Denver Tenant Repair Rights 2026–27: How Colorado's Warranty of Habitability Clock Works, From Your Written Notice to a 311 Inspection
In Denver, the most important moment in a repair dispute is not when the heat goes out or the ceiling starts leaking. It is when you tell your landlord about it in writing. Colorado's warranty of habitability law, rewritten in 2024, attaches firm deadlines to that notice. Before it is sent, your landlord has no legal clock running. After it is sent, they do.
That makes this a practical, paperwork-driven problem, and a fixable one. This guide explains which problems count, how to write a notice that holds up, what your landlord must do and by when, where the City of Denver fits in, and the options you have if the repairs still do not happen.
Last checked October 2026. Sources: City and County of Denver Renter's Housing Handbook (September 2025 edition), Denver Department of Public Health and Environment, and the Colorado General Assembly's summary of SB24-094. This is general information, not legal advice.
Does Your Problem Count?
Under Colorado law, every lease includes a promise, called a warranty of habitability, that the home is fit for people to live in. Denver's renter handbook lists examples of conditions that make a unit uninhabitable:
Problems with plumbing, running water, hot water or sewage
No heat, or electrical problems
Broken appliances such as the oven, stove or refrigerator
Broken exterior doors, windows or locks
Mold associated with dampness from a leak or other water intrusion, other than minor surface mold
Gas problems
Infestations of insects, pests or vermin
Dangerous floors, ceilings, steps or railings
Serious health code violations
The handbook adds a useful rule of thumb: any condition inside your unit that significantly affects your or your family's health or safety is an uninhabitable condition. Landlords also have to keep common areas they control clean, sanitary and free of debris and infestations.
What usually does not count: damage you, your household or guests caused, and cosmetic issues that do not affect health or safety.
Step One: Send the Notice the Right Way
The handbook says you need to notify the landlord in writing, or by any method specifically allowed in your lease, as soon as possible. Check your lease and property rules first. If the landlord requires repair requests through a tenant portal or a specific email address, use it. Someone else can send the notice on your behalf.
You must keep proof that the notice was delivered. Screenshots of a portal confirmation, a sent email or a certified mail receipt all work.
Denver's handbook suggests including, though it is not required:
The date you sent the notice
Your name, address and unit number
The landlord's name and address
A detailed description of the problem, with photos if you can
A statement giving the landlord permission to enter and make the repair
Your signature and the date
That permission-to-enter line matters. It removes a common reason for delay.
For no water, no electricity or no heat, the Denver Department of Public Health and Environment publishes a landlord notification letter template on its Residential Health Emergencies page that cites the city's housing rules. You can paste it into an email and add your specific concerns.
The Clock: What Your Landlord Must Do and When
Once the landlord has your notice, Colorado law sets these timelines, as summarized in Denver's handbook:
Deadline after notice | Landlord duty |
24 hours | Respond, stating how they intend to fix the problem and estimating when repairs will start and finish |
24 hours | Start repairs if the condition materially interferes with your life, health or safety |
72 hours | Start repairs for other uninhabitable conditions |
72 hours (mold) | Contain the mold, stop the water source and install a HEPA air filtration device |
7 days | A health-or-safety condition still unfixed is presumed not fixed within a reasonable time |
14 days | Any other uninhabitable condition still unfixed is presumed not fixed within a reasonable time |
The landlord's 24-hour response must also tell you about their duty to provide a comparable unit or a hotel room at no cost to you if the problem threatens your health or safety. If they need to come in, they must give you written notice at least 24 hours ahead, except in true emergencies that threaten someone's life, health or safety or that would cause substantial damage to the property without immediate repair.
The 7- and 14-day marks are "rebuttable presumptions." A landlord can try to show that something outside their reasonable control caused the delay. Refusing to let them in is one thing that can count against you, so cooperate with entry when proper notice is given.
