What HVAC Homeowners Should Do Before Summer Hits in Boston

May 31, 2025

As temperatures climb and summer approaches, your HVAC system will soon be working overtime to keep your home cool and comfortable. But before the heatwave hits, it’s crucial to ensure your system is in peak condition. Regular maintenance not only helps your unit run efficiently but can also extend its lifespan and reduce energy costs.

Here’s a complete HVAC maintenance checklist every homeowner should tackle before summer arrives:

1. Replace or Clean Air Filters

Your HVAC’s air filter traps dust, pollen, and other particles. Over time, it can get clogged, forcing your system to work harder and decreasing indoor air quality. Replace disposable filters or clean reusable ones every 1–3 months, especially before a new season.

Pro Tip: If you have pets or allergies, replace your filters more frequently for optimal performance.

Explore more about our HVAC Maintenance Services for better air quality and system performance.

2. Clear Debris Around the Outdoor Unit

Leaves, dirt, and other debris often collect around the outdoor condenser unit. Clear a 2-foot space around it and gently rinse the coils with a garden hose to remove buildup that can restrict airflow.

Not sure what to look for? Our team at Home Mechanics can inspect and clean your outdoor unit professionally. 

3. Check Thermostat Settings

Test your thermostat by turning on the cooling mode to ensure it responds quickly and accurately. If it’s outdated, consider upgrading to a programmable or smart thermostat to save on energy costs and increase comfort.

We install and configure smart thermostats as part of our Cooling System Services for optimal energy efficiency.

4. Inspect Ductwork and Vents

Leaky or blocked ducts reduce airflow and efficiency. Visually inspect ductwork in accessible areas for signs of wear, gaps, or mold. Also, ensure that vents throughout your home are clean and unobstructed by furniture or rugs.

Need help with airflow issues? Learn more about our Duct Cleaning and Repair Services.

5. Examine Electrical Connections

Loose or frayed electrical connections can be dangerous and reduce system performance. While this is best handled by a professional, homeowners can look for any visible signs of wear or burning smells and report them during a maintenance check.

For safe and reliable solutions, our licensed technicians are here to help.

6. Check Refrigerant Levels

Low refrigerant is a common cause of poor cooling. If your home isn’t getting as cool as it should, or if you hear hissing noises from the unit, you may have a refrigerant leak. A licensed HVAC technician should handle any repairs or refills.

We provide full diagnostics and refrigerant services through our AC Repair Services.

7. Lubricate Moving Parts

Motors and other moving parts need proper lubrication to reduce friction and wear. Lack of lubrication can lead to overheating and part failure. This is typically included in a professional maintenance service.

Save yourself the hassle by signing up for our Seasonal HVAC Maintenance Plans.

8. Schedule a Professional HVAC Tune-Up

Even if everything seems to be working fine, a professional tune-up is your best defense against unexpected breakdowns. A technician can perform a deeper inspection, catch small issues before they become costly repairs, and ensure your system is summer-ready.

We make it easy to schedule a professional HVAC tune-up—just give us a call or book online.

Why Preventive Maintenance Matters

Routine HVAC maintenance offers multiple benefits:

  • Lower energy bills

  • ️ Fewer emergency repairs

  • ️ Improved indoor air quality

  • Longer system lifespan

Ignoring maintenance can lead to inefficient operation, higher costs, and discomfort during the hottest days of the year.

Stay Cool with Confidence

Don’t wait until your HVAC system fails on a 90-degree day. Use this seasonal checklist to prepare in advance. For complete peace of mind, contact Home Mechanics and ask about our affordable, expert-driven maintenance services.

We proudly serve homeowners with reliable, efficient, and honest HVAC solutions in Boston Area—just in time for summer.


The Home Mechanics Experience

Quality workmanship: Every member of our team works hard to make sure each install goes according to plan.

The whole process with Home Mechanics exceeded expectations. Installers were prompt, polite, clean, and did a great job. Communication with Carolyn from the the office was flawless. I almost went with another contractor but commumnication was poor, price was vague and higher, and I felt like they were selling me a car. Highly recommend Home Mechanics!!” — Bob Foley

This was the easiest and honest company I ever dealt with . Matt bonagura was the best he came and gave my a quote. He was honest and upfront. After he gave me a quote he answered every phone call and answered every question I had. Noel is the owner he is upfront and honest also. Carolyn was great to deal with she was pleasant on every phone call. The crew that installed my unit was professional and there work was impeccable. From start to finish this company was the best company I ever dealt with... highly recommend AAAA+” — Tommy Henderson

Customer satisfaction: Our Google rating is 5 stars from more than 30 reviews provided by clients. Here’s one recent example:

I was extremely pleased with this company. The customer service was able to answer all of my questions with clear explanations and made the process easier than I anticipated. The installation team was very professional and worked diligently through extreme weather conditions to finish my whole home project in a timely manner. I highly recommend them !” — Lisa Silva

Financing options: We’ll help you get the most out of Mass Save energy incentives and federal tax credits you may be eligible for. 

Home Mechanics installed mini-split heat pumps in my apartment. They were very professional in every way. Carolyn Cutting helped me apply for the incentives and answered any questions. I highly recommend this firm.” — Kathy Modigliani

Great company to do business with. On time professional. All work was performed as expected and job site was left immaculate. Guided us thru the process of rebates and no interest loans with ease.” — Michael Swansey



Mass Save Program Logo

Before you do anything, get a no-cost Home Energy Assessment courtesy of Mass Save. These approved home energy contractors will come out and identify all of the places your home is wasting energy. 

They will introduce you to new ways of conserving energy at home — including ductless heat pumps and mini-splits — because Mass Save offers big rebates when you replace old school central AC with modern low-energy alternatives in Massachusetts.

FAQ / Tips


Whether you require simply deplete cleaning or a whole pipes registration.

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Why call Home Mechanics?

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Whether you require simply deplete cleaning or a whole pipes registration.

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate.

Whether you require simply deplete cleaning or a whole pipes registration.

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate.

Whether you require simply deplete cleaning or a whole pipes registration.

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate.