At Richardson's Mechanical, we offer specialized rooftop unit (RTU) services for commercial properties throughout Southern Maine—serving a 1-hour radius around Portland, including Scarborough, Biddeford, Westbrook, South Portland, and Falmouth. Rooftop HVAC units are the backbone of efficient cooling, heating, and ventilation in offices, retail spaces, restaurants, warehouses, and more. Our certified technicians are fully trained in safe roof access and high-elevation work, delivering thorough inspections, repairs, and upgrades without risking your team's safety or disrupting business operations.

The Importance of Regular Rooftop Unit Maintenance for Your Business

Commercial RTUs endure harsh Maine weather—from salty coastal air and heavy snow to summer heat—leading to accelerated wear if neglected. Skipping service can cause:

• Reduced efficiency: Dirty filters or loose belts spike energy costs by 15-25%.

• Unexpected downtime: Motor failures or refrigerant issues halt comfort and productivity.

• Premature replacement: Avoid costly full-unit swaps with proactive care.

Business benefit: Well-maintained RTUs ensure consistent indoor comfort for employees and customers, lower utility bills, extended equipment life, and compliance with health/safety codes. Enjoy peace of mind knowing your system runs reliably year-round.

Comprehensive Rooftop Unit Inspection & Servicing

Leave the heights to us—our experts safely access and service all makes and models of commercial rooftop units with precision:

• Air filters & inlet screens: Clean or replace to optimize airflow and prevent strain on components.

• Housings & structural checks: Inspect for corrosion, leaks, or weather damage common in Southern Maine.

• Motors & fans: Test for balance, lubrication, and performance to eliminate noise and vibrations.

• Belts & drives: Assess wear, tension, and alignment; replace as needed to avoid breakdowns.

• Full system diagnostics: Refrigerant levels, electrical connections, compressors, economizers, and controls.

Customer experience: Scheduled maintenance minimizes disruptions—often performed off-hours—with detailed reports and recommendations to keep your RTU at peak efficiency.

Expert Rooftop Unit Repair & Part Replacement

When issues arise, our rapid-response team handles repairs efficiently:

• Common fixes: Coil cleaning, capacitor replacements, thermostat calibration, or heat exchanger repairs.

• Genuine parts sourcing: OEM components for lasting reliability and warranty compliance.

• Emergency service: 24/7 availability to restore operations fast and prevent revenue loss.

Pro efficiency tip: Upgrading components like variable-speed drives during repairs can qualify for Efficiency Maine rebates, cutting costs and boosting SEER ratings.

Rooftop Unit Installation & Replacement for Modern Performance

Outdated or failing RTUs? We design and install high-efficiency rooftop systems tailored to your building:

1. Site evaluation: Load calculations, roof structure, and zoning needs for optimal sizing.

2. Seamless installation: Crane-assisted placement, duct modifications, and commissioning with minimal downtime.

3. Energy-saving models: Packaged units with up to 20+ IEER, smart controls, and heat recovery for lower bills and sustainability.

Long-term value: New RTUs enhance air quality, reduce maintenance calls, and increase property appeal.

Why Richardson's Mechanical for Commercial Rooftop Units in Southern Maine?

• Roof-safe specialists: Rigorous training, fall protection, and insurance for secure high-access work.

• Commercial HVAC leaders: Since 2018 we’ve been serving Portland-area businesses with meticulous attention to detail.

• Customer-focused reliability: Flexible scheduling, transparent pricing, and 100% satisfaction guarantee.

Don't risk safety or efficiency with DIY roof access—contact Richardson's Mechanical today at (207) 468-4866 or request a free RTU inspection online. Keep your commercial space comfortable, compliant, and cost-effective with expert rooftop unit servicing!