Reliable comfort, efficiency, and on-time delivery
At Norman Multiservice Group LLC, we install, replace and maintain residential and light-commercial HVAC systems
(central split, ductless mini-split, heat pumps and rooftop). We manage permits when required and coordinate specialized subcontractors under strict jobsite safety and code compliance.
What’s included
Assessment & Technical Proposal
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Space assessment, solar exposure, and duct condition check.
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Manual-J load calculation to size equipment correctly.
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SEER2 efficiency options (single/two-stage and variable speed).
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Airflow improvements and duct sealing recommendations.
Installation / Replacement
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Level pad/stand, new/recertified line set, deep vacuum with micron gauge.
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Drain pan with float switch, trap and drain cleaning.
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Insulated line set, sealed penetrations, electrical/breaker per nameplate.
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Commissioning: verify subcooling/superheat and ΔT for proper performance.
Preventive & Corrective Maintenance
- Coil cleaning (evaporator/condenser) and pressure checks.
- Condensate line flush and treatment (as applicable).
- Electrical inspection: capacitor, contactor, relays, fan/blower.
- Filter replacement/advice (proper MERV for your system).
- Thermostat calibration (including smart models).
- Basic airflow balancing and minor duct leak sealing where visible.
Add-ons
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Mini-split single or multi-zone.
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Smart thermostats and simple zoning.
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Duct repair/partial replacement and grille upgrades.
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Rooftop unit maintenance for light-commercial sites.
Benefits
Proper sizing = lower energy use and fewer failures.
Full code compliance and inspections where applicable.
Written installation warranty + manufacturer warranties per equipment.
Clear reports and maintenance reminders.
Our process (step-by-step)
Paso 1
Free evaluation and comfort/efficiency goals.
Paso 2
Load calculation and side-by-side proposal (options + schedule).
Paso 3
Permits & logistics (access, protection, work hours).
Paso 4
Installation and performance testing.
Paso 5
Handover & training (filter care and thermostat).
Paso 6
Scheduled maintenance (spring/fall) with reminders.
Our Services
Commercial Remodeling
Residential Remodeling
Residential Remodeling
Kitchens, bathrooms and indoor/outdoor spaces with premium finishes.
Fix-n-Flip
Demolition & Dumpster Rental
A/C Installation & Maintenance
Exteriors: Windows, Doors, Siding, Stucco
Exteriors: Windows, Doors, Siding, Stucco
Facade improvement, efficiency and visual impact.
Permits, Design and Plans
Plumbing
Drywall & Finishes
Roof Repair
Gardening and Landscaping
Gardening and Landscaping
Year-round lawn maintenance, mowing, and landscape improvements.
Moving
FAQ
Frequently Asked Questions
We have compiled in this list some of the most frequently asked questions from our clients.
How often should I service my system?
Ideally twice a year; at minimum once annually.
How often should I change filters?
Every 30–90 days depending on filter type (MERV) and usage.
When is replacement better than repair?
At 10–15 years of age, with frequent failures or poor efficiency vs. modern SEER2 units.
Do you install ductless systems?
Yes—single and multi-zone mini-splits.
Do you handle permits?
Yes, when scope requires electrical/mechanical permits. We manage the paperwork.