Emergencies and the Hotel Room
When a habitability problem puts your health or safety at risk, you can request, and the landlord must provide, a comparable unit or a hotel room paid for by the landlord. The state legislature's summary of SB24-094 describes this relocation as lasting for up to 60 days while the landlord fixes the problem.
You still owe your normal rent during this time. The handbook is explicit about that, and it is the point most often misunderstood.
Mold Gets Its Own Rules
If mold associated with dampness would interfere with your life, health or safety if left alone, report it in writing. Within 72 hours of a reasonably complete notice, the landlord must contain it, stop water sources feeding it and install a HEPA air filtration device. After that, within a reasonable time, they must dry materials, remove or clean moldy materials and take steps to keep it from coming back.
Denver's handbook notes that small amounts of surface mold in naturally damp spots like a bathroom may not reach that level, and can often be cleaned with household mold cleaner.
Bring In the City: Denver Public Health and 311
The City and County of Denver enforces its own housing code and residential health rules. If your landlord does not address the problem, you can file a complaint with the Denver Department of Public Health and Environment by calling 3-1-1 (from outside Denver, 720-913-1311), 7 a.m. to 7 p.m., Monday through Friday. TTY: 720-913-8479. For a life-safety emergency, call 911.
For power outages or low-hanging wires, the city directs residents to Xcel Energy at 800-895-4999, since an outage may not be the landlord's fault.
A city inspection creates an official record of the condition, independent of your own photos. That record is useful whether you end up negotiating, mediating or in court.
If the Landlord Still Will Not Fix It
Denver's handbook lists three paths when a landlord fails to fix a serious health-and-safety issue or does not respond to your notice:
Repair and deduct. Hire a professional to make the repair and subtract the cost from rent. The handbook warns that this requires following specific steps carefully, and that most tenants in subsidized housing, such as Section 8 or other low-income housing, cannot use it. Talk to a lawyer first.
End the lease and move out after giving the landlord between 10 and 30 days' notice. Again, get legal advice before doing this.
File a lawsuit.
Whatever you choose, put it in writing, signed and dated.
What not to do: simply stop paying rent
The handbook calls it a myth that you no longer have to pay rent when repairs are not made. Withholding rent on your own, without following the legal process, can give your landlord grounds to file an eviction.
When the same problem keeps coming back
If the landlord fixes a problem and the same issue returns within six months, Colorado law may let you end your lease and move out, after following specific steps. Ask a legal aid office to walk through them with you.
Repairs, Retaliation and Eviction
Your landlord cannot punish you for a good-faith complaint about conditions. Examples of illegal retaliation listed in the handbook include:
Raising rent or cutting services
Ending or refusing to renew a lease without your written consent
Filing or threatening to file an eviction
Intimidating, threatening or harassing you
Charging you a fee, cost or penalty
If your landlord files an eviction against you for a reason other than an alleged substantial lease violation, and you had already given written notice of a habitability problem that was never fixed, you may be able to raise the warranty of habitability as a defense. Court users may be asked to file form JDF 109, "Unlivable Conditions at Home." This is why the written notice matters so much: a tenant who never reported the problem will have a hard time proving it in court.
A Short Checklist for Denver Renters
Photograph the problem with dates visible.
Send written notice through the channel your lease requires, with permission to enter.
Save proof of delivery.
Write down when the landlord responds and when work starts.
Cooperate with entry after proper 24-hour notice.
Call 311 if deadlines pass without action.
Keep paying rent unless a lawyer advises a specific legal remedy.
Get advice before repair-and-deduct or ending your lease.
Where to Get Help
Colorado Housing Connects: 844-926-6632 (information and mediation)
Colorado Legal Services: 303-837-1313
Denver District Court Pro-Se and Self-Help Center: 720-865-8440
Colorado Poverty Law Project: 303-532-2641
Denver Metro Fair Housing Center: 720-279-4291
Also note: under SB24-094, leases signed after January 1, 2025 must include a statement in English and Spanish telling tenants where to report or send written notice of an unsafe or uninhabitable condition. Look for it in your lease before you send your notice.
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