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Avatar for Global Comfort Heating and Air
Global Comfort Heating and Air
4.8(
52
)

Serving Colma, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Global Comfort installed a full HVAC system in my home; 7 new runs for air, new AC unit, new furnace and a new Nest thermostat, all electrical needs. Rudy and his team are respectful, efficient, punctual, competitive in pricing. Rudy walked me through running the system for its first time and explained all the stuff for a brand new system in a house that never had AC. I'm very thankful for the work they did. Highly recommend because their customer service is top notch."
Team Global Comfort Truck
Carrier Heater Changeout
Duct Install securing runs
Duct Install securing runs
Carrier 95% Installation

+9

Response time50 mins
Response rate94%
4 neighbors recently requested a quote
Avatar for Duct Pros
Duct Pros
4.7(
68
)

Serving Colma, CA and surrounding areas

Approved

In business since 2015

Emergency services offered

Small jobs welcome

"Rasu was AMAZING! I had a very unusual clog in my dryer duct and he stayed and worked on it! He took the time to make sure my dryer was working correctly as well. He went above and beyond. I would recommend him over and over! Am using him for my air vents and chimney sweep services. Heâ s honest, fair, ckeaned up after the job was complete, polite and his price was extremely fair ."
SF-Clean Chimney Project
SF-Clean Chimney Project
SF-Clean Chimney Project
Chimney cleaning/sweep
SF-Clean Chimney Project

+14

Response time12 hrs
Response rate91%
1 neighbors recently requested a quote
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
719
)

Serving Colma, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"Albert Nahman PHC installed new AC and Furnace for my house. I like them for several reasons -- 1. At first Tom explained in detail what equipment I need and how they work, and gave me a reasonable and detailed quote at end of the visit. 2. They offer interest free finance. 3. I got free upgrade for furnace when the original quoted is not available. 4. Their installer did good job, and cleaned up afterward. I highly recommend this company."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
59 neighbors recently requested a quote
Avatar for Air Control Mechanical
Air Control Mechanical
4.9(
8
)

Serving Colma, CA and surrounding areas

Approved

In business since 2016

Free estimates

Offers commercial services

"I was so pleased with this company! Victor came out at 9:00 on a Wednesday night, determined that I needed a part for my AC, said he anticipated it should be in by Friday. What do you know...on Thursday at 6:00 p.m., I received a call saying a technician could install the part. By 7:00, voila, I had air conditioning!!! Jorge told me Victor absolutely impressed upon him that I needed AC...tonight. Many thanks for the prompt, friendly service and detailed explanations. Yes, I would wholeheartedly recommend this company of conscientious, responsive professionals!"
Response time10 hrs
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Silicon Valley Air Experts
Silicon Valley Air Experts
4.8(
57
)

Serving Colma, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"My job was cleaning of Air Ducts and dryer vent which is not on the drop down list provided. I spoke with several companies to see about quotes and scheduling. a clean out for my dryer vent before I had a new dryer installed. Silicon Valley Air Experts called me right away, listened to the job and provided a transparent initial assessment and cost estimate. While talking to them I also learned about cleaning all the air ducts, which I hadn't done in some time. They showed up on time, completed all of the work efficiently and cleaned up afterward. I plan to use them again in the future. It was a wonderful experience."
Air Duct Cleaning
Air Duct Cleaning
Air Duct Cleaning
Air Duct Cleaning
Air Duct Cleaning

+4

Response time11 hrs
43 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for New Millennium HVAC Cleaning Services
New Millennium HVAC Cleaning Services
5.0(
6
)

Serving Colma, CA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

New Millennium, is your premier choice for Air Ducts and Dryer Vents Cleaning. We have provided high quality work and friendly customer service for years. Call today!

Response time4 hrs
Response rate97%
2 neighbors recently requested a quote
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Air Conditioning questions, answered by experts

The top reason to purchase an HVAC maintenance contract is the fact that it ensures you are detecting problems before they turn into expensive fixes. Secondly, this type of contract provides priority service, which is nice if it’s peak busy season. Finally, an HVAC maintenance contract provides discounts on parts and labor for repairs, which can save you a good amount of money if your unit breaks.

If possible, avoid placing furniture in front of a return air vent. A blocked air vent can cause your HVAC system to use more energy, which in turn can lower the life span of your unit and raise your energy bill. Furniture can also trap hot or cold air, damaging your furniture or appliances. 

Professional duct installers suggest leaving between six and 12 inches of space in front of an air return vent. If you must place furniture in front of a return air vent, try to aim for putting furniture over a floor vent instead of in front of a wall vent, and avoid draping curtains over any vent system.

An HVAC unit, like a furnace, air conditioner, or heat pump, produces warm or hot air. The air ducts serve as the passages to help heat or cool air from the HVAC unit flow through the home. Air ducts are just one part of the overall HVAC system.

When an evaporator coil becomes faulty, it can result in various problems within your HVAC system. These problems could include reduced cooling or heating capabilities due to ice formation and obstructed airflow, along with increased energy consumption and higher bills. Additionally, a damaged coil may lead to refrigerant leaks, which are environmentally harmful and decrease overall system efficiency.

Ultimately, if not addressed right away, a bad evaporator coil can even lead to a complete failure of your HVAC system. That’s why timely repair or replacement is crucial to maintaining your family’s comfort and your HVAC’s efficiency.

If refrigerant levels are low, it can cause the evaporator coil to freeze up. Low freon causes a drop in pressure, which will make the coil too cold and cause moisture to freeze on the coil. Your system may be low on refrigerant because of a leak

Make sure to have maintenance performed twice a year, and contact your local HVAC technician if you suspect your system has low freon levels.

The Colma, CA homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.