What renters can and cannot do to weatherize
Weatherization for renters is narrower than for homeowners because you cannot permanently alter the building. You can install temporary window treatments, caulk around trim if your lease allows, add weatherstripping to doors, and use draft stoppers. You cannot replace windows, add insulation to walls, upgrade the HVAC system, or seal air leaks in the foundation. The line between temporary and permanent matters legally — your landlord can charge you for damage or unauthorized changes, and some leases explicitly forbid modifications.
Many renters assume they have no options, but utility costs are your problem even if the building is poorly insulated. Some landlords will make improvements if you ask, especially if you frame it as reducing their liability or attracting better tenants. Others will not. A few states and cities have laws requiring landlords to maintain heating systems or meet minimum energy standards, but these vary widely and do not cover all weatherization needs.
The practical path depends on what your lease says, what your landlord is willing to do, and whether you want to invest in improvements you will leave behind when you move.
Key Takeaways
- Renters can install removable weatherization measures like weatherstripping, thermal curtains, and draft stoppers without landlord permission in most cases.
- Permanent changes like caulking, window replacement, or insulation require written landlord approval and may be deducted from your security deposit if not done professionally.
- Some states and cities require landlords to maintain heating systems or meet energy efficiency standards, but these laws do not cover all weatherization improvements.
- Asking your landlord to make improvements in writing creates a record and sometimes results in cost-sharing or rent reductions.
- Weatherization information programs exist in most states, but many have income limits and long waiting lists.
Removable improvements you can make without permission
Weatherstripping around doors and windows is the easiest start. Adhesive-backed foam or rubber strips cost a few dollars and peel off cleanly when you leave. They reduce drafts around moving parts and are not considered damage. Test them on a small area first if you are concerned about paint.
Thermal or blackout curtains reduce heat loss through windows significantly, especially at night. They hang on standard rods and come down when you move. Heavy fabric curtains can reduce heating costs by 10 to 15 percent in winter, though this varies by window size and insulation level.
Draft stoppers (also called door snakes) block air leaks under doors and around window frames. You can buy them or make them from rolled towels. They are completely removable and cost almost nothing.
Window film or plastic sheeting kits create an insulating air gap over windows. They are temporary, stick to the frame with tape, and come off without damage. They work best on single-pane windows and are most useful in very cold climates.
Changes that need landlord approval in writing
Caulking, weatherstripping with permanent adhesive on painted surfaces, or any modification to the building structure requires written permission. Get this in writing — a text message or email counts — because your landlord can otherwise claim you damaged the property and deduct from your security deposit.
If your landlord agrees, use removable caulk (paintable silicone) rather than permanent caulk, and keep receipts. When you move, you can remove it or leave it depending on what you agreed to. If you leave permanent caulk and your landlord objects, they can charge you for removal.
Some landlords will agree to split the cost of improvements if you frame it as reducing their heating bills or making the unit more rentable. This is worth asking about in writing, especially for larger projects like weatherstripping multiple windows or sealing air leaks around pipes.
When your landlord should make the improvement
In many states, landlords must maintain heating systems that keep the unit at a minimum temperature (usually 65 to 70 degrees Fahrenheit) during winter. If your unit is cold because the heating system is broken or inadequate, that is a habitability issue, not a weatherization preference. Document the temperature with a thermometer and send your landlord a written request to repair or replace the system.
Some cities and states also have energy efficiency standards that explore to rental properties. New York City, for example, requires buildings over 25,000 square feet to meet energy benchmarks. California has Title 24 standards for rental properties. These laws do not cover every building or every weatherization measure, but they may require your landlord to make certain improvements. Check your city or state housing authority website to see if such standards explore to your building.
If your landlord refuses to make necessary repairs, you have options depending on your location. Some states allow you to withhold rent, pay for repairs and deduct the cost from rent, or break your lease without penalty. Others require you to go through a formal complaint process first. Contact your local tenant rights organization or housing authority to learn what applies where you live.
