Top 10 HVAC Companies in Diamond Bar, CA

Porch Pro Headshot Power Pro Plumbing Heating & Air
HVAC Contractors
Serves Diamond Bar, California
We're a service provider for all your plumbing, heating, & cooling needs. We do more than just toilets, water heaters, and sinks. Our experienced and committed employees, top quality brands, professional service for your home, wide range of services, and state of the art technology all combine to me...Read more about Power Pro Plumbing Heating & Air
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We're a service provider for all your plumbing, heating, & cooling needs. We do more than just toilets, water heaters, and sinks. Our experienced and committed employees, top quality brands, professional service for your home, wide range of services, and state of the art technology all combine to me...Read more about Power Pro Plumbing Heating & Air
Porch Pro Headshot GC Heating & Cooling Inc.
HVAC Contractors
Serves Diamond Bar, California
GC Heating & Cooling is dynamic service oriented establishment which invites you to view our site to fulfill your valuation for your heating and cooling needs. Since our first day of service our goal has been to focus on customer's comfort and value to insure that they get professional services at a...Read more about GC Heating & Cooling Inc.
GC Heating & Cooling is dynamic service oriented establishment which invites you to view our site to fulfill your valuation for your heating and cooling needs. Since our first day of service our goal has been to focus on customer's comfort and value to insure that they get professional services at a...Read more about GC Heating & Cooling Inc.
Porch Pro Headshot Econo Air
HVAC Contractors
Serves Diamond Bar, California
(1,663)
Since 1982, Econo Air has provided heating and air conditioning services and equipment throughout Los Angeles, Orange County, and Riverside County. As one of Southern California's largest custom design install companies, we are committed to the quality of our work and the performance of our products...Read more about Econo Air
Since 1982, Econo Air has provided heating and air conditioning services and equipment throughout Los Angeles, Orange County, and Riverside County. As one of Southern California's largest custom design install companies, we are committed to the quality of our work and the performance of our products...Read more about Econo Air
Porch Pro Headshot The Right Choice
HVAC Contractors
Serves Diamond Bar, California
(681)
The Right Choice Heating and Air has provided services to homeowners, landlords, and business owners for many years. Our company is devoted to all matters related to heating, ventilation, and air conditioning. We provide thorough and professional assistance to ensure that all of our clients are sati...Read more about The Right Choice
The Right Choice Heating and Air has provided services to homeowners, landlords, and business owners for many years. Our company is devoted to all matters related to heating, ventilation, and air conditioning. We provide thorough and professional assistance to ensure that all of our clients are sati...Read more about The Right Choice
Porch Pro Headshot Guaranteed Quality Heating and Air
HVAC Contractors
Serves Diamond Bar, California
(686)
We provide heating and air conditioning solutions at the best prices for all of Orange County. We are an Award Winning Amana / Goodman Dealer. We are also Goodman's #1 Orange County volume dealer. We provide AC Repair & AC Replacement and Furnace Repair & Furnace Replacement for all of Costa Mes...Read more about Guaranteed Quality Heating and Air
We provide heating and air conditioning solutions at the best prices for all of Orange County. We are an Award Winning Amana / Goodman Dealer. We are also Goodman's #1 Orange County volume dealer. We provide AC Repair & AC Replacement and Furnace Repair & Furnace Replacement for all of Costa Mes...Read more about Guaranteed Quality Heating and Air
Porch Pro Headshot NUFLO DRYER VENT CLEANING
HVAC Contractors
Serves Diamond Bar, California
(442)
Dryer Vent Specialists Licensed, Bonded, Insured. Cleanings, Installations, Repairs, Parts & Supplies. Please call us today for your free quote! 714-231-4326
Dryer Vent Specialists Licensed, Bonded, Insured. Cleanings, Installations, Repairs, Parts & Supplies. Please call us today for your free quote! 714-231-4326
Porch Pro Headshot CWP Heating & Air, Inc.
HVAC Contractors
Serves Diamond Bar, California
(159)
C.W.P. Heating and Air's number one goal is to supply local residents and businesses with the highest quality HVAC service available. Whether it be a simple furnace repair, or a large A/C installation, our staff and technicians are trained to meet and exceed your expectations. Because we value custo...Read more about CWP Heating & Air, Inc.
C.W.P. Heating and Air's number one goal is to supply local residents and businesses with the highest quality HVAC service available. Whether it be a simple furnace repair, or a large A/C installation, our staff and technicians are trained to meet and exceed your expectations. Because we value custo...Read more about CWP Heating & Air, Inc.
Porch Pro Headshot California Cool Breeze
HVAC Contractors
Serves Diamond Bar, California
(55)
"I live in illinois but own a rental home in Moreno valley. Chris has handled my Ac issues for several years. I love that I have someone I trust. Especially when the repairs and work he is doing, and what I'm praying for, aren't things I can just go out and see. Honest guy, fair prices, quality wor...Read more about California Cool Breeze
"I live in illinois but own a rental home in Moreno valley. Chris has handled my Ac issues for several years. I love that I have someone I trust. Especially when the repairs and work he is doing, and what I'm praying for, aren't things I can just go out and see. Honest guy, fair prices, quality wor...Read more about California Cool Breeze
Porch Pro Headshot CHHS Inc
HVAC Contractors
Serves Diamond Bar, California
(56)
"Clear Horizon Home Solutions and the team who was managed and supervised by Roye just finished remodeling the master bathroom remodeling and we are pleased and happy with the end results of the new bathroom. We hired Roye and his company before on our kitchen remodeling and we were very happy then...Read more about CHHS Inc
"Clear Horizon Home Solutions and the team who was managed and supervised by Roye just finished remodeling the master bathroom remodeling and we are pleased and happy with the end results of the new bathroom. We hired Roye and his company before on our kitchen remodeling and we were very happy then...Read more about CHHS Inc
Porch Pro Headshot Fisher Heating & Air Conditioning Inc
HVAC Contractors
Serves Diamond Bar, California
(23)
"I have been using Fisher Air for many years and found them to be trustworthy and reasonable. The servicemen are knowledgeable and wear booties to keep my house clean when they are working. I would highly recommend them."
"I have been using Fisher Air for many years and found them to be trustworthy and reasonable. The servicemen are knowledgeable and wear booties to keep my house clean when they are working. I would highly recommend them."

