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Find Air conditioning pros in Lancaster

Avatar for Precision Heating & Cooling
Precision Heating & Cooling
4.8(
45
)

Serving Lancaster, NY and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"Couldn't ask for better service or quality from start to finish. Have recommended Mike and company to my sister. Furnace and air conditioning units were installed in one day. There was nothing for us to clean up inside or outside when the job was done."
10 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Roy's Plumbing, Heating, Cooling & Electrical
Roy's Plumbing, Heating, Cooling & Electrical
4.4(
509
)

Serving Lancaster, NY and surrounding areas

Approved

In business since 1974

Free estimates

Emergency services offered

"Fabulous! Although a bit pricey, the electrician gave me straight up pricing and same young man performed the service as expected but above and beyond. Showed up a little earlier (which was fine because we were already ready for him) and cleaned up as he went. The wiring is straight and neat and he explained what he was doing as he went."
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+2

1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Premier Heat
Premier Heat
4.6(
199
)

Serving Lancaster, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Jacob is not only the Owner, he is a Great Teck. who knows what he is doing and his pricing is good, considering the cost for Carrier Furnace parts. Would highly recommend him to all who need Furnace/Air repairs! Excellent work, and responds very quickly in Emergency situations! 5 Star Rating is totally deserved!"
Dunkirk boiler
Installations
Installations
Rinnai Boiler - combination unit
Gas Manifold

+9

Response time50 mins
15 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Topline Heating & Air
Topline Heating & Air
5.0(
9
)

Serving Lancaster, NY and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"The technician, Andrew Prince, arrived on time, he was courteous and professional. The cleaning and maintenance of my oil furnace was thorough and performed in a timely manner. Will definitely hire again. Very happy with Andrew's service and knowledge."
Recommended by100%of homeowners
Avatar for Cellino Plumbing
Cellino Plumbing
4.4(
235
)

Serving Lancaster, NY and surrounding areas

Approved

In business since 1996

Emergency services offered

Credit card accepted

"We called Cellino because the first plumbing company that we called were scheduled to come back on Monday between 9 and 10am, they never showed up and never came back even after I called them (wnyplumbing).  We called Cellino, there were there the next day, were prompt and very thorough.  He figured out what the problem was (just a problem with a filter) wnyplumbing had said we were going to need a new hot water tank.  Ryan took his time, explained everything to me and then also left me with quotes in case we do decide to get a new hot water heater.  He explained the benefits of tank vs tankless especially with a filtering system that we have.  If we do get the tank I will definitely go with Cellino."
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+12

4 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Primetime Energy Services
Primetime Energy Services
4.5(
30
)

Serving Lancaster, NY and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"They called me a couple of days after I purchased the deal, even before I had a chance to call them to schedule. We made an appointment, they called before they arrived—on time—and did the work in less time than estimated. They were efficient, friendly but professional, showed me how to set and maintain the humidifier, AND they cleaned up after themselves. Very pleased with everything!"
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Insulation
Insulation

+9

8 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for T-Mark Plumbing, Heating, Cooling & Electric
T-Mark Plumbing, Heating, Cooling & Electric
4.5(
644
)

Serving Lancaster, NY and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"Went very well and I had a new furnace filter and asked if he would switch it for me which he did no job he said. Also they accepted the national fuel $50.00 rebate. So you just pay them fill out the form and get your $50. check in mail from national fuel. It was inexpensive and tmark still excepted their own coupon on top of the rebate. Want to call back for my central air unit in spring hopefully with a coupon."
Boiler Installed
2 Boilers Installed
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+10

9 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Touchdown Heating & Cooling
Touchdown Heating & Cooling
5.0(
10
)

Serving Lancaster, NY and surrounding areas

Approved

In business since 2025

Credit card accepted

Offers commercial services

Where comfort meets commitment! We’re your home team for reliable, high-quality heating and cooling service you can count on all year long. From keeping your home warm through winter to cooling things off when the heat hits, our crew brings skill, speed, and passion to every job. We don’t just fix systems, we deliver peace of mind, backed by a promise of quality, integrity, and true hometown care.

Photos
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+26

7 neighbors recently requested a quote
Avatar for Cellino Plumbing, Heating and Cooling
Cellino Plumbing, Heating and Cooling
4.0(
71
)

Serving Lancaster, NY and surrounding areas

Approved

In business since 1995

Emergency services offered

Small jobs welcome

"Cellino is awesome. They saved the day when my basement flooded in 2018. So when a few weeks ago my parents (both in their 80's) had plumbing problems, they called me, and as their POA, it was a no-brainer. Cellino. I called and made an appointment. The two techs assigned to the job, Nick Piracci and Joseph Neuhaus knocked it out the park. I expected no less based on the service I received two years ago. They were awesome, friendly, patient, and professional. Answered all my questions, explained everything and even provided answers to questions I wouldn't know to ask. My parents informed me of one issue, but it turned out to be far more and they were all addressed. Given all that's going on these days with COVID-19 and the impact it has had on many businesses, it was such a comfort and relief to have Cellino take care of my parents plumbing issues. It was stress-free. I was able to work without wondering and worrying. My parents were very happy with the service delivered. And happy parents means happy POA. Cellino was referred to me, and they are officially my go-to for plumbing needs. Though I had different techs, it's nice to know that no matter who shows up, you can count on excellent customer service from beginning to end.. This includes the ladies in the office. Thanks Taylor! I highly recommend Cellino."
Sewer Camera Inspection
Excavator Digging the Exterior Hole
Fusing the New Sewer Line
Attaching the Bursting Head to the New Sewer Line
Sewer Bursting Machine in the Exterior Hole

+18

3 neighbors recently requested a quote
Recommended by86%of homeowners
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FAQs for air conditioning projects in Lancaster, NY

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 Lancaster, NY homeowners’ guide to air conditioning services

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