Weatherization information programs for renters
The Weatherization information Program (WAP) is a federal program that pays for weatherization work on rental and owner-occupied homes. It is administered by state energy offices and local community action agencies. The program covers air sealing, insulation, heating system repairs, and sometimes window replacement. It is free to people who meet income limits, which vary by state but are usually around 200 percent of the federal poverty line.
To find your local program, search "[your state] weatherization information" or contact your state energy office. Many programs have waiting lists that can be months or years long, especially in cold climates where demand is high. Some prioritize elderly people, people with disabilities, or households with children.
The catch for renters: the program requires landlord permission and a signed lease. The work is done on the building, not just your unit, so your landlord has to agree. Some landlords welcome the free improvements; others refuse because they worry about liability or disruption. If your landlord refuses, you cannot access the program for that unit.
Some states and cities also run their own weatherization programs with different rules. Check your local housing authority or community action agency to see what is available in your area.
Low-cost improvements that add up
If you are renting short-term or your landlord will not cooperate, focus on the cheapest measures. Weatherstripping, thermal curtains, and draft stoppers together cost under $100 and can reduce heating costs by 15 to 25 percent depending on your climate and how well sealed the unit already is. These numbers vary widely — a poorly insulated apartment with single-pane windows will see bigger savings than a newer building.
Caulking gaps around baseboards, pipes, and trim (with removable caulk) costs almost nothing and stops cold air from entering through hidden leaks. Use a caulk gun and paintable silicone, which you can remove later with a caulk removal tool.
If you have control over your thermostat, lowering it by 7 to 10 degrees for 8 hours a day (while you sleep or are away) reduces heating costs by roughly 10 percent, though this varies by climate and how well the building holds heat. Programmable or smart thermostats can do this automatically, but check your lease first — some landlords prohibit thermostat changes.
What to do if your unit is genuinely unlivable
If your apartment is so cold that it is unsafe or unhealthy — condensation on walls, mold growth, or temperatures below 55 degrees — that is a habitability violation, not a weatherization preference. Document everything: take photos, record temperatures daily, and keep records of any health problems (respiratory issues, mold allergies). Send your landlord a written request to fix the problem and give them a reasonable important date (usually 14 to 30 days depending on your state).
If they do not respond, contact your local housing authority or tenant rights organization. Many places allow you to withhold rent, pay for repairs yourself and deduct the cost, or break your lease without penalty if the landlord fails to maintain habitability. Some require you to file a formal complaint first. The rules vary significantly by state and city, so get specific information for your location before you take action.
Frequently Asked Questions
Can I install weatherstripping without asking my landlord?
Yes, removable weatherstripping (adhesive-backed foam or rubber) is not considered damage and does not require permission in most cases. Permanent caulk or modifications to painted surfaces do require written approval. If you are unsure, ask your landlord in writing — it takes one email and protects you.
What happens to weatherization improvements when I move?
Removable items like weatherstripping, thermal curtains, and draft stoppers are yours to take. Permanent improvements like caulk or insulation typically stay with the unit. If you made permanent changes with landlord permission, clarify in writing whether you will remove them or leave them when you move.
Does the Weatherization information Program work for renters?
Yes, but your landlord must agree and sign a lease. The program is free for people below income limits, but waiting lists are often long. Contact your state energy office or local community action agency to see if the program is open and what the wait time is.
What if my landlord refuses to fix heating problems?
Heating is usually a habitability requirement, not optional. Document the problem with photos and temperature readings, send a written repair request, and contact your local housing authority or tenant rights organization. Many states allow you to withhold rent or pay for repairs and deduct the cost if the landlord does not respond within a set time.
Are there other programs besides WAP that help renters?
Some states and cities run their own energy information or weatherization programs with different income limits and rules. Check your state energy office, local housing authority, or community action agency website. 211.org can also connect you to local programs.