Preventive Maintenance Checklist & Service Guide
Lessee Preventive Maintenance Checklist
Weekly
- Wipe down desks, counters, and other frequently‑touched surfaces.
- Vacuum carpet and entry mats.
- Damp‑mop vinyl or tile floors—avoid standing water.
- Disinfect restroom fixtures and partitions.
- Clean kitchen worktops, sinks, and appliances.
- After every significant storm, walk the interior and exterior to spot leaks or other damage.
Monthly
- Replace the HVAC return-air filters; inspect the supply and return grilles.
- Strip, clean, and polish resilient flooring where installed.
- Inspect hinges, closers, and locks on doors and windows; lubricate or adjust for smooth operation.
Quarterly
- Schedule a licensed HVAC technician for a seasonal tune‑up—coil wash, system test, new filter, thermostat calibration.
- Wash walls, partitions, and other hard surfaces to remove dust and marks.
- Clear leaves, rubbish, or other obstructions from around outdoor HVAC equipment to maintain airflow.
Annual Interior
- Have carpets professionally steam‑cleaned.
- Drain the water‑heater tank to remove sediment.
- Inspect every faucet, valve, trap, and hose for drips or leaks; repair promptly.
- Test smoke detectors, fire extinguishers, exit signage, and emergency lighting.
- Press the TEST/RESET button on all GFCI receptacles.
- Examine ceramic tile and grout; re‑adhere or replace loose pieces.
- Check door frames, hardware, and trim for wear; tighten screws and realign as needed.
Annual Exterior
- Remove debris from gutters, downspouts, window wells, and roof drains; verify downspout extensions are secure.
- Confirm gutters are properly sloped and free of rust or separation.
- Trim shrubs and tree limbs so they do not touch or overhang the building.
- Clean and inspect insect screens on windows and doors.
- Reseal joints at windows, doors, module mate‑lines, and other seams with exterior‑grade caulking.
- Replace damaged or brittle weather‑stripping.
- Touch‑up or repaint surfaces where finish is peeling.
- From the ground, look for shingles or roofing membrane that is curled, missing, or lifted; inspect flashings at curbs and penetrations.
- Ensure roof vents and louvers are clear and their screens intact.
- Verify exterior doors and locks function smoothly.
- Check the grading to confirm that water drains away from the foundation; look beneath the building for any standing water.
- Inspect skirting, decks, stairs, and ramps for damage or loose fasteners.
Report any deficiencies to Carter Leasing Solutions immediately.
Quick‑Reference Troubleshooting
Electrical Systems
- Use only licensed electricians for service work. Portable generators are discouraged due to the potential for voltage spikes.
- Verify that the building is supplied with 240V and has adequately sized conductors.
- If all lights are out, switch each breaker entirely OFF and then ON; some breakers appear to be set but are partially tripped.
- If individual receptacles are dead, press the RESET button on the nearest GFCI, then check the breakers.
HVAC (General)
- Replace air filters monthly, or more frequently in dusty conditions.
- Arrange a quarterly professional HVAC service that includes coil cleaning, a full system check, a fresh filter, and thermostat calibration.
- Water dripping beneath the outdoor unit is normal condensate in hot, humid weather.
If air is not circulating:
– Confirm filters are clean.
– Ensure supply diffusers are open and return grilles are unobstructed.
– Check that fire/smoke dampers (if installed) are open.
– Verify proper voltage at the unit breaker.
Wall‑Mounted Unit Filter Change (one filter per system):
- Set thermostat to OFF.
- Open the exterior disconnect or turn off the breaker in the panel.
- Remove the small service door, slide out the used filter, and slide in the new filter with the arrow pointing UP.
- Restore power and restart the thermostat.
Return‑Air Grille Filter Change (if installed):
- Unscrew the grille, replace the filter, and reattach the grille.
- Ensure only one filter is installed—either in the unit or the grille, not both.
Water Heater
- The tank must be full before energizing its breaker; a dry-fired element will fail to operate.
- For tank-type heaters, confirm that the breaker and on/off switch are set to the ON position.
- For on-demand models: verify that breakers are on and do not replace faucet aerators with higher-flow versions.
If hot water issues persist after these checks or for any symptom beyond the scope of this guide, contact Carter Leasing Solutions Service by submitting a service request below.
For assistance, contact our Service Department by submitting an online request below.

Service & Return Resource Guide
Before requesting pick‑up, please review the following obligations and helpful information:
1. What the Lease Covers
Ordinary mechanical or structural failures caused by normal wear are repaired by Carter Leasing Solutions or its authorized subcontractors. Consumables such as HVAC filters and lamps/ballasts remain the customer’s responsibility.
2. Third‑Party Work
Carter will not reimburse work performed by outside vendors unless you have written authorization in advance.
3. Damage & Abuse
Issues arising from improper power supply, theft, vandalism, accident, negligence, extreme weather, or Acts of God are billable to the lessee.
4. Alterations & Relocation
Any modification—including interior or exterior penetrations, signage, or painting—requires written approval. Units may not be moved without Carter’s consent.
5. Power‑Up Sequence
Leave the water heater breaker OFF until utility power is energized and the tank is full. Confirm fire/smoke dampers (where installed) are open before starting HVAC equipment.
6. Leveling & Settlement
The lessee is responsible for re-leveling the building and adjusting doors that bind due to soil settlement, as well as protecting water lines from freezing.
7. Cleaning
Sweep or vacuum all floors. If additional cleaning is required, a fee of $500 per module will apply.
8. Tear‑Down Scope
Return fees cover Carter‑supplied equipment only. Removal of site‑built stairs, ramps, fencing, landscaping, plumbing, data or fire‑alarm cabling, and similar items is outside our scope unless agreed in writing.
9. Customer Property
Remove all furniture, equipment, and materials. Carter Leasing Solutions is not liable for items left in the unit.
10. Keys & Locks
Leave all keys inside the building and unlock the doors. Locks without keys will be re‑cored at $75 per lockset.
11. Site Access
Provide unobstructed access for a standard delivery truck. A detailed removal checklist will be sent before the scheduled date.
Visit our website at ModularInventory.com to see our current inventory.
Get in Touch with Us
Contact Carter Leasing
For any inquiries about our modular buildings, please reach out to us. Our team is ready to assist you with any questions you may have. Or request a quote below.
Contact Email: sales@carterleasingsolutions.com
Contact Phone: 800-791-4550