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Top-Rated Air conditioning pros in Nicolaus - Updated Nov 2026

Avatar for Ecology Air Innovations
Ecology Air Innovations
4.7(
57
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Nicolaus, CA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Brad was terrific. He came and did an A/C tune up which cost $29.00 as well as a diagnostic test which cost $49.00 to determine why the AC wasn't blowing cold air. He discovered the capacitor was blown. He replaced the capacitor which cost $189.00 and the AC started blowing cold air."
Old AC location in front of gate and next to pool equipment. Client opted to extend the lineset and electrical saving a lot of money instead of running new power and lines.
Xl18i 2 stage 3 ton AC
Moved the AC down the wall about 15 feet for better access thru side yard gates. Trane XL18i 2 stage AC
Additional Photos
Additional Photos

+13

26 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Julian Heat and Air
Julian Heat and Air
4.8(
19
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Nicolaus, CA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"The installation went great, and we love that our new system is way more energy efficient and our home is more comfortable than it was before. I'd recommend Good Value Heating & Air to anyone who needs work done on there heating and air conditioning system."
HVAC Installation Sacramento, CA
Installing a ductless mini split HVAC system for efficient heating and cooling in a modern home. Perfect solution for additions, garages, and rooms without ductwork.
Upgrading attic insulation to improve energy efficiency and HVAC system performance. We help homeowners reduce energy bills and stay comfortable year-round.
Brand-new high-efficiency furnace being installed in a Rocklin home. Our team specializes in expert heating system installation, repairs, and seasonal maintenance.
Upgrading attic insulation to improve energy efficiency and HVAC system performance. We help homeowners reduce energy bills and stay comfortable year-round.

+5

Response time1 day
Response rate100%
2 neighbors recently requested a quote
Avatar for Clear Efficiency
Clear Efficiency
5.0(
57
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral Air Cleaner - Install or Replace

Serving Nicolaus, CA and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Jesse made the process from start to finish a breeze. He communicated with us every step of the way so we knew exactly what to expect. On the install date, he was there with his crew to help facilitate the process and answer any questions we might have for him. His crew were professional, polite and did an excellent job! We plan on using this company when we update our Whole House Fan, too. I’ve recommended them to everyone who will listen."
SunPower Equinox Solar System
SunPower Equinox Solar System
SunPower Equinox Solar System
SunPower Equinox Solar System
SunPower Equinox Solar System

+14

Response time20 mins
Response rate100%
19 neighbors recently requested a quote
Avatar for All HVAC Services Inc.
All HVAC Services Inc.
5.0(
4
)
Central A/C - Install

Serving Nicolaus, CA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"All HVAC Services is more than a company, they are a second generation family business you can trust. They installed two commercial units in one of my One Martial Arts locations. Their price was competitive and their work was excellent. The team of brothers went above and beyond all my expectations, earning my trust every step of the install. I would highly recommend and refer them to everyone looking for HVAC services."
Full hvac replacement
Full hvac replacement
Full hvac replacement
Response time8 hrs
Response rate100%
Recommended by75%of homeowners
Avatar for FOUR ROOTS AIR SOLUTIONS LLC
FOUR ROOTS AIR SOLUTIONS LLC
5.0(
5
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Nicolaus, CA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

Four Roots Air Solutions is a family-owned HVAC and refrigeration company based in Loomis, serving Sacramento, Placer County, and the surrounding foothills and valley communities. We design, install, and maintain heating and cooling systems for homes and businesses, including central air, heat pumps, ductless mini-splits, and commercial refrigeration.\n\nOur goal is simple: systems that keep you comfortable, cost less to run, and last longer. That starts with doing the job right the first time. We don’t sell jobs we can’t build, and we don’t build jobs we haven’t thought through.\n\nYou’ll get honest diagnostics, clear pricing, and straight answers about your options, even when the right answer is a repair instead of a replacement. With more than 13 years of field experience, we’re often called in to fix problem systems other contractors couldn’t solve.

HVAC
4 neighbors recently requested a quote
Avatar for FOUR ROOTS AIR SOLUTIONS LLC
FOUR ROOTS AIR SOLUTIONS LLC
5.0(
5
)
Ductless Mini-split A/C - Install or ReplaceCentral A/C - Install

Serving Nicolaus, CA and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

.
RUUD Furnace
Kitchen Mini Split
Commercial HVAC
New Build HVAC

+1

3 neighbors recently requested a quote
Avatar for The Plumbing Machines
The Plumbing Machines
5.0(
7
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Nicolaus, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Definitely my go to company when it comes to my Heating and Air Conditioner! With this heat and my unit going out they came in a fast and timely manner and got straight to work! They knew exactly what they were doing and fixed my AC. Very professional and courteous!! I will definitely recommend to anyone i know and will be calling them for any future issues!"
Water Heaters
Water Heaters
Water Heaters
Water Heaters
Additional Photos

+6

2 neighbors recently requested a quote
Recommended by66%of homeowners
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FAQs for air conditioning projects in Nicolaus, CA

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Nicolaus, CA homeowners’ guide to air conditioning services

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