Top questions to ask before hiring an hvac company

What type of insurance do you have? Heating, ventilation and air conditioning (HVAC) professionals work on a variety of mechanical areas of the home. You'll want to ask specific questions regarding professional training and licensing, as well as what types of insurance they have (for example, mold, air pollution or worker's compensation). It's fair to ask for the dollar amounts they are covered and a quality professional will show you verification of coverage.

HVAC professionals attend to a home's thermal needs as well as air quality. Because of the technical aspects of HVAC work, find out the scope of work your professional can perform. You may only need your heating unit serviced however, if this professional also specializes in energy efficiency, mold assessment, or offer ways for you to save on energy costs, you may want to hire them for future projects. Because some equipment is gas-powered, your professional should be able to answer questions about installing gas lines and permitting.

Ask about guarantees on labor or warranties on parts for your HVAC project. It's common to have a time limitation on parts and equipment. Save any paperwork related to your project so you can refer back to instruction manuals or serial numbers.

When working with a heating and cooling professional, ask if their company offers pricing incentives to encourage you to hire them on a regular basis. It's common to have your equipment inspected and serviced at least once a year. Your HVAC company may also offer special pricing on filters, ventilation cleaning or energy assessments.

Regardless of the scope of your project, find out what you need to do to prepare your home for their visit. For example, the HVAC professional will need access to the areas in question and may need access to other mechanical or ventilation points. Make sure pets and children are kept out of the way. Ask if your project will involve removing dry wall or making any other structural changes – you may need to hire a professional drywall contractor to patch up HVAC work. If you are adding a unit that may contribute to carbon monoxide within the home, find out if you need to purchase a carbon monoxide detector.

