Heating & Air Conditioning in Dennis, MA

Roberson Heating & Air Conditioning provides heating and cooling service throughout Dennis and the surrounding Massachusetts area. A dripping condenser, an iced-over coil, or a dead furnace — call and talk to a local tech who's seen it before.

Furnace installation

High-efficiency furnace installs with correct venting, sizing, and thermostat setup.

Ductless mini-splits

Single and multi-zone systems for additions, garages, and rooms that never cool right.

AC installation & replacement

Properly sized new systems with load calculations, from value units to high-SEER equipment.

Seasonal tune-ups

Preventive maintenance that keeps efficiency high and catches cheap fixes early.

Duct cleaning & sealing

Airflow restoration and leak sealing to fix uneven rooms and dusty air.

Thermostat installation

Smart and programmable thermostat wiring, setup, and configuration.

Heating & Cooling in Dennis, Massachusetts

Harsh coastal winters make dependable heat the first priority around Dennis, with boilers and furnaces carrying long seasons and nor'easters testing every component. Increasingly hot, humid summers have made whole-home cooling and heat pumps the fastest-growing upgrade in the state. Local providers like Roberson Heating & Air Conditioning understand these conditions and service equipment accordingly.

Common HVAC Problems in Dennis

Strange noises at startup

Grinding, squealing, or banging at startup often signals worn bearings, a loose blower wheel, or delayed furnace ignition — all worth addressing before they become breakdowns.

Thermostat not matching room temperature

When rooms feel different from the set temperature, the fix may be as simple as thermostat placement or as involved as duct balancing and zoning.

Frozen evaporator coil

Ice on the indoor coil chokes cooling entirely. Restricted airflow or low refrigerant are the usual causes, and running the unit while frozen risks compressor damage.

AC blowing warm air

When an air conditioner runs but does not cool, common culprits include low refrigerant from a slow leak, a failed capacitor, or a dirty outdoor coil that cannot shed heat.

Why Choose a Local Massachusetts Company

Local technicians know the housing stock — from older homes with aging ductwork to new builds with high-efficiency systems. A provider who works these neighborhoods daily has seen your exact system and failure pattern before. Understanding the regional climate means recommendations sized for real conditions, not national averages.

Seasonal Tips for Massachusetts Homes

Install a carbon monoxide detector on every floor if you heat with gas or oil, and check batteries each fall.
Keep snow and ice cleared from heat pump outdoor units and exhaust vents to prevent shutdowns and carbon monoxide risks.
Test the furnace on the first cool fall day, not the first freezing night, so any repair happens before the rush.
Seal drafts around doors and windows — reducing heat loss lets the furnace cycle less and last longer.

Frequently Asked Questions

Why is my AC running constantly in summer?

During heat waves some runtime is normal, but nonstop operation with poor cooling suggests low refrigerant, dirty coils, duct leaks, or an undersized system. A service visit can pinpoint which.

What size HVAC system does my home need?

Sizing depends on square footage, insulation, windows, ceiling height, and local climate — not guesswork. An oversized unit short-cycles and an undersized one never keeps up, so a proper load calculation matters.

How often should I change my air filter?

Every 1–3 months for standard filters, depending on pets, dust, and usage. A clean filter is the cheapest way to protect airflow, efficiency, and indoor air quality.

How long does an air conditioner last?

A well-maintained central air conditioner typically lasts 12–17 years. Systems that run long seasons or skip maintenance wear out sooner, while regular tune-ups and prompt repairs stretch lifespan toward the upper end.

Should I repair or replace my system?

A common rule: if the unit is past 12 years old and the repair costs more than a third of replacement, replacement usually wins. A technician can weigh age, efficiency, refrigerant type, and repair history for your specific unit.