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Find Air conditioning pros in Dennis Port

Avatar for Local HVAC
Local HVAC
4.9(
52
)

Serving Dennis Port, MA and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: Quick response

"Local HVAC recently installed Central Air in my home in Centerville, MA. They gave me a great price, and provided superior value and excellent service. They were personable, efficient and very professional. I found Matt, Wayne and Dave to be top-notch, they were (are) awesome. They showed tremendous respect for my property and pets while on the premises and were flexible and accommodating with my schedule. I couldnâ t be more pleased with the service I received. I would highly recommend them. I plan on keeping them for any HVAC maintenance and checkup service in the future. Thank you , thank you, thank you to â Local HVACâ ."
new on demand boiler
Response time7 hrs
38 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Joe Cool
Joe Cool
4.8(
113
)

Serving Dennis Port, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1983

Emergency services offered

Warranties offered

"Very knowledgeable and professional. He was on time and delivered as promised. Would definitely recommend him and use him again for my air conditioning needs."
Central AC New Home
New Seabury, Mashpee
Mitsubishi
Trane
Ridge Club Sandwich

+101

Response time9 hrs
Response rate86%
22 neighbors recently requested a quote
Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)

Serving Dennis Port, MA and surrounding areas

Approved

In business since 1944

Free estimates

Emergency services offered

"My electrician from Cotti-Johnson HVAC was a master electrician. If you get him, you are getting the best. I went with the most expensive work package of the 3 that were presented. First off, it was pricey. I knew that going in. I want Cotti-Johnson to understand that I am serious about a working relationship with them. I feel I have done that with their electrical department. Now, if I need their plumbing or HVAC service, our relationship can build off the first experience."
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation

+56

Response time10 hrs
Response rate94%
103 neighbors recently requested a quote
Avatar for Braga Bros, Inc.
Braga Bros, Inc.
5.0(
8
)

Serving Dennis Port, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1996

Free estimates

Emergency services offered

"Braga Brothers provided exceptional service during my gas furnace installation. The team was punctual and efficient, completing the job with confidence and professionalism. They took care to protect my home and explained the system thoroughly, ensuring I understand the new system. I highly recommend Braga Brothers for anyone in need of HVAC services."
High efficiency System
High Efficiency Hvac Syst
Central Hvac in the Basem
Central HVAC System
Rooftop

+16

Response time3 hrs
Response rate93%
1 neighbors recently requested a quote
Avatar for Paul Foley Electric Co., Inc.
Paul Foley Electric Co., Inc.
4.7(
79
)

Serving Dennis Port, MA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

At Premier Energy Solutions, your comfort and safety come first. We protect your home or business with turnkey, worry-free generator installations, HVAC systems, and electrical work — all backed by unmatched reliability and value.\n\nEvery project is handled by licensed professionals using top installation practices. From backup power to heating and cooling to electrical upgrades, we make it seamless, professional, and built to last.\n\nSince 1992, Premier Energy Solutions has grown from a licensed electrical contractor into a full-service power, comfort, and safety provider. We deliver a complete, turnkey experience — design, permitting, installation, testing, and support.\nGenerators. HVAC. Electrical. One trusted team.

5 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Paul Foley Electric Co., Inc.
Paul Foley Electric Co., Inc.
4.8(
99
)

Serving Dennis Port, MA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Paul was very thorough in reviewing his proposal and his reasons for choosing the installation plan. He was accommodating with regard to our work scheduling needs. His installation crew was efficient and professional and restored our property to pre-installation condition."
Auto Transfer Switch
Connection to propane tanks
Housekeeping pad
Trenching
Custom Poured Pad

+13

164 neighbors recently requested a quote
Recommended by85%of homeowners
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FAQs for air conditioning projects in Dennis Port, MA

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 Dennis Port, MA homeowners’ guide to air conditioning services

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