Crawl-space dehumidifier installation quote checklist

Define the problem and the scope first

Give each installer the same temperature/RH observations, space sketch, access measurements and proposed drain destination. Separate equipment installation from water-entry, sealing or other building work. Ask what is included in the recommendation and which assumptions remain to be verified on site. We do not supply a national average installation price: without a common scope, location and measured proposals, that number would not tell you which quote is complete.

State which areas need moisture control and any divided sections.
Provide the clear access opening and turning route.
Identify the lowest relevant inlet-air temperature.
List building work separately from the appliance installation.

Supporting sources: AprilAire; manufacturer PDF hosted by Sylvane / Santa Fe ↓

Require an exact equipment and accessory schedule

A proposal should identify the model, suffix, refrigerant/generation when relevant and included accessories. A base model with an external pump is not the same purchase as a pump inside the cabinet. Similar family names can share a certified rating while their drain equipment differs. Ask whether collars, controller, pump reservoir, mounting kit, tubing and fittings are included, excluded or supplied by you. Compare those details before comparing totals.

Use the same scope columns for every proposal
Line item	Ask the installer to identify	Compare as
Unit	Exact model/SKU and delivered version	Included / excluded / customer supplied
Access and mounting	Transport route, supports and service envelope	Included / excluded / unresolved
Drain	Gravity route, trap, pump and destination	Included / excluded / unresolved
Air and controls	Collars, duct layout and humidity control	Included / excluded / unresolved
Handover	Drain test, control setup and documentation	Included / excluded / unresolved

Supporting sources: AprilAire; manufacturer PDF hosted by Sylvane / AlorAir / Santa Fe ↓

Ask for the installed envelope, not just the cabinet

Include access to the filter, service panels, air openings and drain equipment. Ultra70’s current drawing separates its 22-inch bare body from 28 inches with collars. The filter-removal space and drain geometry are additional. E080/E100 documents give a 15-inch filter-extraction requirement on the chosen side. If instructions conflict, ask how the proposed layout reconciles them instead of allowing the smallest figure to become an unconditional fit approval.

The cabinet, airflow allowance, filter access and drain route included in an installation assessment — Ask for the complete installed and serviceable envelope. Distances belong to the exact model instructions.

Supporting sources: Santa Fe / AprilAire official DAM / Santa Fe / AprilAire; manufacturer PDF hosted by Sylvane ↓

Check the access route through your hatch →

Make the drain and electrical work explicit

Identify the condensate destination and how water reaches it, including any rise, reservoir and overflow provisions. Ask what electrical supply work is included and which model instructions and local requirements apply. The quote should distinguish connecting equipment to a suitable existing supply from work required to create one. Do not interpret a published current value as a finished electrical design. The installer should state who handles any separate work and permissions.

Supporting sources: AprilAire; manufacturer PDF hosted by Sylvane / Santa Fe ↓

Check vertical lift and the complete pump route →

Separate capacity justification from catalogue coverage

Ask why the proposed unit suits the actual moisture load, air distribution and lowest relevant condition. Advertised square footage is not a universal sizing calculation. A warm-condition rating does not establish cold-condition output, and a duct collar does not finish a whole-home design. A useful proposal explains the operating conditions and distribution plan alongside the model selection, rather than relying only on the largest headline pint number.

Supporting sources: AprilAire; manufacturer PDF hosted by Sylvane / Santa Fe / eCFR / U.S. Department of Energy ↓

Check what changes near 50°F →

Agree on commissioning, service and exclusions

Before accepting, ask how humidity control, air movement and drainage will be checked, which documents and model identification you will receive, and how future filter or pump service is accessed. Separate equipment warranty terms from installation labour and any follow-up service. Ask who responds to a fault and which parts of the proposal remain excluded. Keep written assumptions with the quote so a lower total does not conceal a missing route, accessory or necessary building task.