AC Services in Timonium, MDHigh-Quality, Affordable HVAC Repair & Installation

At Chason Services, we offer a full range of AC services, from spring tune-ups and maintenance plans to repairs and new installations. With 80 years in the HVAC industry, our team keeps Central Maryland homes cool and comfortable all summer. The best way to avoid a mid-July breakdown is to have your system checked before the heat arrives, and that’s where we start.

Why Annual AC Maintenance Matters

Regular maintenance will:

• Help you avoid costly repairs by catching worn parts early.
• Lower your energy bills by keeping the system running efficiently.
• Extend the life of your equipment.
• Improve indoor air quality. Coils and filters that aren’t cleaned regularly can harbor mold and bacteria.
• Protect your warranty. Many manufacturers require proof of regular maintenance.

A Real Inspection, Not a Sales Pitch

At Chason, we do a full inspection, not a quick look. We don’t glance at your air conditioner and tell you that you need a new unit. We actually maintain it so it lasts. That means checking refrigerant pressures, subcooling and superheat, testing voltage, amp draw and capacitance, tightening every electrical connection, and inspecting the coils, blower wheel and condensate drains. When we’re done, we go over how your system is running and what condition it’s in, so you can make your own decision.

What’s Included in Our AC Tune-Up

Every cooling inspection follows the same checklist:

• Inspect, clean (if washable) or replace your standard 1″ filter
• Inspect system safety devices
• Check thermostat operation and settings
• Check refrigerant pressures, subcooling and superheat
• Inspect condensate drains and condensate pumps
• Inspect the indoor evaporator coil and outdoor condenser coil
• Inspect fan blades and the blower wheel
• Check voltage, amp draw and capacitance of equipment and components
• Inspect and tighten all electrical connections
• Inspect the water heater
• Review the system’s operation with you and advise you of its current condition

Coil cleaning, condensate pump cleaning and blower wheel cleaning are available as add-on services. Gold members get standard coil and blower wheel cleaning included.

Chason Service Memberships

Our Service Memberships keep your system on schedule and save you money all year. Rates are per system:

Plan	Visits	Price	Parts discount
Bronze	1 per year (heating or cooling)	$199/yr	15%
Silver	2 per year (1 heating + 1 cooling)	$269/yr	15%
Gold	2 per year (1 heating + 1 cooling), with coil and blower wheel cleaning	$399/yr	30%

All members get priority service during business hours, discounted standard and emergency service rates, and discounts on new equipment and upgrades. Homes with more than one system save 10% off the total membership cost.

Our Complete AC Services

• AC Repair. Weak airflow, strange noises or warm air? We diagnose and repair all major brands, and qualifying repairs are backed by two-year Comfort Protection™.
• AC Installation. As an authorized Carrier® dealer, we size and install new systems with free same-day estimates.
• AC Maintenance. Seasonal tune-ups and maintenance plans.
• Emergency AC Service. An on-call technician is available for emergencies outside regular hours (Monday–Friday 4–8 PM and Saturday–Sunday 7:30 AM–8 PM), such as loss of cooling when it’s a health necessity.

Signs Your AC Needs Attention Before Summer

• It hasn’t been serviced in more than a year.
• It made strange noises or struggled to cool last summer.
• Your energy bills went up without explanation.
• The house feels humid or smells musty when the AC runs. Here’s what to do when your AC smells musty.
• Water is pooling near the indoor unit.

Get a head start with our summer AC prep tips.

AC Care for the Maryland Climate

Central Maryland summers bring long stretches of heat and humidity. During those weeks your air conditioner runs almost nonstop and has to pull a lot of moisture out of the air. Pollen, cottonwood fluff and leaves clog outdoor coils, and humid weather can lead to algae in condensate drains. Spring is the right time for a tune-up in Timonium, Cockeysville and across Baltimore County. Clean coils and clear drains let your system handle that first heat wave.

Why Choose Chason?

• Family-owned since 1946, with 4.9 stars from 200+ Google reviews.
• Authorized Carrier® dealer that services all major brands.
• Technicians who stay current through manufacturers’ schools and training.
• A warranty on all services.

What Affects the Cost of AC Service?

• Tune-up versus repair. See our coupons for current inspection pricing.
• Membership: members get discounted service rates and 15–30% off parts.
• System type and number of systems in your home.
• Condition of the system. Heavily soiled coils or a clogged drain take more time.
• Any repairs found, which we always quote before doing the work. Repair visits include a diagnostic fee.

AC Services FAQs

How often should I schedule AC maintenance?

Once a year, ideally in spring. If you notice any problem with your AC in the meantime, call us right away.

What should I do if my AC breaks down?

First check that the thermostat is set to cool and the breaker hasn’t tripped. If it still won’t run, call us for professional diagnosis and repair.

Can you help me choose the right AC unit for my home?

Absolutely. We’ll assess your home’s size, layout and cooling needs and recommend the right system for your space and budget.

Do you offer financing options?

Yes. We offer flexible, convenient financing options for repairs and installations.

Do you offer maintenance plans?

Yes. Our Service Memberships start at $199 per year (Bronze, one visit). Silver ($269/yr) and Gold ($399/yr) include a heating and a cooling visit each year, with 15% or 30% off parts. Call (410) 252-6300 to sign up.

Schedule Your AC Tune-Up Today

Call Chason Services at (410) 252-6300 or fill out our online form to schedule AC maintenance, repair or a free estimate on a new system.

Chason Services · 1947 Greenspring Drive, Timonium, MD 21093 · Office hours Monday–Friday, 7:30 AM–4:00 PM