Recent reviews for Diamond Bar HVAC Contractors

39881

On Thursday I requested assistance with my Water Heater. The guy came out and looked at my pilot light and said it was out. He charged me $90 to assess the situation and then said he re-lit the pilot light and all I needed to do was wait 30 minutes to a...

- Michael Carpenter
84460

Was very pleased with the work being done.Technician was very courteous and helpful.I will use All Seasons Temperature again.Thank you for your great service.

- Lucy Martinez
84458

All Seasons Temperature conducted business, in a very honest and professional way. The rates were fair prices and we're often way cheaper than other companies had quoted me for the same job. All season's temp, completed their work in a timely manner, and ...

- Sam Pham
22572

Chris did a great job for me. He showed up looking professional, knew what he was talking about and his work was excellent. Would recommend him to anyone!

- Mike Stickley
23674

Experience counts and when it comes to experience Chris cant be beat. Add to that the best customer service out there you just cant go wrong. Had Cool Breeze install my system new from the ground up. It has performed flawless and perfectly matched to my n...

- Robert Herkelrath
22746

I have done a lot of work with this company, they are among the best. Chris is very professional and always willing to answer any questions you may have.

- Ricky Felix
22976

I'm very please from his work.. I perches old house and I asked from Christofer to give me an estimate for a new system and he explained to me about the high energy efficiency system. We're very happy from the low electric bill and the fair price.

- Gil Mizrahi
22575

Chris is a true professional and extremely talented in his trade.

- Michael Guinn
176618

We had a new HVAC system installed and discovered the ducts were extremely dirty from a recent remodeling project. Before they could run the system we needed someone to come out right away to clean the ducts.

- Paul J
180146

This company has been amazing and I look forward to continue working with them for my HVAC needs. Thank you!

- Robin Clark
173999

My dryer was becoming a fire hazard, and as a parent I was beginning to worry about the safety of my family. I called up this Dryer Vent Cleaning,hvac system and they took care of my dryer vent efficiently. I’m more than pleased with their service.

- Paulson Z
173022

Service techs were very professional and did a great job cleaning . I would definitely recommend duct cleaning service based on their professionalism.They did a great job

- Shirlon Z

Everything You Need to Know About Diamond Bar HVAC Companies

How do I know that I found the right HVAC Contractor in Diamond Bar for my hvac project?

Finding the right hvac contractor for your project can be stressful.... when you don't search with Porch. We've pulled together everything you need to know about HVAC in Diamond Bar so you can have some peace of mind before starting your project.

Here’s what you need to know to choose the right hvac contractor in Diamond Bar:

  • Are they properly licensed? Diamond Bar has 18 licensed HVAC Contractors Pros.
  • Are they BBB accredited? 5 pros in Diamond Bar are.
  • Check if they are they BBB rated: 20 are A-rated in Diamond Bar.
  • Is the quality worth the price? Make sure to find the hvac contractor that can deliver the quality you're looking for, without going way over your budget. Don't forget that every job is going to be different.
  • Speak with them over the phone: Contact multiple hvac contractors pros to see if you’re on the same page when it comes to your project.

Will HVAC work in Diamond Bar require permits, inspections, special licenses, etc.?

Whether you’re hvac contractor job is in Diamond Bar or any other city, you're going to want to do a bit of research before hiring hvac contractors. Even small jobs may have certain regulations around them. Often, the hvac contractor performing the work will have any required permits, inspections, etc. under control, but not always. Short answer: Research yourself and double check with the hvac folks that everything is in order.

How many hvac contractors does Diamond Bar have?

There are around 50 companies throughout Diamond Bar to help you with your next hvac job.

  • 20 of them have an A or A+ rating from Better Business Bureau.

