haven Air Conditioning only uses top brands.

However, the quality of the installation, driven by the expertise of the contractor and his team, is equally, if not more important!

Top-quality equipment and a top-quality contractor ensure a successful outcome.

Does my HVAC installation require permits?

Yes, all mechanical installations require building permits and Title 24 compliance in California. No exceptions. Stiff penalties apply to the homeowner and contractor.

Call Haven Air Conditioning and take the worry out of your project!

Which areas do you serve in Orange County, California?

Haven Air Conditioning serves all of Orange County and most cities in the surrounding areas.

Aliso Viejo • Anaheim • Brea • Buena Park • Costa Mesa • Cypress • Dana Point • Fountain Valley • Fullerton • Garden Grove • Huntington Beach • Irvine • La Habra • La Palma • Laguna Beach • Laguna Hills • Laguna Niguel • Laguna Woods • Lake Forest • Los Alamitos • Mission Viejo • Newport Beach • Orange • Placentia • Rancho Santa Margarita • San Clemente • San Juan Capistrano • Santa Ana • Seal Beach • Stanton • Tustin • Villa Park • Westminster • Yorba Linda

Call us at (714) 332 – 6302 and have your furnace issues fixed efficiently and cost-effectively!