New construction offers a genuine opportunity to build in allergen prevention through material and system choices.
- Request hard flooring or minimal carpet, particularly in bedrooms.
- Ask about HVAC filtration MERV rating and upgrade options during construction.
- Mechanical ventilation systems (ERV/HRV) provide consistent fresh-air exchange benefiting allergen management too.
- These features are easier to build in during construction than retrofit later.
Flooring Choices
Request hard flooring (or minimize wall-to-wall carpet) in key areas, particularly bedrooms, as a proactive allergen prevention feature built in from the start.
HVAC Filtration Specification
Ask about the builder’s standard HVAC filtration MERV rating and whether upgrading to a higher rating is available, since this is easier to specify during construction than to retrofit later.
Mechanical Ventilation Systems
Homes with dedicated mechanical ventilation (ERV/HRV) provide more consistent fresh-air exchange, which can help manage indoor allergen concentration alongside other air quality benefits.
Timing: When Each Decision Is Still Available
The value of asking during construction comes entirely from asking early enough. Duct layout and the space available for a filter housing are settled at rough-in, well before any of it is visible, so a filtration question raised at the walkthrough is being raised after the decision has already been made. Flooring comes later and stays flexible for longer. Ventilation equipment sits somewhere in between.
Ask the builder to tell you which of your requests are still open and which have passed, rather than assuming the answer is the same for all of them. That conversation is short, and it prevents the common outcome where a reasonable request is agreed to in principle and then quietly cannot be honored.
Get It on the Specification, Not in Conversation
Anything agreed verbally with a sales representative is difficult to rely on later. If a flooring type, a filter housing size or a ventilation system matters to you, ask for it to appear on the specification sheet or as a written change order, with the model or material named rather than described in general terms. The trades build from the document, not from the conversation.
It is also worth asking what the builder’s standard already includes before asking for an upgrade, because in some cases the standard covers what you want and the change order is unnecessary. Where an upgrade does carry a cost, ask whether it is priced as an option or as a change, since those are handled differently and the difference can be substantial.
Finally, ask who maintains the system after handover and what the warranty covers, since a ventilation system that is not serviced does not deliver what it was specified for.
FAQ
Is it worth requesting hard flooring instead of carpet in new construction?
Reasonable for allergy-prone households — hard flooring reduces dust mite habitat, and it’s easier to specify during construction than replace later.
When is it too late to ask for a filtration change?
Usually once rough-in is complete, since duct layout and the space for a filter housing are fixed at that stage. Ask the builder which requests are still open rather than assuming.
Is a verbal agreement with the sales office enough?
Not reliably. Ask for the material or model to appear on the specification sheet or a written change order, since that is what the trades actually build from.
Confirm specific material and system choices directly with your builder rather than assuming any new construction automatically minimizes allergen risk.
These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease. Content is for informational purposes only and is not medical advice; consult a qualified healthcare provider before starting any supplement. As an Amazon Associate we earn from qualifying purchases.