All HVAC Companies in Diamond Bar, CA

Porch Pro Headshot B and N Heating and Air
HVAC Contractors
Serves Diamond Bar, California
(11)
We are B&N Heating & Air. We are one of the leading companies in the industry that does heating, ventilation, air conditioning repair and maintenance. We are a team of highly-skilled technicians that have been trained well in order to repair and maintain your home and office heating and cooling syst...Read more about B and N Heating and Air
We are B&N Heating & Air. We are one of the leading companies in the industry that does heating, ventilation, air conditioning repair and maintenance. We are a team of highly-skilled technicians that have been trained well in order to repair and maintain your home and office heating and cooling syst...Read more about B and N Heating and Air
Porch Pro Headshot A Plus General Contractors, Inc.
HVAC Contractors
Serves Diamond Bar, California
(28)
We've grown a lot since we opened our doors 15 years ago. Today, we have 25 skilled technicians able to meet all your comfort needs - every season of the year. We've become one of the best and most reputable air conditioning companies in Southern California. And our Trane Comfort Specialist™ Dealer ...Read more about A Plus General Contractors, Inc.
We've grown a lot since we opened our doors 15 years ago. Today, we have 25 skilled technicians able to meet all your comfort needs - every season of the year. We've become one of the best and most reputable air conditioning companies in Southern California. And our Trane Comfort Specialist™ Dealer ...Read more about A Plus General Contractors, Inc.
Porch Pro Headshot 20th Century Air Inc.
HVAC Contractors
Serves Diamond Bar, California
(16)
20th Century Air, Inc. - Heating and Air Conditioning in Orange County "21st Century Products with 20th Century Service" We are a family owned and operated company specializing in heating and air conditioning installation, replacements, maintenance, and repair in Orange, LA, and Riverside Counties...Read more about 20th Century Air Inc.
20th Century Air, Inc. - Heating and Air Conditioning in Orange County "21st Century Products with 20th Century Service" We are a family owned and operated company specializing in heating and air conditioning installation, replacements, maintenance, and repair in Orange, LA, and Riverside Counties...Read more about 20th Century Air Inc.
Porch Pro Headshot Best Remodeling & Development
HVAC Contractors
Serves Diamond Bar, California
(14)
Best Remodeling & Development, Inc. is a Los Angeles based home remodeling company that specializes in Window Replacement, Artificial Turf,Insulation, Exterior Paint, Kitchen Remodeling, HVAC, Landscaping, Roofing and whole-home remodeling. We are a team of dedicated designers, project managers and...Read more about Best Remodeling & Development
Best Remodeling & Development, Inc. is a Los Angeles based home remodeling company that specializes in Window Replacement, Artificial Turf,Insulation, Exterior Paint, Kitchen Remodeling, HVAC, Landscaping, Roofing and whole-home remodeling. We are a team of dedicated designers, project managers and...Read more about Best Remodeling & Development
Porch Pro Headshot Stewart HVAC Repair
HVAC Contractors
Serves Diamond Bar, California
(11)
"They were always accessible for my questions or concerns, was helpful getting safety to my house, and professional advice was quite helpful. I definitely recommend this company and would call them again."
"They were always accessible for my questions or concerns, was helpful getting safety to my house, and professional advice was quite helpful. I definitely recommend this company and would call them again."
Porch Pro Headshot All Seasons Temperature
HVAC Contractors
Serves Diamond Bar, California
(17)
Free Estimate with or without repair (means no charge to troubleshoot your Air Conditioning and Heating equipment) .----------------------------------------------------------- A lot of Companies out there will try to replace your whole Heating and Air Conditioning system when not needed rather than...Read more about All Seasons Temperature
Free Estimate with or without repair (means no charge to troubleshoot your Air Conditioning and Heating equipment) .----------------------------------------------------------- A lot of Companies out there will try to replace your whole Heating and Air Conditioning system when not needed rather than...Read more about All Seasons Temperature
Porch Pro Headshot Supreme Cooling Heating and Air Conditioning
HVAC Contractors
Serves Diamond Bar, California
(4)
"They were phenomenal. Supreme came through and figured out what the problem and repaired it when 4 ither companjes couldnt do the job. And they showed up in a timely matter with a 30 min prior to show up courtesy call.i would highly recommend supreme to all my family and friends."
"They were phenomenal. Supreme came through and figured out what the problem and repaired it when 4 ither companjes couldnt do the job. And they showed up in a timely matter with a 30 min prior to show up courtesy call.i would highly recommend supreme to all my family and friends."
Porch Pro Headshot Semper Fi Air
HVAC Contractors
Serves Diamond Bar, California
(58)
We know how important your home is to you and we want it to be as comfortable as possible. We live by the Marine Corps ethos, therefore if we're not 15 minutes early, we're late. Punctuality is a trait you should come to expect from us. Another thing you can count on from us is the fact that we will...Read more about Semper Fi Air
We know how important your home is to you and we want it to be as comfortable as possible. We live by the Marine Corps ethos, therefore if we're not 15 minutes early, we're late. Punctuality is a trait you should come to expect from us. Another thing you can count on from us is the fact that we will...Read more about Semper Fi Air
Porch Pro Headshot Watson Construction
HVAC Contractors
Serves Diamond Bar, California
(31)
At Watson Construction we pride ourselves in offering quality products and exceptional service at affordable prices. Many of our clients come to us via referral or even repeat customers. You will be extremely pleased with our customer service and respect for your home. TSG Construction is founded ...Read more about Watson Construction
At Watson Construction we pride ourselves in offering quality products and exceptional service at affordable prices. Many of our clients come to us via referral or even repeat customers. You will be extremely pleased with our customer service and respect for your home. TSG Construction is founded ...Read more about Watson Construction
Porch Pro Headshot Goldstar Home Services
HVAC Contractors
Serves Diamond Bar, California
(1)
"Extremely knowledgable and especially accommodating to our schedule! They contacted me within an hour and had someone out to fix our A/C unit that day when my husband got home. We have a new baby so he pushed us to the front of the line to make sure we would get taken care of that day. I can't than...Read more about Goldstar Home Services
"Extremely knowledgable and especially accommodating to our schedule! They contacted me within an hour and had someone out to fix our A/C unit that day when my husband got home. We have a new baby so he pushed us to the front of the line to make sure we would get taken care of that day. I can't than...Read more about Goldstar Home Services
Porch Pro Headshot Ramco Plumbing, Heating & Air
HVAC Contractors
Serves Diamond Bar, California
When a plumbing problem arises, don’t sweat it – you only need to pick up the phone and call Ramco Plumbing! Offering fast, friendly, five-star plumbing services plus water damage restoration services, Ramco Plumbing is the team you will want on your side. Their plumbers are dedicated to getting eve...Read more about Ramco Plumbing, Heating & Air
When a plumbing problem arises, don’t sweat it – you only need to pick up the phone and call Ramco Plumbing! Offering fast, friendly, five-star plumbing services plus water damage restoration services, Ramco Plumbing is the team you will want on your side. Their plumbers are dedicated to getting eve...Read more about Ramco Plumbing, Heating & Air
Porch Pro Headshot Xpress Heating & Air
HVAC Contractors
Serves Diamond Bar, California
We pride our company on reliability, great communication, integrity and quality work. We are experts in our HVAC work and will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.
We pride our company on reliability, great communication, integrity and quality work. We are experts in our HVAC work and will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.
Porch Pro Headshot S & P AIR CONDITIONING AND HEATING
HVAC Contractors
Serves Diamond Bar, California
Hi, I am calling from S& P air conditioning . I know you have some problems with the air conditioner or refrigeration . Maybe we can help you with that issue , thank you very much.
Hi, I am calling from S& P air conditioning . I know you have some problems with the air conditioner or refrigeration . Maybe we can help you with that issue , thank you very much.

Latest projects near Diamond Bar

Recent projects booked on Porch
Pomona 91766
Thermostat Replacement and Repair
Comments from Customer
just reolace
Chino Hills 91709
HVAC Inspection
Start Date
Within 48 hours
Purpose
Purchasing property
Inspection type
Heating and cooling
Property type
Single family residence
Property size
2,001-2,500 sq ft
Property age
21-30 years
Foundation type
Slab on ground
Relationship to property
Agent
Occupied
No
Utilities turned on
Yes
Specific services
None of the above